var Vue = (function (exports) {
    'use strict';
  
    /**
     * Make a map and return a function for checking if a key
     * is in that map.
     * IMPORTANT: all calls of this function must be prefixed with
     * \/\*#\_\_PURE\_\_\*\/
     * So that rollup can tree-shake them if necessary.
     */
    function makeMap(str, expectsLowerCase) {
        const map = Object.create(null);
        const list = str.split(',');
        for (let i = 0; i < list.length; i++) {
            map[list[i]] = true;
        }
        return expectsLowerCase ? val => !!map[val.toLowerCase()] : val => !!map[val];
    }
  
    /**
     * dev only flag -> name mapping
     */
    const PatchFlagNames = {
        [1 /* PatchFlags.TEXT */]: `TEXT`,
        [2 /* PatchFlags.CLASS */]: `CLASS`,
        [4 /* PatchFlags.STYLE */]: `STYLE`,
        [8 /* PatchFlags.PROPS */]: `PROPS`,
        [16 /* PatchFlags.FULL_PROPS */]: `FULL_PROPS`,
        [32 /* PatchFlags.HYDRATE_EVENTS */]: `HYDRATE_EVENTS`,
        [64 /* PatchFlags.STABLE_FRAGMENT */]: `STABLE_FRAGMENT`,
        [128 /* PatchFlags.KEYED_FRAGMENT */]: `KEYED_FRAGMENT`,
        [256 /* PatchFlags.UNKEYED_FRAGMENT */]: `UNKEYED_FRAGMENT`,
        [512 /* PatchFlags.NEED_PATCH */]: `NEED_PATCH`,
        [1024 /* PatchFlags.DYNAMIC_SLOTS */]: `DYNAMIC_SLOTS`,
        [2048 /* PatchFlags.DEV_ROOT_FRAGMENT */]: `DEV_ROOT_FRAGMENT`,
        [-1 /* PatchFlags.HOISTED */]: `HOISTED`,
        [-2 /* PatchFlags.BAIL */]: `BAIL`
    };
  
    /**
     * Dev only
     */
    const slotFlagsText = {
        [1 /* SlotFlags.STABLE */]: 'STABLE',
        [2 /* SlotFlags.DYNAMIC */]: 'DYNAMIC',
        [3 /* SlotFlags.FORWARDED */]: 'FORWARDED'
    };
  
    const GLOBALS_WHITE_LISTED = 'Infinity,undefined,NaN,isFinite,isNaN,parseFloat,parseInt,decodeURI,' +
        'decodeURIComponent,encodeURI,encodeURIComponent,Math,Number,Date,Array,' +
        'Object,Boolean,String,RegExp,Map,Set,JSON,Intl,BigInt';
    const isGloballyWhitelisted = /*#__PURE__*/ makeMap(GLOBALS_WHITE_LISTED);
  
    const range = 2;
    function generateCodeFrame(source, start = 0, end = source.length) {
        // Split the content into individual lines but capture the newline sequence
        // that separated each line. This is important because the actual sequence is
        // needed to properly take into account the full line length for offset
        // comparison
        let lines = source.split(/(\r?\n)/);
        // Separate the lines and newline sequences into separate arrays for easier referencing
        const newlineSequences = lines.filter((_, idx) => idx % 2 === 1);
        lines = lines.filter((_, idx) => idx % 2 === 0);
        let count = 0;
        const res = [];
        for (let i = 0; i < lines.length; i++) {
            count +=
                lines[i].length +
                    ((newlineSequences[i] && newlineSequences[i].length) || 0);
            if (count >= start) {
                for (let j = i - range; j <= i + range || end > count; j++) {
                    if (j < 0 || j >= lines.length)
                        continue;
                    const line = j + 1;
                    res.push(`${line}${' '.repeat(Math.max(3 - String(line).length, 0))}|  ${lines[j]}`);
                    const lineLength = lines[j].length;
                    const newLineSeqLength = (newlineSequences[j] && newlineSequences[j].length) || 0;
                    if (j === i) {
                        // push underline
                        const pad = start - (count - (lineLength + newLineSeqLength));
                        const length = Math.max(1, end > count ? lineLength - pad : end - start);
                        res.push(`   |  ` + ' '.repeat(pad) + '^'.repeat(length));
                    }
                    else if (j > i) {
                        if (end > count) {
                            const length = Math.max(Math.min(end - count, lineLength), 1);
                            res.push(`   |  ` + '^'.repeat(length));
                        }
                        count += lineLength + newLineSeqLength;
                    }
                }
                break;
            }
        }
        return res.join('\n');
    }
  
    function normalizeStyle(value) {
        if (isArray(value)) {
            const res = {};
            for (let i = 0; i < value.length; i++) {
                const item = value[i];
                const normalized = isString(item)
                    ? parseStringStyle(item)
                    : normalizeStyle(item);
                if (normalized) {
                    for (const key in normalized) {
                        res[key] = normalized[key];
                    }
                }
            }
            return res;
        }
        else if (isString(value)) {
            return value;
        }
        else if (isObject(value)) {
            return value;
        }
    }
    const listDelimiterRE = /;(?![^(]*\))/g;
    const propertyDelimiterRE = /:([^]+)/;
    const styleCommentRE = /\/\*.*?\*\//gs;
    function parseStringStyle(cssText) {
        const ret = {};
        cssText
            .replace(styleCommentRE, '')
            .split(listDelimiterRE)
            .forEach(item => {
            if (item) {
                const tmp = item.split(propertyDelimiterRE);
                tmp.length > 1 && (ret[tmp[0].trim()] = tmp[1].trim());
            }
        });
        return ret;
    }
    function normalizeClass(value) {
        let res = '';
        if (isString(value)) {
            res = value;
        }
        else if (isArray(value)) {
            for (let i = 0; i < value.length; i++) {
                const normalized = normalizeClass(value[i]);
                if (normalized) {
                    res += normalized + ' ';
                }
            }
        }
        else if (isObject(value)) {
            for (const name in value) {
                if (value[name]) {
                    res += name + ' ';
                }
            }
        }
        return res.trim();
    }
    function normalizeProps(props) {
        if (!props)
            return null;
        let { class: klass, style } = props;
        if (klass && !isString(klass)) {
            props.class = normalizeClass(klass);
        }
        if (style) {
            props.style = normalizeStyle(style);
        }
        return props;
    }
  
    // These tag configs are shared between compiler-dom and runtime-dom, so they
    // https://developer.mozilla.org/en-US/docs/Web/HTML/Element
    const HTML_TAGS = 'html,body,base,head,link,meta,style,title,address,article,aside,footer,' +
        'header,hgroup,h1,h2,h3,h4,h5,h6,nav,section,div,dd,dl,dt,figcaption,' +
        'figure,picture,hr,img,li,main,ol,p,pre,ul,a,b,abbr,bdi,bdo,br,cite,code,' +
        'data,dfn,em,i,kbd,mark,q,rp,rt,ruby,s,samp,small,span,strong,sub,sup,' +
        'time,u,var,wbr,area,audio,map,track,video,embed,object,param,source,' +
        'canvas,script,noscript,del,ins,caption,col,colgroup,table,thead,tbody,td,' +
        'th,tr,button,datalist,fieldset,form,input,label,legend,meter,optgroup,' +
        'option,output,progress,select,textarea,details,dialog,menu,' +
        'summary,template,blockquote,iframe,tfoot';
    // https://developer.mozilla.org/en-US/docs/Web/SVG/Element
    const SVG_TAGS = 'svg,animate,animateMotion,animateTransform,circle,clipPath,color-profile,' +
        'defs,desc,discard,ellipse,feBlend,feColorMatrix,feComponentTransfer,' +
        'feComposite,feConvolveMatrix,feDiffuseLighting,feDisplacementMap,' +
        'feDistantLight,feDropShadow,feFlood,feFuncA,feFuncB,feFuncG,feFuncR,' +
        'feGaussianBlur,feImage,feMerge,feMergeNode,feMorphology,feOffset,' +
        'fePointLight,feSpecularLighting,feSpotLight,feTile,feTurbulence,filter,' +
        'foreignObject,g,hatch,hatchpath,image,line,linearGradient,marker,mask,' +
        'mesh,meshgradient,meshpatch,meshrow,metadata,mpath,path,pattern,' +
        'polygon,polyline,radialGradient,rect,set,solidcolor,stop,switch,symbol,' +
        'text,textPath,title,tspan,unknown,use,view';
    const VOID_TAGS = 'area,base,br,col,embed,hr,img,input,link,meta,param,source,track,wbr';
    /**
     * Compiler only.
     * Do NOT use in runtime code paths unless behind `true` flag.
     */
    const isHTMLTag = /*#__PURE__*/ makeMap(HTML_TAGS);
    /**
     * Compiler only.
     * Do NOT use in runtime code paths unless behind `true` flag.
     */
    const isSVGTag = /*#__PURE__*/ makeMap(SVG_TAGS);
    /**
     * Compiler only.
     * Do NOT use in runtime code paths unless behind `true` flag.
     */
    const isVoidTag = /*#__PURE__*/ makeMap(VOID_TAGS);
  
    /**
     * On the client we only need to offer special cases for boolean attributes that
     * have different names from their corresponding dom properties:
     * - itemscope -> N/A
     * - allowfullscreen -> allowFullscreen
     * - formnovalidate -> formNoValidate
     * - ismap -> isMap
     * - nomodule -> noModule
     * - novalidate -> noValidate
     * - readonly -> readOnly
     */
    const specialBooleanAttrs = `itemscope,allowfullscreen,formnovalidate,ismap,nomodule,novalidate,readonly`;
    const isSpecialBooleanAttr = /*#__PURE__*/ makeMap(specialBooleanAttrs);
    /**
     * Boolean attributes should be included if the value is truthy or ''.
     * e.g. `<select multiple>` compiles to `{ multiple: '' }`
     */
    function includeBooleanAttr(value) {
        return !!value || value === '';
    }
  
    function looseCompareArrays(a, b) {
        if (a.length !== b.length)
            return false;
        let equal = true;
        for (let i = 0; equal && i < a.length; i++) {
            equal = looseEqual(a[i], b[i]);
        }
        return equal;
    }
    function looseEqual(a, b) {
        if (a === b)
            return true;
        let aValidType = isDate(a);
        let bValidType = isDate(b);
        if (aValidType || bValidType) {
            return aValidType && bValidType ? a.getTime() === b.getTime() : false;
        }
        aValidType = isSymbol(a);
        bValidType = isSymbol(b);
        if (aValidType || bValidType) {
            return a === b;
        }
        aValidType = isArray(a);
        bValidType = isArray(b);
        if (aValidType || bValidType) {
            return aValidType && bValidType ? looseCompareArrays(a, b) : false;
        }
        aValidType = isObject(a);
        bValidType = isObject(b);
        if (aValidType || bValidType) {
            /* istanbul ignore if: this if will probably never be called */
            if (!aValidType || !bValidType) {
                return false;
            }
            const aKeysCount = Object.keys(a).length;
            const bKeysCount = Object.keys(b).length;
            if (aKeysCount !== bKeysCount) {
                return false;
            }
            for (const key in a) {
                const aHasKey = a.hasOwnProperty(key);
                const bHasKey = b.hasOwnProperty(key);
                if ((aHasKey && !bHasKey) ||
                    (!aHasKey && bHasKey) ||
                    !looseEqual(a[key], b[key])) {
                    return false;
                }
            }
        }
        return String(a) === String(b);
    }
    function looseIndexOf(arr, val) {
        return arr.findIndex(item => looseEqual(item, val));
    }
  
    /**
     * For converting {{ interpolation }} values to displayed strings.
     * @private
     */
    const toDisplayString = (val) => {
        return isString(val)
            ? val
            : val == null
                ? ''
                : isArray(val) ||
                    (isObject(val) &&
                        (val.toString === objectToString || !isFunction(val.toString)))
                    ? JSON.stringify(val, replacer, 2)
                    : String(val);
    };
    const replacer = (_key, val) => {
        // can't use isRef here since @vue/shared has no deps
        if (val && val.__v_isRef) {
            return replacer(_key, val.value);
        }
        else if (isMap(val)) {
            return {
                [`Map(${val.size})`]: [...val.entries()].reduce((entries, [key, val]) => {
                    entries[`${key} =>`] = val;
                    return entries;
                }, {})
            };
        }
        else if (isSet(val)) {
            return {
                [`Set(${val.size})`]: [...val.values()]
            };
        }
        else if (isObject(val) && !isArray(val) && !isPlainObject(val)) {
            return String(val);
        }
        return val;
    };
  
    const EMPTY_OBJ = Object.freeze({})
        ;
    const EMPTY_ARR = Object.freeze([]) ;
    const NOOP = () => { };
    /**
     * Always return false.
     */
    const NO = () => false;
    const onRE = /^on[^a-z]/;
    const isOn = (key) => onRE.test(key);
    const isModelListener = (key) => key.startsWith('onUpdate:');
    const extend = Object.assign;
    const remove = (arr, el) => {
        const i = arr.indexOf(el);
        if (i > -1) {
            arr.splice(i, 1);
        }
    };
    const hasOwnProperty$1 = Object.prototype.hasOwnProperty;
    const hasOwn = (val, key) => hasOwnProperty$1.call(val, key);
    const isArray = Array.isArray;
    const isMap = (val) => toTypeString(val) === '[object Map]';
    const isSet = (val) => toTypeString(val) === '[object Set]';
    const isDate = (val) => toTypeString(val) === '[object Date]';
    const isRegExp = (val) => toTypeString(val) === '[object RegExp]';
    const isFunction = (val) => typeof val === 'function';
    const isString = (val) => typeof val === 'string';
    const isSymbol = (val) => typeof val === 'symbol';
    const isObject = (val) => val !== null && typeof val === 'object';
    const isPromise = (val) => {
        return isObject(val) && isFunction(val.then) && isFunction(val.catch);
    };
    const objectToString = Object.prototype.toString;
    const toTypeString = (value) => objectToString.call(value);
    const toRawType = (value) => {
        // extract "RawType" from strings like "[object RawType]"
        return toTypeString(value).slice(8, -1);
    };
    const isPlainObject = (val) => toTypeString(val) === '[object Object]';
    const isIntegerKey = (key) => isString(key) &&
        key !== 'NaN' &&
        key[0] !== '-' &&
        '' + parseInt(key, 10) === key;
    const isReservedProp = /*#__PURE__*/ makeMap(
    // the leading comma is intentional so empty string "" is also included
    ',key,ref,ref_for,ref_key,' +
        'onVnodeBeforeMount,onVnodeMounted,' +
        'onVnodeBeforeUpdate,onVnodeUpdated,' +
        'onVnodeBeforeUnmount,onVnodeUnmounted');
    const isBuiltInDirective = /*#__PURE__*/ makeMap('bind,cloak,else-if,else,for,html,if,model,on,once,pre,show,slot,text,memo');
    const cacheStringFunction = (fn) => {
        const cache = Object.create(null);
        return ((str) => {
            const hit = cache[str];
            return hit || (cache[str] = fn(str));
        });
    };
    const camelizeRE = /-(\w)/g;
    /**
     * @private
     */
    const camelize = cacheStringFunction((str) => {
        return str.replace(camelizeRE, (_, c) => (c ? c.toUpperCase() : ''));
    });
    const hyphenateRE = /\B([A-Z])/g;
    /**
     * @private
     */
    const hyphenate = cacheStringFunction((str) => str.replace(hyphenateRE, '-$1').toLowerCase());
    /**
     * @private
     */
    const capitalize = cacheStringFunction((str) => str.charAt(0).toUpperCase() + str.slice(1));
    /**
     * @private
     */
    const toHandlerKey = cacheStringFunction((str) => str ? `on${capitalize(str)}` : ``);
    // compare whether a value has changed, accounting for NaN.
    const hasChanged = (value, oldValue) => !Object.is(value, oldValue);
    const invokeArrayFns = (fns, arg) => {
        for (let i = 0; i < fns.length; i++) {
            fns[i](arg);
        }
    };
    const def = (obj, key, value) => {
        Object.defineProperty(obj, key, {
            configurable: true,
            enumerable: false,
            value
        });
    };
    /**
     * "123-foo" will be parsed to 123
     * This is used for the .number modifier in v-model
     */
    const looseToNumber = (val) => {
        const n = parseFloat(val);
        return isNaN(n) ? val : n;
    };
    /**
     * Only conerces number-like strings
     * "123-foo" will be returned as-is
     */
    const toNumber = (val) => {
        const n = isString(val) ? Number(val) : NaN;
        return isNaN(n) ? val : n;
    };
    let _globalThis;
    const getGlobalThis = () => {
        return (_globalThis ||
            (_globalThis =
                typeof globalThis !== 'undefined'
                    ? globalThis
                    : typeof self !== 'undefined'
                        ? self
                        : typeof window !== 'undefined'
                            ? window
                            : typeof global !== 'undefined'
                                ? global
                                : {}));
    };
  
    function warn$1(msg, ...args) {
        console.warn(`[Vue warn] ${msg}`, ...args);
    }
  
    let activeEffectScope;
    class EffectScope {
        constructor(detached = false) {
            this.detached = detached;
            /**
             * @internal
             */
            this._active = true;
            /**
             * @internal
             */
            this.effects = [];
            /**
             * @internal
             */
            this.cleanups = [];
            this.parent = activeEffectScope;
            if (!detached && activeEffectScope) {
                this.index =
                    (activeEffectScope.scopes || (activeEffectScope.scopes = [])).push(this) - 1;
            }
        }
        get active() {
            return this._active;
        }
        run(fn) {
            if (this._active) {
                const currentEffectScope = activeEffectScope;
                try {
                    activeEffectScope = this;
                    return fn();
                }
                finally {
                    activeEffectScope = currentEffectScope;
                }
            }
            else {
                warn$1(`cannot run an inactive effect scope.`);
            }
        }
        /**
         * This should only be called on non-detached scopes
         * @internal
         */
        on() {
            activeEffectScope = this;
        }
        /**
         * This should only be called on non-detached scopes
         * @internal
         */
        off() {
            activeEffectScope = this.parent;
        }
        stop(fromParent) {
            if (this._active) {
                let i, l;
                for (i = 0, l = this.effects.length; i < l; i++) {
                    this.effects[i].stop();
                }
                for (i = 0, l = this.cleanups.length; i < l; i++) {
                    this.cleanups[i]();
                }
                if (this.scopes) {
                    for (i = 0, l = this.scopes.length; i < l; i++) {
                        this.scopes[i].stop(true);
                    }
                }
                // nested scope, dereference from parent to avoid memory leaks
                if (!this.detached && this.parent && !fromParent) {
                    // optimized O(1) removal
                    const last = this.parent.scopes.pop();
                    if (last && last !== this) {
                        this.parent.scopes[this.index] = last;
                        last.index = this.index;
                    }
                }
                this.parent = undefined;
                this._active = false;
            }
        }
    }
    function effectScope(detached) {
        return new EffectScope(detached);
    }
    function recordEffectScope(effect, scope = activeEffectScope) {
        if (scope && scope.active) {
            scope.effects.push(effect);
        }
    }
    function getCurrentScope() {
        return activeEffectScope;
    }
    function onScopeDispose(fn) {
        if (activeEffectScope) {
            activeEffectScope.cleanups.push(fn);
        }
        else {
            warn$1(`onScopeDispose() is called when there is no active effect scope` +
                ` to be associated with.`);
        }
    }
  
    const createDep = (effects) => {
        const dep = new Set(effects);
        dep.w = 0;
        dep.n = 0;
        return dep;
    };
    const wasTracked = (dep) => (dep.w & trackOpBit) > 0;
    const newTracked = (dep) => (dep.n & trackOpBit) > 0;
    const initDepMarkers = ({ deps }) => {
        if (deps.length) {
            for (let i = 0; i < deps.length; i++) {
                deps[i].w |= trackOpBit; // set was tracked
            }
        }
    };
    const finalizeDepMarkers = (effect) => {
        const { deps } = effect;
        if (deps.length) {
            let ptr = 0;
            for (let i = 0; i < deps.length; i++) {
                const dep = deps[i];
                if (wasTracked(dep) && !newTracked(dep)) {
                    dep.delete(effect);
                }
                else {
                    deps[ptr++] = dep;
                }
                // clear bits
                dep.w &= ~trackOpBit;
                dep.n &= ~trackOpBit;
            }
            deps.length = ptr;
        }
    };
  
    const targetMap = new WeakMap();
    // The number of effects currently being tracked recursively.
    let effectTrackDepth = 0;
    let trackOpBit = 1;
    /**
     * The bitwise track markers support at most 30 levels of recursion.
     * This value is chosen to enable modern JS engines to use a SMI on all platforms.
     * When recursion depth is greater, fall back to using a full cleanup.
     */
    const maxMarkerBits = 30;
    let activeEffect;
    const ITERATE_KEY = Symbol('iterate' );
    const MAP_KEY_ITERATE_KEY = Symbol('Map key iterate' );
    class ReactiveEffect {
        constructor(fn, scheduler = null, scope) {
            this.fn = fn;
            this.scheduler = scheduler;
            this.active = true;
            this.deps = [];
            this.parent = undefined;
            recordEffectScope(this, scope);
        }
        run() {
            if (!this.active) {
                return this.fn();
            }
            let parent = activeEffect;
            let lastShouldTrack = shouldTrack;
            while (parent) {
                if (parent === this) {
                    return;
                }
                parent = parent.parent;
            }
            try {
                this.parent = activeEffect;
                activeEffect = this;
                shouldTrack = true;
                trackOpBit = 1 << ++effectTrackDepth;
                if (effectTrackDepth <= maxMarkerBits) {
                    initDepMarkers(this);
                }
                else {
                    cleanupEffect(this);
                }
                return this.fn();
            }
            finally {
                if (effectTrackDepth <= maxMarkerBits) {
                    finalizeDepMarkers(this);
                }
                trackOpBit = 1 << --effectTrackDepth;
                activeEffect = this.parent;
                shouldTrack = lastShouldTrack;
                this.parent = undefined;
                if (this.deferStop) {
                    this.stop();
                }
            }
        }
        stop() {
            // stopped while running itself - defer the cleanup
            if (activeEffect === this) {
                this.deferStop = true;
            }
            else if (this.active) {
                cleanupEffect(this);
                if (this.onStop) {
                    this.onStop();
                }
                this.active = false;
            }
        }
    }
    function cleanupEffect(effect) {
        const { deps } = effect;
        if (deps.length) {
            for (let i = 0; i < deps.length; i++) {
                deps[i].delete(effect);
            }
            deps.length = 0;
        }
    }
    function effect(fn, options) {
        if (fn.effect) {
            fn = fn.effect.fn;
        }
        const _effect = new ReactiveEffect(fn);
        if (options) {
            extend(_effect, options);
            if (options.scope)
                recordEffectScope(_effect, options.scope);
        }
        if (!options || !options.lazy) {
            _effect.run();
        }
        const runner = _effect.run.bind(_effect);
        runner.effect = _effect;
        return runner;
    }
    function stop(runner) {
        runner.effect.stop();
    }
    let shouldTrack = true;
    const trackStack = [];
    function pauseTracking() {
        trackStack.push(shouldTrack);
        shouldTrack = false;
    }
    function resetTracking() {
        const last = trackStack.pop();
        shouldTrack = last === undefined ? true : last;
    }
    function track(target, type, key) {
        if (shouldTrack && activeEffect) {
            let depsMap = targetMap.get(target);
            if (!depsMap) {
                targetMap.set(target, (depsMap = new Map()));
            }
            let dep = depsMap.get(key);
            if (!dep) {
                depsMap.set(key, (dep = createDep()));
            }
            const eventInfo = { effect: activeEffect, target, type, key }
                ;
            trackEffects(dep, eventInfo);
        }
    }
    function trackEffects(dep, debuggerEventExtraInfo) {
        let shouldTrack = false;
        if (effectTrackDepth <= maxMarkerBits) {
            if (!newTracked(dep)) {
                dep.n |= trackOpBit; // set newly tracked
                shouldTrack = !wasTracked(dep);
            }
        }
        else {
            // Full cleanup mode.
            shouldTrack = !dep.has(activeEffect);
        }
        if (shouldTrack) {
            dep.add(activeEffect);
            activeEffect.deps.push(dep);
            if (activeEffect.onTrack) {
                activeEffect.onTrack(Object.assign({ effect: activeEffect }, debuggerEventExtraInfo));
            }
        }
    }
    function trigger(target, type, key, newValue, oldValue, oldTarget) {
        const depsMap = targetMap.get(target);
        if (!depsMap) {
            // never been tracked
            return;
        }
        let deps = [];
        if (type === "clear" /* TriggerOpTypes.CLEAR */) {
            // collection being cleared
            // trigger all effects for target
            deps = [...depsMap.values()];
        }
        else if (key === 'length' && isArray(target)) {
            const newLength = Number(newValue);
            depsMap.forEach((dep, key) => {
                if (key === 'length' || key >= newLength) {
                    deps.push(dep);
                }
            });
        }
        else {
            // schedule runs for SET | ADD | DELETE
            if (key !== void 0) {
                deps.push(depsMap.get(key));
            }
            // also run for iteration key on ADD | DELETE | Map.SET
            switch (type) {
                case "add" /* TriggerOpTypes.ADD */:
                    if (!isArray(target)) {
                        deps.push(depsMap.get(ITERATE_KEY));
                        if (isMap(target)) {
                            deps.push(depsMap.get(MAP_KEY_ITERATE_KEY));
                        }
                    }
                    else if (isIntegerKey(key)) {
                        // new index added to array -> length changes
                        deps.push(depsMap.get('length'));
                    }
                    break;
                case "delete" /* TriggerOpTypes.DELETE */:
                    if (!isArray(target)) {
                        deps.push(depsMap.get(ITERATE_KEY));
                        if (isMap(target)) {
                            deps.push(depsMap.get(MAP_KEY_ITERATE_KEY));
                        }
                    }
                    break;
                case "set" /* TriggerOpTypes.SET */:
                    if (isMap(target)) {
                        deps.push(depsMap.get(ITERATE_KEY));
                    }
                    break;
            }
        }
        const eventInfo = { target, type, key, newValue, oldValue, oldTarget }
            ;
        if (deps.length === 1) {
            if (deps[0]) {
                {
                    triggerEffects(deps[0], eventInfo);
                }
            }
        }
        else {
            const effects = [];
            for (const dep of deps) {
                if (dep) {
                    effects.push(...dep);
                }
            }
            {
                triggerEffects(createDep(effects), eventInfo);
            }
        }
    }
    function triggerEffects(dep, debuggerEventExtraInfo) {
        // spread into array for stabilization
        const effects = isArray(dep) ? dep : [...dep];
        for (const effect of effects) {
            if (effect.computed) {
                triggerEffect(effect, debuggerEventExtraInfo);
            }
        }
        for (const effect of effects) {
            if (!effect.computed) {
                triggerEffect(effect, debuggerEventExtraInfo);
            }
        }
    }
    function triggerEffect(effect, debuggerEventExtraInfo) {
        if (effect !== activeEffect || effect.allowRecurse) {
            if (effect.onTrigger) {
                effect.onTrigger(extend({ effect }, debuggerEventExtraInfo));
            }
            if (effect.scheduler) {
                effect.scheduler();
            }
            else {
                effect.run();
            }
        }
    }
    function getDepFromReactive(object, key) {
        var _a;
        return (_a = targetMap.get(object)) === null || _a === void 0 ? void 0 : _a.get(key);
    }
  
    const isNonTrackableKeys = /*#__PURE__*/ makeMap(`__proto__,__v_isRef,__isVue`);
    const builtInSymbols = new Set(
    /*#__PURE__*/
    Object.getOwnPropertyNames(Symbol)
        // ios10.x Object.getOwnPropertyNames(Symbol) can enumerate 'arguments' and 'caller'
        // but accessing them on Symbol leads to TypeError because Symbol is a strict mode
        // function
        .filter(key => key !== 'arguments' && key !== 'caller')
        .map(key => Symbol[key])
        .filter(isSymbol));
    const get$1 = /*#__PURE__*/ createGetter();
    const shallowGet = /*#__PURE__*/ createGetter(false, true);
    const readonlyGet = /*#__PURE__*/ createGetter(true);
    const shallowReadonlyGet = /*#__PURE__*/ createGetter(true, true);
    const arrayInstrumentations = /*#__PURE__*/ createArrayInstrumentations();
    function createArrayInstrumentations() {
        const instrumentations = {};
        ['includes', 'indexOf', 'lastIndexOf'].forEach(key => {
            instrumentations[key] = function (...args) {
                const arr = toRaw(this);
                for (let i = 0, l = this.length; i < l; i++) {
                    track(arr, "get" /* TrackOpTypes.GET */, i + '');
                }
                // we run the method using the original args first (which may be reactive)
                const res = arr[key](...args);
                if (res === -1 || res === false) {
                    // if that didn't work, run it again using raw values.
                    return arr[key](...args.map(toRaw));
                }
                else {
                    return res;
                }
            };
        });
        ['push', 'pop', 'shift', 'unshift', 'splice'].forEach(key => {
            instrumentations[key] = function (...args) {
                pauseTracking();
                const res = toRaw(this)[key].apply(this, args);
                resetTracking();
                return res;
            };
        });
        return instrumentations;
    }
    function hasOwnProperty(key) {
        const obj = toRaw(this);
        track(obj, "has" /* TrackOpTypes.HAS */, key);
        return obj.hasOwnProperty(key);
    }
    function createGetter(isReadonly = false, shallow = false) {
        return function get(target, key, receiver) {
            if (key === "__v_isReactive" /* ReactiveFlags.IS_REACTIVE */) {
                return !isReadonly;
            }
            else if (key === "__v_isReadonly" /* ReactiveFlags.IS_READONLY */) {
                return isReadonly;
            }
            else if (key === "__v_isShallow" /* ReactiveFlags.IS_SHALLOW */) {
                return shallow;
            }
            else if (key === "__v_raw" /* ReactiveFlags.RAW */ &&
                receiver ===
                    (isReadonly
                        ? shallow
                            ? shallowReadonlyMap
                            : readonlyMap
                        : shallow
                            ? shallowReactiveMap
                            : reactiveMap).get(target)) {
                return target;
            }
            const targetIsArray = isArray(target);
            if (!isReadonly) {
                if (targetIsArray && hasOwn(arrayInstrumentations, key)) {
                    return Reflect.get(arrayInstrumentations, key, receiver);
                }
                if (key === 'hasOwnProperty') {
                    return hasOwnProperty;
                }
            }
            const res = Reflect.get(target, key, receiver);
            if (isSymbol(key) ? builtInSymbols.has(key) : isNonTrackableKeys(key)) {
                return res;
            }
            if (!isReadonly) {
                track(target, "get" /* TrackOpTypes.GET */, key);
            }
            if (shallow) {
                return res;
            }
            if (isRef(res)) {
                // ref unwrapping - skip unwrap for Array + integer key.
                return targetIsArray && isIntegerKey(key) ? res : res.value;
            }
            if (isObject(res)) {
                // Convert returned value into a proxy as well. we do the isObject check
                // here to avoid invalid value warning. Also need to lazy access readonly
                // and reactive here to avoid circular dependency.
                return isReadonly ? readonly(res) : reactive(res);
            }
            return res;
        };
    }
    const set$1 = /*#__PURE__*/ createSetter();
    const shallowSet = /*#__PURE__*/ createSetter(true);
    function createSetter(shallow = false) {
        return function set(target, key, value, receiver) {
            let oldValue = target[key];
            if (isReadonly(oldValue) && isRef(oldValue) && !isRef(value)) {
                return false;
            }
            if (!shallow) {
                if (!isShallow(value) && !isReadonly(value)) {
                    oldValue = toRaw(oldValue);
                    value = toRaw(value);
                }
                if (!isArray(target) && isRef(oldValue) && !isRef(value)) {
                    oldValue.value = value;
                    return true;
                }
            }
            const hadKey = isArray(target) && isIntegerKey(key)
                ? Number(key) < target.length
                : hasOwn(target, key);
            const result = Reflect.set(target, key, value, receiver);
            // don't trigger if target is something up in the prototype chain of original
            if (target === toRaw(receiver)) {
                if (!hadKey) {
                    trigger(target, "add" /* TriggerOpTypes.ADD */, key, value);
                }
                else if (hasChanged(value, oldValue)) {
                    trigger(target, "set" /* TriggerOpTypes.SET */, key, value, oldValue);
                }
            }
            return result;
        };
    }
    function deleteProperty(target, key) {
        const hadKey = hasOwn(target, key);
        const oldValue = target[key];
        const result = Reflect.deleteProperty(target, key);
        if (result && hadKey) {
            trigger(target, "delete" /* TriggerOpTypes.DELETE */, key, undefined, oldValue);
        }
        return result;
    }
    function has$1(target, key) {
        const result = Reflect.has(target, key);
        if (!isSymbol(key) || !builtInSymbols.has(key)) {
            track(target, "has" /* TrackOpTypes.HAS */, key);
        }
        return result;
    }
    function ownKeys(target) {
        track(target, "iterate" /* TrackOpTypes.ITERATE */, isArray(target) ? 'length' : ITERATE_KEY);
        return Reflect.ownKeys(target);
    }
    const mutableHandlers = {
        get: get$1,
        set: set$1,
        deleteProperty,
        has: has$1,
        ownKeys
    };
    const readonlyHandlers = {
        get: readonlyGet,
        set(target, key) {
            {
                warn$1(`Set operation on key "${String(key)}" failed: target is readonly.`, target);
            }
            return true;
        },
        deleteProperty(target, key) {
            {
                warn$1(`Delete operation on key "${String(key)}" failed: target is readonly.`, target);
            }
            return true;
        }
    };
    const shallowReactiveHandlers = /*#__PURE__*/ extend({}, mutableHandlers, {
        get: shallowGet,
        set: shallowSet
    });
    // Props handlers are special in the sense that it should not unwrap top-level
    // refs (in order to allow refs to be explicitly passed down), but should
    // retain the reactivity of the normal readonly object.
    const shallowReadonlyHandlers = /*#__PURE__*/ extend({}, readonlyHandlers, {
        get: shallowReadonlyGet
    });
  
    const toShallow = (value) => value;
    const getProto = (v) => Reflect.getPrototypeOf(v);
    function get(target, key, isReadonly = false, isShallow = false) {
        // #1772: readonly(reactive(Map)) should return readonly + reactive version
        // of the value
        target = target["__v_raw" /* ReactiveFlags.RAW */];
        const rawTarget = toRaw(target);
        const rawKey = toRaw(key);
        if (!isReadonly) {
            if (key !== rawKey) {
                track(rawTarget, "get" /* TrackOpTypes.GET */, key);
            }
            track(rawTarget, "get" /* TrackOpTypes.GET */, rawKey);
        }
        const { has } = getProto(rawTarget);
        const wrap = isShallow ? toShallow : isReadonly ? toReadonly : toReactive;
        if (has.call(rawTarget, key)) {
            return wrap(target.get(key));
        }
        else if (has.call(rawTarget, rawKey)) {
            return wrap(target.get(rawKey));
        }
        else if (target !== rawTarget) {
            // #3602 readonly(reactive(Map))
            // ensure that the nested reactive `Map` can do tracking for itself
            target.get(key);
        }
    }
    function has(key, isReadonly = false) {
        const target = this["__v_raw" /* ReactiveFlags.RAW */];
        const rawTarget = toRaw(target);
        const rawKey = toRaw(key);
        if (!isReadonly) {
            if (key !== rawKey) {
                track(rawTarget, "has" /* TrackOpTypes.HAS */, key);
            }
            track(rawTarget, "has" /* TrackOpTypes.HAS */, rawKey);
        }
        return key === rawKey
            ? target.has(key)
            : target.has(key) || target.has(rawKey);
    }
    function size(target, isReadonly = false) {
        target = target["__v_raw" /* ReactiveFlags.RAW */];
        !isReadonly && track(toRaw(target), "iterate" /* TrackOpTypes.ITERATE */, ITERATE_KEY);
        return Reflect.get(target, 'size', target);
    }
    function add(value) {
        value = toRaw(value);
        const target = toRaw(this);
        const proto = getProto(target);
        const hadKey = proto.has.call(target, value);
        if (!hadKey) {
            target.add(value);
            trigger(target, "add" /* TriggerOpTypes.ADD */, value, value);
        }
        return this;
    }
    function set(key, value) {
        value = toRaw(value);
        const target = toRaw(this);
        const { has, get } = getProto(target);
        let hadKey = has.call(target, key);
        if (!hadKey) {
            key = toRaw(key);
            hadKey = has.call(target, key);
        }
        else {
            checkIdentityKeys(target, has, key);
        }
        const oldValue = get.call(target, key);
        target.set(key, value);
        if (!hadKey) {
            trigger(target, "add" /* TriggerOpTypes.ADD */, key, value);
        }
        else if (hasChanged(value, oldValue)) {
            trigger(target, "set" /* TriggerOpTypes.SET */, key, value, oldValue);
        }
        return this;
    }
    function deleteEntry(key) {
        const target = toRaw(this);
        const { has, get } = getProto(target);
        let hadKey = has.call(target, key);
        if (!hadKey) {
            key = toRaw(key);
            hadKey = has.call(target, key);
        }
        else {
            checkIdentityKeys(target, has, key);
        }
        const oldValue = get ? get.call(target, key) : undefined;
        // forward the operation before queueing reactions
        const result = target.delete(key);
        if (hadKey) {
            trigger(target, "delete" /* TriggerOpTypes.DELETE */, key, undefined, oldValue);
        }
        return result;
    }
    function clear() {
        const target = toRaw(this);
        const hadItems = target.size !== 0;
        const oldTarget = isMap(target)
                ? new Map(target)
                : new Set(target)
            ;
        // forward the operation before queueing reactions
        const result = target.clear();
        if (hadItems) {
            trigger(target, "clear" /* TriggerOpTypes.CLEAR */, undefined, undefined, oldTarget);
        }
        return result;
    }
    function createForEach(isReadonly, isShallow) {
        return function forEach(callback, thisArg) {
            const observed = this;
            const target = observed["__v_raw" /* ReactiveFlags.RAW */];
            const rawTarget = toRaw(target);
            const wrap = isShallow ? toShallow : isReadonly ? toReadonly : toReactive;
            !isReadonly && track(rawTarget, "iterate" /* TrackOpTypes.ITERATE */, ITERATE_KEY);
            return target.forEach((value, key) => {
                // important: make sure the callback is
                // 1. invoked with the reactive map as `this` and 3rd arg
                // 2. the value received should be a corresponding reactive/readonly.
                return callback.call(thisArg, wrap(value), wrap(key), observed);
            });
        };
    }
    function createIterableMethod(method, isReadonly, isShallow) {
        return function (...args) {
            const target = this["__v_raw" /* ReactiveFlags.RAW */];
            const rawTarget = toRaw(target);
            const targetIsMap = isMap(rawTarget);
            const isPair = method === 'entries' || (method === Symbol.iterator && targetIsMap);
            const isKeyOnly = method === 'keys' && targetIsMap;
            const innerIterator = target[method](...args);
            const wrap = isShallow ? toShallow : isReadonly ? toReadonly : toReactive;
            !isReadonly &&
                track(rawTarget, "iterate" /* TrackOpTypes.ITERATE */, isKeyOnly ? MAP_KEY_ITERATE_KEY : ITERATE_KEY);
            // return a wrapped iterator which returns observed versions of the
            // values emitted from the real iterator
            return {
                // iterator protocol
                next() {
                    const { value, done } = innerIterator.next();
                    return done
                        ? { value, done }
                        : {
                            value: isPair ? [wrap(value[0]), wrap(value[1])] : wrap(value),
                            done
                        };
                },
                // iterable protocol
                [Symbol.iterator]() {
                    return this;
                }
            };
        };
    }
    function createReadonlyMethod(type) {
        return function (...args) {
            {
                const key = args[0] ? `on key "${args[0]}" ` : ``;
                console.warn(`${capitalize(type)} operation ${key}failed: target is readonly.`, toRaw(this));
            }
            return type === "delete" /* TriggerOpTypes.DELETE */ ? false : this;
        };
    }
    function createInstrumentations() {
        const mutableInstrumentations = {
            get(key) {
                return get(this, key);
            },
            get size() {
                return size(this);
            },
            has,
            add,
            set,
            delete: deleteEntry,
            clear,
            forEach: createForEach(false, false)
        };
        const shallowInstrumentations = {
            get(key) {
                return get(this, key, false, true);
            },
            get size() {
                return size(this);
            },
            has,
            add,
            set,
            delete: deleteEntry,
            clear,
            forEach: createForEach(false, true)
        };
        const readonlyInstrumentations = {
            get(key) {
                return get(this, key, true);
            },
            get size() {
                return size(this, true);
            },
            has(key) {
                return has.call(this, key, true);
            },
            add: createReadonlyMethod("add" /* TriggerOpTypes.ADD */),
            set: createReadonlyMethod("set" /* TriggerOpTypes.SET */),
            delete: createReadonlyMethod("delete" /* TriggerOpTypes.DELETE */),
            clear: createReadonlyMethod("clear" /* TriggerOpTypes.CLEAR */),
            forEach: createForEach(true, false)
        };
        const shallowReadonlyInstrumentations = {
            get(key) {
                return get(this, key, true, true);
            },
            get size() {
                return size(this, true);
            },
            has(key) {
                return has.call(this, key, true);
            },
            add: createReadonlyMethod("add" /* TriggerOpTypes.ADD */),
            set: createReadonlyMethod("set" /* TriggerOpTypes.SET */),
            delete: createReadonlyMethod("delete" /* TriggerOpTypes.DELETE */),
            clear: createReadonlyMethod("clear" /* TriggerOpTypes.CLEAR */),
            forEach: createForEach(true, true)
        };
        const iteratorMethods = ['keys', 'values', 'entries', Symbol.iterator];
        iteratorMethods.forEach(method => {
            mutableInstrumentations[method] = createIterableMethod(method, false, false);
            readonlyInstrumentations[method] = createIterableMethod(method, true, false);
            shallowInstrumentations[method] = createIterableMethod(method, false, true);
            shallowReadonlyInstrumentations[method] = createIterableMethod(method, true, true);
        });
        return [
            mutableInstrumentations,
            readonlyInstrumentations,
            shallowInstrumentations,
            shallowReadonlyInstrumentations
        ];
    }
    const [mutableInstrumentations, readonlyInstrumentations, shallowInstrumentations, shallowReadonlyInstrumentations] = /* #__PURE__*/ createInstrumentations();
    function createInstrumentationGetter(isReadonly, shallow) {
        const instrumentations = shallow
            ? isReadonly
                ? shallowReadonlyInstrumentations
                : shallowInstrumentations
            : isReadonly
                ? readonlyInstrumentations
                : mutableInstrumentations;
        return (target, key, receiver) => {
            if (key === "__v_isReactive" /* ReactiveFlags.IS_REACTIVE */) {
                return !isReadonly;
            }
            else if (key === "__v_isReadonly" /* ReactiveFlags.IS_READONLY */) {
                return isReadonly;
            }
            else if (key === "__v_raw" /* ReactiveFlags.RAW */) {
                return target;
            }
            return Reflect.get(hasOwn(instrumentations, key) && key in target
                ? instrumentations
                : target, key, receiver);
        };
    }
    const mutableCollectionHandlers = {
        get: /*#__PURE__*/ createInstrumentationGetter(false, false)
    };
    const shallowCollectionHandlers = {
        get: /*#__PURE__*/ createInstrumentationGetter(false, true)
    };
    const readonlyCollectionHandlers = {
        get: /*#__PURE__*/ createInstrumentationGetter(true, false)
    };
    const shallowReadonlyCollectionHandlers = {
        get: /*#__PURE__*/ createInstrumentationGetter(true, true)
    };
    function checkIdentityKeys(target, has, key) {
        const rawKey = toRaw(key);
        if (rawKey !== key && has.call(target, rawKey)) {
            const type = toRawType(target);
            console.warn(`Reactive ${type} contains both the raw and reactive ` +
                `versions of the same object${type === `Map` ? ` as keys` : ``}, ` +
                `which can lead to inconsistencies. ` +
                `Avoid differentiating between the raw and reactive versions ` +
                `of an object and only use the reactive version if possible.`);
        }
    }
  
    const reactiveMap = new WeakMap();
    const shallowReactiveMap = new WeakMap();
    const readonlyMap = new WeakMap();
    const shallowReadonlyMap = new WeakMap();
    function targetTypeMap(rawType) {
        switch (rawType) {
            case 'Object':
            case 'Array':
                return 1 /* TargetType.COMMON */;
            case 'Map':
            case 'Set':
            case 'WeakMap':
            case 'WeakSet':
                return 2 /* TargetType.COLLECTION */;
            default:
                return 0 /* TargetType.INVALID */;
        }
    }
    function getTargetType(value) {
        return value["__v_skip" /* ReactiveFlags.SKIP */] || !Object.isExtensible(value)
            ? 0 /* TargetType.INVALID */
            : targetTypeMap(toRawType(value));
    }
    function reactive(target) {
        // if trying to observe a readonly proxy, return the readonly version.
        if (isReadonly(target)) {
            return target;
        }
        return createReactiveObject(target, false, mutableHandlers, mutableCollectionHandlers, reactiveMap);
    }
    /**
     * Return a shallowly-reactive copy of the original object, where only the root
     * level properties are reactive. It also does not auto-unwrap refs (even at the
     * root level).
     */
    function shallowReactive(target) {
        return createReactiveObject(target, false, shallowReactiveHandlers, shallowCollectionHandlers, shallowReactiveMap);
    }
    /**
     * Creates a readonly copy of the original object. Note the returned copy is not
     * made reactive, but `readonly` can be called on an already reactive object.
     */
    function readonly(target) {
        return createReactiveObject(target, true, readonlyHandlers, readonlyCollectionHandlers, readonlyMap);
    }
    /**
     * Returns a reactive-copy of the original object, where only the root level
     * properties are readonly, and does NOT unwrap refs nor recursively convert
     * returned properties.
     * This is used for creating the props proxy object for stateful components.
     */
    function shallowReadonly(target) {
        return createReactiveObject(target, true, shallowReadonlyHandlers, shallowReadonlyCollectionHandlers, shallowReadonlyMap);
    }
    function createReactiveObject(target, isReadonly, baseHandlers, collectionHandlers, proxyMap) {
        if (!isObject(target)) {
            {
                console.warn(`value cannot be made reactive: ${String(target)}`);
            }
            return target;
        }
        // target is already a Proxy, return it.
        // exception: calling readonly() on a reactive object
        if (target["__v_raw" /* ReactiveFlags.RAW */] &&
            !(isReadonly && target["__v_isReactive" /* ReactiveFlags.IS_REACTIVE */])) {
            return target;
        }
        // target already has corresponding Proxy
        const existingProxy = proxyMap.get(target);
        if (existingProxy) {
            return existingProxy;
        }
        // only specific value types can be observed.
        const targetType = getTargetType(target);
        if (targetType === 0 /* TargetType.INVALID */) {
            return target;
        }
        const proxy = new Proxy(target, targetType === 2 /* TargetType.COLLECTION */ ? collectionHandlers : baseHandlers);
        proxyMap.set(target, proxy);
        return proxy;
    }
    function isReactive(value) {
        if (isReadonly(value)) {
            return isReactive(value["__v_raw" /* ReactiveFlags.RAW */]);
        }
        return !!(value && value["__v_isReactive" /* ReactiveFlags.IS_REACTIVE */]);
    }
    function isReadonly(value) {
        return !!(value && value["__v_isReadonly" /* ReactiveFlags.IS_READONLY */]);
    }
    function isShallow(value) {
        return !!(value && value["__v_isShallow" /* ReactiveFlags.IS_SHALLOW */]);
    }
    function isProxy(value) {
        return isReactive(value) || isReadonly(value);
    }
    function toRaw(observed) {
        const raw = observed && observed["__v_raw" /* ReactiveFlags.RAW */];
        return raw ? toRaw(raw) : observed;
    }
    function markRaw(value) {
        def(value, "__v_skip" /* ReactiveFlags.SKIP */, true);
        return value;
    }
    const toReactive = (value) => isObject(value) ? reactive(value) : value;
    const toReadonly = (value) => isObject(value) ? readonly(value) : value;
  
    function trackRefValue(ref) {
        if (shouldTrack && activeEffect) {
            ref = toRaw(ref);
            {
                trackEffects(ref.dep || (ref.dep = createDep()), {
                    target: ref,
                    type: "get" /* TrackOpTypes.GET */,
                    key: 'value'
                });
            }
        }
    }
    function triggerRefValue(ref, newVal) {
        ref = toRaw(ref);
        const dep = ref.dep;
        if (dep) {
            {
                triggerEffects(dep, {
                    target: ref,
                    type: "set" /* TriggerOpTypes.SET */,
                    key: 'value',
                    newValue: newVal
                });
            }
        }
    }
    function isRef(r) {
        return !!(r && r.__v_isRef === true);
    }
    function ref(value) {
        return createRef(value, false);
    }
    function shallowRef(value) {
        return createRef(value, true);
    }
    function createRef(rawValue, shallow) {
        if (isRef(rawValue)) {
            return rawValue;
        }
        return new RefImpl(rawValue, shallow);
    }
    class RefImpl {
        constructor(value, __v_isShallow) {
            this.__v_isShallow = __v_isShallow;
            this.dep = undefined;
            this.__v_isRef = true;
            this._rawValue = __v_isShallow ? value : toRaw(value);
            this._value = __v_isShallow ? value : toReactive(value);
        }
        get value() {
            trackRefValue(this);
            return this._value;
        }
        set value(newVal) {
            const useDirectValue = this.__v_isShallow || isShallow(newVal) || isReadonly(newVal);
            newVal = useDirectValue ? newVal : toRaw(newVal);
            if (hasChanged(newVal, this._rawValue)) {
                this._rawValue = newVal;
                this._value = useDirectValue ? newVal : toReactive(newVal);
                triggerRefValue(this, newVal);
            }
        }
    }
    function triggerRef(ref) {
        triggerRefValue(ref, ref.value );
    }
    function unref(ref) {
        return isRef(ref) ? ref.value : ref;
    }
    const shallowUnwrapHandlers = {
        get: (target, key, receiver) => unref(Reflect.get(target, key, receiver)),
        set: (target, key, value, receiver) => {
            const oldValue = target[key];
            if (isRef(oldValue) && !isRef(value)) {
                oldValue.value = value;
                return true;
            }
            else {
                return Reflect.set(target, key, value, receiver);
            }
        }
    };
    function proxyRefs(objectWithRefs) {
        return isReactive(objectWithRefs)
            ? objectWithRefs
            : new Proxy(objectWithRefs, shallowUnwrapHandlers);
    }
    class CustomRefImpl {
        constructor(factory) {
            this.dep = undefined;
            this.__v_isRef = true;
            const { get, set } = factory(() => trackRefValue(this), () => triggerRefValue(this));
            this._get = get;
            this._set = set;
        }
        get value() {
            return this._get();
        }
        set value(newVal) {
            this._set(newVal);
        }
    }
    function customRef(factory) {
        return new CustomRefImpl(factory);
    }
    function toRefs(object) {
        if (!isProxy(object)) {
            console.warn(`toRefs() expects a reactive object but received a plain one.`);
        }
        const ret = isArray(object) ? new Array(object.length) : {};
        for (const key in object) {
            ret[key] = toRef(object, key);
        }
        return ret;
    }
    class ObjectRefImpl {
        constructor(_object, _key, _defaultValue) {
            this._object = _object;
            this._key = _key;
            this._defaultValue = _defaultValue;
            this.__v_isRef = true;
        }
        get value() {
            const val = this._object[this._key];
            return val === undefined ? this._defaultValue : val;
        }
        set value(newVal) {
            this._object[this._key] = newVal;
        }
        get dep() {
            return getDepFromReactive(toRaw(this._object), this._key);
        }
    }
    function toRef(object, key, defaultValue) {
        const val = object[key];
        return isRef(val)
            ? val
            : new ObjectRefImpl(object, key, defaultValue);
    }
  
    var _a;
    class ComputedRefImpl {
        constructor(getter, _setter, isReadonly, isSSR) {
            this._setter = _setter;
            this.dep = undefined;
            this.__v_isRef = true;
            this[_a] = false;
            this._dirty = true;
            this.effect = new ReactiveEffect(getter, () => {
                if (!this._dirty) {
                    this._dirty = true;
                    triggerRefValue(this);
                }
            });
            this.effect.computed = this;
            this.effect.active = this._cacheable = !isSSR;
            this["__v_isReadonly" /* ReactiveFlags.IS_READONLY */] = isReadonly;
        }
        get value() {
            // the computed ref may get wrapped by other proxies e.g. readonly() #3376
            const self = toRaw(this);
            trackRefValue(self);
            if (self._dirty || !self._cacheable) {
                self._dirty = false;
                self._value = self.effect.run();
            }
            return self._value;
        }
        set value(newValue) {
            this._setter(newValue);
        }
    }
    _a = "__v_isReadonly" /* ReactiveFlags.IS_READONLY */;
    function computed$1(getterOrOptions, debugOptions, isSSR = false) {
        let getter;
        let setter;
        const onlyGetter = isFunction(getterOrOptions);
        if (onlyGetter) {
            getter = getterOrOptions;
            setter = () => {
                    console.warn('Write operation failed: computed value is readonly');
                }
                ;
        }
        else {
            getter = getterOrOptions.get;
            setter = getterOrOptions.set;
        }
        const cRef = new ComputedRefImpl(getter, setter, onlyGetter || !setter, isSSR);
        if (debugOptions && !isSSR) {
            cRef.effect.onTrack = debugOptions.onTrack;
            cRef.effect.onTrigger = debugOptions.onTrigger;
        }
        return cRef;
    }
  
    const stack = [];
    function pushWarningContext(vnode) {
        stack.push(vnode);
    }
    function popWarningContext() {
        stack.pop();
    }
    function warn(msg, ...args) {
        // avoid props formatting or warn handler tracking deps that might be mutated
        // during patch, leading to infinite recursion.
        pauseTracking();
        const instance = stack.length ? stack[stack.length - 1].component : null;
        const appWarnHandler = instance && instance.appContext.config.warnHandler;
        const trace = getComponentTrace();
        if (appWarnHandler) {
            callWithErrorHandling(appWarnHandler, instance, 11 /* ErrorCodes.APP_WARN_HANDLER */, [
                msg + args.join(''),
                instance && instance.proxy,
                trace
                    .map(({ vnode }) => `at <${formatComponentName(instance, vnode.type)}>`)
                    .join('\n'),
                trace
            ]);
        }
        else {
            const warnArgs = [`[Vue warn]: ${msg}`, ...args];
            /* istanbul ignore if */
            if (trace.length &&
                // avoid spamming console during tests
                !false) {
                warnArgs.push(`\n`, ...formatTrace(trace));
            }
            console.warn(...warnArgs);
        }
        resetTracking();
    }
    function getComponentTrace() {
        let currentVNode = stack[stack.length - 1];
        if (!currentVNode) {
            return [];
        }
        // we can't just use the stack because it will be incomplete during updates
        // that did not start from the root. Re-construct the parent chain using
        // instance parent pointers.
        const normalizedStack = [];
        while (currentVNode) {
            const last = normalizedStack[0];
            if (last && last.vnode === currentVNode) {
                last.recurseCount++;
            }
            else {
                normalizedStack.push({
                    vnode: currentVNode,
                    recurseCount: 0
                });
            }
            const parentInstance = currentVNode.component && currentVNode.component.parent;
            currentVNode = parentInstance && parentInstance.vnode;
        }
        return normalizedStack;
    }
    /* istanbul ignore next */
    function formatTrace(trace) {
        const logs = [];
        trace.forEach((entry, i) => {
            logs.push(...(i === 0 ? [] : [`\n`]), ...formatTraceEntry(entry));
        });
        return logs;
    }
    function formatTraceEntry({ vnode, recurseCount }) {
        const postfix = recurseCount > 0 ? `... (${recurseCount} recursive calls)` : ``;
        const isRoot = vnode.component ? vnode.component.parent == null : false;
        const open = ` at <${formatComponentName(vnode.component, vnode.type, isRoot)}`;
        const close = `>` + postfix;
        return vnode.props
            ? [open, ...formatProps(vnode.props), close]
            : [open + close];
    }
    /* istanbul ignore next */
    function formatProps(props) {
        const res = [];
        const keys = Object.keys(props);
        keys.slice(0, 3).forEach(key => {
            res.push(...formatProp(key, props[key]));
        });
        if (keys.length > 3) {
            res.push(` ...`);
        }
        return res;
    }
    /* istanbul ignore next */
    function formatProp(key, value, raw) {
        if (isString(value)) {
            value = JSON.stringify(value);
            return raw ? value : [`${key}=${value}`];
        }
        else if (typeof value === 'number' ||
            typeof value === 'boolean' ||
            value == null) {
            return raw ? value : [`${key}=${value}`];
        }
        else if (isRef(value)) {
            value = formatProp(key, toRaw(value.value), true);
            return raw ? value : [`${key}=Ref<`, value, `>`];
        }
        else if (isFunction(value)) {
            return [`${key}=fn${value.name ? `<${value.name}>` : ``}`];
        }
        else {
            value = toRaw(value);
            return raw ? value : [`${key}=`, value];
        }
    }
    /**
     * @internal
     */
    function assertNumber(val, type) {
        if (val === undefined) {
            return;
        }
        else if (typeof val !== 'number') {
            warn(`${type} is not a valid number - ` + `got ${JSON.stringify(val)}.`);
        }
        else if (isNaN(val)) {
            warn(`${type} is NaN - ` + 'the duration expression might be incorrect.');
        }
    }
  
    const ErrorTypeStrings = {
        ["sp" /* LifecycleHooks.SERVER_PREFETCH */]: 'serverPrefetch hook',
        ["bc" /* LifecycleHooks.BEFORE_CREATE */]: 'beforeCreate hook',
        ["c" /* LifecycleHooks.CREATED */]: 'created hook',
        ["bm" /* LifecycleHooks.BEFORE_MOUNT */]: 'beforeMount hook',
        ["m" /* LifecycleHooks.MOUNTED */]: 'mounted hook',
        ["bu" /* LifecycleHooks.BEFORE_UPDATE */]: 'beforeUpdate hook',
        ["u" /* LifecycleHooks.UPDATED */]: 'updated',
        ["bum" /* LifecycleHooks.BEFORE_UNMOUNT */]: 'beforeUnmount hook',
        ["um" /* LifecycleHooks.UNMOUNTED */]: 'unmounted hook',
        ["a" /* LifecycleHooks.ACTIVATED */]: 'activated hook',
        ["da" /* LifecycleHooks.DEACTIVATED */]: 'deactivated hook',
        ["ec" /* LifecycleHooks.ERROR_CAPTURED */]: 'errorCaptured hook',
        ["rtc" /* LifecycleHooks.RENDER_TRACKED */]: 'renderTracked hook',
        ["rtg" /* LifecycleHooks.RENDER_TRIGGERED */]: 'renderTriggered hook',
        [0 /* ErrorCodes.SETUP_FUNCTION */]: 'setup function',
        [1 /* ErrorCodes.RENDER_FUNCTION */]: 'render function',
        [2 /* ErrorCodes.WATCH_GETTER */]: 'watcher getter',
        [3 /* ErrorCodes.WATCH_CALLBACK */]: 'watcher callback',
        [4 /* ErrorCodes.WATCH_CLEANUP */]: 'watcher cleanup function',
        [5 /* ErrorCodes.NATIVE_EVENT_HANDLER */]: 'native event handler',
        [6 /* ErrorCodes.COMPONENT_EVENT_HANDLER */]: 'component event handler',
        [7 /* ErrorCodes.VNODE_HOOK */]: 'vnode hook',
        [8 /* ErrorCodes.DIRECTIVE_HOOK */]: 'directive hook',
        [9 /* ErrorCodes.TRANSITION_HOOK */]: 'transition hook',
        [10 /* ErrorCodes.APP_ERROR_HANDLER */]: 'app errorHandler',
        [11 /* ErrorCodes.APP_WARN_HANDLER */]: 'app warnHandler',
        [12 /* ErrorCodes.FUNCTION_REF */]: 'ref function',
        [13 /* ErrorCodes.ASYNC_COMPONENT_LOADER */]: 'async component loader',
        [14 /* ErrorCodes.SCHEDULER */]: 'scheduler flush. This is likely a Vue internals bug. ' +
            'Please open an issue at https://new-issue.vuejs.org/?repo=vuejs/core'
    };
    function callWithErrorHandling(fn, instance, type, args) {
        let res;
        try {
            res = args ? fn(...args) : fn();
        }
        catch (err) {
            handleError(err, instance, type);
        }
        return res;
    }
    function callWithAsyncErrorHandling(fn, instance, type, args) {
        if (isFunction(fn)) {
            const res = callWithErrorHandling(fn, instance, type, args);
            if (res && isPromise(res)) {
                res.catch(err => {
                    handleError(err, instance, type);
                });
            }
            return res;
        }
        const values = [];
        for (let i = 0; i < fn.length; i++) {
            values.push(callWithAsyncErrorHandling(fn[i], instance, type, args));
        }
        return values;
    }
    function handleError(err, instance, type, throwInDev = true) {
        const contextVNode = instance ? instance.vnode : null;
        if (instance) {
            let cur = instance.parent;
            // the exposed instance is the render proxy to keep it consistent with 2.x
            const exposedInstance = instance.proxy;
            // in production the hook receives only the error code
            const errorInfo = ErrorTypeStrings[type] ;
            while (cur) {
                const errorCapturedHooks = cur.ec;
                if (errorCapturedHooks) {
                    for (let i = 0; i < errorCapturedHooks.length; i++) {
                        if (errorCapturedHooks[i](err, exposedInstance, errorInfo) === false) {
                            return;
                        }
                    }
                }
                cur = cur.parent;
            }
            // app-level handling
            const appErrorHandler = instance.appContext.config.errorHandler;
            if (appErrorHandler) {
                callWithErrorHandling(appErrorHandler, null, 10 /* ErrorCodes.APP_ERROR_HANDLER */, [err, exposedInstance, errorInfo]);
                return;
            }
        }
        logError(err, type, contextVNode, throwInDev);
    }
    function logError(err, type, contextVNode, throwInDev = true) {
        {
            const info = ErrorTypeStrings[type];
            if (contextVNode) {
                pushWarningContext(contextVNode);
            }
            warn(`Unhandled error${info ? ` during execution of ${info}` : ``}`);
            if (contextVNode) {
                popWarningContext();
            }
            // crash in dev by default so it's more noticeable
            if (throwInDev) {
                throw err;
            }
            else {
                console.error(err);
            }
        }
    }
  
    let isFlushing = false;
    let isFlushPending = false;
    const queue = [];
    let flushIndex = 0;
    const pendingPostFlushCbs = [];
    let activePostFlushCbs = null;
    let postFlushIndex = 0;
    const resolvedPromise = /*#__PURE__*/ Promise.resolve();
    let currentFlushPromise = null;
    const RECURSION_LIMIT = 100;
    function nextTick(fn) {
        const p = currentFlushPromise || resolvedPromise;
        return fn ? p.then(this ? fn.bind(this) : fn) : p;
    }
    // #2768
    // Use binary-search to find a suitable position in the queue,
    // so that the queue maintains the increasing order of job's id,
    // which can prevent the job from being skipped and also can avoid repeated patching.
    function findInsertionIndex(id) {
        // the start index should be `flushIndex + 1`
        let start = flushIndex + 1;
        let end = queue.length;
        while (start < end) {
            const middle = (start + end) >>> 1;
            const middleJobId = getId(queue[middle]);
            middleJobId < id ? (start = middle + 1) : (end = middle);
        }
        return start;
    }
    function queueJob(job) {
        // the dedupe search uses the startIndex argument of Array.includes()
        // by default the search index includes the current job that is being run
        // so it cannot recursively trigger itself again.
        // if the job is a watch() callback, the search will start with a +1 index to
        // allow it recursively trigger itself - it is the user's responsibility to
        // ensure it doesn't end up in an infinite loop.
        if (!queue.length ||
            !queue.includes(job, isFlushing && job.allowRecurse ? flushIndex + 1 : flushIndex)) {
            if (job.id == null) {
                queue.push(job);
            }
            else {
                queue.splice(findInsertionIndex(job.id), 0, job);
            }
            queueFlush();
        }
    }
    function queueFlush() {
        if (!isFlushing && !isFlushPending) {
            isFlushPending = true;
            currentFlushPromise = resolvedPromise.then(flushJobs);
        }
    }
    function invalidateJob(job) {
        const i = queue.indexOf(job);
        if (i > flushIndex) {
            queue.splice(i, 1);
        }
    }
    function queuePostFlushCb(cb) {
        if (!isArray(cb)) {
            if (!activePostFlushCbs ||
                !activePostFlushCbs.includes(cb, cb.allowRecurse ? postFlushIndex + 1 : postFlushIndex)) {
                pendingPostFlushCbs.push(cb);
            }
        }
        else {
            // if cb is an array, it is a component lifecycle hook which can only be
            // triggered by a job, which is already deduped in the main queue, so
            // we can skip duplicate check here to improve perf
            pendingPostFlushCbs.push(...cb);
        }
        queueFlush();
    }
    function flushPreFlushCbs(seen, 
    // if currently flushing, skip the current job itself
    i = isFlushing ? flushIndex + 1 : 0) {
        {
            seen = seen || new Map();
        }
        for (; i < queue.length; i++) {
            const cb = queue[i];
            if (cb && cb.pre) {
                if (checkRecursiveUpdates(seen, cb)) {
                    continue;
                }
                queue.splice(i, 1);
                i--;
                cb();
            }
        }
    }
    function flushPostFlushCbs(seen) {
        if (pendingPostFlushCbs.length) {
            const deduped = [...new Set(pendingPostFlushCbs)];
            pendingPostFlushCbs.length = 0;
            // #1947 already has active queue, nested flushPostFlushCbs call
            if (activePostFlushCbs) {
                activePostFlushCbs.push(...deduped);
                return;
            }
            activePostFlushCbs = deduped;
            {
                seen = seen || new Map();
            }
            activePostFlushCbs.sort((a, b) => getId(a) - getId(b));
            for (postFlushIndex = 0; postFlushIndex < activePostFlushCbs.length; postFlushIndex++) {
                if (checkRecursiveUpdates(seen, activePostFlushCbs[postFlushIndex])) {
                    continue;
                }
                activePostFlushCbs[postFlushIndex]();
            }
            activePostFlushCbs = null;
            postFlushIndex = 0;
        }
    }
    const getId = (job) => job.id == null ? Infinity : job.id;
    const comparator = (a, b) => {
        const diff = getId(a) - getId(b);
        if (diff === 0) {
            if (a.pre && !b.pre)
                return -1;
            if (b.pre && !a.pre)
                return 1;
        }
        return diff;
    };
    function flushJobs(seen) {
        isFlushPending = false;
        isFlushing = true;
        {
            seen = seen || new Map();
        }
        // Sort queue before flush.
        // This ensures that:
        // 1. Components are updated from parent to child. (because parent is always
        //    created before the child so its render effect will have smaller
        //    priority number)
        // 2. If a component is unmounted during a parent component's update,
        //    its update can be skipped.
        queue.sort(comparator);
        // conditional usage of checkRecursiveUpdate must be determined out of
        // try ... catch block since Rollup by default de-optimizes treeshaking
        // inside try-catch. This can leave all warning code unshaked. Although
        // they would get eventually shaken by a minifier like terser, some minifiers
        // would fail to do that (e.g. https://github.com/evanw/esbuild/issues/1610)
        const check = (job) => checkRecursiveUpdates(seen, job)
            ;
        try {
            for (flushIndex = 0; flushIndex < queue.length; flushIndex++) {
                const job = queue[flushIndex];
                if (job && job.active !== false) {
                    if (true && check(job)) {
                        continue;
                    }
                    // console.log(`running:`, job.id)
                    callWithErrorHandling(job, null, 14 /* ErrorCodes.SCHEDULER */);
                }
            }
        }
        finally {
            flushIndex = 0;
            queue.length = 0;
            flushPostFlushCbs(seen);
            isFlushing = false;
            currentFlushPromise = null;
            // some postFlushCb queued jobs!
            // keep flushing until it drains.
            if (queue.length || pendingPostFlushCbs.length) {
                flushJobs(seen);
            }
        }
    }
    function checkRecursiveUpdates(seen, fn) {
        if (!seen.has(fn)) {
            seen.set(fn, 1);
        }
        else {
            const count = seen.get(fn);
            if (count > RECURSION_LIMIT) {
                const instance = fn.ownerInstance;
                const componentName = instance && getComponentName(instance.type);
                warn(`Maximum recursive updates exceeded${componentName ? ` in component <${componentName}>` : ``}. ` +
                    `This means you have a reactive effect that is mutating its own ` +
                    `dependencies and thus recursively triggering itself. Possible sources ` +
                    `include component template, render function, updated hook or ` +
                    `watcher source function.`);
                return true;
            }
            else {
                seen.set(fn, count + 1);
            }
        }
    }
  
    /* eslint-disable no-restricted-globals */
    let isHmrUpdating = false;
    const hmrDirtyComponents = new Set();
    // Expose the HMR runtime on the global object
    // This makes it entirely tree-shakable without polluting the exports and makes
    // it easier to be used in toolings like vue-loader
    // Note: for a component to be eligible for HMR it also needs the __hmrId option
    // to be set so that its instances can be registered / removed.
    {
        getGlobalThis().__VUE_HMR_RUNTIME__ = {
            createRecord: tryWrap(createRecord),
            rerender: tryWrap(rerender),
            reload: tryWrap(reload)
        };
    }
    const map = new Map();
    function registerHMR(instance) {
        const id = instance.type.__hmrId;
        let record = map.get(id);
        if (!record) {
            createRecord(id, instance.type);
            record = map.get(id);
        }
        record.instances.add(instance);
    }
    function unregisterHMR(instance) {
        map.get(instance.type.__hmrId).instances.delete(instance);
    }
    function createRecord(id, initialDef) {
        if (map.has(id)) {
            return false;
        }
        map.set(id, {
            initialDef: normalizeClassComponent(initialDef),
            instances: new Set()
        });
        return true;
    }
    function normalizeClassComponent(component) {
        return isClassComponent(component) ? component.__vccOpts : component;
    }
    function rerender(id, newRender) {
        const record = map.get(id);
        if (!record) {
            return;
        }
        // update initial record (for not-yet-rendered component)
        record.initialDef.render = newRender;
        [...record.instances].forEach(instance => {
            if (newRender) {
                instance.render = newRender;
                normalizeClassComponent(instance.type).render = newRender;
            }
            instance.renderCache = [];
            // this flag forces child components with slot content to update
            isHmrUpdating = true;
            instance.update();
            isHmrUpdating = false;
        });
    }
    function reload(id, newComp) {
        const record = map.get(id);
        if (!record)
            return;
        newComp = normalizeClassComponent(newComp);
        // update initial def (for not-yet-rendered components)
        updateComponentDef(record.initialDef, newComp);
        // create a snapshot which avoids the set being mutated during updates
        const instances = [...record.instances];
        for (const instance of instances) {
            const oldComp = normalizeClassComponent(instance.type);
            if (!hmrDirtyComponents.has(oldComp)) {
                // 1. Update existing comp definition to match new one
                if (oldComp !== record.initialDef) {
                    updateComponentDef(oldComp, newComp);
                }
                // 2. mark definition dirty. This forces the renderer to replace the
                // component on patch.
                hmrDirtyComponents.add(oldComp);
            }
            // 3. invalidate options resolution cache
            instance.appContext.optionsCache.delete(instance.type);
            // 4. actually update
            if (instance.ceReload) {
                // custom element
                hmrDirtyComponents.add(oldComp);
                instance.ceReload(newComp.styles);
                hmrDirtyComponents.delete(oldComp);
            }
            else if (instance.parent) {
                // 4. Force the parent instance to re-render. This will cause all updated
                // components to be unmounted and re-mounted. Queue the update so that we
                // don't end up forcing the same parent to re-render multiple times.
                queueJob(instance.parent.update);
            }
            else if (instance.appContext.reload) {
                // root instance mounted via createApp() has a reload method
                instance.appContext.reload();
            }
            else if (typeof window !== 'undefined') {
                // root instance inside tree created via raw render(). Force reload.
                window.location.reload();
            }
            else {
                console.warn('[HMR] Root or manually mounted instance modified. Full reload required.');
            }
        }
        // 5. make sure to cleanup dirty hmr components after update
        queuePostFlushCb(() => {
            for (const instance of instances) {
                hmrDirtyComponents.delete(normalizeClassComponent(instance.type));
            }
        });
    }
    function updateComponentDef(oldComp, newComp) {
        extend(oldComp, newComp);
        for (const key in oldComp) {
            if (key !== '__file' && !(key in newComp)) {
                delete oldComp[key];
            }
        }
    }
    function tryWrap(fn) {
        return (id, arg) => {
            try {
                return fn(id, arg);
            }
            catch (e) {
                console.error(e);
                console.warn(`[HMR] Something went wrong during Vue component hot-reload. ` +
                    `Full reload required.`);
            }
        };
    }
  
    exports.devtools = void 0;
    let buffer = [];
    let devtoolsNotInstalled = false;
    function emit$1(event, ...args) {
        if (exports.devtools) {
            exports.devtools.emit(event, ...args);
        }
        else if (!devtoolsNotInstalled) {
            buffer.push({ event, args });
        }
    }
    function setDevtoolsHook(hook, target) {
        var _a, _b;
        exports.devtools = hook;
        if (exports.devtools) {
            exports.devtools.enabled = true;
            buffer.forEach(({ event, args }) => exports.devtools.emit(event, ...args));
            buffer = [];
        }
        else if (
        // handle late devtools injection - only do this if we are in an actual
        // browser environment to avoid the timer handle stalling test runner exit
        // (#4815)
        typeof window !== 'undefined' &&
            // some envs mock window but not fully
            window.HTMLElement &&
            // also exclude jsdom
            !((_b = (_a = window.navigator) === null || _a === void 0 ? void 0 : _a.userAgent) === null || _b === void 0 ? void 0 : _b.includes('jsdom'))) {
            const replay = (target.__VUE_DEVTOOLS_HOOK_REPLAY__ =
                target.__VUE_DEVTOOLS_HOOK_REPLAY__ || []);
            replay.push((newHook) => {
                setDevtoolsHook(newHook, target);
            });
            // clear buffer after 3s - the user probably doesn't have devtools installed
            // at all, and keeping the buffer will cause memory leaks (#4738)
            setTimeout(() => {
                if (!exports.devtools) {
                    target.__VUE_DEVTOOLS_HOOK_REPLAY__ = null;
                    devtoolsNotInstalled = true;
                    buffer = [];
                }
            }, 3000);
        }
        else {
            // non-browser env, assume not installed
            devtoolsNotInstalled = true;
            buffer = [];
        }
    }
    function devtoolsInitApp(app, version) {
        emit$1("app:init" /* DevtoolsHooks.APP_INIT */, app, version, {
            Fragment,
            Text,
            Comment,
            Static
        });
    }
    function devtoolsUnmountApp(app) {
        emit$1("app:unmount" /* DevtoolsHooks.APP_UNMOUNT */, app);
    }
    const devtoolsComponentAdded = /*#__PURE__*/ createDevtoolsComponentHook("component:added" /* DevtoolsHooks.COMPONENT_ADDED */);
    const devtoolsComponentUpdated = 
    /*#__PURE__*/ createDevtoolsComponentHook("component:updated" /* DevtoolsHooks.COMPONENT_UPDATED */);
    const _devtoolsComponentRemoved = /*#__PURE__*/ createDevtoolsComponentHook("component:removed" /* DevtoolsHooks.COMPONENT_REMOVED */);
    const devtoolsComponentRemoved = (component) => {
        if (exports.devtools &&
            typeof exports.devtools.cleanupBuffer === 'function' &&
            // remove the component if it wasn't buffered
            !exports.devtools.cleanupBuffer(component)) {
            _devtoolsComponentRemoved(component);
        }
    };
    function createDevtoolsComponentHook(hook) {
        return (component) => {
            emit$1(hook, component.appContext.app, component.uid, component.parent ? component.parent.uid : undefined, component);
        };
    }
    const devtoolsPerfStart = /*#__PURE__*/ createDevtoolsPerformanceHook("perf:start" /* DevtoolsHooks.PERFORMANCE_START */);
    const devtoolsPerfEnd = /*#__PURE__*/ createDevtoolsPerformanceHook("perf:end" /* DevtoolsHooks.PERFORMANCE_END */);
    function createDevtoolsPerformanceHook(hook) {
        return (component, type, time) => {
            emit$1(hook, component.appContext.app, component.uid, component, type, time);
        };
    }
    function devtoolsComponentEmit(component, event, params) {
        emit$1("component:emit" /* DevtoolsHooks.COMPONENT_EMIT */, component.appContext.app, component, event, params);
    }
  
    function emit(instance, event, ...rawArgs) {
        if (instance.isUnmounted)
            return;
        const props = instance.vnode.props || EMPTY_OBJ;
        {
            const { emitsOptions, propsOptions: [propsOptions] } = instance;
            if (emitsOptions) {
                if (!(event in emitsOptions) &&
                    !(false )) {
                    if (!propsOptions || !(toHandlerKey(event) in propsOptions)) {
                        warn(`Component emitted event "${event}" but it is neither declared in ` +
                            `the emits option nor as an "${toHandlerKey(event)}" prop.`);
                    }
                }
                else {
                    const validator = emitsOptions[event];
                    if (isFunction(validator)) {
                        const isValid = validator(...rawArgs);
                        if (!isValid) {
                            warn(`Invalid event arguments: event validation failed for event "${event}".`);
                        }
                    }
                }
            }
        }
        let args = rawArgs;
        const isModelListener = event.startsWith('update:');
        // for v-model update:xxx events, apply modifiers on args
        const modelArg = isModelListener && event.slice(7);
        if (modelArg && modelArg in props) {
            const modifiersKey = `${modelArg === 'modelValue' ? 'model' : modelArg}Modifiers`;
            const { number, trim } = props[modifiersKey] || EMPTY_OBJ;
            if (trim) {
                args = rawArgs.map(a => (isString(a) ? a.trim() : a));
            }
            if (number) {
                args = rawArgs.map(looseToNumber);
            }
        }
        {
            devtoolsComponentEmit(instance, event, args);
        }
        {
            const lowerCaseEvent = event.toLowerCase();
            if (lowerCaseEvent !== event && props[toHandlerKey(lowerCaseEvent)]) {
                warn(`Event "${lowerCaseEvent}" is emitted in component ` +
                    `${formatComponentName(instance, instance.type)} but the handler is registered for "${event}". ` +
                    `Note that HTML attributes are case-insensitive and you cannot use ` +
                    `v-on to listen to camelCase events when using in-DOM templates. ` +
                    `You should probably use "${hyphenate(event)}" instead of "${event}".`);
            }
        }
        let handlerName;
        let handler = props[(handlerName = toHandlerKey(event))] ||
            // also try camelCase event handler (#2249)
            props[(handlerName = toHandlerKey(camelize(event)))];
        // for v-model update:xxx events, also trigger kebab-case equivalent
        // for props passed via kebab-case
        if (!handler && isModelListener) {
            handler = props[(handlerName = toHandlerKey(hyphenate(event)))];
        }
        if (handler) {
            callWithAsyncErrorHandling(handler, instance, 6 /* ErrorCodes.COMPONENT_EVENT_HANDLER */, args);
        }
        const onceHandler = props[handlerName + `Once`];
        if (onceHandler) {
            if (!instance.emitted) {
                instance.emitted = {};
            }
            else if (instance.emitted[handlerName]) {
                return;
            }
            instance.emitted[handlerName] = true;
            callWithAsyncErrorHandling(onceHandler, instance, 6 /* ErrorCodes.COMPONENT_EVENT_HANDLER */, args);
        }
    }
    function normalizeEmitsOptions(comp, appContext, asMixin = false) {
        const cache = appContext.emitsCache;
        const cached = cache.get(comp);
        if (cached !== undefined) {
            return cached;
        }
        const raw = comp.emits;
        let normalized = {};
        // apply mixin/extends props
        let hasExtends = false;
        if (!isFunction(comp)) {
            const extendEmits = (raw) => {
                const normalizedFromExtend = normalizeEmitsOptions(raw, appContext, true);
                if (normalizedFromExtend) {
                    hasExtends = true;
                    extend(normalized, normalizedFromExtend);
                }
            };
            if (!asMixin && appContext.mixins.length) {
                appContext.mixins.forEach(extendEmits);
            }
            if (comp.extends) {
                extendEmits(comp.extends);
            }
            if (comp.mixins) {
                comp.mixins.forEach(extendEmits);
            }
        }
        if (!raw && !hasExtends) {
            if (isObject(comp)) {
                cache.set(comp, null);
            }
            return null;
        }
        if (isArray(raw)) {
            raw.forEach(key => (normalized[key] = null));
        }
        else {
            extend(normalized, raw);
        }
        if (isObject(comp)) {
            cache.set(comp, normalized);
        }
        return normalized;
    }
    // Check if an incoming prop key is a declared emit event listener.
    // e.g. With `emits: { click: null }`, props named `onClick` and `onclick` are
    // both considered matched listeners.
    function isEmitListener(options, key) {
        if (!options || !isOn(key)) {
            return false;
        }
        key = key.slice(2).replace(/Once$/, '');
        return (hasOwn(options, key[0].toLowerCase() + key.slice(1)) ||
            hasOwn(options, hyphenate(key)) ||
            hasOwn(options, key));
    }
  
    /**
     * mark the current rendering instance for asset resolution (e.g.
     * resolveComponent, resolveDirective) during render
     */
    let currentRenderingInstance = null;
    let currentScopeId = null;
    /**
     * Note: rendering calls maybe nested. The function returns the parent rendering
     * instance if present, which should be restored after the render is done:
     *
     * ```js
     * const prev = setCurrentRenderingInstance(i)
     * // ...render
     * setCurrentRenderingInstance(prev)
     * ```
     */
    function setCurrentRenderingInstance(instance) {
        const prev = currentRenderingInstance;
        currentRenderingInstance = instance;
        currentScopeId = (instance && instance.type.__scopeId) || null;
        return prev;
    }
    /**
     * Set scope id when creating hoisted vnodes.
     * @private compiler helper
     */
    function pushScopeId(id) {
        currentScopeId = id;
    }
    /**
     * Technically we no longer need this after 3.0.8 but we need to keep the same
     * API for backwards compat w/ code generated by compilers.
     * @private
     */
    function popScopeId() {
        currentScopeId = null;
    }
    /**
     * Only for backwards compat
     * @private
     */
    const withScopeId = (_id) => withCtx;
    /**
     * Wrap a slot function to memoize current rendering instance
     * @private compiler helper
     */
    function withCtx(fn, ctx = currentRenderingInstance, isNonScopedSlot // false only
    ) {
        if (!ctx)
            return fn;
        // already normalized
        if (fn._n) {
            return fn;
        }
        const renderFnWithContext = (...args) => {
            // If a user calls a compiled slot inside a template expression (#1745), it
            // can mess up block tracking, so by default we disable block tracking and
            // force bail out when invoking a compiled slot (indicated by the ._d flag).
            // This isn't necessary if rendering a compiled `<slot>`, so we flip the
            // ._d flag off when invoking the wrapped fn inside `renderSlot`.
            if (renderFnWithContext._d) {
                setBlockTracking(-1);
            }
            const prevInstance = setCurrentRenderingInstance(ctx);
            let res;
            try {
                res = fn(...args);
            }
            finally {
                setCurrentRenderingInstance(prevInstance);
                if (renderFnWithContext._d) {
                    setBlockTracking(1);
                }
            }
            {
                devtoolsComponentUpdated(ctx);
            }
            return res;
        };
        // mark normalized to avoid duplicated wrapping
        renderFnWithContext._n = true;
        // mark this as compiled by default
        // this is used in vnode.ts -> normalizeChildren() to set the slot
        // rendering flag.
        renderFnWithContext._c = true;
        // disable block tracking by default
        renderFnWithContext._d = true;
        return renderFnWithContext;
    }
  
    /**
     * dev only flag to track whether $attrs was used during render.
     * If $attrs was used during render then the warning for failed attrs
     * fallthrough can be suppressed.
     */
    let accessedAttrs = false;
    function markAttrsAccessed() {
        accessedAttrs = true;
    }
    function renderComponentRoot(instance) {
        const { type: Component, vnode, proxy, withProxy, props, propsOptions: [propsOptions], slots, attrs, emit, render, renderCache, data, setupState, ctx, inheritAttrs } = instance;
        let result;
        let fallthroughAttrs;
        const prev = setCurrentRenderingInstance(instance);
        {
            accessedAttrs = false;
        }
        try {
            if (vnode.shapeFlag & 4 /* ShapeFlags.STATEFUL_COMPONENT */) {
                // withProxy is a proxy with a different `has` trap only for
                // runtime-compiled render functions using `with` block.
                const proxyToUse = withProxy || proxy;
                result = normalizeVNode(render.call(proxyToUse, proxyToUse, renderCache, props, setupState, data, ctx));
                fallthroughAttrs = attrs;
            }
            else {
                // functional
                const render = Component;
                // in dev, mark attrs accessed if optional props (attrs === props)
                if (true && attrs === props) {
                    markAttrsAccessed();
                }
                result = normalizeVNode(render.length > 1
                    ? render(props, true
                        ? {
                            get attrs() {
                                markAttrsAccessed();
                                return attrs;
                            },
                            slots,
                            emit
                        }
                        : { attrs, slots, emit })
                    : render(props, null /* we know it doesn't need it */));
                fallthroughAttrs = Component.props
                    ? attrs
                    : getFunctionalFallthrough(attrs);
            }
        }
        catch (err) {
            blockStack.length = 0;
            handleError(err, instance, 1 /* ErrorCodes.RENDER_FUNCTION */);
            result = createVNode(Comment);
        }
        // attr merging
        // in dev mode, comments are preserved, and it's possible for a template
        // to have comments along side the root element which makes it a fragment
        let root = result;
        let setRoot = undefined;
        if (result.patchFlag > 0 &&
            result.patchFlag & 2048 /* PatchFlags.DEV_ROOT_FRAGMENT */) {
            [root, setRoot] = getChildRoot(result);
        }
        if (fallthroughAttrs && inheritAttrs !== false) {
            const keys = Object.keys(fallthroughAttrs);
            const { shapeFlag } = root;
            if (keys.length) {
                if (shapeFlag & (1 /* ShapeFlags.ELEMENT */ | 6 /* ShapeFlags.COMPONENT */)) {
                    if (propsOptions && keys.some(isModelListener)) {
                        // If a v-model listener (onUpdate:xxx) has a corresponding declared
                        // prop, it indicates this component expects to handle v-model and
                        // it should not fallthrough.
                        // related: #1543, #1643, #1989
                        fallthroughAttrs = filterModelListeners(fallthroughAttrs, propsOptions);
                    }
                    root = cloneVNode(root, fallthroughAttrs);
                }
                else if (!accessedAttrs && root.type !== Comment) {
                    const allAttrs = Object.keys(attrs);
                    const eventAttrs = [];
                    const extraAttrs = [];
                    for (let i = 0, l = allAttrs.length; i < l; i++) {
                        const key = allAttrs[i];
                        if (isOn(key)) {
                            // ignore v-model handlers when they fail to fallthrough
                            if (!isModelListener(key)) {
                                // remove `on`, lowercase first letter to reflect event casing
                                // accurately
                                eventAttrs.push(key[2].toLowerCase() + key.slice(3));
                            }
                        }
                        else {
                            extraAttrs.push(key);
                        }
                    }
                    if (extraAttrs.length) {
                        warn(`Extraneous non-props attributes (` +
                            `${extraAttrs.join(', ')}) ` +
                            `were passed to component but could not be automatically inherited ` +
                            `because component renders fragment or text root nodes.`);
                    }
                    if (eventAttrs.length) {
                        warn(`Extraneous non-emits event listeners (` +
                            `${eventAttrs.join(', ')}) ` +
                            `were passed to component but could not be automatically inherited ` +
                            `because component renders fragment or text root nodes. ` +
                            `If the listener is intended to be a component custom event listener only, ` +
                            `declare it using the "emits" option.`);
                    }
                }
            }
        }
        // inherit directives
        if (vnode.dirs) {
            if (!isElementRoot(root)) {
                warn(`Runtime directive used on component with non-element root node. ` +
                    `The directives will not function as intended.`);
            }
            // clone before mutating since the root may be a hoisted vnode
            root = cloneVNode(root);
            root.dirs = root.dirs ? root.dirs.concat(vnode.dirs) : vnode.dirs;
        }
        // inherit transition data
        if (vnode.transition) {
            if (!isElementRoot(root)) {
                warn(`Component inside <Transition> renders non-element root node ` +
                    `that cannot be animated.`);
            }
            root.transition = vnode.transition;
        }
        if (setRoot) {
            setRoot(root);
        }
        else {
            result = root;
        }
        setCurrentRenderingInstance(prev);
        return result;
    }
    /**
     * dev only
     * In dev mode, template root level comments are rendered, which turns the
     * template into a fragment root, but we need to locate the single element
     * root for attrs and scope id processing.
     */
    const getChildRoot = (vnode) => {
        const rawChildren = vnode.children;
        const dynamicChildren = vnode.dynamicChildren;
        const childRoot = filterSingleRoot(rawChildren);
        if (!childRoot) {
            return [vnode, undefined];
        }
        const index = rawChildren.indexOf(childRoot);
        const dynamicIndex = dynamicChildren ? dynamicChildren.indexOf(childRoot) : -1;
        const setRoot = (updatedRoot) => {
            rawChildren[index] = updatedRoot;
            if (dynamicChildren) {
                if (dynamicIndex > -1) {
                    dynamicChildren[dynamicIndex] = updatedRoot;
                }
                else if (updatedRoot.patchFlag > 0) {
                    vnode.dynamicChildren = [...dynamicChildren, updatedRoot];
                }
            }
        };
        return [normalizeVNode(childRoot), setRoot];
    };
    function filterSingleRoot(children) {
        let singleRoot;
        for (let i = 0; i < children.length; i++) {
            const child = children[i];
            if (isVNode(child)) {
                // ignore user comment
                if (child.type !== Comment || child.children === 'v-if') {
                    if (singleRoot) {
                        // has more than 1 non-comment child, return now
                        return;
                    }
                    else {
                        singleRoot = child;
                    }
                }
            }
            else {
                return;
            }
        }
        return singleRoot;
    }
    const getFunctionalFallthrough = (attrs) => {
        let res;
        for (const key in attrs) {
            if (key === 'class' || key === 'style' || isOn(key)) {
                (res || (res = {}))[key] = attrs[key];
            }
        }
        return res;
    };
    const filterModelListeners = (attrs, props) => {
        const res = {};
        for (const key in attrs) {
            if (!isModelListener(key) || !(key.slice(9) in props)) {
                res[key] = attrs[key];
            }
        }
        return res;
    };
    const isElementRoot = (vnode) => {
        return (vnode.shapeFlag & (6 /* ShapeFlags.COMPONENT */ | 1 /* ShapeFlags.ELEMENT */) ||
            vnode.type === Comment // potential v-if branch switch
        );
    };
    function shouldUpdateComponent(prevVNode, nextVNode, optimized) {
        const { props: prevProps, children: prevChildren, component } = prevVNode;
        const { props: nextProps, children: nextChildren, patchFlag } = nextVNode;
        const emits = component.emitsOptions;
        // Parent component's render function was hot-updated. Since this may have
        // caused the child component's slots content to have changed, we need to
        // force the child to update as well.
        if ((prevChildren || nextChildren) && isHmrUpdating) {
            return true;
        }
        // force child update for runtime directive or transition on component vnode.
        if (nextVNode.dirs || nextVNode.transition) {
            return true;
        }
        if (optimized && patchFlag >= 0) {
            if (patchFlag & 1024 /* PatchFlags.DYNAMIC_SLOTS */) {
                // slot content that references values that might have changed,
                // e.g. in a v-for
                return true;
            }
            if (patchFlag & 16 /* PatchFlags.FULL_PROPS */) {
                if (!prevProps) {
                    return !!nextProps;
                }
                // presence of this flag indicates props are always non-null
                return hasPropsChanged(prevProps, nextProps, emits);
            }
            else if (patchFlag & 8 /* PatchFlags.PROPS */) {
                const dynamicProps = nextVNode.dynamicProps;
                for (let i = 0; i < dynamicProps.length; i++) {
                    const key = dynamicProps[i];
                    if (nextProps[key] !== prevProps[key] &&
                        !isEmitListener(emits, key)) {
                        return true;
                    }
                }
            }
        }
        else {
            // this path is only taken by manually written render functions
            // so presence of any children leads to a forced update
            if (prevChildren || nextChildren) {
                if (!nextChildren || !nextChildren.$stable) {
                    return true;
                }
            }
            if (prevProps === nextProps) {
                return false;
            }
            if (!prevProps) {
                return !!nextProps;
            }
            if (!nextProps) {
                return true;
            }
            return hasPropsChanged(prevProps, nextProps, emits);
        }
        return false;
    }
    function hasPropsChanged(prevProps, nextProps, emitsOptions) {
        const nextKeys = Object.keys(nextProps);
        if (nextKeys.length !== Object.keys(prevProps).length) {
            return true;
        }
        for (let i = 0; i < nextKeys.length; i++) {
            const key = nextKeys[i];
            if (nextProps[key] !== prevProps[key] &&
                !isEmitListener(emitsOptions, key)) {
                return true;
            }
        }
        return false;
    }
    function updateHOCHostEl({ vnode, parent }, el // HostNode
    ) {
        while (parent && parent.subTree === vnode) {
            (vnode = parent.vnode).el = el;
            parent = parent.parent;
        }
    }
  
    const isSuspense = (type) => type.__isSuspense;
    // Suspense exposes a component-like API, and is treated like a component
    // in the compiler, but internally it's a special built-in type that hooks
    // directly into the renderer.
    const SuspenseImpl = {
        name: 'Suspense',
        // In order to make Suspense tree-shakable, we need to avoid importing it
        // directly in the renderer. The renderer checks for the __isSuspense flag
        // on a vnode's type and calls the `process` method, passing in renderer
        // internals.
        __isSuspense: true,
        process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, 
        // platform-specific impl passed from renderer
        rendererInternals) {
            if (n1 == null) {
                mountSuspense(n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, rendererInternals);
            }
            else {
                patchSuspense(n1, n2, container, anchor, parentComponent, isSVG, slotScopeIds, optimized, rendererInternals);
            }
        },
        hydrate: hydrateSuspense,
        create: createSuspenseBoundary,
        normalize: normalizeSuspenseChildren
    };
    // Force-casted public typing for h and TSX props inference
    const Suspense = (SuspenseImpl
        );
    function triggerEvent(vnode, name) {
        const eventListener = vnode.props && vnode.props[name];
        if (isFunction(eventListener)) {
            eventListener();
        }
    }
    function mountSuspense(vnode, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, rendererInternals) {
        const { p: patch, o: { createElement } } = rendererInternals;
        const hiddenContainer = createElement('div');
        const suspense = (vnode.suspense = createSuspenseBoundary(vnode, parentSuspense, parentComponent, container, hiddenContainer, anchor, isSVG, slotScopeIds, optimized, rendererInternals));
        // start mounting the content subtree in an off-dom container
        patch(null, (suspense.pendingBranch = vnode.ssContent), hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds);
        // now check if we have encountered any async deps
        if (suspense.deps > 0) {
            // has async
            // invoke @fallback event
            triggerEvent(vnode, 'onPending');
            triggerEvent(vnode, 'onFallback');
            // mount the fallback tree
            patch(null, vnode.ssFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context
            isSVG, slotScopeIds);
            setActiveBranch(suspense, vnode.ssFallback);
        }
        else {
            // Suspense has no async deps. Just resolve.
            suspense.resolve();
        }
    }
    function patchSuspense(n1, n2, container, anchor, parentComponent, isSVG, slotScopeIds, optimized, { p: patch, um: unmount, o: { createElement } }) {
        const suspense = (n2.suspense = n1.suspense);
        suspense.vnode = n2;
        n2.el = n1.el;
        const newBranch = n2.ssContent;
        const newFallback = n2.ssFallback;
        const { activeBranch, pendingBranch, isInFallback, isHydrating } = suspense;
        if (pendingBranch) {
            suspense.pendingBranch = newBranch;
            if (isSameVNodeType(newBranch, pendingBranch)) {
                // same root type but content may have changed.
                patch(pendingBranch, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds, optimized);
                if (suspense.deps <= 0) {
                    suspense.resolve();
                }
                else if (isInFallback) {
                    patch(activeBranch, newFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context
                    isSVG, slotScopeIds, optimized);
                    setActiveBranch(suspense, newFallback);
                }
            }
            else {
                // toggled before pending tree is resolved
                suspense.pendingId++;
                if (isHydrating) {
                    // if toggled before hydration is finished, the current DOM tree is
                    // no longer valid. set it as the active branch so it will be unmounted
                    // when resolved
                    suspense.isHydrating = false;
                    suspense.activeBranch = pendingBranch;
                }
                else {
                    unmount(pendingBranch, parentComponent, suspense);
                }
                // increment pending ID. this is used to invalidate async callbacks
                // reset suspense state
                suspense.deps = 0;
                // discard effects from pending branch
                suspense.effects.length = 0;
                // discard previous container
                suspense.hiddenContainer = createElement('div');
                if (isInFallback) {
                    // already in fallback state
                    patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds, optimized);
                    if (suspense.deps <= 0) {
                        suspense.resolve();
                    }
                    else {
                        patch(activeBranch, newFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context
                        isSVG, slotScopeIds, optimized);
                        setActiveBranch(suspense, newFallback);
                    }
                }
                else if (activeBranch && isSameVNodeType(newBranch, activeBranch)) {
                    // toggled "back" to current active branch
                    patch(activeBranch, newBranch, container, anchor, parentComponent, suspense, isSVG, slotScopeIds, optimized);
                    // force resolve
                    suspense.resolve(true);
                }
                else {
                    // switched to a 3rd branch
                    patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds, optimized);
                    if (suspense.deps <= 0) {
                        suspense.resolve();
                    }
                }
            }
        }
        else {
            if (activeBranch && isSameVNodeType(newBranch, activeBranch)) {
                // root did not change, just normal patch
                patch(activeBranch, newBranch, container, anchor, parentComponent, suspense, isSVG, slotScopeIds, optimized);
                setActiveBranch(suspense, newBranch);
            }
            else {
                // root node toggled
                // invoke @pending event
                triggerEvent(n2, 'onPending');
                // mount pending branch in off-dom container
                suspense.pendingBranch = newBranch;
                suspense.pendingId++;
                patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds, optimized);
                if (suspense.deps <= 0) {
                    // incoming branch has no async deps, resolve now.
                    suspense.resolve();
                }
                else {
                    const { timeout, pendingId } = suspense;
                    if (timeout > 0) {
                        setTimeout(() => {
                            if (suspense.pendingId === pendingId) {
                                suspense.fallback(newFallback);
                            }
                        }, timeout);
                    }
                    else if (timeout === 0) {
                        suspense.fallback(newFallback);
                    }
                }
            }
        }
    }
    let hasWarned = false;
    function createSuspenseBoundary(vnode, parent, parentComponent, container, hiddenContainer, anchor, isSVG, slotScopeIds, optimized, rendererInternals, isHydrating = false) {
        /* istanbul ignore if */
        if (!hasWarned) {
            hasWarned = true;
            // @ts-ignore `console.info` cannot be null error
            console[console.info ? 'info' : 'log'](`<Suspense> is an experimental feature and its API will likely change.`);
        }
        const { p: patch, m: move, um: unmount, n: next, o: { parentNode, remove } } = rendererInternals;
        const timeout = vnode.props ? toNumber(vnode.props.timeout) : undefined;
        {
            assertNumber(timeout, `Suspense timeout`);
        }
        const suspense = {
            vnode,
            parent,
            parentComponent,
            isSVG,
            container,
            hiddenContainer,
            anchor,
            deps: 0,
            pendingId: 0,
            timeout: typeof timeout === 'number' ? timeout : -1,
            activeBranch: null,
            pendingBranch: null,
            isInFallback: true,
            isHydrating,
            isUnmounted: false,
            effects: [],
            resolve(resume = false) {
                {
                    if (!resume && !suspense.pendingBranch) {
                        throw new Error(`suspense.resolve() is called without a pending branch.`);
                    }
                    if (suspense.isUnmounted) {
                        throw new Error(`suspense.resolve() is called on an already unmounted suspense boundary.`);
                    }
                }
                const { vnode, activeBranch, pendingBranch, pendingId, effects, parentComponent, container } = suspense;
                if (suspense.isHydrating) {
                    suspense.isHydrating = false;
                }
                else if (!resume) {
                    const delayEnter = activeBranch &&
                        pendingBranch.transition &&
                        pendingBranch.transition.mode === 'out-in';
                    if (delayEnter) {
                        activeBranch.transition.afterLeave = () => {
                            if (pendingId === suspense.pendingId) {
                                move(pendingBranch, container, anchor, 0 /* MoveType.ENTER */);
                            }
                        };
                    }
                    // this is initial anchor on mount
                    let { anchor } = suspense;
                    // unmount current active tree
                    if (activeBranch) {
                        // if the fallback tree was mounted, it may have been moved
                        // as part of a parent suspense. get the latest anchor for insertion
                        anchor = next(activeBranch);
                        unmount(activeBranch, parentComponent, suspense, true);
                    }
                    if (!delayEnter) {
                        // move content from off-dom container to actual container
                        move(pendingBranch, container, anchor, 0 /* MoveType.ENTER */);
                    }
                }
                setActiveBranch(suspense, pendingBranch);
                suspense.pendingBranch = null;
                suspense.isInFallback = false;
                // flush buffered effects
                // check if there is a pending parent suspense
                let parent = suspense.parent;
                let hasUnresolvedAncestor = false;
                while (parent) {
                    if (parent.pendingBranch) {
                        // found a pending parent suspense, merge buffered post jobs
                        // into that parent
                        parent.effects.push(...effects);
                        hasUnresolvedAncestor = true;
                        break;
                    }
                    parent = parent.parent;
                }
                // no pending parent suspense, flush all jobs
                if (!hasUnresolvedAncestor) {
                    queuePostFlushCb(effects);
                }
                suspense.effects = [];
                // invoke @resolve event
                triggerEvent(vnode, 'onResolve');
            },
            fallback(fallbackVNode) {
                if (!suspense.pendingBranch) {
                    return;
                }
                const { vnode, activeBranch, parentComponent, container, isSVG } = suspense;
                // invoke @fallback event
                triggerEvent(vnode, 'onFallback');
                const anchor = next(activeBranch);
                const mountFallback = () => {
                    if (!suspense.isInFallback) {
                        return;
                    }
                    // mount the fallback tree
                    patch(null, fallbackVNode, container, anchor, parentComponent, null, // fallback tree will not have suspense context
                    isSVG, slotScopeIds, optimized);
                    setActiveBranch(suspense, fallbackVNode);
                };
                const delayEnter = fallbackVNode.transition && fallbackVNode.transition.mode === 'out-in';
                if (delayEnter) {
                    activeBranch.transition.afterLeave = mountFallback;
                }
                suspense.isInFallback = true;
                // unmount current active branch
                unmount(activeBranch, parentComponent, null, // no suspense so unmount hooks fire now
                true // shouldRemove
                );
                if (!delayEnter) {
                    mountFallback();
                }
            },
            move(container, anchor, type) {
                suspense.activeBranch &&
                    move(suspense.activeBranch, container, anchor, type);
                suspense.container = container;
            },
            next() {
                return suspense.activeBranch && next(suspense.activeBranch);
            },
            registerDep(instance, setupRenderEffect) {
                const isInPendingSuspense = !!suspense.pendingBranch;
                if (isInPendingSuspense) {
                    suspense.deps++;
                }
                const hydratedEl = instance.vnode.el;
                instance
                    .asyncDep.catch(err => {
                    handleError(err, instance, 0 /* ErrorCodes.SETUP_FUNCTION */);
                })
                    .then(asyncSetupResult => {
                    // retry when the setup() promise resolves.
                    // component may have been unmounted before resolve.
                    if (instance.isUnmounted ||
                        suspense.isUnmounted ||
                        suspense.pendingId !== instance.suspenseId) {
                        return;
                    }
                    // retry from this component
                    instance.asyncResolved = true;
                    const { vnode } = instance;
                    {
                        pushWarningContext(vnode);
                    }
                    handleSetupResult(instance, asyncSetupResult, false);
                    if (hydratedEl) {
                        // vnode may have been replaced if an update happened before the
                        // async dep is resolved.
                        vnode.el = hydratedEl;
                    }
                    const placeholder = !hydratedEl && instance.subTree.el;
                    setupRenderEffect(instance, vnode, 
                    // component may have been moved before resolve.
                    // if this is not a hydration, instance.subTree will be the comment
                    // placeholder.
                    parentNode(hydratedEl || instance.subTree.el), 
                    // anchor will not be used if this is hydration, so only need to
                    // consider the comment placeholder case.
                    hydratedEl ? null : next(instance.subTree), suspense, isSVG, optimized);
                    if (placeholder) {
                        remove(placeholder);
                    }
                    updateHOCHostEl(instance, vnode.el);
                    {
                        popWarningContext();
                    }
                    // only decrease deps count if suspense is not already resolved
                    if (isInPendingSuspense && --suspense.deps === 0) {
                        suspense.resolve();
                    }
                });
            },
            unmount(parentSuspense, doRemove) {
                suspense.isUnmounted = true;
                if (suspense.activeBranch) {
                    unmount(suspense.activeBranch, parentComponent, parentSuspense, doRemove);
                }
                if (suspense.pendingBranch) {
                    unmount(suspense.pendingBranch, parentComponent, parentSuspense, doRemove);
                }
            }
        };
        return suspense;
    }
    function hydrateSuspense(node, vnode, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, rendererInternals, hydrateNode) {
        /* eslint-disable no-restricted-globals */
        const suspense = (vnode.suspense = createSuspenseBoundary(vnode, parentSuspense, parentComponent, node.parentNode, document.createElement('div'), null, isSVG, slotScopeIds, optimized, rendererInternals, true /* hydrating */));
        // there are two possible scenarios for server-rendered suspense:
        // - success: ssr content should be fully resolved
        // - failure: ssr content should be the fallback branch.
        // however, on the client we don't really know if it has failed or not
        // attempt to hydrate the DOM assuming it has succeeded, but we still
        // need to construct a suspense boundary first
        const result = hydrateNode(node, (suspense.pendingBranch = vnode.ssContent), parentComponent, suspense, slotScopeIds, optimized);
        if (suspense.deps === 0) {
            suspense.resolve();
        }
        return result;
        /* eslint-enable no-restricted-globals */
    }
    function normalizeSuspenseChildren(vnode) {
        const { shapeFlag, children } = vnode;
        const isSlotChildren = shapeFlag & 32 /* ShapeFlags.SLOTS_CHILDREN */;
        vnode.ssContent = normalizeSuspenseSlot(isSlotChildren ? children.default : children);
        vnode.ssFallback = isSlotChildren
            ? normalizeSuspenseSlot(children.fallback)
            : createVNode(Comment);
    }
    function normalizeSuspenseSlot(s) {
        let block;
        if (isFunction(s)) {
            const trackBlock = isBlockTreeEnabled && s._c;
            if (trackBlock) {
                // disableTracking: false
                // allow block tracking for compiled slots
                // (see ./componentRenderContext.ts)
                s._d = false;
                openBlock();
            }
            s = s();
            if (trackBlock) {
                s._d = true;
                block = currentBlock;
                closeBlock();
            }
        }
        if (isArray(s)) {
            const singleChild = filterSingleRoot(s);
            if (!singleChild) {
                warn(`<Suspense> slots expect a single root node.`);
            }
            s = singleChild;
        }
        s = normalizeVNode(s);
        if (block && !s.dynamicChildren) {
            s.dynamicChildren = block.filter(c => c !== s);
        }
        return s;
    }
    function queueEffectWithSuspense(fn, suspense) {
        if (suspense && suspense.pendingBranch) {
            if (isArray(fn)) {
                suspense.effects.push(...fn);
            }
            else {
                suspense.effects.push(fn);
            }
        }
        else {
            queuePostFlushCb(fn);
        }
    }
    function setActiveBranch(suspense, branch) {
        suspense.activeBranch = branch;
        const { vnode, parentComponent } = suspense;
        const el = (vnode.el = branch.el);
        // in case suspense is the root node of a component,
        // recursively update the HOC el
        if (parentComponent && parentComponent.subTree === vnode) {
            parentComponent.vnode.el = el;
            updateHOCHostEl(parentComponent, el);
        }
    }
  
    function provide(key, value) {
        if (!currentInstance) {
            {
                warn(`provide() can only be used inside setup().`);
            }
        }
        else {
            let provides = currentInstance.provides;
            // by default an instance inherits its parent's provides object
            // but when it needs to provide values of its own, it creates its
            // own provides object using parent provides object as prototype.
            // this way in `inject` we can simply look up injections from direct
            // parent and let the prototype chain do the work.
            const parentProvides = currentInstance.parent && currentInstance.parent.provides;
            if (parentProvides === provides) {
                provides = currentInstance.provides = Object.create(parentProvides);
            }
            // TS doesn't allow symbol as index type
            provides[key] = value;
        }
    }
    function inject(key, defaultValue, treatDefaultAsFactory = false) {
        // fallback to `currentRenderingInstance` so that this can be called in
        // a functional component
        const instance = currentInstance || currentRenderingInstance;
        if (instance) {
            // #2400
            // to support `app.use` plugins,
            // fallback to appContext's `provides` if the instance is at root
            const provides = instance.parent == null
                ? instance.vnode.appContext && instance.vnode.appContext.provides
                : instance.parent.provides;
            if (provides && key in provides) {
                // TS doesn't allow symbol as index type
                return provides[key];
            }
            else if (arguments.length > 1) {
                return treatDefaultAsFactory && isFunction(defaultValue)
                    ? defaultValue.call(instance.proxy)
                    : defaultValue;
            }
            else {
                warn(`injection "${String(key)}" not found.`);
            }
        }
        else {
            warn(`inject() can only be used inside setup() or functional components.`);
        }
    }
  
    // Simple effect.
    function watchEffect(effect, options) {
        return doWatch(effect, null, options);
    }
    function watchPostEffect(effect, options) {
        return doWatch(effect, null, Object.assign(Object.assign({}, options), { flush: 'post' }) );
    }
    function watchSyncEffect(effect, options) {
        return doWatch(effect, null, Object.assign(Object.assign({}, options), { flush: 'sync' }) );
    }
    // initial value for watchers to trigger on undefined initial values
    const INITIAL_WATCHER_VALUE = {};
    // implementation
    function watch(source, cb, options) {
        if (!isFunction(cb)) {
            warn(`\`watch(fn, options?)\` signature has been moved to a separate API. ` +
                `Use \`watchEffect(fn, options?)\` instead. \`watch\` now only ` +
                `supports \`watch(source, cb, options?) signature.`);
        }
        return doWatch(source, cb, options);
    }
    function doWatch(source, cb, { immediate, deep, flush, onTrack, onTrigger } = EMPTY_OBJ) {
        if (!cb) {
            if (immediate !== undefined) {
                warn(`watch() "immediate" option is only respected when using the ` +
                    `watch(source, callback, options?) signature.`);
            }
            if (deep !== undefined) {
                warn(`watch() "deep" option is only respected when using the ` +
                    `watch(source, callback, options?) signature.`);
            }
        }
        const warnInvalidSource = (s) => {
            warn(`Invalid watch source: `, s, `A watch source can only be a getter/effect function, a ref, ` +
                `a reactive object, or an array of these types.`);
        };
        const instance = getCurrentScope() === (currentInstance === null || currentInstance === void 0 ? void 0 : currentInstance.scope) ? currentInstance : null;
        // const instance = currentInstance
        let getter;
        let forceTrigger = false;
        let isMultiSource = false;
        if (isRef(source)) {
            getter = () => source.value;
            forceTrigger = isShallow(source);
        }
        else if (isReactive(source)) {
            getter = () => source;
            deep = true;
        }
        else if (isArray(source)) {
            isMultiSource = true;
            forceTrigger = source.some(s => isReactive(s) || isShallow(s));
            getter = () => source.map(s => {
                if (isRef(s)) {
                    return s.value;
                }
                else if (isReactive(s)) {
                    return traverse(s);
                }
                else if (isFunction(s)) {
                    return callWithErrorHandling(s, instance, 2 /* ErrorCodes.WATCH_GETTER */);
                }
                else {
                    warnInvalidSource(s);
                }
            });
        }
        else if (isFunction(source)) {
            if (cb) {
                // getter with cb
                getter = () => callWithErrorHandling(source, instance, 2 /* ErrorCodes.WATCH_GETTER */);
            }
            else {
                // no cb -> simple effect
                getter = () => {
                    if (instance && instance.isUnmounted) {
                        return;
                    }
                    if (cleanup) {
                        cleanup();
                    }
                    return callWithAsyncErrorHandling(source, instance, 3 /* ErrorCodes.WATCH_CALLBACK */, [onCleanup]);
                };
            }
        }
        else {
            getter = NOOP;
            warnInvalidSource(source);
        }
        if (cb && deep) {
            const baseGetter = getter;
            getter = () => traverse(baseGetter());
        }
        let cleanup;
        let onCleanup = (fn) => {
            cleanup = effect.onStop = () => {
                callWithErrorHandling(fn, instance, 4 /* ErrorCodes.WATCH_CLEANUP */);
            };
        };
        let oldValue = isMultiSource
            ? new Array(source.length).fill(INITIAL_WATCHER_VALUE)
            : INITIAL_WATCHER_VALUE;
        const job = () => {
            if (!effect.active) {
                return;
            }
            if (cb) {
                // watch(source, cb)
                const newValue = effect.run();
                if (deep ||
                    forceTrigger ||
                    (isMultiSource
                        ? newValue.some((v, i) => hasChanged(v, oldValue[i]))
                        : hasChanged(newValue, oldValue)) ||
                    (false  )) {
                    // cleanup before running cb again
                    if (cleanup) {
                        cleanup();
                    }
                    callWithAsyncErrorHandling(cb, instance, 3 /* ErrorCodes.WATCH_CALLBACK */, [
                        newValue,
                        // pass undefined as the old value when it's changed for the first time
                        oldValue === INITIAL_WATCHER_VALUE
                            ? undefined
                            : isMultiSource && oldValue[0] === INITIAL_WATCHER_VALUE
                                ? []
                                : oldValue,
                        onCleanup
                    ]);
                    oldValue = newValue;
                }
            }
            else {
                // watchEffect
                effect.run();
            }
        };
        // important: mark the job as a watcher callback so that scheduler knows
        // it is allowed to self-trigger (#1727)
        job.allowRecurse = !!cb;
        let scheduler;
        if (flush === 'sync') {
            scheduler = job; // the scheduler function gets called directly
        }
        else if (flush === 'post') {
            scheduler = () => queuePostRenderEffect(job, instance && instance.suspense);
        }
        else {
            // default: 'pre'
            job.pre = true;
            if (instance)
                job.id = instance.uid;
            scheduler = () => queueJob(job);
        }
        const effect = new ReactiveEffect(getter, scheduler);
        {
            effect.onTrack = onTrack;
            effect.onTrigger = onTrigger;
        }
        // initial run
        if (cb) {
            if (immediate) {
                job();
            }
            else {
                oldValue = effect.run();
            }
        }
        else if (flush === 'post') {
            queuePostRenderEffect(effect.run.bind(effect), instance && instance.suspense);
        }
        else {
            effect.run();
        }
        const unwatch = () => {
            effect.stop();
            if (instance && instance.scope) {
                remove(instance.scope.effects, effect);
            }
        };
        return unwatch;
    }
    // this.$watch
    function instanceWatch(source, value, options) {
        const publicThis = this.proxy;
        const getter = isString(source)
            ? source.includes('.')
                ? createPathGetter(publicThis, source)
                : () => publicThis[source]
            : source.bind(publicThis, publicThis);
        let cb;
        if (isFunction(value)) {
            cb = value;
        }
        else {
            cb = value.handler;
            options = value;
        }
        const cur = currentInstance;
        setCurrentInstance(this);
        const res = doWatch(getter, cb.bind(publicThis), options);
        if (cur) {
            setCurrentInstance(cur);
        }
        else {
            unsetCurrentInstance();
        }
        return res;
    }
    function createPathGetter(ctx, path) {
        const segments = path.split('.');
        return () => {
            let cur = ctx;
            for (let i = 0; i < segments.length && cur; i++) {
                cur = cur[segments[i]];
            }
            return cur;
        };
    }
    function traverse(value, seen) {
        if (!isObject(value) || value["__v_skip" /* ReactiveFlags.SKIP */]) {
            return value;
        }
        seen = seen || new Set();
        if (seen.has(value)) {
            return value;
        }
        seen.add(value);
        if (isRef(value)) {
            traverse(value.value, seen);
        }
        else if (isArray(value)) {
            for (let i = 0; i < value.length; i++) {
                traverse(value[i], seen);
            }
        }
        else if (isSet(value) || isMap(value)) {
            value.forEach((v) => {
                traverse(v, seen);
            });
        }
        else if (isPlainObject(value)) {
            for (const key in value) {
                traverse(value[key], seen);
            }
        }
        return value;
    }
  
    function useTransitionState() {
        const state = {
            isMounted: false,
            isLeaving: false,
            isUnmounting: false,
            leavingVNodes: new Map()
        };
        onMounted(() => {
            state.isMounted = true;
        });
        onBeforeUnmount(() => {
            state.isUnmounting = true;
        });
        return state;
    }
    const TransitionHookValidator = [Function, Array];
    const BaseTransitionImpl = {
        name: `BaseTransition`,
        props: {
            mode: String,
            appear: Boolean,
            persisted: Boolean,
            // enter
            onBeforeEnter: TransitionHookValidator,
            onEnter: TransitionHookValidator,
            onAfterEnter: TransitionHookValidator,
            onEnterCancelled: TransitionHookValidator,
            // leave
            onBeforeLeave: TransitionHookValidator,
            onLeave: TransitionHookValidator,
            onAfterLeave: TransitionHookValidator,
            onLeaveCancelled: TransitionHookValidator,
            // appear
            onBeforeAppear: TransitionHookValidator,
            onAppear: TransitionHookValidator,
            onAfterAppear: TransitionHookValidator,
            onAppearCancelled: TransitionHookValidator
        },
        setup(props, { slots }) {
            const instance = getCurrentInstance();
            const state = useTransitionState();
            let prevTransitionKey;
            return () => {
                const children = slots.default && getTransitionRawChildren(slots.default(), true);
                if (!children || !children.length) {
                    return;
                }
                let child = children[0];
                if (children.length > 1) {
                    let hasFound = false;
                    // locate first non-comment child
                    for (const c of children) {
                        if (c.type !== Comment) {
                            if (hasFound) {
                                // warn more than one non-comment child
                                warn('<transition> can only be used on a single element or component. ' +
                                    'Use <transition-group> for lists.');
                                break;
                            }
                            child = c;
                            hasFound = true;
                        }
                    }
                }
                // there's no need to track reactivity for these props so use the raw
                // props for a bit better perf
                const rawProps = toRaw(props);
                const { mode } = rawProps;
                // check mode
                if (mode &&
                    mode !== 'in-out' &&
                    mode !== 'out-in' &&
                    mode !== 'default') {
                    warn(`invalid <transition> mode: ${mode}`);
                }
                if (state.isLeaving) {
                    return emptyPlaceholder(child);
                }
                // in the case of <transition><keep-alive/></transition>, we need to
                // compare the type of the kept-alive children.
                const innerChild = getKeepAliveChild(child);
                if (!innerChild) {
                    return emptyPlaceholder(child);
                }
                const enterHooks = resolveTransitionHooks(innerChild, rawProps, state, instance);
                setTransitionHooks(innerChild, enterHooks);
                const oldChild = instance.subTree;
                const oldInnerChild = oldChild && getKeepAliveChild(oldChild);
                let transitionKeyChanged = false;
                const { getTransitionKey } = innerChild.type;
                if (getTransitionKey) {
                    const key = getTransitionKey();
                    if (prevTransitionKey === undefined) {
                        prevTransitionKey = key;
                    }
                    else if (key !== prevTransitionKey) {
                        prevTransitionKey = key;
                        transitionKeyChanged = true;
                    }
                }
                // handle mode
                if (oldInnerChild &&
                    oldInnerChild.type !== Comment &&
                    (!isSameVNodeType(innerChild, oldInnerChild) || transitionKeyChanged)) {
                    const leavingHooks = resolveTransitionHooks(oldInnerChild, rawProps, state, instance);
                    // update old tree's hooks in case of dynamic transition
                    setTransitionHooks(oldInnerChild, leavingHooks);
                    // switching between different views
                    if (mode === 'out-in') {
                        state.isLeaving = true;
                        // return placeholder node and queue update when leave finishes
                        leavingHooks.afterLeave = () => {
                            state.isLeaving = false;
                            // #6835
                            // it also needs to be updated when active is undefined
                            if (instance.update.active !== false) {
                                instance.update();
                            }
                        };
                        return emptyPlaceholder(child);
                    }
                    else if (mode === 'in-out' && innerChild.type !== Comment) {
                        leavingHooks.delayLeave = (el, earlyRemove, delayedLeave) => {
                            const leavingVNodesCache = getLeavingNodesForType(state, oldInnerChild);
                            leavingVNodesCache[String(oldInnerChild.key)] = oldInnerChild;
                            // early removal callback
                            el._leaveCb = () => {
                                earlyRemove();
                                el._leaveCb = undefined;
                                delete enterHooks.delayedLeave;
                            };
                            enterHooks.delayedLeave = delayedLeave;
                        };
                    }
                }
                return child;
            };
        }
    };
    // export the public type for h/tsx inference
    // also to avoid inline import() in generated d.ts files
    const BaseTransition = BaseTransitionImpl;
    function getLeavingNodesForType(state, vnode) {
        const { leavingVNodes } = state;
        let leavingVNodesCache = leavingVNodes.get(vnode.type);
        if (!leavingVNodesCache) {
            leavingVNodesCache = Object.create(null);
            leavingVNodes.set(vnode.type, leavingVNodesCache);
        }
        return leavingVNodesCache;
    }
    // The transition hooks are attached to the vnode as vnode.transition
    // and will be called at appropriate timing in the renderer.
    function resolveTransitionHooks(vnode, props, state, instance) {
        const { appear, mode, persisted = false, onBeforeEnter, onEnter, onAfterEnter, onEnterCancelled, onBeforeLeave, onLeave, onAfterLeave, onLeaveCancelled, onBeforeAppear, onAppear, onAfterAppear, onAppearCancelled } = props;
        const key = String(vnode.key);
        const leavingVNodesCache = getLeavingNodesForType(state, vnode);
        const callHook = (hook, args) => {
            hook &&
                callWithAsyncErrorHandling(hook, instance, 9 /* ErrorCodes.TRANSITION_HOOK */, args);
        };
        const callAsyncHook = (hook, args) => {
            const done = args[1];
            callHook(hook, args);
            if (isArray(hook)) {
                if (hook.every(hook => hook.length <= 1))
                    done();
            }
            else if (hook.length <= 1) {
                done();
            }
        };
        const hooks = {
            mode,
            persisted,
            beforeEnter(el) {
                let hook = onBeforeEnter;
                if (!state.isMounted) {
                    if (appear) {
                        hook = onBeforeAppear || onBeforeEnter;
                    }
                    else {
                        return;
                    }
                }
                // for same element (v-show)
                if (el._leaveCb) {
                    el._leaveCb(true /* cancelled */);
                }
                // for toggled element with same key (v-if)
                const leavingVNode = leavingVNodesCache[key];
                if (leavingVNode &&
                    isSameVNodeType(vnode, leavingVNode) &&
                    leavingVNode.el._leaveCb) {
                    // force early removal (not cancelled)
                    leavingVNode.el._leaveCb();
                }
                callHook(hook, [el]);
            },
            enter(el) {
                let hook = onEnter;
                let afterHook = onAfterEnter;
                let cancelHook = onEnterCancelled;
                if (!state.isMounted) {
                    if (appear) {
                        hook = onAppear || onEnter;
                        afterHook = onAfterAppear || onAfterEnter;
                        cancelHook = onAppearCancelled || onEnterCancelled;
                    }
                    else {
                        return;
                    }
                }
                let called = false;
                const done = (el._enterCb = (cancelled) => {
                    if (called)
                        return;
                    called = true;
                    if (cancelled) {
                        callHook(cancelHook, [el]);
                    }
                    else {
                        callHook(afterHook, [el]);
                    }
                    if (hooks.delayedLeave) {
                        hooks.delayedLeave();
                    }
                    el._enterCb = undefined;
                });
                if (hook) {
                    callAsyncHook(hook, [el, done]);
                }
                else {
                    done();
                }
            },
            leave(el, remove) {
                const key = String(vnode.key);
                if (el._enterCb) {
                    el._enterCb(true /* cancelled */);
                }
                if (state.isUnmounting) {
                    return remove();
                }
                callHook(onBeforeLeave, [el]);
                let called = false;
                const done = (el._leaveCb = (cancelled) => {
                    if (called)
                        return;
                    called = true;
                    remove();
                    if (cancelled) {
                        callHook(onLeaveCancelled, [el]);
                    }
                    else {
                        callHook(onAfterLeave, [el]);
                    }
                    el._leaveCb = undefined;
                    if (leavingVNodesCache[key] === vnode) {
                        delete leavingVNodesCache[key];
                    }
                });
                leavingVNodesCache[key] = vnode;
                if (onLeave) {
                    callAsyncHook(onLeave, [el, done]);
                }
                else {
                    done();
                }
            },
            clone(vnode) {
                return resolveTransitionHooks(vnode, props, state, instance);
            }
        };
        return hooks;
    }
    // the placeholder really only handles one special case: KeepAlive
    // in the case of a KeepAlive in a leave phase we need to return a KeepAlive
    // placeholder with empty content to avoid the KeepAlive instance from being
    // unmounted.
    function emptyPlaceholder(vnode) {
        if (isKeepAlive(vnode)) {
            vnode = cloneVNode(vnode);
            vnode.children = null;
            return vnode;
        }
    }
    function getKeepAliveChild(vnode) {
        return isKeepAlive(vnode)
            ? vnode.children
                ? vnode.children[0]
                : undefined
            : vnode;
    }
    function setTransitionHooks(vnode, hooks) {
        if (vnode.shapeFlag & 6 /* ShapeFlags.COMPONENT */ && vnode.component) {
            setTransitionHooks(vnode.component.subTree, hooks);
        }
        else if (vnode.shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
            vnode.ssContent.transition = hooks.clone(vnode.ssContent);
            vnode.ssFallback.transition = hooks.clone(vnode.ssFallback);
        }
        else {
            vnode.transition = hooks;
        }
    }
    function getTransitionRawChildren(children, keepComment = false, parentKey) {
        let ret = [];
        let keyedFragmentCount = 0;
        for (let i = 0; i < children.length; i++) {
            let child = children[i];
            // #5360 inherit parent key in case of <template v-for>
            const key = parentKey == null
                ? child.key
                : String(parentKey) + String(child.key != null ? child.key : i);
            // handle fragment children case, e.g. v-for
            if (child.type === Fragment) {
                if (child.patchFlag & 128 /* PatchFlags.KEYED_FRAGMENT */)
                    keyedFragmentCount++;
                ret = ret.concat(getTransitionRawChildren(child.children, keepComment, key));
            }
            // comment placeholders should be skipped, e.g. v-if
            else if (keepComment || child.type !== Comment) {
                ret.push(key != null ? cloneVNode(child, { key }) : child);
            }
        }
        // #1126 if a transition children list contains multiple sub fragments, these
        // fragments will be merged into a flat children array. Since each v-for
        // fragment may contain different static bindings inside, we need to de-op
        // these children to force full diffs to ensure correct behavior.
        if (keyedFragmentCount > 1) {
            for (let i = 0; i < ret.length; i++) {
                ret[i].patchFlag = -2 /* PatchFlags.BAIL */;
            }
        }
        return ret;
    }
  
    // implementation, close to no-op
    function defineComponent(options) {
        return isFunction(options) ? { setup: options, name: options.name } : options;
    }
  
    const isAsyncWrapper = (i) => !!i.type.__asyncLoader;
    function defineAsyncComponent(source) {
        if (isFunction(source)) {
            source = { loader: source };
        }
        const { loader, loadingComponent, errorComponent, delay = 200, timeout, // undefined = never times out
        suspensible = true, onError: userOnError } = source;
        let pendingRequest = null;
        let resolvedComp;
        let retries = 0;
        const retry = () => {
            retries++;
            pendingRequest = null;
            return load();
        };
        const load = () => {
            let thisRequest;
            return (pendingRequest ||
                (thisRequest = pendingRequest =
                    loader()
                        .catch(err => {
                        err = err instanceof Error ? err : new Error(String(err));
                        if (userOnError) {
                            return new Promise((resolve, reject) => {
                                const userRetry = () => resolve(retry());
                                const userFail = () => reject(err);
                                userOnError(err, userRetry, userFail, retries + 1);
                            });
                        }
                        else {
                            throw err;
                        }
                    })
                        .then((comp) => {
                        if (thisRequest !== pendingRequest && pendingRequest) {
                            return pendingRequest;
                        }
                        if (!comp) {
                            warn(`Async component loader resolved to undefined. ` +
                                `If you are using retry(), make sure to return its return value.`);
                        }
                        // interop module default
                        if (comp &&
                            (comp.__esModule || comp[Symbol.toStringTag] === 'Module')) {
                            comp = comp.default;
                        }
                        if (comp && !isObject(comp) && !isFunction(comp)) {
                            throw new Error(`Invalid async component load result: ${comp}`);
                        }
                        resolvedComp = comp;
                        return comp;
                    })));
        };
        return defineComponent({
            name: 'AsyncComponentWrapper',
            __asyncLoader: load,
            get __asyncResolved() {
                return resolvedComp;
            },
            setup() {
                const instance = currentInstance;
                // already resolved
                if (resolvedComp) {
                    return () => createInnerComp(resolvedComp, instance);
                }
                const onError = (err) => {
                    pendingRequest = null;
                    handleError(err, instance, 13 /* ErrorCodes.ASYNC_COMPONENT_LOADER */, !errorComponent /* do not throw in dev if user provided error component */);
                };
                // suspense-controlled or SSR.
                if ((suspensible && instance.suspense) ||
                    (false )) {
                    return load()
                        .then(comp => {
                        return () => createInnerComp(comp, instance);
                    })
                        .catch(err => {
                        onError(err);
                        return () => errorComponent
                            ? createVNode(errorComponent, {
                                error: err
                            })
                            : null;
                    });
                }
                const loaded = ref(false);
                const error = ref();
                const delayed = ref(!!delay);
                if (delay) {
                    setTimeout(() => {
                        delayed.value = false;
                    }, delay);
                }
                if (timeout != null) {
                    setTimeout(() => {
                        if (!loaded.value && !error.value) {
                            const err = new Error(`Async component timed out after ${timeout}ms.`);
                            onError(err);
                            error.value = err;
                        }
                    }, timeout);
                }
                load()
                    .then(() => {
                    loaded.value = true;
                    if (instance.parent && isKeepAlive(instance.parent.vnode)) {
                        // parent is keep-alive, force update so the loaded component's
                        // name is taken into account
                        queueJob(instance.parent.update);
                    }
                })
                    .catch(err => {
                    onError(err);
                    error.value = err;
                });
                return () => {
                    if (loaded.value && resolvedComp) {
                        return createInnerComp(resolvedComp, instance);
                    }
                    else if (error.value && errorComponent) {
                        return createVNode(errorComponent, {
                            error: error.value
                        });
                    }
                    else if (loadingComponent && !delayed.value) {
                        return createVNode(loadingComponent);
                    }
                };
            }
        });
    }
    function createInnerComp(comp, parent) {
        const { ref, props, children, ce } = parent.vnode;
        const vnode = createVNode(comp, props, children);
        // ensure inner component inherits the async wrapper's ref owner
        vnode.ref = ref;
        // pass the custom element callback on to the inner comp
        // and remove it from the async wrapper
        vnode.ce = ce;
        delete parent.vnode.ce;
        return vnode;
    }
  
    const isKeepAlive = (vnode) => vnode.type.__isKeepAlive;
    const KeepAliveImpl = {
        name: `KeepAlive`,
        // Marker for special handling inside the renderer. We are not using a ===
        // check directly on KeepAlive in the renderer, because importing it directly
        // would prevent it from being tree-shaken.
        __isKeepAlive: true,
        props: {
            include: [String, RegExp, Array],
            exclude: [String, RegExp, Array],
            max: [String, Number]
        },
        setup(props, { slots }) {
            const instance = getCurrentInstance();
            // KeepAlive communicates with the instantiated renderer via the
            // ctx where the renderer passes in its internals,
            // and the KeepAlive instance exposes activate/deactivate implementations.
            // The whole point of this is to avoid importing KeepAlive directly in the
            // renderer to facilitate tree-shaking.
            const sharedContext = instance.ctx;
            const cache = new Map();
            const keys = new Set();
            let current = null;
            {
                instance.__v_cache = cache;
            }
            const parentSuspense = instance.suspense;
            const { renderer: { p: patch, m: move, um: _unmount, o: { createElement } } } = sharedContext;
            const storageContainer = createElement('div');
            sharedContext.activate = (vnode, container, anchor, isSVG, optimized) => {
                const instance = vnode.component;
                move(vnode, container, anchor, 0 /* MoveType.ENTER */, parentSuspense);
                // in case props have changed
                patch(instance.vnode, vnode, container, anchor, instance, parentSuspense, isSVG, vnode.slotScopeIds, optimized);
                queuePostRenderEffect(() => {
                    instance.isDeactivated = false;
                    if (instance.a) {
                        invokeArrayFns(instance.a);
                    }
                    const vnodeHook = vnode.props && vnode.props.onVnodeMounted;
                    if (vnodeHook) {
                        invokeVNodeHook(vnodeHook, instance.parent, vnode);
                    }
                }, parentSuspense);
                {
                    // Update components tree
                    devtoolsComponentAdded(instance);
                }
            };
            sharedContext.deactivate = (vnode) => {
                const instance = vnode.component;
                move(vnode, storageContainer, null, 1 /* MoveType.LEAVE */, parentSuspense);
                queuePostRenderEffect(() => {
                    if (instance.da) {
                        invokeArrayFns(instance.da);
                    }
                    const vnodeHook = vnode.props && vnode.props.onVnodeUnmounted;
                    if (vnodeHook) {
                        invokeVNodeHook(vnodeHook, instance.parent, vnode);
                    }
                    instance.isDeactivated = true;
                }, parentSuspense);
                {
                    // Update components tree
                    devtoolsComponentAdded(instance);
                }
            };
            function unmount(vnode) {
                // reset the shapeFlag so it can be properly unmounted
                resetShapeFlag(vnode);
                _unmount(vnode, instance, parentSuspense, true);
            }
            function pruneCache(filter) {
                cache.forEach((vnode, key) => {
                    const name = getComponentName(vnode.type);
                    if (name && (!filter || !filter(name))) {
                        pruneCacheEntry(key);
                    }
                });
            }
            function pruneCacheEntry(key) {
                const cached = cache.get(key);
                if (!current || !isSameVNodeType(cached, current)) {
                    unmount(cached);
                }
                else if (current) {
                    // current active instance should no longer be kept-alive.
                    // we can't unmount it now but it might be later, so reset its flag now.
                    resetShapeFlag(current);
                }
                cache.delete(key);
                keys.delete(key);
            }
            // prune cache on include/exclude prop change
            watch(() => [props.include, props.exclude], ([include, exclude]) => {
                include && pruneCache(name => matches(include, name));
                exclude && pruneCache(name => !matches(exclude, name));
            }, 
            // prune post-render after `current` has been updated
            { flush: 'post', deep: true });
            // cache sub tree after render
            let pendingCacheKey = null;
            const cacheSubtree = () => {
                // fix #1621, the pendingCacheKey could be 0
                if (pendingCacheKey != null) {
                    cache.set(pendingCacheKey, getInnerChild(instance.subTree));
                }
            };
            onMounted(cacheSubtree);
            onUpdated(cacheSubtree);
            onBeforeUnmount(() => {
                cache.forEach(cached => {
                    const { subTree, suspense } = instance;
                    const vnode = getInnerChild(subTree);
                    if (cached.type === vnode.type && cached.key === vnode.key) {
                        // current instance will be unmounted as part of keep-alive's unmount
                        resetShapeFlag(vnode);
                        // but invoke its deactivated hook here
                        const da = vnode.component.da;
                        da && queuePostRenderEffect(da, suspense);
                        return;
                    }
                    unmount(cached);
                });
            });
            return () => {
                pendingCacheKey = null;
                if (!slots.default) {
                    return null;
                }
                const children = slots.default();
                const rawVNode = children[0];
                if (children.length > 1) {
                    {
                        warn(`KeepAlive should contain exactly one component child.`);
                    }
                    current = null;
                    return children;
                }
                else if (!isVNode(rawVNode) ||
                    (!(rawVNode.shapeFlag & 4 /* ShapeFlags.STATEFUL_COMPONENT */) &&
                        !(rawVNode.shapeFlag & 128 /* ShapeFlags.SUSPENSE */))) {
                    current = null;
                    return rawVNode;
                }
                let vnode = getInnerChild(rawVNode);
                const comp = vnode.type;
                // for async components, name check should be based in its loaded
                // inner component if available
                const name = getComponentName(isAsyncWrapper(vnode)
                    ? vnode.type.__asyncResolved || {}
                    : comp);
                const { include, exclude, max } = props;
                if ((include && (!name || !matches(include, name))) ||
                    (exclude && name && matches(exclude, name))) {
                    current = vnode;
                    return rawVNode;
                }
                const key = vnode.key == null ? comp : vnode.key;
                const cachedVNode = cache.get(key);
                // clone vnode if it's reused because we are going to mutate it
                if (vnode.el) {
                    vnode = cloneVNode(vnode);
                    if (rawVNode.shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
                        rawVNode.ssContent = vnode;
                    }
                }
                // #1513 it's possible for the returned vnode to be cloned due to attr
                // fallthrough or scopeId, so the vnode here may not be the final vnode
                // that is mounted. Instead of caching it directly, we store the pending
                // key and cache `instance.subTree` (the normalized vnode) in
                // beforeMount/beforeUpdate hooks.
                pendingCacheKey = key;
                if (cachedVNode) {
                    // copy over mounted state
                    vnode.el = cachedVNode.el;
                    vnode.component = cachedVNode.component;
                    if (vnode.transition) {
                        // recursively update transition hooks on subTree
                        setTransitionHooks(vnode, vnode.transition);
                    }
                    // avoid vnode being mounted as fresh
                    vnode.shapeFlag |= 512 /* ShapeFlags.COMPONENT_KEPT_ALIVE */;
                    // make this key the freshest
                    keys.delete(key);
                    keys.add(key);
                }
                else {
                    keys.add(key);
                    // prune oldest entry
                    if (max && keys.size > parseInt(max, 10)) {
                        pruneCacheEntry(keys.values().next().value);
                    }
                }
                // avoid vnode being unmounted
                vnode.shapeFlag |= 256 /* ShapeFlags.COMPONENT_SHOULD_KEEP_ALIVE */;
                current = vnode;
                return isSuspense(rawVNode.type) ? rawVNode : vnode;
            };
        }
    };
    // export the public type for h/tsx inference
    // also to avoid inline import() in generated d.ts files
    const KeepAlive = KeepAliveImpl;
    function matches(pattern, name) {
        if (isArray(pattern)) {
            return pattern.some((p) => matches(p, name));
        }
        else if (isString(pattern)) {
            return pattern.split(',').includes(name);
        }
        else if (isRegExp(pattern)) {
            return pattern.test(name);
        }
        /* istanbul ignore next */
        return false;
    }
    function onActivated(hook, target) {
        registerKeepAliveHook(hook, "a" /* LifecycleHooks.ACTIVATED */, target);
    }
    function onDeactivated(hook, target) {
        registerKeepAliveHook(hook, "da" /* LifecycleHooks.DEACTIVATED */, target);
    }
    function registerKeepAliveHook(hook, type, target = currentInstance) {
        // cache the deactivate branch check wrapper for injected hooks so the same
        // hook can be properly deduped by the scheduler. "__wdc" stands for "with
        // deactivation check".
        const wrappedHook = hook.__wdc ||
            (hook.__wdc = () => {
                // only fire the hook if the target instance is NOT in a deactivated branch.
                let current = target;
                while (current) {
                    if (current.isDeactivated) {
                        return;
                    }
                    current = current.parent;
                }
                return hook();
            });
        injectHook(type, wrappedHook, target);
        // In addition to registering it on the target instance, we walk up the parent
        // chain and register it on all ancestor instances that are keep-alive roots.
        // This avoids the need to walk the entire component tree when invoking these
        // hooks, and more importantly, avoids the need to track child components in
        // arrays.
        if (target) {
            let current = target.parent;
            while (current && current.parent) {
                if (isKeepAlive(current.parent.vnode)) {
                    injectToKeepAliveRoot(wrappedHook, type, target, current);
                }
                current = current.parent;
            }
        }
    }
    function injectToKeepAliveRoot(hook, type, target, keepAliveRoot) {
        // injectHook wraps the original for error handling, so make sure to remove
        // the wrapped version.
        const injected = injectHook(type, hook, keepAliveRoot, true /* prepend */);
        onUnmounted(() => {
            remove(keepAliveRoot[type], injected);
        }, target);
    }
    function resetShapeFlag(vnode) {
        // bitwise operations to remove keep alive flags
        vnode.shapeFlag &= ~256 /* ShapeFlags.COMPONENT_SHOULD_KEEP_ALIVE */;
        vnode.shapeFlag &= ~512 /* ShapeFlags.COMPONENT_KEPT_ALIVE */;
    }
    function getInnerChild(vnode) {
        return vnode.shapeFlag & 128 /* ShapeFlags.SUSPENSE */ ? vnode.ssContent : vnode;
    }
  
    function injectHook(type, hook, target = currentInstance, prepend = false) {
        if (target) {
            const hooks = target[type] || (target[type] = []);
            // cache the error handling wrapper for injected hooks so the same hook
            // can be properly deduped by the scheduler. "__weh" stands for "with error
            // handling".
            const wrappedHook = hook.__weh ||
                (hook.__weh = (...args) => {
                    if (target.isUnmounted) {
                        return;
                    }
                    // disable tracking inside all lifecycle hooks
                    // since they can potentially be called inside effects.
                    pauseTracking();
                    // Set currentInstance during hook invocation.
                    // This assumes the hook does not synchronously trigger other hooks, which
                    // can only be false when the user does something really funky.
                    setCurrentInstance(target);
                    const res = callWithAsyncErrorHandling(hook, target, type, args);
                    unsetCurrentInstance();
                    resetTracking();
                    return res;
                });
            if (prepend) {
                hooks.unshift(wrappedHook);
            }
            else {
                hooks.push(wrappedHook);
            }
            return wrappedHook;
        }
        else {
            const apiName = toHandlerKey(ErrorTypeStrings[type].replace(/ hook$/, ''));
            warn(`${apiName} is called when there is no active component instance to be ` +
                `associated with. ` +
                `Lifecycle injection APIs can only be used during execution of setup().` +
                (` If you are using async setup(), make sure to register lifecycle ` +
                        `hooks before the first await statement.`
                    ));
        }
    }
    const createHook = (lifecycle) => (hook, target = currentInstance) => 
    // post-create lifecycle registrations are noops during SSR (except for serverPrefetch)
    (!isInSSRComponentSetup || lifecycle === "sp" /* LifecycleHooks.SERVER_PREFETCH */) &&
        injectHook(lifecycle, (...args) => hook(...args), target);
    const onBeforeMount = createHook("bm" /* LifecycleHooks.BEFORE_MOUNT */);
    const onMounted = createHook("m" /* LifecycleHooks.MOUNTED */);
    const onBeforeUpdate = createHook("bu" /* LifecycleHooks.BEFORE_UPDATE */);
    const onUpdated = createHook("u" /* LifecycleHooks.UPDATED */);
    const onBeforeUnmount = createHook("bum" /* LifecycleHooks.BEFORE_UNMOUNT */);
    const onUnmounted = createHook("um" /* LifecycleHooks.UNMOUNTED */);
    const onServerPrefetch = createHook("sp" /* LifecycleHooks.SERVER_PREFETCH */);
    const onRenderTriggered = createHook("rtg" /* LifecycleHooks.RENDER_TRIGGERED */);
    const onRenderTracked = createHook("rtc" /* LifecycleHooks.RENDER_TRACKED */);
    function onErrorCaptured(hook, target = currentInstance) {
        injectHook("ec" /* LifecycleHooks.ERROR_CAPTURED */, hook, target);
    }
  
    /**
    Runtime helper for applying directives to a vnode. Example usage:
  
    const comp = resolveComponent('comp')
    const foo = resolveDirective('foo')
    const bar = resolveDirective('bar')
  
    return withDirectives(h(comp), [
      [foo, this.x],
      [bar, this.y]
    ])
    */
    function validateDirectiveName(name) {
        if (isBuiltInDirective(name)) {
            warn('Do not use built-in directive ids as custom directive id: ' + name);
        }
    }
    /**
     * Adds directives to a VNode.
     */
    function withDirectives(vnode, directives) {
        const internalInstance = currentRenderingInstance;
        if (internalInstance === null) {
            warn(`withDirectives can only be used inside render functions.`);
            return vnode;
        }
        const instance = getExposeProxy(internalInstance) ||
            internalInstance.proxy;
        const bindings = vnode.dirs || (vnode.dirs = []);
        for (let i = 0; i < directives.length; i++) {
            let [dir, value, arg, modifiers = EMPTY_OBJ] = directives[i];
            if (dir) {
                if (isFunction(dir)) {
                    dir = {
                        mounted: dir,
                        updated: dir
                    };
                }
                if (dir.deep) {
                    traverse(value);
                }
                bindings.push({
                    dir,
                    instance,
                    value,
                    oldValue: void 0,
                    arg,
                    modifiers
                });
            }
        }
        return vnode;
    }
    function invokeDirectiveHook(vnode, prevVNode, instance, name) {
        const bindings = vnode.dirs;
        const oldBindings = prevVNode && prevVNode.dirs;
        for (let i = 0; i < bindings.length; i++) {
            const binding = bindings[i];
            if (oldBindings) {
                binding.oldValue = oldBindings[i].value;
            }
            let hook = binding.dir[name];
            if (hook) {
                // disable tracking inside all lifecycle hooks
                // since they can potentially be called inside effects.
                pauseTracking();
                callWithAsyncErrorHandling(hook, instance, 8 /* ErrorCodes.DIRECTIVE_HOOK */, [
                    vnode.el,
                    binding,
                    vnode,
                    prevVNode
                ]);
                resetTracking();
            }
        }
    }
  
    const COMPONENTS = 'components';
    const DIRECTIVES = 'directives';
    /**
     * @private
     */
    function resolveComponent(name, maybeSelfReference) {
        return resolveAsset(COMPONENTS, name, true, maybeSelfReference) || name;
    }
    const NULL_DYNAMIC_COMPONENT = Symbol();
    /**
     * @private
     */
    function resolveDynamicComponent(component) {
        if (isString(component)) {
            return resolveAsset(COMPONENTS, component, false) || component;
        }
        else {
            // invalid types will fallthrough to createVNode and raise warning
            return (component || NULL_DYNAMIC_COMPONENT);
        }
    }
    /**
     * @private
     */
    function resolveDirective(name) {
        return resolveAsset(DIRECTIVES, name);
    }
    // implementation
    function resolveAsset(type, name, warnMissing = true, maybeSelfReference = false) {
        const instance = currentRenderingInstance || currentInstance;
        if (instance) {
            const Component = instance.type;
            // explicit self name has highest priority
            if (type === COMPONENTS) {
                const selfName = getComponentName(Component, false /* do not include inferred name to avoid breaking existing code */);
                if (selfName &&
                    (selfName === name ||
                        selfName === camelize(name) ||
                        selfName === capitalize(camelize(name)))) {
                    return Component;
                }
            }
            const res = 
            // local registration
            // check instance[type] first which is resolved for options API
            resolve(instance[type] || Component[type], name) ||
                // global registration
                resolve(instance.appContext[type], name);
            if (!res && maybeSelfReference) {
                // fallback to implicit self-reference
                return Component;
            }
            if (warnMissing && !res) {
                const extra = type === COMPONENTS
                    ? `\nIf this is a native custom element, make sure to exclude it from ` +
                        `component resolution via compilerOptions.isCustomElement.`
                    : ``;
                warn(`Failed to resolve ${type.slice(0, -1)}: ${name}${extra}`);
            }
            return res;
        }
        else {
            warn(`resolve${capitalize(type.slice(0, -1))} ` +
                `can only be used in render() or setup().`);
        }
    }
    function resolve(registry, name) {
        return (registry &&
            (registry[name] ||
                registry[camelize(name)] ||
                registry[capitalize(camelize(name))]));
    }
  
    /**
     * Actual implementation
     */
    function renderList(source, renderItem, cache, index) {
        let ret;
        const cached = (cache && cache[index]);
        if (isArray(source) || isString(source)) {
            ret = new Array(source.length);
            for (let i = 0, l = source.length; i < l; i++) {
                ret[i] = renderItem(source[i], i, undefined, cached && cached[i]);
            }
        }
        else if (typeof source === 'number') {
            if (!Number.isInteger(source)) {
                warn(`The v-for range expect an integer value but got ${source}.`);
            }
            ret = new Array(source);
            for (let i = 0; i < source; i++) {
                ret[i] = renderItem(i + 1, i, undefined, cached && cached[i]);
            }
        }
        else if (isObject(source)) {
            if (source[Symbol.iterator]) {
                ret = Array.from(source, (item, i) => renderItem(item, i, undefined, cached && cached[i]));
            }
            else {
                const keys = Object.keys(source);
                ret = new Array(keys.length);
                for (let i = 0, l = keys.length; i < l; i++) {
                    const key = keys[i];
                    ret[i] = renderItem(source[key], key, i, cached && cached[i]);
                }
            }
        }
        else {
            ret = [];
        }
        if (cache) {
            cache[index] = ret;
        }
        return ret;
    }
  
    /**
     * Compiler runtime helper for creating dynamic slots object
     * @private
     */
    function createSlots(slots, dynamicSlots) {
        for (let i = 0; i < dynamicSlots.length; i++) {
            const slot = dynamicSlots[i];
            // array of dynamic slot generated by <template v-for="..." #[...]>
            if (isArray(slot)) {
                for (let j = 0; j < slot.length; j++) {
                    slots[slot[j].name] = slot[j].fn;
                }
            }
            else if (slot) {
                // conditional single slot generated by <template v-if="..." #foo>
                slots[slot.name] = slot.key
                    ? (...args) => {
                        const res = slot.fn(...args);
                        // attach branch key so each conditional branch is considered a
                        // different fragment
                        if (res)
                            res.key = slot.key;
                        return res;
                    }
                    : slot.fn;
            }
        }
        return slots;
    }
  
    /**
     * Compiler runtime helper for rendering `<slot/>`
     * @private
     */
    function renderSlot(slots, name, props = {}, 
    // this is not a user-facing function, so the fallback is always generated by
    // the compiler and guaranteed to be a function returning an array
    fallback, noSlotted) {
        if (currentRenderingInstance.isCE ||
            (currentRenderingInstance.parent &&
                isAsyncWrapper(currentRenderingInstance.parent) &&
                currentRenderingInstance.parent.isCE)) {
            if (name !== 'default')
                props.name = name;
            return createVNode('slot', props, fallback && fallback());
        }
        let slot = slots[name];
        if (slot && slot.length > 1) {
            warn(`SSR-optimized slot function detected in a non-SSR-optimized render ` +
                `function. You need to mark this component with $dynamic-slots in the ` +
                `parent template.`);
            slot = () => [];
        }
        // a compiled slot disables block tracking by default to avoid manual
        // invocation interfering with template-based block tracking, but in
        // `renderSlot` we can be sure that it's template-based so we can force
        // enable it.
        if (slot && slot._c) {
            slot._d = false;
        }
        openBlock();
        const validSlotContent = slot && ensureValidVNode(slot(props));
        const rendered = createBlock(Fragment, {
            key: props.key ||
                // slot content array of a dynamic conditional slot may have a branch
                // key attached in the `createSlots` helper, respect that
                (validSlotContent && validSlotContent.key) ||
                `_${name}`
        }, validSlotContent || (fallback ? fallback() : []), validSlotContent && slots._ === 1 /* SlotFlags.STABLE */
            ? 64 /* PatchFlags.STABLE_FRAGMENT */
            : -2 /* PatchFlags.BAIL */);
        if (!noSlotted && rendered.scopeId) {
            rendered.slotScopeIds = [rendered.scopeId + '-s'];
        }
        if (slot && slot._c) {
            slot._d = true;
        }
        return rendered;
    }
    function ensureValidVNode(vnodes) {
        return vnodes.some(child => {
            if (!isVNode(child))
                return true;
            if (child.type === Comment)
                return false;
            if (child.type === Fragment &&
                !ensureValidVNode(child.children))
                return false;
            return true;
        })
            ? vnodes
            : null;
    }
  
    /**
     * For prefixing keys in v-on="obj" with "on"
     * @private
     */
    function toHandlers(obj, preserveCaseIfNecessary) {
        const ret = {};
        if (!isObject(obj)) {
            warn(`v-on with no argument expects an object value.`);
            return ret;
        }
        for (const key in obj) {
            ret[preserveCaseIfNecessary && /[A-Z]/.test(key)
                ? `on:${key}`
                : toHandlerKey(key)] = obj[key];
        }
        return ret;
    }
  
    /**
     * #2437 In Vue 3, functional components do not have a public instance proxy but
     * they exist in the internal parent chain. For code that relies on traversing
     * public $parent chains, skip functional ones and go to the parent instead.
     */
    const getPublicInstance = (i) => {
        if (!i)
            return null;
        if (isStatefulComponent(i))
            return getExposeProxy(i) || i.proxy;
        return getPublicInstance(i.parent);
    };
    const publicPropertiesMap = 
    // Move PURE marker to new line to workaround compiler discarding it
    // due to type annotation
    /*#__PURE__*/ extend(Object.create(null), {
        $: i => i,
        $el: i => i.vnode.el,
        $data: i => i.data,
        $props: i => (shallowReadonly(i.props) ),
        $attrs: i => (shallowReadonly(i.attrs) ),
        $slots: i => (shallowReadonly(i.slots) ),
        $refs: i => (shallowReadonly(i.refs) ),
        $parent: i => getPublicInstance(i.parent),
        $root: i => getPublicInstance(i.root),
        $emit: i => i.emit,
        $options: i => (resolveMergedOptions(i) ),
        $forceUpdate: i => i.f || (i.f = () => queueJob(i.update)),
        $nextTick: i => i.n || (i.n = nextTick.bind(i.proxy)),
        $watch: i => (instanceWatch.bind(i) )
    });
    const isReservedPrefix = (key) => key === '_' || key === '$';
    const hasSetupBinding = (state, key) => state !== EMPTY_OBJ && !state.__isScriptSetup && hasOwn(state, key);
    const PublicInstanceProxyHandlers = {
        get({ _: instance }, key) {
            const { ctx, setupState, data, props, accessCache, type, appContext } = instance;
            // for internal formatters to know that this is a Vue instance
            if (key === '__isVue') {
                return true;
            }
            // data / props / ctx
            // This getter gets called for every property access on the render context
            // during render and is a major hotspot. The most expensive part of this
            // is the multiple hasOwn() calls. It's much faster to do a simple property
            // access on a plain object, so we use an accessCache object (with null
            // prototype) to memoize what access type a key corresponds to.
            let normalizedProps;
            if (key[0] !== '$') {
                const n = accessCache[key];
                if (n !== undefined) {
                    switch (n) {
                        case 1 /* AccessTypes.SETUP */:
                            return setupState[key];
                        case 2 /* AccessTypes.DATA */:
                            return data[key];
                        case 4 /* AccessTypes.CONTEXT */:
                            return ctx[key];
                        case 3 /* AccessTypes.PROPS */:
                            return props[key];
                        // default: just fallthrough
                    }
                }
                else if (hasSetupBinding(setupState, key)) {
                    accessCache[key] = 1 /* AccessTypes.SETUP */;
                    return setupState[key];
                }
                else if (data !== EMPTY_OBJ && hasOwn(data, key)) {
                    accessCache[key] = 2 /* AccessTypes.DATA */;
                    return data[key];
                }
                else if (
                // only cache other properties when instance has declared (thus stable)
                // props
                (normalizedProps = instance.propsOptions[0]) &&
                    hasOwn(normalizedProps, key)) {
                    accessCache[key] = 3 /* AccessTypes.PROPS */;
                    return props[key];
                }
                else if (ctx !== EMPTY_OBJ && hasOwn(ctx, key)) {
                    accessCache[key] = 4 /* AccessTypes.CONTEXT */;
                    return ctx[key];
                }
                else if (shouldCacheAccess) {
                    accessCache[key] = 0 /* AccessTypes.OTHER */;
                }
            }
            const publicGetter = publicPropertiesMap[key];
            let cssModule, globalProperties;
            // public $xxx properties
            if (publicGetter) {
                if (key === '$attrs') {
                    track(instance, "get" /* TrackOpTypes.GET */, key);
                    markAttrsAccessed();
                }
                return publicGetter(instance);
            }
            else if (
            // css module (injected by vue-loader)
            (cssModule = type.__cssModules) &&
                (cssModule = cssModule[key])) {
                return cssModule;
            }
            else if (ctx !== EMPTY_OBJ && hasOwn(ctx, key)) {
                // user may set custom properties to `this` that start with `$`
                accessCache[key] = 4 /* AccessTypes.CONTEXT */;
                return ctx[key];
            }
            else if (
            // global properties
            ((globalProperties = appContext.config.globalProperties),
                hasOwn(globalProperties, key))) {
                {
                    return globalProperties[key];
                }
            }
            else if (currentRenderingInstance &&
                (!isString(key) ||
                    // #1091 avoid internal isRef/isVNode checks on component instance leading
                    // to infinite warning loop
                    key.indexOf('__v') !== 0)) {
                if (data !== EMPTY_OBJ && isReservedPrefix(key[0]) && hasOwn(data, key)) {
                    warn(`Property ${JSON.stringify(key)} must be accessed via $data because it starts with a reserved ` +
                        `character ("$" or "_") and is not proxied on the render context.`);
                }
                else if (instance === currentRenderingInstance) {
                    warn(`Property ${JSON.stringify(key)} was accessed during render ` +
                        `but is not defined on instance.`);
                }
            }
        },
        set({ _: instance }, key, value) {
            const { data, setupState, ctx } = instance;
            if (hasSetupBinding(setupState, key)) {
                setupState[key] = value;
                return true;
            }
            else if (setupState.__isScriptSetup &&
                hasOwn(setupState, key)) {
                warn(`Cannot mutate <script setup> binding "${key}" from Options API.`);
                return false;
            }
            else if (data !== EMPTY_OBJ && hasOwn(data, key)) {
                data[key] = value;
                return true;
            }
            else if (hasOwn(instance.props, key)) {
                warn(`Attempting to mutate prop "${key}". Props are readonly.`);
                return false;
            }
            if (key[0] === '$' && key.slice(1) in instance) {
                warn(`Attempting to mutate public property "${key}". ` +
                        `Properties starting with $ are reserved and readonly.`);
                return false;
            }
            else {
                if (key in instance.appContext.config.globalProperties) {
                    Object.defineProperty(ctx, key, {
                        enumerable: true,
                        configurable: true,
                        value
                    });
                }
                else {
                    ctx[key] = value;
                }
            }
            return true;
        },
        has({ _: { data, setupState, accessCache, ctx, appContext, propsOptions } }, key) {
            let normalizedProps;
            return (!!accessCache[key] ||
                (data !== EMPTY_OBJ && hasOwn(data, key)) ||
                hasSetupBinding(setupState, key) ||
                ((normalizedProps = propsOptions[0]) && hasOwn(normalizedProps, key)) ||
                hasOwn(ctx, key) ||
                hasOwn(publicPropertiesMap, key) ||
                hasOwn(appContext.config.globalProperties, key));
        },
        defineProperty(target, key, descriptor) {
            if (descriptor.get != null) {
                // invalidate key cache of a getter based property #5417
                target._.accessCache[key] = 0;
            }
            else if (hasOwn(descriptor, 'value')) {
                this.set(target, key, descriptor.value, null);
            }
            return Reflect.defineProperty(target, key, descriptor);
        }
    };
    {
        PublicInstanceProxyHandlers.ownKeys = (target) => {
            warn(`Avoid app logic that relies on enumerating keys on a component instance. ` +
                `The keys will be empty in production mode to avoid performance overhead.`);
            return Reflect.ownKeys(target);
        };
    }
    const RuntimeCompiledPublicInstanceProxyHandlers = /*#__PURE__*/ extend({}, PublicInstanceProxyHandlers, {
        get(target, key) {
            // fast path for unscopables when using `with` block
            if (key === Symbol.unscopables) {
                return;
            }
            return PublicInstanceProxyHandlers.get(target, key, target);
        },
        has(_, key) {
            const has = key[0] !== '_' && !isGloballyWhitelisted(key);
            if (!has && PublicInstanceProxyHandlers.has(_, key)) {
                warn(`Property ${JSON.stringify(key)} should not start with _ which is a reserved prefix for Vue internals.`);
            }
            return has;
        }
    });
    // dev only
    // In dev mode, the proxy target exposes the same properties as seen on `this`
    // for easier console inspection. In prod mode it will be an empty object so
    // these properties definitions can be skipped.
    function createDevRenderContext(instance) {
        const target = {};
        // expose internal instance for proxy handlers
        Object.defineProperty(target, `_`, {
            configurable: true,
            enumerable: false,
            get: () => instance
        });
        // expose public properties
        Object.keys(publicPropertiesMap).forEach(key => {
            Object.defineProperty(target, key, {
                configurable: true,
                enumerable: false,
                get: () => publicPropertiesMap[key](instance),
                // intercepted by the proxy so no need for implementation,
                // but needed to prevent set errors
                set: NOOP
            });
        });
        return target;
    }
    // dev only
    function exposePropsOnRenderContext(instance) {
        const { ctx, propsOptions: [propsOptions] } = instance;
        if (propsOptions) {
            Object.keys(propsOptions).forEach(key => {
                Object.defineProperty(ctx, key, {
                    enumerable: true,
                    configurable: true,
                    get: () => instance.props[key],
                    set: NOOP
                });
            });
        }
    }
    // dev only
    function exposeSetupStateOnRenderContext(instance) {
        const { ctx, setupState } = instance;
        Object.keys(toRaw(setupState)).forEach(key => {
            if (!setupState.__isScriptSetup) {
                if (isReservedPrefix(key[0])) {
                    warn(`setup() return property ${JSON.stringify(key)} should not start with "$" or "_" ` +
                        `which are reserved prefixes for Vue internals.`);
                    return;
                }
                Object.defineProperty(ctx, key, {
                    enumerable: true,
                    configurable: true,
                    get: () => setupState[key],
                    set: NOOP
                });
            }
        });
    }
  
    function createDuplicateChecker() {
        const cache = Object.create(null);
        return (type, key) => {
            if (cache[key]) {
                warn(`${type} property "${key}" is already defined in ${cache[key]}.`);
            }
            else {
                cache[key] = type;
            }
        };
    }
    let shouldCacheAccess = true;
    function applyOptions(instance) {
        const options = resolveMergedOptions(instance);
        const publicThis = instance.proxy;
        const ctx = instance.ctx;
        // do not cache property access on public proxy during state initialization
        shouldCacheAccess = false;
        // call beforeCreate first before accessing other options since
        // the hook may mutate resolved options (#2791)
        if (options.beforeCreate) {
            callHook$1(options.beforeCreate, instance, "bc" /* LifecycleHooks.BEFORE_CREATE */);
        }
        const { 
        // state
        data: dataOptions, computed: computedOptions, methods, watch: watchOptions, provide: provideOptions, inject: injectOptions, 
        // lifecycle
        created, beforeMount, mounted, beforeUpdate, updated, activated, deactivated, beforeDestroy, beforeUnmount, destroyed, unmounted, render, renderTracked, renderTriggered, errorCaptured, serverPrefetch, 
        // public API
        expose, inheritAttrs, 
        // assets
        components, directives, filters } = options;
        const checkDuplicateProperties = createDuplicateChecker() ;
        {
            const [propsOptions] = instance.propsOptions;
            if (propsOptions) {
                for (const key in propsOptions) {
                    checkDuplicateProperties("Props" /* OptionTypes.PROPS */, key);
                }
            }
        }
        // options initialization order (to be consistent with Vue 2):
        // - props (already done outside of this function)
        // - inject
        // - methods
        // - data (deferred since it relies on `this` access)
        // - computed
        // - watch (deferred since it relies on `this` access)
        if (injectOptions) {
            resolveInjections(injectOptions, ctx, checkDuplicateProperties, instance.appContext.config.unwrapInjectedRef);
        }
        if (methods) {
            for (const key in methods) {
                const methodHandler = methods[key];
                if (isFunction(methodHandler)) {
                    // In dev mode, we use the `createRenderContext` function to define
                    // methods to the proxy target, and those are read-only but
                    // reconfigurable, so it needs to be redefined here
                    {
                        Object.defineProperty(ctx, key, {
                            value: methodHandler.bind(publicThis),
                            configurable: true,
                            enumerable: true,
                            writable: true
                        });
                    }
                    {
                        checkDuplicateProperties("Methods" /* OptionTypes.METHODS */, key);
                    }
                }
                else {
                    warn(`Method "${key}" has type "${typeof methodHandler}" in the component definition. ` +
                        `Did you reference the function correctly?`);
                }
            }
        }
        if (dataOptions) {
            if (!isFunction(dataOptions)) {
                warn(`The data option must be a function. ` +
                    `Plain object usage is no longer supported.`);
            }
            const data = dataOptions.call(publicThis, publicThis);
            if (isPromise(data)) {
                warn(`data() returned a Promise - note data() cannot be async; If you ` +
                    `intend to perform data fetching before component renders, use ` +
                    `async setup() + <Suspense>.`);
            }
            if (!isObject(data)) {
                warn(`data() should return an object.`);
            }
            else {
                instance.data = reactive(data);
                {
                    for (const key in data) {
                        checkDuplicateProperties("Data" /* OptionTypes.DATA */, key);
                        // expose data on ctx during dev
                        if (!isReservedPrefix(key[0])) {
                            Object.defineProperty(ctx, key, {
                                configurable: true,
                                enumerable: true,
                                get: () => data[key],
                                set: NOOP
                            });
                        }
                    }
                }
            }
        }
        // state initialization complete at this point - start caching access
        shouldCacheAccess = true;
        if (computedOptions) {
            for (const key in computedOptions) {
                const opt = computedOptions[key];
                const get = isFunction(opt)
                    ? opt.bind(publicThis, publicThis)
                    : isFunction(opt.get)
                        ? opt.get.bind(publicThis, publicThis)
                        : NOOP;
                if (get === NOOP) {
                    warn(`Computed property "${key}" has no getter.`);
                }
                const set = !isFunction(opt) && isFunction(opt.set)
                    ? opt.set.bind(publicThis)
                    : () => {
                            warn(`Write operation failed: computed property "${key}" is readonly.`);
                        }
                        ;
                const c = computed({
                    get,
                    set
                });
                Object.defineProperty(ctx, key, {
                    enumerable: true,
                    configurable: true,
                    get: () => c.value,
                    set: v => (c.value = v)
                });
                {
                    checkDuplicateProperties("Computed" /* OptionTypes.COMPUTED */, key);
                }
            }
        }
        if (watchOptions) {
            for (const key in watchOptions) {
                createWatcher(watchOptions[key], ctx, publicThis, key);
            }
        }
        if (provideOptions) {
            const provides = isFunction(provideOptions)
                ? provideOptions.call(publicThis)
                : provideOptions;
            Reflect.ownKeys(provides).forEach(key => {
                provide(key, provides[key]);
            });
        }
        if (created) {
            callHook$1(created, instance, "c" /* LifecycleHooks.CREATED */);
        }
        function registerLifecycleHook(register, hook) {
            if (isArray(hook)) {
                hook.forEach(_hook => register(_hook.bind(publicThis)));
            }
            else if (hook) {
                register(hook.bind(publicThis));
            }
        }
        registerLifecycleHook(onBeforeMount, beforeMount);
        registerLifecycleHook(onMounted, mounted);
        registerLifecycleHook(onBeforeUpdate, beforeUpdate);
        registerLifecycleHook(onUpdated, updated);
        registerLifecycleHook(onActivated, activated);
        registerLifecycleHook(onDeactivated, deactivated);
        registerLifecycleHook(onErrorCaptured, errorCaptured);
        registerLifecycleHook(onRenderTracked, renderTracked);
        registerLifecycleHook(onRenderTriggered, renderTriggered);
        registerLifecycleHook(onBeforeUnmount, beforeUnmount);
        registerLifecycleHook(onUnmounted, unmounted);
        registerLifecycleHook(onServerPrefetch, serverPrefetch);
        if (isArray(expose)) {
            if (expose.length) {
                const exposed = instance.exposed || (instance.exposed = {});
                expose.forEach(key => {
                    Object.defineProperty(exposed, key, {
                        get: () => publicThis[key],
                        set: val => (publicThis[key] = val)
                    });
                });
            }
            else if (!instance.exposed) {
                instance.exposed = {};
            }
        }
        // options that are handled when creating the instance but also need to be
        // applied from mixins
        if (render && instance.render === NOOP) {
            instance.render = render;
        }
        if (inheritAttrs != null) {
            instance.inheritAttrs = inheritAttrs;
        }
        // asset options.
        if (components)
            instance.components = components;
        if (directives)
            instance.directives = directives;
    }
    function resolveInjections(injectOptions, ctx, checkDuplicateProperties = NOOP, unwrapRef = false) {
        if (isArray(injectOptions)) {
            injectOptions = normalizeInject(injectOptions);
        }
        for (const key in injectOptions) {
            const opt = injectOptions[key];
            let injected;
            if (isObject(opt)) {
                if ('default' in opt) {
                    injected = inject(opt.from || key, opt.default, true /* treat default function as factory */);
                }
                else {
                    injected = inject(opt.from || key);
                }
            }
            else {
                injected = inject(opt);
            }
            if (isRef(injected)) {
                // TODO remove the check in 3.3
                if (unwrapRef) {
                    Object.defineProperty(ctx, key, {
                        enumerable: true,
                        configurable: true,
                        get: () => injected.value,
                        set: v => (injected.value = v)
                    });
                }
                else {
                    {
                        warn(`injected property "${key}" is a ref and will be auto-unwrapped ` +
                            `and no longer needs \`.value\` in the next minor release. ` +
                            `To opt-in to the new behavior now, ` +
                            `set \`app.config.unwrapInjectedRef = true\` (this config is ` +
                            `temporary and will not be needed in the future.)`);
                    }
                    ctx[key] = injected;
                }
            }
            else {
                ctx[key] = injected;
            }
            {
                checkDuplicateProperties("Inject" /* OptionTypes.INJECT */, key);
            }
        }
    }
    function callHook$1(hook, instance, type) {
        callWithAsyncErrorHandling(isArray(hook)
            ? hook.map(h => h.bind(instance.proxy))
            : hook.bind(instance.proxy), instance, type);
    }
    function createWatcher(raw, ctx, publicThis, key) {
        const getter = key.includes('.')
            ? createPathGetter(publicThis, key)
            : () => publicThis[key];
        if (isString(raw)) {
            const handler = ctx[raw];
            if (isFunction(handler)) {
                watch(getter, handler);
            }
            else {
                warn(`Invalid watch handler specified by key "${raw}"`, handler);
            }
        }
        else if (isFunction(raw)) {
            watch(getter, raw.bind(publicThis));
        }
        else if (isObject(raw)) {
            if (isArray(raw)) {
                raw.forEach(r => createWatcher(r, ctx, publicThis, key));
            }
            else {
                const handler = isFunction(raw.handler)
                    ? raw.handler.bind(publicThis)
                    : ctx[raw.handler];
                if (isFunction(handler)) {
                    watch(getter, handler, raw);
                }
                else {
                    warn(`Invalid watch handler specified by key "${raw.handler}"`, handler);
                }
            }
        }
        else {
            warn(`Invalid watch option: "${key}"`, raw);
        }
    }
    /**
     * Resolve merged options and cache it on the component.
     * This is done only once per-component since the merging does not involve
     * instances.
     */
    function resolveMergedOptions(instance) {
        const base = instance.type;
        const { mixins, extends: extendsOptions } = base;
        const { mixins: globalMixins, optionsCache: cache, config: { optionMergeStrategies } } = instance.appContext;
        const cached = cache.get(base);
        let resolved;
        if (cached) {
            resolved = cached;
        }
        else if (!globalMixins.length && !mixins && !extendsOptions) {
            {
                resolved = base;
            }
        }
        else {
            resolved = {};
            if (globalMixins.length) {
                globalMixins.forEach(m => mergeOptions(resolved, m, optionMergeStrategies, true));
            }
            mergeOptions(resolved, base, optionMergeStrategies);
        }
        if (isObject(base)) {
            cache.set(base, resolved);
        }
        return resolved;
    }
    function mergeOptions(to, from, strats, asMixin = false) {
        const { mixins, extends: extendsOptions } = from;
        if (extendsOptions) {
            mergeOptions(to, extendsOptions, strats, true);
        }
        if (mixins) {
            mixins.forEach((m) => mergeOptions(to, m, strats, true));
        }
        for (const key in from) {
            if (asMixin && key === 'expose') {
                warn(`"expose" option is ignored when declared in mixins or extends. ` +
                        `It should only be declared in the base component itself.`);
            }
            else {
                const strat = internalOptionMergeStrats[key] || (strats && strats[key]);
                to[key] = strat ? strat(to[key], from[key]) : from[key];
            }
        }
        return to;
    }
    const internalOptionMergeStrats = {
        data: mergeDataFn,
        props: mergeObjectOptions,
        emits: mergeObjectOptions,
        // objects
        methods: mergeObjectOptions,
        computed: mergeObjectOptions,
        // lifecycle
        beforeCreate: mergeAsArray$1,
        created: mergeAsArray$1,
        beforeMount: mergeAsArray$1,
        mounted: mergeAsArray$1,
        beforeUpdate: mergeAsArray$1,
        updated: mergeAsArray$1,
        beforeDestroy: mergeAsArray$1,
        beforeUnmount: mergeAsArray$1,
        destroyed: mergeAsArray$1,
        unmounted: mergeAsArray$1,
        activated: mergeAsArray$1,
        deactivated: mergeAsArray$1,
        errorCaptured: mergeAsArray$1,
        serverPrefetch: mergeAsArray$1,
        // assets
        components: mergeObjectOptions,
        directives: mergeObjectOptions,
        // watch
        watch: mergeWatchOptions,
        // provide / inject
        provide: mergeDataFn,
        inject: mergeInject
    };
    function mergeDataFn(to, from) {
        if (!from) {
            return to;
        }
        if (!to) {
            return from;
        }
        return function mergedDataFn() {
            return (extend)(isFunction(to) ? to.call(this, this) : to, isFunction(from) ? from.call(this, this) : from);
        };
    }
    function mergeInject(to, from) {
        return mergeObjectOptions(normalizeInject(to), normalizeInject(from));
    }
    function normalizeInject(raw) {
        if (isArray(raw)) {
            const res = {};
            for (let i = 0; i < raw.length; i++) {
                res[raw[i]] = raw[i];
            }
            return res;
        }
        return raw;
    }
    function mergeAsArray$1(to, from) {
        return to ? [...new Set([].concat(to, from))] : from;
    }
    function mergeObjectOptions(to, from) {
        return to ? extend(extend(Object.create(null), to), from) : from;
    }
    function mergeWatchOptions(to, from) {
        if (!to)
            return from;
        if (!from)
            return to;
        const merged = extend(Object.create(null), to);
        for (const key in from) {
            merged[key] = mergeAsArray$1(to[key], from[key]);
        }
        return merged;
    }
  
    function initProps(instance, rawProps, isStateful, // result of bitwise flag comparison
    isSSR = false) {
        const props = {};
        const attrs = {};
        def(attrs, InternalObjectKey, 1);
        instance.propsDefaults = Object.create(null);
        setFullProps(instance, rawProps, props, attrs);
        // ensure all declared prop keys are present
        for (const key in instance.propsOptions[0]) {
            if (!(key in props)) {
                props[key] = undefined;
            }
        }
        // validation
        {
            validateProps(rawProps || {}, props, instance);
        }
        if (isStateful) {
            // stateful
            instance.props = isSSR ? props : shallowReactive(props);
        }
        else {
            if (!instance.type.props) {
                // functional w/ optional props, props === attrs
                instance.props = attrs;
            }
            else {
                // functional w/ declared props
                instance.props = props;
            }
        }
        instance.attrs = attrs;
    }
    function isInHmrContext(instance) {
        while (instance) {
            if (instance.type.__hmrId)
                return true;
            instance = instance.parent;
        }
    }
    function updateProps(instance, rawProps, rawPrevProps, optimized) {
        const { props, attrs, vnode: { patchFlag } } = instance;
        const rawCurrentProps = toRaw(props);
        const [options] = instance.propsOptions;
        let hasAttrsChanged = false;
        if (
        // always force full diff in dev
        // - #1942 if hmr is enabled with sfc component
        // - vite#872 non-sfc component used by sfc component
        !(isInHmrContext(instance)) &&
            (optimized || patchFlag > 0) &&
            !(patchFlag & 16 /* PatchFlags.FULL_PROPS */)) {
            if (patchFlag & 8 /* PatchFlags.PROPS */) {
                // Compiler-generated props & no keys change, just set the updated
                // the props.
                const propsToUpdate = instance.vnode.dynamicProps;
                for (let i = 0; i < propsToUpdate.length; i++) {
                    let key = propsToUpdate[i];
                    // skip if the prop key is a declared emit event listener
                    if (isEmitListener(instance.emitsOptions, key)) {
                        continue;
                    }
                    // PROPS flag guarantees rawProps to be non-null
                    const value = rawProps[key];
                    if (options) {
                        // attr / props separation was done on init and will be consistent
                        // in this code path, so just check if attrs have it.
                        if (hasOwn(attrs, key)) {
                            if (value !== attrs[key]) {
                                attrs[key] = value;
                                hasAttrsChanged = true;
                            }
                        }
                        else {
                            const camelizedKey = camelize(key);
                            props[camelizedKey] = resolvePropValue(options, rawCurrentProps, camelizedKey, value, instance, false /* isAbsent */);
                        }
                    }
                    else {
                        if (value !== attrs[key]) {
                            attrs[key] = value;
                            hasAttrsChanged = true;
                        }
                    }
                }
            }
        }
        else {
            // full props update.
            if (setFullProps(instance, rawProps, props, attrs)) {
                hasAttrsChanged = true;
            }
            // in case of dynamic props, check if we need to delete keys from
            // the props object
            let kebabKey;
            for (const key in rawCurrentProps) {
                if (!rawProps ||
                    // for camelCase
                    (!hasOwn(rawProps, key) &&
                        // it's possible the original props was passed in as kebab-case
                        // and converted to camelCase (#955)
                        ((kebabKey = hyphenate(key)) === key || !hasOwn(rawProps, kebabKey)))) {
                    if (options) {
                        if (rawPrevProps &&
                            // for camelCase
                            (rawPrevProps[key] !== undefined ||
                                // for kebab-case
                                rawPrevProps[kebabKey] !== undefined)) {
                            props[key] = resolvePropValue(options, rawCurrentProps, key, undefined, instance, true /* isAbsent */);
                        }
                    }
                    else {
                        delete props[key];
                    }
                }
            }
            // in the case of functional component w/o props declaration, props and
            // attrs point to the same object so it should already have been updated.
            if (attrs !== rawCurrentProps) {
                for (const key in attrs) {
                    if (!rawProps ||
                        (!hasOwn(rawProps, key) &&
                            (!false ))) {
                        delete attrs[key];
                        hasAttrsChanged = true;
                    }
                }
            }
        }
        // trigger updates for $attrs in case it's used in component slots
        if (hasAttrsChanged) {
            trigger(instance, "set" /* TriggerOpTypes.SET */, '$attrs');
        }
        {
            validateProps(rawProps || {}, props, instance);
        }
    }
    function setFullProps(instance, rawProps, props, attrs) {
        const [options, needCastKeys] = instance.propsOptions;
        let hasAttrsChanged = false;
        let rawCastValues;
        if (rawProps) {
            for (let key in rawProps) {
                // key, ref are reserved and never passed down
                if (isReservedProp(key)) {
                    continue;
                }
                const value = rawProps[key];
                // prop option names are camelized during normalization, so to support
                // kebab -> camel conversion here we need to camelize the key.
                let camelKey;
                if (options && hasOwn(options, (camelKey = camelize(key)))) {
                    if (!needCastKeys || !needCastKeys.includes(camelKey)) {
                        props[camelKey] = value;
                    }
                    else {
                        (rawCastValues || (rawCastValues = {}))[camelKey] = value;
                    }
                }
                else if (!isEmitListener(instance.emitsOptions, key)) {
                    if (!(key in attrs) || value !== attrs[key]) {
                        attrs[key] = value;
                        hasAttrsChanged = true;
                    }
                }
            }
        }
        if (needCastKeys) {
            const rawCurrentProps = toRaw(props);
            const castValues = rawCastValues || EMPTY_OBJ;
            for (let i = 0; i < needCastKeys.length; i++) {
                const key = needCastKeys[i];
                props[key] = resolvePropValue(options, rawCurrentProps, key, castValues[key], instance, !hasOwn(castValues, key));
            }
        }
        return hasAttrsChanged;
    }
    function resolvePropValue(options, props, key, value, instance, isAbsent) {
        const opt = options[key];
        if (opt != null) {
            const hasDefault = hasOwn(opt, 'default');
            // default values
            if (hasDefault && value === undefined) {
                const defaultValue = opt.default;
                if (opt.type !== Function && isFunction(defaultValue)) {
                    const { propsDefaults } = instance;
                    if (key in propsDefaults) {
                        value = propsDefaults[key];
                    }
                    else {
                        setCurrentInstance(instance);
                        value = propsDefaults[key] = defaultValue.call(null, props);
                        unsetCurrentInstance();
                    }
                }
                else {
                    value = defaultValue;
                }
            }
            // boolean casting
            if (opt[0 /* BooleanFlags.shouldCast */]) {
                if (isAbsent && !hasDefault) {
                    value = false;
                }
                else if (opt[1 /* BooleanFlags.shouldCastTrue */] &&
                    (value === '' || value === hyphenate(key))) {
                    value = true;
                }
            }
        }
        return value;
    }
    function normalizePropsOptions(comp, appContext, asMixin = false) {
        const cache = appContext.propsCache;
        const cached = cache.get(comp);
        if (cached) {
            return cached;
        }
        const raw = comp.props;
        const normalized = {};
        const needCastKeys = [];
        // apply mixin/extends props
        let hasExtends = false;
        if (!isFunction(comp)) {
            const extendProps = (raw) => {
                hasExtends = true;
                const [props, keys] = normalizePropsOptions(raw, appContext, true);
                extend(normalized, props);
                if (keys)
                    needCastKeys.push(...keys);
            };
            if (!asMixin && appContext.mixins.length) {
                appContext.mixins.forEach(extendProps);
            }
            if (comp.extends) {
                extendProps(comp.extends);
            }
            if (comp.mixins) {
                comp.mixins.forEach(extendProps);
            }
        }
        if (!raw && !hasExtends) {
            if (isObject(comp)) {
                cache.set(comp, EMPTY_ARR);
            }
            return EMPTY_ARR;
        }
        if (isArray(raw)) {
            for (let i = 0; i < raw.length; i++) {
                if (!isString(raw[i])) {
                    warn(`props must be strings when using array syntax.`, raw[i]);
                }
                const normalizedKey = camelize(raw[i]);
                if (validatePropName(normalizedKey)) {
                    normalized[normalizedKey] = EMPTY_OBJ;
                }
            }
        }
        else if (raw) {
            if (!isObject(raw)) {
                warn(`invalid props options`, raw);
            }
            for (const key in raw) {
                const normalizedKey = camelize(key);
                if (validatePropName(normalizedKey)) {
                    const opt = raw[key];
                    const prop = (normalized[normalizedKey] =
                        isArray(opt) || isFunction(opt) ? { type: opt } : Object.assign({}, opt));
                    if (prop) {
                        const booleanIndex = getTypeIndex(Boolean, prop.type);
                        const stringIndex = getTypeIndex(String, prop.type);
                        prop[0 /* BooleanFlags.shouldCast */] = booleanIndex > -1;
                        prop[1 /* BooleanFlags.shouldCastTrue */] =
                            stringIndex < 0 || booleanIndex < stringIndex;
                        // if the prop needs boolean casting or default value
                        if (booleanIndex > -1 || hasOwn(prop, 'default')) {
                            needCastKeys.push(normalizedKey);
                        }
                    }
                }
            }
        }
        const res = [normalized, needCastKeys];
        if (isObject(comp)) {
            cache.set(comp, res);
        }
        return res;
    }
    function validatePropName(key) {
        if (key[0] !== '$') {
            return true;
        }
        else {
            warn(`Invalid prop name: "${key}" is a reserved property.`);
        }
        return false;
    }
    // use function string name to check type constructors
    // so that it works across vms / iframes.
    function getType(ctor) {
        const match = ctor && ctor.toString().match(/^\s*(function|class) (\w+)/);
        return match ? match[2] : ctor === null ? 'null' : '';
    }
    function isSameType(a, b) {
        return getType(a) === getType(b);
    }
    function getTypeIndex(type, expectedTypes) {
        if (isArray(expectedTypes)) {
            return expectedTypes.findIndex(t => isSameType(t, type));
        }
        else if (isFunction(expectedTypes)) {
            return isSameType(expectedTypes, type) ? 0 : -1;
        }
        return -1;
    }
    /**
     * dev only
     */
    function validateProps(rawProps, props, instance) {
        const resolvedValues = toRaw(props);
        const options = instance.propsOptions[0];
        for (const key in options) {
            let opt = options[key];
            if (opt == null)
                continue;
            validateProp(key, resolvedValues[key], opt, !hasOwn(rawProps, key) && !hasOwn(rawProps, hyphenate(key)));
        }
    }
    /**
     * dev only
     */
    function validateProp(name, value, prop, isAbsent) {
        const { type, required, validator } = prop;
        // required!
        if (required && isAbsent) {
            warn('Missing required prop: "' + name + '"');
            return;
        }
        // missing but optional
        if (value == null && !prop.required) {
            return;
        }
        // type check
        if (type != null && type !== true) {
            let isValid = false;
            const types = isArray(type) ? type : [type];
            const expectedTypes = [];
            // value is valid as long as one of the specified types match
            for (let i = 0; i < types.length && !isValid; i++) {
                const { valid, expectedType } = assertType(value, types[i]);
                expectedTypes.push(expectedType || '');
                isValid = valid;
            }
            if (!isValid) {
                warn(getInvalidTypeMessage(name, value, expectedTypes));
                return;
            }
        }
        // custom validator
        if (validator && !validator(value)) {
            warn('Invalid prop: custom validator check failed for prop "' + name + '".');
        }
    }
    const isSimpleType = /*#__PURE__*/ makeMap('String,Number,Boolean,Function,Symbol,BigInt');
    /**
     * dev only
     */
    function assertType(value, type) {
        let valid;
        const expectedType = getType(type);
        if (isSimpleType(expectedType)) {
            const t = typeof value;
            valid = t === expectedType.toLowerCase();
            // for primitive wrapper objects
            if (!valid && t === 'object') {
                valid = value instanceof type;
            }
        }
        else if (expectedType === 'Object') {
            valid = isObject(value);
        }
        else if (expectedType === 'Array') {
            valid = isArray(value);
        }
        else if (expectedType === 'null') {
            valid = value === null;
        }
        else {
            valid = value instanceof type;
        }
        return {
            valid,
            expectedType
        };
    }
    /**
     * dev only
     */
    function getInvalidTypeMessage(name, value, expectedTypes) {
        let message = `Invalid prop: type check failed for prop "${name}".` +
            ` Expected ${expectedTypes.map(capitalize).join(' | ')}`;
        const expectedType = expectedTypes[0];
        const receivedType = toRawType(value);
        const expectedValue = styleValue(value, expectedType);
        const receivedValue = styleValue(value, receivedType);
        // check if we need to specify expected value
        if (expectedTypes.length === 1 &&
            isExplicable(expectedType) &&
            !isBoolean(expectedType, receivedType)) {
            message += ` with value ${expectedValue}`;
        }
        message += `, got ${receivedType} `;
        // check if we need to specify received value
        if (isExplicable(receivedType)) {
            message += `with value ${receivedValue}.`;
        }
        return message;
    }
    /**
     * dev only
     */
    function styleValue(value, type) {
        if (type === 'String') {
            return `"${value}"`;
        }
        else if (type === 'Number') {
            return `${Number(value)}`;
        }
        else {
            return `${value}`;
        }
    }
    /**
     * dev only
     */
    function isExplicable(type) {
        const explicitTypes = ['string', 'number', 'boolean'];
        return explicitTypes.some(elem => type.toLowerCase() === elem);
    }
    /**
     * dev only
     */
    function isBoolean(...args) {
        return args.some(elem => elem.toLowerCase() === 'boolean');
    }
  
    const isInternalKey = (key) => key[0] === '_' || key === '$stable';
    const normalizeSlotValue = (value) => isArray(value)
        ? value.map(normalizeVNode)
        : [normalizeVNode(value)];
    const normalizeSlot = (key, rawSlot, ctx) => {
        if (rawSlot._n) {
            // already normalized - #5353
            return rawSlot;
        }
        const normalized = withCtx((...args) => {
            if (true && currentInstance) {
                warn(`Slot "${key}" invoked outside of the render function: ` +
                    `this will not track dependencies used in the slot. ` +
                    `Invoke the slot function inside the render function instead.`);
            }
            return normalizeSlotValue(rawSlot(...args));
        }, ctx);
        normalized._c = false;
        return normalized;
    };
    const normalizeObjectSlots = (rawSlots, slots, instance) => {
        const ctx = rawSlots._ctx;
        for (const key in rawSlots) {
            if (isInternalKey(key))
                continue;
            const value = rawSlots[key];
            if (isFunction(value)) {
                slots[key] = normalizeSlot(key, value, ctx);
            }
            else if (value != null) {
                {
                    warn(`Non-function value encountered for slot "${key}". ` +
                        `Prefer function slots for better performance.`);
                }
                const normalized = normalizeSlotValue(value);
                slots[key] = () => normalized;
            }
        }
    };
    const normalizeVNodeSlots = (instance, children) => {
        if (!isKeepAlive(instance.vnode) &&
            !(false )) {
            warn(`Non-function value encountered for default slot. ` +
                `Prefer function slots for better performance.`);
        }
        const normalized = normalizeSlotValue(children);
        instance.slots.default = () => normalized;
    };
    const initSlots = (instance, children) => {
        if (instance.vnode.shapeFlag & 32 /* ShapeFlags.SLOTS_CHILDREN */) {
            const type = children._;
            if (type) {
                // users can get the shallow readonly version of the slots object through `this.$slots`,
                // we should avoid the proxy object polluting the slots of the internal instance
                instance.slots = toRaw(children);
                // make compiler marker non-enumerable
                def(children, '_', type);
            }
            else {
                normalizeObjectSlots(children, (instance.slots = {}));
            }
        }
        else {
            instance.slots = {};
            if (children) {
                normalizeVNodeSlots(instance, children);
            }
        }
        def(instance.slots, InternalObjectKey, 1);
    };
    const updateSlots = (instance, children, optimized) => {
        const { vnode, slots } = instance;
        let needDeletionCheck = true;
        let deletionComparisonTarget = EMPTY_OBJ;
        if (vnode.shapeFlag & 32 /* ShapeFlags.SLOTS_CHILDREN */) {
            const type = children._;
            if (type) {
                // compiled slots.
                if (isHmrUpdating) {
                    // Parent was HMR updated so slot content may have changed.
                    // force update slots and mark instance for hmr as well
                    extend(slots, children);
                }
                else if (optimized && type === 1 /* SlotFlags.STABLE */) {
                    // compiled AND stable.
                    // no need to update, and skip stale slots removal.
                    needDeletionCheck = false;
                }
                else {
                    // compiled but dynamic (v-if/v-for on slots) - update slots, but skip
                    // normalization.
                    extend(slots, children);
                    // #2893
                    // when rendering the optimized slots by manually written render function,
                    // we need to delete the `slots._` flag if necessary to make subsequent updates reliable,
                    // i.e. let the `renderSlot` create the bailed Fragment
                    if (!optimized && type === 1 /* SlotFlags.STABLE */) {
                        delete slots._;
                    }
                }
            }
            else {
                needDeletionCheck = !children.$stable;
                normalizeObjectSlots(children, slots);
            }
            deletionComparisonTarget = children;
        }
        else if (children) {
            // non slot object children (direct value) passed to a component
            normalizeVNodeSlots(instance, children);
            deletionComparisonTarget = { default: 1 };
        }
        // delete stale slots
        if (needDeletionCheck) {
            for (const key in slots) {
                if (!isInternalKey(key) && !(key in deletionComparisonTarget)) {
                    delete slots[key];
                }
            }
        }
    };
  
    function createAppContext() {
        return {
            app: null,
            config: {
                isNativeTag: NO,
                performance: false,
                globalProperties: {},
                optionMergeStrategies: {},
                errorHandler: undefined,
                warnHandler: undefined,
                compilerOptions: {}
            },
            mixins: [],
            components: {},
            directives: {},
            provides: Object.create(null),
            optionsCache: new WeakMap(),
            propsCache: new WeakMap(),
            emitsCache: new WeakMap()
        };
    }
    let uid$1 = 0;
    function createAppAPI(render, hydrate) {
        return function createApp(rootComponent, rootProps = null) {
            if (!isFunction(rootComponent)) {
                rootComponent = Object.assign({}, rootComponent);
            }
            if (rootProps != null && !isObject(rootProps)) {
                warn(`root props passed to app.mount() must be an object.`);
                rootProps = null;
            }
            const context = createAppContext();
            const installedPlugins = new Set();
            let isMounted = false;
            const app = (context.app = {
                _uid: uid$1++,
                _component: rootComponent,
                _props: rootProps,
                _container: null,
                _context: context,
                _instance: null,
                version,
                get config() {
                    return context.config;
                },
                set config(v) {
                    {
                        warn(`app.config cannot be replaced. Modify individual options instead.`);
                    }
                },
                use(plugin, ...options) {
                    if (installedPlugins.has(plugin)) {
                        warn(`Plugin has already been applied to target app.`);
                    }
                    else if (plugin && isFunction(plugin.install)) {
                        installedPlugins.add(plugin);
                        plugin.install(app, ...options);
                    }
                    else if (isFunction(plugin)) {
                        installedPlugins.add(plugin);
                        plugin(app, ...options);
                    }
                    else {
                        warn(`A plugin must either be a function or an object with an "install" ` +
                            `function.`);
                    }
                    return app;
                },
                mixin(mixin) {
                    {
                        if (!context.mixins.includes(mixin)) {
                            context.mixins.push(mixin);
                        }
                        else {
                            warn('Mixin has already been applied to target app' +
                                (mixin.name ? `: ${mixin.name}` : ''));
                        }
                    }
                    return app;
                },
                component(name, component) {
                    {
                        validateComponentName(name, context.config);
                    }
                    if (!component) {
                        return context.components[name];
                    }
                    if (context.components[name]) {
                        warn(`Component "${name}" has already been registered in target app.`);
                    }
                    context.components[name] = component;
                    return app;
                },
                directive(name, directive) {
                    {
                        validateDirectiveName(name);
                    }
                    if (!directive) {
                        return context.directives[name];
                    }
                    if (context.directives[name]) {
                        warn(`Directive "${name}" has already been registered in target app.`);
                    }
                    context.directives[name] = directive;
                    return app;
                },
                mount(rootContainer, isHydrate, isSVG) {
                    if (!isMounted) {
                        // #5571
                        if (rootContainer.__vue_app__) {
                            warn(`There is already an app instance mounted on the host container.\n` +
                                ` If you want to mount another app on the same host container,` +
                                ` you need to unmount the previous app by calling \`app.unmount()\` first.`);
                        }
                        const vnode = createVNode(rootComponent, rootProps);
                        // store app context on the root VNode.
                        // this will be set on the root instance on initial mount.
                        vnode.appContext = context;
                        // HMR root reload
                        {
                            context.reload = () => {
                                render(cloneVNode(vnode), rootContainer, isSVG);
                            };
                        }
                        if (isHydrate && hydrate) {
                            hydrate(vnode, rootContainer);
                        }
                        else {
                            render(vnode, rootContainer, isSVG);
                        }
                        isMounted = true;
                        app._container = rootContainer;
                        rootContainer.__vue_app__ = app;
                        {
                            app._instance = vnode.component;
                            devtoolsInitApp(app, version);
                        }
                        return getExposeProxy(vnode.component) || vnode.component.proxy;
                    }
                    else {
                        warn(`App has already been mounted.\n` +
                            `If you want to remount the same app, move your app creation logic ` +
                            `into a factory function and create fresh app instances for each ` +
                            `mount - e.g. \`const createMyApp = () => createApp(App)\``);
                    }
                },
                unmount() {
                    if (isMounted) {
                        render(null, app._container);
                        {
                            app._instance = null;
                            devtoolsUnmountApp(app);
                        }
                        delete app._container.__vue_app__;
                    }
                    else {
                        warn(`Cannot unmount an app that is not mounted.`);
                    }
                },
                provide(key, value) {
                    if (key in context.provides) {
                        warn(`App already provides property with key "${String(key)}". ` +
                            `It will be overwritten with the new value.`);
                    }
                    context.provides[key] = value;
                    return app;
                }
            });
            return app;
        };
    }
  
    /**
     * Function for handling a template ref
     */
    function setRef(rawRef, oldRawRef, parentSuspense, vnode, isUnmount = false) {
        if (isArray(rawRef)) {
            rawRef.forEach((r, i) => setRef(r, oldRawRef && (isArray(oldRawRef) ? oldRawRef[i] : oldRawRef), parentSuspense, vnode, isUnmount));
            return;
        }
        if (isAsyncWrapper(vnode) && !isUnmount) {
            // when mounting async components, nothing needs to be done,
            // because the template ref is forwarded to inner component
            return;
        }
        const refValue = vnode.shapeFlag & 4 /* ShapeFlags.STATEFUL_COMPONENT */
            ? getExposeProxy(vnode.component) || vnode.component.proxy
            : vnode.el;
        const value = isUnmount ? null : refValue;
        const { i: owner, r: ref } = rawRef;
        if (!owner) {
            warn(`Missing ref owner context. ref cannot be used on hoisted vnodes. ` +
                `A vnode with ref must be created inside the render function.`);
            return;
        }
        const oldRef = oldRawRef && oldRawRef.r;
        const refs = owner.refs === EMPTY_OBJ ? (owner.refs = {}) : owner.refs;
        const setupState = owner.setupState;
        // dynamic ref changed. unset old ref
        if (oldRef != null && oldRef !== ref) {
            if (isString(oldRef)) {
                refs[oldRef] = null;
                if (hasOwn(setupState, oldRef)) {
                    setupState[oldRef] = null;
                }
            }
            else if (isRef(oldRef)) {
                oldRef.value = null;
            }
        }
        if (isFunction(ref)) {
            callWithErrorHandling(ref, owner, 12 /* ErrorCodes.FUNCTION_REF */, [value, refs]);
        }
        else {
            const _isString = isString(ref);
            const _isRef = isRef(ref);
            if (_isString || _isRef) {
                const doSet = () => {
                    if (rawRef.f) {
                        const existing = _isString
                            ? hasOwn(setupState, ref)
                                ? setupState[ref]
                                : refs[ref]
                            : ref.value;
                        if (isUnmount) {
                            isArray(existing) && remove(existing, refValue);
                        }
                        else {
                            if (!isArray(existing)) {
                                if (_isString) {
                                    refs[ref] = [refValue];
                                    if (hasOwn(setupState, ref)) {
                                        setupState[ref] = refs[ref];
                                    }
                                }
                                else {
                                    ref.value = [refValue];
                                    if (rawRef.k)
                                        refs[rawRef.k] = ref.value;
                                }
                            }
                            else if (!existing.includes(refValue)) {
                                existing.push(refValue);
                            }
                        }
                    }
                    else if (_isString) {
                        refs[ref] = value;
                        if (hasOwn(setupState, ref)) {
                            setupState[ref] = value;
                        }
                    }
                    else if (_isRef) {
                        ref.value = value;
                        if (rawRef.k)
                            refs[rawRef.k] = value;
                    }
                    else {
                        warn('Invalid template ref type:', ref, `(${typeof ref})`);
                    }
                };
                if (value) {
                    doSet.id = -1;
                    queuePostRenderEffect(doSet, parentSuspense);
                }
                else {
                    doSet();
                }
            }
            else {
                warn('Invalid template ref type:', ref, `(${typeof ref})`);
            }
        }
    }
  
    let hasMismatch = false;
    const isSVGContainer = (container) => /svg/.test(container.namespaceURI) && container.tagName !== 'foreignObject';
    const isComment = (node) => node.nodeType === 8 /* DOMNodeTypes.COMMENT */;
    // Note: hydration is DOM-specific
    // But we have to place it in core due to tight coupling with core - splitting
    // it out creates a ton of unnecessary complexity.
    // Hydration also depends on some renderer internal logic which needs to be
    // passed in via arguments.
    function createHydrationFunctions(rendererInternals) {
        const { mt: mountComponent, p: patch, o: { patchProp, createText, nextSibling, parentNode, remove, insert, createComment } } = rendererInternals;
        const hydrate = (vnode, container) => {
            if (!container.hasChildNodes()) {
                warn(`Attempting to hydrate existing markup but container is empty. ` +
                        `Performing full mount instead.`);
                patch(null, vnode, container);
                flushPostFlushCbs();
                container._vnode = vnode;
                return;
            }
            hasMismatch = false;
            hydrateNode(container.firstChild, vnode, null, null, null);
            flushPostFlushCbs();
            container._vnode = vnode;
            if (hasMismatch && !false) {
                // this error should show up in production
                console.error(`Hydration completed but contains mismatches.`);
            }
        };
        const hydrateNode = (node, vnode, parentComponent, parentSuspense, slotScopeIds, optimized = false) => {
            const isFragmentStart = isComment(node) && node.data === '[';
            const onMismatch = () => handleMismatch(node, vnode, parentComponent, parentSuspense, slotScopeIds, isFragmentStart);
            const { type, ref, shapeFlag, patchFlag } = vnode;
            let domType = node.nodeType;
            vnode.el = node;
            if (patchFlag === -2 /* PatchFlags.BAIL */) {
                optimized = false;
                vnode.dynamicChildren = null;
            }
            let nextNode = null;
            switch (type) {
                case Text:
                    if (domType !== 3 /* DOMNodeTypes.TEXT */) {
                        // #5728 empty text node inside a slot can cause hydration failure
                        // because the server rendered HTML won't contain a text node
                        if (vnode.children === '') {
                            insert((vnode.el = createText('')), parentNode(node), node);
                            nextNode = node;
                        }
                        else {
                            nextNode = onMismatch();
                        }
                    }
                    else {
                        if (node.data !== vnode.children) {
                            hasMismatch = true;
                            warn(`Hydration text mismatch:` +
                                    `\n- Client: ${JSON.stringify(node.data)}` +
                                    `\n- Server: ${JSON.stringify(vnode.children)}`);
                            node.data = vnode.children;
                        }
                        nextNode = nextSibling(node);
                    }
                    break;
                case Comment:
                    if (domType !== 8 /* DOMNodeTypes.COMMENT */ || isFragmentStart) {
                        nextNode = onMismatch();
                    }
                    else {
                        nextNode = nextSibling(node);
                    }
                    break;
                case Static:
                    if (isFragmentStart) {
                        // entire template is static but SSRed as a fragment
                        node = nextSibling(node);
                        domType = node.nodeType;
                    }
                    if (domType === 1 /* DOMNodeTypes.ELEMENT */ || domType === 3 /* DOMNodeTypes.TEXT */) {
                        // determine anchor, adopt content
                        nextNode = node;
                        // if the static vnode has its content stripped during build,
                        // adopt it from the server-rendered HTML.
                        const needToAdoptContent = !vnode.children.length;
                        for (let i = 0; i < vnode.staticCount; i++) {
                            if (needToAdoptContent)
                                vnode.children +=
                                    nextNode.nodeType === 1 /* DOMNodeTypes.ELEMENT */
                                        ? nextNode.outerHTML
                                        : nextNode.data;
                            if (i === vnode.staticCount - 1) {
                                vnode.anchor = nextNode;
                            }
                            nextNode = nextSibling(nextNode);
                        }
                        return isFragmentStart ? nextSibling(nextNode) : nextNode;
                    }
                    else {
                        onMismatch();
                    }
                    break;
                case Fragment:
                    if (!isFragmentStart) {
                        nextNode = onMismatch();
                    }
                    else {
                        nextNode = hydrateFragment(node, vnode, parentComponent, parentSuspense, slotScopeIds, optimized);
                    }
                    break;
                default:
                    if (shapeFlag & 1 /* ShapeFlags.ELEMENT */) {
                        if (domType !== 1 /* DOMNodeTypes.ELEMENT */ ||
                            vnode.type.toLowerCase() !==
                                node.tagName.toLowerCase()) {
                            nextNode = onMismatch();
                        }
                        else {
                            nextNode = hydrateElement(node, vnode, parentComponent, parentSuspense, slotScopeIds, optimized);
                        }
                    }
                    else if (shapeFlag & 6 /* ShapeFlags.COMPONENT */) {
                        // when setting up the render effect, if the initial vnode already
                        // has .el set, the component will perform hydration instead of mount
                        // on its sub-tree.
                        vnode.slotScopeIds = slotScopeIds;
                        const container = parentNode(node);
                        mountComponent(vnode, container, null, parentComponent, parentSuspense, isSVGContainer(container), optimized);
                        // component may be async, so in the case of fragments we cannot rely
                        // on component's rendered output to determine the end of the fragment
                        // instead, we do a lookahead to find the end anchor node.
                        nextNode = isFragmentStart
                            ? locateClosingAsyncAnchor(node)
                            : nextSibling(node);
                        // #4293 teleport as component root
                        if (nextNode &&
                            isComment(nextNode) &&
                            nextNode.data === 'teleport end') {
                            nextNode = nextSibling(nextNode);
                        }
                        // #3787
                        // if component is async, it may get moved / unmounted before its
                        // inner component is loaded, so we need to give it a placeholder
                        // vnode that matches its adopted DOM.
                        if (isAsyncWrapper(vnode)) {
                            let subTree;
                            if (isFragmentStart) {
                                subTree = createVNode(Fragment);
                                subTree.anchor = nextNode
                                    ? nextNode.previousSibling
                                    : container.lastChild;
                            }
                            else {
                                subTree =
                                    node.nodeType === 3 ? createTextVNode('') : createVNode('div');
                            }
                            subTree.el = node;
                            vnode.component.subTree = subTree;
                        }
                    }
                    else if (shapeFlag & 64 /* ShapeFlags.TELEPORT */) {
                        if (domType !== 8 /* DOMNodeTypes.COMMENT */) {
                            nextNode = onMismatch();
                        }
                        else {
                            nextNode = vnode.type.hydrate(node, vnode, parentComponent, parentSuspense, slotScopeIds, optimized, rendererInternals, hydrateChildren);
                        }
                    }
                    else if (shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
                        nextNode = vnode.type.hydrate(node, vnode, parentComponent, parentSuspense, isSVGContainer(parentNode(node)), slotScopeIds, optimized, rendererInternals, hydrateNode);
                    }
                    else {
                        warn('Invalid HostVNode type:', type, `(${typeof type})`);
                    }
            }
            if (ref != null) {
                setRef(ref, null, parentSuspense, vnode);
            }
            return nextNode;
        };
        const hydrateElement = (el, vnode, parentComponent, parentSuspense, slotScopeIds, optimized) => {
            optimized = optimized || !!vnode.dynamicChildren;
            const { type, props, patchFlag, shapeFlag, dirs } = vnode;
            // #4006 for form elements with non-string v-model value bindings
            // e.g. <option :value="obj">, <input type="checkbox" :true-value="1">
            const forcePatchValue = (type === 'input' && dirs) || type === 'option';
            // skip props & children if this is hoisted static nodes
            // #5405 in dev, always hydrate children for HMR
            {
                if (dirs) {
                    invokeDirectiveHook(vnode, null, parentComponent, 'created');
                }
                // props
                if (props) {
                    if (forcePatchValue ||
                        !optimized ||
                        patchFlag & (16 /* PatchFlags.FULL_PROPS */ | 32 /* PatchFlags.HYDRATE_EVENTS */)) {
                        for (const key in props) {
                            if ((forcePatchValue && key.endsWith('value')) ||
                                (isOn(key) && !isReservedProp(key))) {
                                patchProp(el, key, null, props[key], false, undefined, parentComponent);
                            }
                        }
                    }
                    else if (props.onClick) {
                        // Fast path for click listeners (which is most often) to avoid
                        // iterating through props.
                        patchProp(el, 'onClick', null, props.onClick, false, undefined, parentComponent);
                    }
                }
                // vnode / directive hooks
                let vnodeHooks;
                if ((vnodeHooks = props && props.onVnodeBeforeMount)) {
                    invokeVNodeHook(vnodeHooks, parentComponent, vnode);
                }
                if (dirs) {
                    invokeDirectiveHook(vnode, null, parentComponent, 'beforeMount');
                }
                if ((vnodeHooks = props && props.onVnodeMounted) || dirs) {
                    queueEffectWithSuspense(() => {
                        vnodeHooks && invokeVNodeHook(vnodeHooks, parentComponent, vnode);
                        dirs && invokeDirectiveHook(vnode, null, parentComponent, 'mounted');
                    }, parentSuspense);
                }
                // children
                if (shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */ &&
                    // skip if element has innerHTML / textContent
                    !(props && (props.innerHTML || props.textContent))) {
                    let next = hydrateChildren(el.firstChild, vnode, el, parentComponent, parentSuspense, slotScopeIds, optimized);
                    let hasWarned = false;
                    while (next) {
                        hasMismatch = true;
                        if (!hasWarned) {
                            warn(`Hydration children mismatch in <${vnode.type}>: ` +
                                `server rendered element contains more child nodes than client vdom.`);
                            hasWarned = true;
                        }
                        // The SSRed DOM contains more nodes than it should. Remove them.
                        const cur = next;
                        next = next.nextSibling;
                        remove(cur);
                    }
                }
                else if (shapeFlag & 8 /* ShapeFlags.TEXT_CHILDREN */) {
                    if (el.textContent !== vnode.children) {
                        hasMismatch = true;
                        warn(`Hydration text content mismatch in <${vnode.type}>:\n` +
                                `- Client: ${el.textContent}\n` +
                                `- Server: ${vnode.children}`);
                        el.textContent = vnode.children;
                    }
                }
            }
            return el.nextSibling;
        };
        const hydrateChildren = (node, parentVNode, container, parentComponent, parentSuspense, slotScopeIds, optimized) => {
            optimized = optimized || !!parentVNode.dynamicChildren;
            const children = parentVNode.children;
            const l = children.length;
            let hasWarned = false;
            for (let i = 0; i < l; i++) {
                const vnode = optimized
                    ? children[i]
                    : (children[i] = normalizeVNode(children[i]));
                if (node) {
                    node = hydrateNode(node, vnode, parentComponent, parentSuspense, slotScopeIds, optimized);
                }
                else if (vnode.type === Text && !vnode.children) {
                    continue;
                }
                else {
                    hasMismatch = true;
                    if (!hasWarned) {
                        warn(`Hydration children mismatch in <${container.tagName.toLowerCase()}>: ` +
                            `server rendered element contains fewer child nodes than client vdom.`);
                        hasWarned = true;
                    }
                    // the SSRed DOM didn't contain enough nodes. Mount the missing ones.
                    patch(null, vnode, container, null, parentComponent, parentSuspense, isSVGContainer(container), slotScopeIds);
                }
            }
            return node;
        };
        const hydrateFragment = (node, vnode, parentComponent, parentSuspense, slotScopeIds, optimized) => {
            const { slotScopeIds: fragmentSlotScopeIds } = vnode;
            if (fragmentSlotScopeIds) {
                slotScopeIds = slotScopeIds
                    ? slotScopeIds.concat(fragmentSlotScopeIds)
                    : fragmentSlotScopeIds;
            }
            const container = parentNode(node);
            const next = hydrateChildren(nextSibling(node), vnode, container, parentComponent, parentSuspense, slotScopeIds, optimized);
            if (next && isComment(next) && next.data === ']') {
                return nextSibling((vnode.anchor = next));
            }
            else {
                // fragment didn't hydrate successfully, since we didn't get a end anchor
                // back. This should have led to node/children mismatch warnings.
                hasMismatch = true;
                // since the anchor is missing, we need to create one and insert it
                insert((vnode.anchor = createComment(`]`)), container, next);
                return next;
            }
        };
        const handleMismatch = (node, vnode, parentComponent, parentSuspense, slotScopeIds, isFragment) => {
            hasMismatch = true;
            warn(`Hydration node mismatch:\n- Client vnode:`, vnode.type, `\n- Server rendered DOM:`, node, node.nodeType === 3 /* DOMNodeTypes.TEXT */
                    ? `(text)`
                    : isComment(node) && node.data === '['
                        ? `(start of fragment)`
                        : ``);
            vnode.el = null;
            if (isFragment) {
                // remove excessive fragment nodes
                const end = locateClosingAsyncAnchor(node);
                while (true) {
                    const next = nextSibling(node);
                    if (next && next !== end) {
                        remove(next);
                    }
                    else {
                        break;
                    }
                }
            }
            const next = nextSibling(node);
            const container = parentNode(node);
            remove(node);
            patch(null, vnode, container, next, parentComponent, parentSuspense, isSVGContainer(container), slotScopeIds);
            return next;
        };
        const locateClosingAsyncAnchor = (node) => {
            let match = 0;
            while (node) {
                node = nextSibling(node);
                if (node && isComment(node)) {
                    if (node.data === '[')
                        match++;
                    if (node.data === ']') {
                        if (match === 0) {
                            return nextSibling(node);
                        }
                        else {
                            match--;
                        }
                    }
                }
            }
            return node;
        };
        return [hydrate, hydrateNode];
    }
  
    /* eslint-disable no-restricted-globals */
    let supported;
    let perf;
    function startMeasure(instance, type) {
        if (instance.appContext.config.performance && isSupported()) {
            perf.mark(`vue-${type}-${instance.uid}`);
        }
        {
            devtoolsPerfStart(instance, type, isSupported() ? perf.now() : Date.now());
        }
    }
    function endMeasure(instance, type) {
        if (instance.appContext.config.performance && isSupported()) {
            const startTag = `vue-${type}-${instance.uid}`;
            const endTag = startTag + `:end`;
            perf.mark(endTag);
            perf.measure(`<${formatComponentName(instance, instance.type)}> ${type}`, startTag, endTag);
            perf.clearMarks(startTag);
            perf.clearMarks(endTag);
        }
        {
            devtoolsPerfEnd(instance, type, isSupported() ? perf.now() : Date.now());
        }
    }
    function isSupported() {
        if (supported !== undefined) {
            return supported;
        }
        if (typeof window !== 'undefined' && window.performance) {
            supported = true;
            perf = window.performance;
        }
        else {
            supported = false;
        }
        return supported;
    }
  
    const queuePostRenderEffect = queueEffectWithSuspense
        ;
    /**
     * The createRenderer function accepts two generic arguments:
     * HostNode and HostElement, corresponding to Node and Element types in the
     * host environment. For example, for runtime-dom, HostNode would be the DOM
     * `Node` interface and HostElement would be the DOM `Element` interface.
     *
     * Custom renderers can pass in the platform specific types like this:
     *
     * ``` js
     * const { render, createApp } = createRenderer<Node, Element>({
     *   patchProp,
     *   ...nodeOps
     * })
     * ```
     */
    function createRenderer(options) {
        return baseCreateRenderer(options);
    }
    // Separate API for creating hydration-enabled renderer.
    // Hydration logic is only used when calling this function, making it
    // tree-shakable.
    function createHydrationRenderer(options) {
        return baseCreateRenderer(options, createHydrationFunctions);
    }
    // implementation
    function baseCreateRenderer(options, createHydrationFns) {
        const target = getGlobalThis();
        target.__VUE__ = true;
        {
            setDevtoolsHook(target.__VUE_DEVTOOLS_GLOBAL_HOOK__, target);
        }
        const { insert: hostInsert, remove: hostRemove, patchProp: hostPatchProp, createElement: hostCreateElement, createText: hostCreateText, createComment: hostCreateComment, setText: hostSetText, setElementText: hostSetElementText, parentNode: hostParentNode, nextSibling: hostNextSibling, setScopeId: hostSetScopeId = NOOP, insertStaticContent: hostInsertStaticContent } = options;
        // Note: functions inside this closure should use `const xxx = () => {}`
        // style in order to prevent being inlined by minifiers.
        const patch = (n1, n2, container, anchor = null, parentComponent = null, parentSuspense = null, isSVG = false, slotScopeIds = null, optimized = isHmrUpdating ? false : !!n2.dynamicChildren) => {
            if (n1 === n2) {
                return;
            }
            // patching & not same type, unmount old tree
            if (n1 && !isSameVNodeType(n1, n2)) {
                anchor = getNextHostNode(n1);
                unmount(n1, parentComponent, parentSuspense, true);
                n1 = null;
            }
            if (n2.patchFlag === -2 /* PatchFlags.BAIL */) {
                optimized = false;
                n2.dynamicChildren = null;
            }
            const { type, ref, shapeFlag } = n2;
            switch (type) {
                case Text:
                    processText(n1, n2, container, anchor);
                    break;
                case Comment:
                    processCommentNode(n1, n2, container, anchor);
                    break;
                case Static:
                    if (n1 == null) {
                        mountStaticNode(n2, container, anchor, isSVG);
                    }
                    else {
                        patchStaticNode(n1, n2, container, isSVG);
                    }
                    break;
                case Fragment:
                    processFragment(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                    break;
                default:
                    if (shapeFlag & 1 /* ShapeFlags.ELEMENT */) {
                        processElement(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                    }
                    else if (shapeFlag & 6 /* ShapeFlags.COMPONENT */) {
                        processComponent(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                    }
                    else if (shapeFlag & 64 /* ShapeFlags.TELEPORT */) {
                        type.process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, internals);
                    }
                    else if (shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
                        type.process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, internals);
                    }
                    else {
                        warn('Invalid VNode type:', type, `(${typeof type})`);
                    }
            }
            // set ref
            if (ref != null && parentComponent) {
                setRef(ref, n1 && n1.ref, parentSuspense, n2 || n1, !n2);
            }
        };
        const processText = (n1, n2, container, anchor) => {
            if (n1 == null) {
                hostInsert((n2.el = hostCreateText(n2.children)), container, anchor);
            }
            else {
                const el = (n2.el = n1.el);
                if (n2.children !== n1.children) {
                    hostSetText(el, n2.children);
                }
            }
        };
        const processCommentNode = (n1, n2, container, anchor) => {
            if (n1 == null) {
                hostInsert((n2.el = hostCreateComment(n2.children || '')), container, anchor);
            }
            else {
                // there's no support for dynamic comments
                n2.el = n1.el;
            }
        };
        const mountStaticNode = (n2, container, anchor, isSVG) => {
            [n2.el, n2.anchor] = hostInsertStaticContent(n2.children, container, anchor, isSVG, n2.el, n2.anchor);
        };
        /**
         * Dev / HMR only
         */
        const patchStaticNode = (n1, n2, container, isSVG) => {
            // static nodes are only patched during dev for HMR
            if (n2.children !== n1.children) {
                const anchor = hostNextSibling(n1.anchor);
                // remove existing
                removeStaticNode(n1);
                [n2.el, n2.anchor] = hostInsertStaticContent(n2.children, container, anchor, isSVG);
            }
            else {
                n2.el = n1.el;
                n2.anchor = n1.anchor;
            }
        };
        const moveStaticNode = ({ el, anchor }, container, nextSibling) => {
            let next;
            while (el && el !== anchor) {
                next = hostNextSibling(el);
                hostInsert(el, container, nextSibling);
                el = next;
            }
            hostInsert(anchor, container, nextSibling);
        };
        const removeStaticNode = ({ el, anchor }) => {
            let next;
            while (el && el !== anchor) {
                next = hostNextSibling(el);
                hostRemove(el);
                el = next;
            }
            hostRemove(anchor);
        };
        const processElement = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
            isSVG = isSVG || n2.type === 'svg';
            if (n1 == null) {
                mountElement(n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
            }
            else {
                patchElement(n1, n2, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
            }
        };
        const mountElement = (vnode, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
            let el;
            let vnodeHook;
            const { type, props, shapeFlag, transition, dirs } = vnode;
            el = vnode.el = hostCreateElement(vnode.type, isSVG, props && props.is, props);
            // mount children first, since some props may rely on child content
            // being already rendered, e.g. `<select value>`
            if (shapeFlag & 8 /* ShapeFlags.TEXT_CHILDREN */) {
                hostSetElementText(el, vnode.children);
            }
            else if (shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
                mountChildren(vnode.children, el, null, parentComponent, parentSuspense, isSVG && type !== 'foreignObject', slotScopeIds, optimized);
            }
            if (dirs) {
                invokeDirectiveHook(vnode, null, parentComponent, 'created');
            }
            // scopeId
            setScopeId(el, vnode, vnode.scopeId, slotScopeIds, parentComponent);
            // props
            if (props) {
                for (const key in props) {
                    if (key !== 'value' && !isReservedProp(key)) {
                        hostPatchProp(el, key, null, props[key], isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
                    }
                }
                /**
                 * Special case for setting value on DOM elements:
                 * - it can be order-sensitive (e.g. should be set *after* min/max, #2325, #4024)
                 * - it needs to be forced (#1471)
                 * #2353 proposes adding another renderer option to configure this, but
                 * the properties affects are so finite it is worth special casing it
                 * here to reduce the complexity. (Special casing it also should not
                 * affect non-DOM renderers)
                 */
                if ('value' in props) {
                    hostPatchProp(el, 'value', null, props.value);
                }
                if ((vnodeHook = props.onVnodeBeforeMount)) {
                    invokeVNodeHook(vnodeHook, parentComponent, vnode);
                }
            }
            {
                Object.defineProperty(el, '__vnode', {
                    value: vnode,
                    enumerable: false
                });
                Object.defineProperty(el, '__vueParentComponent', {
                    value: parentComponent,
                    enumerable: false
                });
            }
            if (dirs) {
                invokeDirectiveHook(vnode, null, parentComponent, 'beforeMount');
            }
            // #1583 For inside suspense + suspense not resolved case, enter hook should call when suspense resolved
            // #1689 For inside suspense + suspense resolved case, just call it
            const needCallTransitionHooks = (!parentSuspense || (parentSuspense && !parentSuspense.pendingBranch)) &&
                transition &&
                !transition.persisted;
            if (needCallTransitionHooks) {
                transition.beforeEnter(el);
            }
            hostInsert(el, container, anchor);
            if ((vnodeHook = props && props.onVnodeMounted) ||
                needCallTransitionHooks ||
                dirs) {
                queuePostRenderEffect(() => {
                    vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, vnode);
                    needCallTransitionHooks && transition.enter(el);
                    dirs && invokeDirectiveHook(vnode, null, parentComponent, 'mounted');
                }, parentSuspense);
            }
        };
        const setScopeId = (el, vnode, scopeId, slotScopeIds, parentComponent) => {
            if (scopeId) {
                hostSetScopeId(el, scopeId);
            }
            if (slotScopeIds) {
                for (let i = 0; i < slotScopeIds.length; i++) {
                    hostSetScopeId(el, slotScopeIds[i]);
                }
            }
            if (parentComponent) {
                let subTree = parentComponent.subTree;
                if (subTree.patchFlag > 0 &&
                    subTree.patchFlag & 2048 /* PatchFlags.DEV_ROOT_FRAGMENT */) {
                    subTree =
                        filterSingleRoot(subTree.children) || subTree;
                }
                if (vnode === subTree) {
                    const parentVNode = parentComponent.vnode;
                    setScopeId(el, parentVNode, parentVNode.scopeId, parentVNode.slotScopeIds, parentComponent.parent);
                }
            }
        };
        const mountChildren = (children, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, start = 0) => {
            for (let i = start; i < children.length; i++) {
                const child = (children[i] = optimized
                    ? cloneIfMounted(children[i])
                    : normalizeVNode(children[i]));
                patch(null, child, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
            }
        };
        const patchElement = (n1, n2, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
            const el = (n2.el = n1.el);
            let { patchFlag, dynamicChildren, dirs } = n2;
            // #1426 take the old vnode's patch flag into account since user may clone a
            // compiler-generated vnode, which de-opts to FULL_PROPS
            patchFlag |= n1.patchFlag & 16 /* PatchFlags.FULL_PROPS */;
            const oldProps = n1.props || EMPTY_OBJ;
            const newProps = n2.props || EMPTY_OBJ;
            let vnodeHook;
            // disable recurse in beforeUpdate hooks
            parentComponent && toggleRecurse(parentComponent, false);
            if ((vnodeHook = newProps.onVnodeBeforeUpdate)) {
                invokeVNodeHook(vnodeHook, parentComponent, n2, n1);
            }
            if (dirs) {
                invokeDirectiveHook(n2, n1, parentComponent, 'beforeUpdate');
            }
            parentComponent && toggleRecurse(parentComponent, true);
            if (isHmrUpdating) {
                // HMR updated, force full diff
                patchFlag = 0;
                optimized = false;
                dynamicChildren = null;
            }
            const areChildrenSVG = isSVG && n2.type !== 'foreignObject';
            if (dynamicChildren) {
                patchBlockChildren(n1.dynamicChildren, dynamicChildren, el, parentComponent, parentSuspense, areChildrenSVG, slotScopeIds);
                if (parentComponent && parentComponent.type.__hmrId) {
                    traverseStaticChildren(n1, n2);
                }
            }
            else if (!optimized) {
                // full diff
                patchChildren(n1, n2, el, null, parentComponent, parentSuspense, areChildrenSVG, slotScopeIds, false);
            }
            if (patchFlag > 0) {
                // the presence of a patchFlag means this element's render code was
                // generated by the compiler and can take the fast path.
                // in this path old node and new node are guaranteed to have the same shape
                // (i.e. at the exact same position in the source template)
                if (patchFlag & 16 /* PatchFlags.FULL_PROPS */) {
                    // element props contain dynamic keys, full diff needed
                    patchProps(el, n2, oldProps, newProps, parentComponent, parentSuspense, isSVG);
                }
                else {
                    // class
                    // this flag is matched when the element has dynamic class bindings.
                    if (patchFlag & 2 /* PatchFlags.CLASS */) {
                        if (oldProps.class !== newProps.class) {
                            hostPatchProp(el, 'class', null, newProps.class, isSVG);
                        }
                    }
                    // style
                    // this flag is matched when the element has dynamic style bindings
                    if (patchFlag & 4 /* PatchFlags.STYLE */) {
                        hostPatchProp(el, 'style', oldProps.style, newProps.style, isSVG);
                    }
                    // props
                    // This flag is matched when the element has dynamic prop/attr bindings
                    // other than class and style. The keys of dynamic prop/attrs are saved for
                    // faster iteration.
                    // Note dynamic keys like :[foo]="bar" will cause this optimization to
                    // bail out and go through a full diff because we need to unset the old key
                    if (patchFlag & 8 /* PatchFlags.PROPS */) {
                        // if the flag is present then dynamicProps must be non-null
                        const propsToUpdate = n2.dynamicProps;
                        for (let i = 0; i < propsToUpdate.length; i++) {
                            const key = propsToUpdate[i];
                            const prev = oldProps[key];
                            const next = newProps[key];
                            // #1471 force patch value
                            if (next !== prev || key === 'value') {
                                hostPatchProp(el, key, prev, next, isSVG, n1.children, parentComponent, parentSuspense, unmountChildren);
                            }
                        }
                    }
                }
                // text
                // This flag is matched when the element has only dynamic text children.
                if (patchFlag & 1 /* PatchFlags.TEXT */) {
                    if (n1.children !== n2.children) {
                        hostSetElementText(el, n2.children);
                    }
                }
            }
            else if (!optimized && dynamicChildren == null) {
                // unoptimized, full diff
                patchProps(el, n2, oldProps, newProps, parentComponent, parentSuspense, isSVG);
            }
            if ((vnodeHook = newProps.onVnodeUpdated) || dirs) {
                queuePostRenderEffect(() => {
                    vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, n2, n1);
                    dirs && invokeDirectiveHook(n2, n1, parentComponent, 'updated');
                }, parentSuspense);
            }
        };
        // The fast path for blocks.
        const patchBlockChildren = (oldChildren, newChildren, fallbackContainer, parentComponent, parentSuspense, isSVG, slotScopeIds) => {
            for (let i = 0; i < newChildren.length; i++) {
                const oldVNode = oldChildren[i];
                const newVNode = newChildren[i];
                // Determine the container (parent element) for the patch.
                const container = 
                // oldVNode may be an errored async setup() component inside Suspense
                // which will not have a mounted element
                oldVNode.el &&
                    // - In the case of a Fragment, we need to provide the actual parent
                    // of the Fragment itself so it can move its children.
                    (oldVNode.type === Fragment ||
                        // - In the case of different nodes, there is going to be a replacement
                        // which also requires the correct parent container
                        !isSameVNodeType(oldVNode, newVNode) ||
                        // - In the case of a component, it could contain anything.
                        oldVNode.shapeFlag & (6 /* ShapeFlags.COMPONENT */ | 64 /* ShapeFlags.TELEPORT */))
                    ? hostParentNode(oldVNode.el)
                    : // In other cases, the parent container is not actually used so we
                        // just pass the block element here to avoid a DOM parentNode call.
                        fallbackContainer;
                patch(oldVNode, newVNode, container, null, parentComponent, parentSuspense, isSVG, slotScopeIds, true);
            }
        };
        const patchProps = (el, vnode, oldProps, newProps, parentComponent, parentSuspense, isSVG) => {
            if (oldProps !== newProps) {
                if (oldProps !== EMPTY_OBJ) {
                    for (const key in oldProps) {
                        if (!isReservedProp(key) && !(key in newProps)) {
                            hostPatchProp(el, key, oldProps[key], null, isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
                        }
                    }
                }
                for (const key in newProps) {
                    // empty string is not valid prop
                    if (isReservedProp(key))
                        continue;
                    const next = newProps[key];
                    const prev = oldProps[key];
                    // defer patching value
                    if (next !== prev && key !== 'value') {
                        hostPatchProp(el, key, prev, next, isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
                    }
                }
                if ('value' in newProps) {
                    hostPatchProp(el, 'value', oldProps.value, newProps.value);
                }
            }
        };
        const processFragment = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
            const fragmentStartAnchor = (n2.el = n1 ? n1.el : hostCreateText(''));
            const fragmentEndAnchor = (n2.anchor = n1 ? n1.anchor : hostCreateText(''));
            let { patchFlag, dynamicChildren, slotScopeIds: fragmentSlotScopeIds } = n2;
            if (// #5523 dev root fragment may inherit directives
                (isHmrUpdating || patchFlag & 2048 /* PatchFlags.DEV_ROOT_FRAGMENT */)) {
                // HMR updated / Dev root fragment (w/ comments), force full diff
                patchFlag = 0;
                optimized = false;
                dynamicChildren = null;
            }
            // check if this is a slot fragment with :slotted scope ids
            if (fragmentSlotScopeIds) {
                slotScopeIds = slotScopeIds
                    ? slotScopeIds.concat(fragmentSlotScopeIds)
                    : fragmentSlotScopeIds;
            }
            if (n1 == null) {
                hostInsert(fragmentStartAnchor, container, anchor);
                hostInsert(fragmentEndAnchor, container, anchor);
                // a fragment can only have array children
                // since they are either generated by the compiler, or implicitly created
                // from arrays.
                mountChildren(n2.children, container, fragmentEndAnchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
            }
            else {
                if (patchFlag > 0 &&
                    patchFlag & 64 /* PatchFlags.STABLE_FRAGMENT */ &&
                    dynamicChildren &&
                    // #2715 the previous fragment could've been a BAILed one as a result
                    // of renderSlot() with no valid children
                    n1.dynamicChildren) {
                    // a stable fragment (template root or <template v-for>) doesn't need to
                    // patch children order, but it may contain dynamicChildren.
                    patchBlockChildren(n1.dynamicChildren, dynamicChildren, container, parentComponent, parentSuspense, isSVG, slotScopeIds);
                    if (parentComponent && parentComponent.type.__hmrId) {
                        traverseStaticChildren(n1, n2);
                    }
                    else if (
                    // #2080 if the stable fragment has a key, it's a <template v-for> that may
                    //  get moved around. Make sure all root level vnodes inherit el.
                    // #2134 or if it's a component root, it may also get moved around
                    // as the component is being moved.
                    n2.key != null ||
                        (parentComponent && n2 === parentComponent.subTree)) {
                        traverseStaticChildren(n1, n2, true /* shallow */);
                    }
                }
                else {
                    // keyed / unkeyed, or manual fragments.
                    // for keyed & unkeyed, since they are compiler generated from v-for,
                    // each child is guaranteed to be a block so the fragment will never
                    // have dynamicChildren.
                    patchChildren(n1, n2, container, fragmentEndAnchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                }
            }
        };
        const processComponent = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
            n2.slotScopeIds = slotScopeIds;
            if (n1 == null) {
                if (n2.shapeFlag & 512 /* ShapeFlags.COMPONENT_KEPT_ALIVE */) {
                    parentComponent.ctx.activate(n2, container, anchor, isSVG, optimized);
                }
                else {
                    mountComponent(n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
                }
            }
            else {
                updateComponent(n1, n2, optimized);
            }
        };
        const mountComponent = (initialVNode, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
            const instance = (initialVNode.component = createComponentInstance(initialVNode, parentComponent, parentSuspense));
            if (instance.type.__hmrId) {
                registerHMR(instance);
            }
            {
                pushWarningContext(initialVNode);
                startMeasure(instance, `mount`);
            }
            // inject renderer internals for keepAlive
            if (isKeepAlive(initialVNode)) {
                instance.ctx.renderer = internals;
            }
            // resolve props and slots for setup context
            {
                {
                    startMeasure(instance, `init`);
                }
                setupComponent(instance);
                {
                    endMeasure(instance, `init`);
                }
            }
            // setup() is async. This component relies on async logic to be resolved
            // before proceeding
            if (instance.asyncDep) {
                parentSuspense && parentSuspense.registerDep(instance, setupRenderEffect);
                // Give it a placeholder if this is not hydration
                // TODO handle self-defined fallback
                if (!initialVNode.el) {
                    const placeholder = (instance.subTree = createVNode(Comment));
                    processCommentNode(null, placeholder, container, anchor);
                }
                return;
            }
            setupRenderEffect(instance, initialVNode, container, anchor, parentSuspense, isSVG, optimized);
            {
                popWarningContext();
                endMeasure(instance, `mount`);
            }
        };
        const updateComponent = (n1, n2, optimized) => {
            const instance = (n2.component = n1.component);
            if (shouldUpdateComponent(n1, n2, optimized)) {
                if (instance.asyncDep &&
                    !instance.asyncResolved) {
                    // async & still pending - just update props and slots
                    // since the component's reactive effect for render isn't set-up yet
                    {
                        pushWarningContext(n2);
                    }
                    updateComponentPreRender(instance, n2, optimized);
                    {
                        popWarningContext();
                    }
                    return;
                }
                else {
                    // normal update
                    instance.next = n2;
                    // in case the child component is also queued, remove it to avoid
                    // double updating the same child component in the same flush.
                    invalidateJob(instance.update);
                    // instance.update is the reactive effect.
                    instance.update();
                }
            }
            else {
                // no update needed. just copy over properties
                n2.el = n1.el;
                instance.vnode = n2;
            }
        };
        const setupRenderEffect = (instance, initialVNode, container, anchor, parentSuspense, isSVG, optimized) => {
            const componentUpdateFn = () => {
                if (!instance.isMounted) {
                    let vnodeHook;
                    const { el, props } = initialVNode;
                    const { bm, m, parent } = instance;
                    const isAsyncWrapperVNode = isAsyncWrapper(initialVNode);
                    toggleRecurse(instance, false);
                    // beforeMount hook
                    if (bm) {
                        invokeArrayFns(bm);
                    }
                    // onVnodeBeforeMount
                    if (!isAsyncWrapperVNode &&
                        (vnodeHook = props && props.onVnodeBeforeMount)) {
                        invokeVNodeHook(vnodeHook, parent, initialVNode);
                    }
                    toggleRecurse(instance, true);
                    if (el && hydrateNode) {
                        // vnode has adopted host node - perform hydration instead of mount.
                        const hydrateSubTree = () => {
                            {
                                startMeasure(instance, `render`);
                            }
                            instance.subTree = renderComponentRoot(instance);
                            {
                                endMeasure(instance, `render`);
                            }
                            {
                                startMeasure(instance, `hydrate`);
                            }
                            hydrateNode(el, instance.subTree, instance, parentSuspense, null);
                            {
                                endMeasure(instance, `hydrate`);
                            }
                        };
                        if (isAsyncWrapperVNode) {
                            initialVNode.type.__asyncLoader().then(
                            // note: we are moving the render call into an async callback,
                            // which means it won't track dependencies - but it's ok because
                            // a server-rendered async wrapper is already in resolved state
                            // and it will never need to change.
                            () => !instance.isUnmounted && hydrateSubTree());
                        }
                        else {
                            hydrateSubTree();
                        }
                    }
                    else {
                        {
                            startMeasure(instance, `render`);
                        }
                        const subTree = (instance.subTree = renderComponentRoot(instance));
                        {
                            endMeasure(instance, `render`);
                        }
                        {
                            startMeasure(instance, `patch`);
                        }
                        patch(null, subTree, container, anchor, instance, parentSuspense, isSVG);
                        {
                            endMeasure(instance, `patch`);
                        }
                        initialVNode.el = subTree.el;
                    }
                    // mounted hook
                    if (m) {
                        queuePostRenderEffect(m, parentSuspense);
                    }
                    // onVnodeMounted
                    if (!isAsyncWrapperVNode &&
                        (vnodeHook = props && props.onVnodeMounted)) {
                        const scopedInitialVNode = initialVNode;
                        queuePostRenderEffect(() => invokeVNodeHook(vnodeHook, parent, scopedInitialVNode), parentSuspense);
                    }
                    // activated hook for keep-alive roots.
                    // #1742 activated hook must be accessed after first render
                    // since the hook may be injected by a child keep-alive
                    if (initialVNode.shapeFlag & 256 /* ShapeFlags.COMPONENT_SHOULD_KEEP_ALIVE */ ||
                        (parent &&
                            isAsyncWrapper(parent.vnode) &&
                            parent.vnode.shapeFlag & 256 /* ShapeFlags.COMPONENT_SHOULD_KEEP_ALIVE */)) {
                        instance.a && queuePostRenderEffect(instance.a, parentSuspense);
                    }
                    instance.isMounted = true;
                    {
                        devtoolsComponentAdded(instance);
                    }
                    // #2458: deference mount-only object parameters to prevent memleaks
                    initialVNode = container = anchor = null;
                }
                else {
                    // updateComponent
                    // This is triggered by mutation of component's own state (next: null)
                    // OR parent calling processComponent (next: VNode)
                    let { next, bu, u, parent, vnode } = instance;
                    let originNext = next;
                    let vnodeHook;
                    {
                        pushWarningContext(next || instance.vnode);
                    }
                    // Disallow component effect recursion during pre-lifecycle hooks.
                    toggleRecurse(instance, false);
                    if (next) {
                        next.el = vnode.el;
                        updateComponentPreRender(instance, next, optimized);
                    }
                    else {
                        next = vnode;
                    }
                    // beforeUpdate hook
                    if (bu) {
                        invokeArrayFns(bu);
                    }
                    // onVnodeBeforeUpdate
                    if ((vnodeHook = next.props && next.props.onVnodeBeforeUpdate)) {
                        invokeVNodeHook(vnodeHook, parent, next, vnode);
                    }
                    toggleRecurse(instance, true);
                    // render
                    {
                        startMeasure(instance, `render`);
                    }
                    const nextTree = renderComponentRoot(instance);
                    {
                        endMeasure(instance, `render`);
                    }
                    const prevTree = instance.subTree;
                    instance.subTree = nextTree;
                    {
                        startMeasure(instance, `patch`);
                    }
                    patch(prevTree, nextTree, 
                    // parent may have changed if it's in a teleport
                    hostParentNode(prevTree.el), 
                    // anchor may have changed if it's in a fragment
                    getNextHostNode(prevTree), instance, parentSuspense, isSVG);
                    {
                        endMeasure(instance, `patch`);
                    }
                    next.el = nextTree.el;
                    if (originNext === null) {
                        // self-triggered update. In case of HOC, update parent component
                        // vnode el. HOC is indicated by parent instance's subTree pointing
                        // to child component's vnode
                        updateHOCHostEl(instance, nextTree.el);
                    }
                    // updated hook
                    if (u) {
                        queuePostRenderEffect(u, parentSuspense);
                    }
                    // onVnodeUpdated
                    if ((vnodeHook = next.props && next.props.onVnodeUpdated)) {
                        queuePostRenderEffect(() => invokeVNodeHook(vnodeHook, parent, next, vnode), parentSuspense);
                    }
                    {
                        devtoolsComponentUpdated(instance);
                    }
                    {
                        popWarningContext();
                    }
                }
            };
            // create reactive effect for rendering
            const effect = (instance.effect = new ReactiveEffect(componentUpdateFn, () => queueJob(update), instance.scope // track it in component's effect scope
            ));
            const update = (instance.update = () => effect.run());
            update.id = instance.uid;
            // allowRecurse
            // #1801, #2043 component render effects should allow recursive updates
            toggleRecurse(instance, true);
            {
                effect.onTrack = instance.rtc
                    ? e => invokeArrayFns(instance.rtc, e)
                    : void 0;
                effect.onTrigger = instance.rtg
                    ? e => invokeArrayFns(instance.rtg, e)
                    : void 0;
                update.ownerInstance = instance;
            }
            update();
        };
        const updateComponentPreRender = (instance, nextVNode, optimized) => {
            nextVNode.component = instance;
            const prevProps = instance.vnode.props;
            instance.vnode = nextVNode;
            instance.next = null;
            updateProps(instance, nextVNode.props, prevProps, optimized);
            updateSlots(instance, nextVNode.children, optimized);
            pauseTracking();
            // props update may have triggered pre-flush watchers.
            // flush them before the render update.
            flushPreFlushCbs();
            resetTracking();
        };
        const patchChildren = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized = false) => {
            const c1 = n1 && n1.children;
            const prevShapeFlag = n1 ? n1.shapeFlag : 0;
            const c2 = n2.children;
            const { patchFlag, shapeFlag } = n2;
            // fast path
            if (patchFlag > 0) {
                if (patchFlag & 128 /* PatchFlags.KEYED_FRAGMENT */) {
                    // this could be either fully-keyed or mixed (some keyed some not)
                    // presence of patchFlag means children are guaranteed to be arrays
                    patchKeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                    return;
                }
                else if (patchFlag & 256 /* PatchFlags.UNKEYED_FRAGMENT */) {
                    // unkeyed
                    patchUnkeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                    return;
                }
            }
            // children has 3 possibilities: text, array or no children.
            if (shapeFlag & 8 /* ShapeFlags.TEXT_CHILDREN */) {
                // text children fast path
                if (prevShapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
                    unmountChildren(c1, parentComponent, parentSuspense);
                }
                if (c2 !== c1) {
                    hostSetElementText(container, c2);
                }
            }
            else {
                if (prevShapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
                    // prev children was array
                    if (shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
                        // two arrays, cannot assume anything, do full diff
                        patchKeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                    }
                    else {
                        // no new children, just unmount old
                        unmountChildren(c1, parentComponent, parentSuspense, true);
                    }
                }
                else {
                    // prev children was text OR null
                    // new children is array OR null
                    if (prevShapeFlag & 8 /* ShapeFlags.TEXT_CHILDREN */) {
                        hostSetElementText(container, '');
                    }
                    // mount new if array
                    if (shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
                        mountChildren(c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                    }
                }
            }
        };
        const patchUnkeyedChildren = (c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
            c1 = c1 || EMPTY_ARR;
            c2 = c2 || EMPTY_ARR;
            const oldLength = c1.length;
            const newLength = c2.length;
            const commonLength = Math.min(oldLength, newLength);
            let i;
            for (i = 0; i < commonLength; i++) {
                const nextChild = (c2[i] = optimized
                    ? cloneIfMounted(c2[i])
                    : normalizeVNode(c2[i]));
                patch(c1[i], nextChild, container, null, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
            }
            if (oldLength > newLength) {
                // remove old
                unmountChildren(c1, parentComponent, parentSuspense, true, false, commonLength);
            }
            else {
                // mount new
                mountChildren(c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, commonLength);
            }
        };
        // can be all-keyed or mixed
        const patchKeyedChildren = (c1, c2, container, parentAnchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
            let i = 0;
            const l2 = c2.length;
            let e1 = c1.length - 1; // prev ending index
            let e2 = l2 - 1; // next ending index
            // 1. sync from start
            // (a b) c
            // (a b) d e
            while (i <= e1 && i <= e2) {
                const n1 = c1[i];
                const n2 = (c2[i] = optimized
                    ? cloneIfMounted(c2[i])
                    : normalizeVNode(c2[i]));
                if (isSameVNodeType(n1, n2)) {
                    patch(n1, n2, container, null, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                }
                else {
                    break;
                }
                i++;
            }
            // 2. sync from end
            // a (b c)
            // d e (b c)
            while (i <= e1 && i <= e2) {
                const n1 = c1[e1];
                const n2 = (c2[e2] = optimized
                    ? cloneIfMounted(c2[e2])
                    : normalizeVNode(c2[e2]));
                if (isSameVNodeType(n1, n2)) {
                    patch(n1, n2, container, null, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                }
                else {
                    break;
                }
                e1--;
                e2--;
            }
            // 3. common sequence + mount
            // (a b)
            // (a b) c
            // i = 2, e1 = 1, e2 = 2
            // (a b)
            // c (a b)
            // i = 0, e1 = -1, e2 = 0
            if (i > e1) {
                if (i <= e2) {
                    const nextPos = e2 + 1;
                    const anchor = nextPos < l2 ? c2[nextPos].el : parentAnchor;
                    while (i <= e2) {
                        patch(null, (c2[i] = optimized
                            ? cloneIfMounted(c2[i])
                            : normalizeVNode(c2[i])), container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                        i++;
                    }
                }
            }
            // 4. common sequence + unmount
            // (a b) c
            // (a b)
            // i = 2, e1 = 2, e2 = 1
            // a (b c)
            // (b c)
            // i = 0, e1 = 0, e2 = -1
            else if (i > e2) {
                while (i <= e1) {
                    unmount(c1[i], parentComponent, parentSuspense, true);
                    i++;
                }
            }
            // 5. unknown sequence
            // [i ... e1 + 1]: a b [c d e] f g
            // [i ... e2 + 1]: a b [e d c h] f g
            // i = 2, e1 = 4, e2 = 5
            else {
                const s1 = i; // prev starting index
                const s2 = i; // next starting index
                // 5.1 build key:index map for newChildren
                const keyToNewIndexMap = new Map();
                for (i = s2; i <= e2; i++) {
                    const nextChild = (c2[i] = optimized
                        ? cloneIfMounted(c2[i])
                        : normalizeVNode(c2[i]));
                    if (nextChild.key != null) {
                        if (keyToNewIndexMap.has(nextChild.key)) {
                            warn(`Duplicate keys found during update:`, JSON.stringify(nextChild.key), `Make sure keys are unique.`);
                        }
                        keyToNewIndexMap.set(nextChild.key, i);
                    }
                }
                // 5.2 loop through old children left to be patched and try to patch
                // matching nodes & remove nodes that are no longer present
                let j;
                let patched = 0;
                const toBePatched = e2 - s2 + 1;
                let moved = false;
                // used to track whether any node has moved
                let maxNewIndexSoFar = 0;
                // works as Map<newIndex, oldIndex>
                // Note that oldIndex is offset by +1
                // and oldIndex = 0 is a special value indicating the new node has
                // no corresponding old node.
                // used for determining longest stable subsequence
                const newIndexToOldIndexMap = new Array(toBePatched);
                for (i = 0; i < toBePatched; i++)
                    newIndexToOldIndexMap[i] = 0;
                for (i = s1; i <= e1; i++) {
                    const prevChild = c1[i];
                    if (patched >= toBePatched) {
                        // all new children have been patched so this can only be a removal
                        unmount(prevChild, parentComponent, parentSuspense, true);
                        continue;
                    }
                    let newIndex;
                    if (prevChild.key != null) {
                        newIndex = keyToNewIndexMap.get(prevChild.key);
                    }
                    else {
                        // key-less node, try to locate a key-less node of the same type
                        for (j = s2; j <= e2; j++) {
                            if (newIndexToOldIndexMap[j - s2] === 0 &&
                                isSameVNodeType(prevChild, c2[j])) {
                                newIndex = j;
                                break;
                            }
                        }
                    }
                    if (newIndex === undefined) {
                        unmount(prevChild, parentComponent, parentSuspense, true);
                    }
                    else {
                        newIndexToOldIndexMap[newIndex - s2] = i + 1;
                        if (newIndex >= maxNewIndexSoFar) {
                            maxNewIndexSoFar = newIndex;
                        }
                        else {
                            moved = true;
                        }
                        patch(prevChild, c2[newIndex], container, null, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                        patched++;
                    }
                }
                // 5.3 move and mount
                // generate longest stable subsequence only when nodes have moved
                const increasingNewIndexSequence = moved
                    ? getSequence(newIndexToOldIndexMap)
                    : EMPTY_ARR;
                j = increasingNewIndexSequence.length - 1;
                // looping backwards so that we can use last patched node as anchor
                for (i = toBePatched - 1; i >= 0; i--) {
                    const nextIndex = s2 + i;
                    const nextChild = c2[nextIndex];
                    const anchor = nextIndex + 1 < l2 ? c2[nextIndex + 1].el : parentAnchor;
                    if (newIndexToOldIndexMap[i] === 0) {
                        // mount new
                        patch(null, nextChild, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                    }
                    else if (moved) {
                        // move if:
                        // There is no stable subsequence (e.g. a reverse)
                        // OR current node is not among the stable sequence
                        if (j < 0 || i !== increasingNewIndexSequence[j]) {
                            move(nextChild, container, anchor, 2 /* MoveType.REORDER */);
                        }
                        else {
                            j--;
                        }
                    }
                }
            }
        };
        const move = (vnode, container, anchor, moveType, parentSuspense = null) => {
            const { el, type, transition, children, shapeFlag } = vnode;
            if (shapeFlag & 6 /* ShapeFlags.COMPONENT */) {
                move(vnode.component.subTree, container, anchor, moveType);
                return;
            }
            if (shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
                vnode.suspense.move(container, anchor, moveType);
                return;
            }
            if (shapeFlag & 64 /* ShapeFlags.TELEPORT */) {
                type.move(vnode, container, anchor, internals);
                return;
            }
            if (type === Fragment) {
                hostInsert(el, container, anchor);
                for (let i = 0; i < children.length; i++) {
                    move(children[i], container, anchor, moveType);
                }
                hostInsert(vnode.anchor, container, anchor);
                return;
            }
            if (type === Static) {
                moveStaticNode(vnode, container, anchor);
                return;
            }
            // single nodes
            const needTransition = moveType !== 2 /* MoveType.REORDER */ &&
                shapeFlag & 1 /* ShapeFlags.ELEMENT */ &&
                transition;
            if (needTransition) {
                if (moveType === 0 /* MoveType.ENTER */) {
                    transition.beforeEnter(el);
                    hostInsert(el, container, anchor);
                    queuePostRenderEffect(() => transition.enter(el), parentSuspense);
                }
                else {
                    const { leave, delayLeave, afterLeave } = transition;
                    const remove = () => hostInsert(el, container, anchor);
                    const performLeave = () => {
                        leave(el, () => {
                            remove();
                            afterLeave && afterLeave();
                        });
                    };
                    if (delayLeave) {
                        delayLeave(el, remove, performLeave);
                    }
                    else {
                        performLeave();
                    }
                }
            }
            else {
                hostInsert(el, container, anchor);
            }
        };
        const unmount = (vnode, parentComponent, parentSuspense, doRemove = false, optimized = false) => {
            const { type, props, ref, children, dynamicChildren, shapeFlag, patchFlag, dirs } = vnode;
            // unset ref
            if (ref != null) {
                setRef(ref, null, parentSuspense, vnode, true);
            }
            if (shapeFlag & 256 /* ShapeFlags.COMPONENT_SHOULD_KEEP_ALIVE */) {
                parentComponent.ctx.deactivate(vnode);
                return;
            }
            const shouldInvokeDirs = shapeFlag & 1 /* ShapeFlags.ELEMENT */ && dirs;
            const shouldInvokeVnodeHook = !isAsyncWrapper(vnode);
            let vnodeHook;
            if (shouldInvokeVnodeHook &&
                (vnodeHook = props && props.onVnodeBeforeUnmount)) {
                invokeVNodeHook(vnodeHook, parentComponent, vnode);
            }
            if (shapeFlag & 6 /* ShapeFlags.COMPONENT */) {
                unmountComponent(vnode.component, parentSuspense, doRemove);
            }
            else {
                if (shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
                    vnode.suspense.unmount(parentSuspense, doRemove);
                    return;
                }
                if (shouldInvokeDirs) {
                    invokeDirectiveHook(vnode, null, parentComponent, 'beforeUnmount');
                }
                if (shapeFlag & 64 /* ShapeFlags.TELEPORT */) {
                    vnode.type.remove(vnode, parentComponent, parentSuspense, optimized, internals, doRemove);
                }
                else if (dynamicChildren &&
                    // #1153: fast path should not be taken for non-stable (v-for) fragments
                    (type !== Fragment ||
                        (patchFlag > 0 && patchFlag & 64 /* PatchFlags.STABLE_FRAGMENT */))) {
                    // fast path for block nodes: only need to unmount dynamic children.
                    unmountChildren(dynamicChildren, parentComponent, parentSuspense, false, true);
                }
                else if ((type === Fragment &&
                    patchFlag &
                        (128 /* PatchFlags.KEYED_FRAGMENT */ | 256 /* PatchFlags.UNKEYED_FRAGMENT */)) ||
                    (!optimized && shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */)) {
                    unmountChildren(children, parentComponent, parentSuspense);
                }
                if (doRemove) {
                    remove(vnode);
                }
            }
            if ((shouldInvokeVnodeHook &&
                (vnodeHook = props && props.onVnodeUnmounted)) ||
                shouldInvokeDirs) {
                queuePostRenderEffect(() => {
                    vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, vnode);
                    shouldInvokeDirs &&
                        invokeDirectiveHook(vnode, null, parentComponent, 'unmounted');
                }, parentSuspense);
            }
        };
        const remove = vnode => {
            const { type, el, anchor, transition } = vnode;
            if (type === Fragment) {
                if (vnode.patchFlag > 0 &&
                    vnode.patchFlag & 2048 /* PatchFlags.DEV_ROOT_FRAGMENT */ &&
                    transition &&
                    !transition.persisted) {
                    vnode.children.forEach(child => {
                        if (child.type === Comment) {
                            hostRemove(child.el);
                        }
                        else {
                            remove(child);
                        }
                    });
                }
                else {
                    removeFragment(el, anchor);
                }
                return;
            }
            if (type === Static) {
                removeStaticNode(vnode);
                return;
            }
            const performRemove = () => {
                hostRemove(el);
                if (transition && !transition.persisted && transition.afterLeave) {
                    transition.afterLeave();
                }
            };
            if (vnode.shapeFlag & 1 /* ShapeFlags.ELEMENT */ &&
                transition &&
                !transition.persisted) {
                const { leave, delayLeave } = transition;
                const performLeave = () => leave(el, performRemove);
                if (delayLeave) {
                    delayLeave(vnode.el, performRemove, performLeave);
                }
                else {
                    performLeave();
                }
            }
            else {
                performRemove();
            }
        };
        const removeFragment = (cur, end) => {
            // For fragments, directly remove all contained DOM nodes.
            // (fragment child nodes cannot have transition)
            let next;
            while (cur !== end) {
                next = hostNextSibling(cur);
                hostRemove(cur);
                cur = next;
            }
            hostRemove(end);
        };
        const unmountComponent = (instance, parentSuspense, doRemove) => {
            if (instance.type.__hmrId) {
                unregisterHMR(instance);
            }
            const { bum, scope, update, subTree, um } = instance;
            // beforeUnmount hook
            if (bum) {
                invokeArrayFns(bum);
            }
            // stop effects in component scope
            scope.stop();
            // update may be null if a component is unmounted before its async
            // setup has resolved.
            if (update) {
                // so that scheduler will no longer invoke it
                update.active = false;
                unmount(subTree, instance, parentSuspense, doRemove);
            }
            // unmounted hook
            if (um) {
                queuePostRenderEffect(um, parentSuspense);
            }
            queuePostRenderEffect(() => {
                instance.isUnmounted = true;
            }, parentSuspense);
            // A component with async dep inside a pending suspense is unmounted before
            // its async dep resolves. This should remove the dep from the suspense, and
            // cause the suspense to resolve immediately if that was the last dep.
            if (parentSuspense &&
                parentSuspense.pendingBranch &&
                !parentSuspense.isUnmounted &&
                instance.asyncDep &&
                !instance.asyncResolved &&
                instance.suspenseId === parentSuspense.pendingId) {
                parentSuspense.deps--;
                if (parentSuspense.deps === 0) {
                    parentSuspense.resolve();
                }
            }
            {
                devtoolsComponentRemoved(instance);
            }
        };
        const unmountChildren = (children, parentComponent, parentSuspense, doRemove = false, optimized = false, start = 0) => {
            for (let i = start; i < children.length; i++) {
                unmount(children[i], parentComponent, parentSuspense, doRemove, optimized);
            }
        };
        const getNextHostNode = vnode => {
            if (vnode.shapeFlag & 6 /* ShapeFlags.COMPONENT */) {
                return getNextHostNode(vnode.component.subTree);
            }
            if (vnode.shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
                return vnode.suspense.next();
            }
            return hostNextSibling((vnode.anchor || vnode.el));
        };
        const render = (vnode, container, isSVG) => {
            if (vnode == null) {
                if (container._vnode) {
                    unmount(container._vnode, null, null, true);
                }
            }
            else {
                patch(container._vnode || null, vnode, container, null, null, null, isSVG);
            }
            flushPreFlushCbs();
            flushPostFlushCbs();
            container._vnode = vnode;
        };
        const internals = {
            p: patch,
            um: unmount,
            m: move,
            r: remove,
            mt: mountComponent,
            mc: mountChildren,
            pc: patchChildren,
            pbc: patchBlockChildren,
            n: getNextHostNode,
            o: options
        };
        let hydrate;
        let hydrateNode;
        if (createHydrationFns) {
            [hydrate, hydrateNode] = createHydrationFns(internals);
        }
        return {
            render,
            hydrate,
            createApp: createAppAPI(render, hydrate)
        };
    }
    function toggleRecurse({ effect, update }, allowed) {
        effect.allowRecurse = update.allowRecurse = allowed;
    }
    /**
     * #1156
     * When a component is HMR-enabled, we need to make sure that all static nodes
     * inside a block also inherit the DOM element from the previous tree so that
     * HMR updates (which are full updates) can retrieve the element for patching.
     *
     * #2080
     * Inside keyed `template` fragment static children, if a fragment is moved,
     * the children will always be moved. Therefore, in order to ensure correct move
     * position, el should be inherited from previous nodes.
     */
    function traverseStaticChildren(n1, n2, shallow = false) {
        const ch1 = n1.children;
        const ch2 = n2.children;
        if (isArray(ch1) && isArray(ch2)) {
            for (let i = 0; i < ch1.length; i++) {
                // this is only called in the optimized path so array children are
                // guaranteed to be vnodes
                const c1 = ch1[i];
                let c2 = ch2[i];
                if (c2.shapeFlag & 1 /* ShapeFlags.ELEMENT */ && !c2.dynamicChildren) {
                    if (c2.patchFlag <= 0 || c2.patchFlag === 32 /* PatchFlags.HYDRATE_EVENTS */) {
                        c2 = ch2[i] = cloneIfMounted(ch2[i]);
                        c2.el = c1.el;
                    }
                    if (!shallow)
                        traverseStaticChildren(c1, c2);
                }
                // #6852 also inherit for text nodes
                if (c2.type === Text) {
                    c2.el = c1.el;
                }
                // also inherit for comment nodes, but not placeholders (e.g. v-if which
                // would have received .el during block patch)
                if (c2.type === Comment && !c2.el) {
                    c2.el = c1.el;
                }
            }
        }
    }
    // https://en.wikipedia.org/wiki/Longest_increasing_subsequence
    function getSequence(arr) {
        const p = arr.slice();
        const result = [0];
        let i, j, u, v, c;
        const len = arr.length;
        for (i = 0; i < len; i++) {
            const arrI = arr[i];
            if (arrI !== 0) {
                j = result[result.length - 1];
                if (arr[j] < arrI) {
                    p[i] = j;
                    result.push(i);
                    continue;
                }
                u = 0;
                v = result.length - 1;
                while (u < v) {
                    c = (u + v) >> 1;
                    if (arr[result[c]] < arrI) {
                        u = c + 1;
                    }
                    else {
                        v = c;
                    }
                }
                if (arrI < arr[result[u]]) {
                    if (u > 0) {
                        p[i] = result[u - 1];
                    }
                    result[u] = i;
                }
            }
        }
        u = result.length;
        v = result[u - 1];
        while (u-- > 0) {
            result[u] = v;
            v = p[v];
        }
        return result;
    }
  
    const isTeleport = (type) => type.__isTeleport;
    const isTeleportDisabled = (props) => props && (props.disabled || props.disabled === '');
    const isTargetSVG = (target) => typeof SVGElement !== 'undefined' && target instanceof SVGElement;
    const resolveTarget = (props, select) => {
        const targetSelector = props && props.to;
        if (isString(targetSelector)) {
            if (!select) {
                warn(`Current renderer does not support string target for Teleports. ` +
                        `(missing querySelector renderer option)`);
                return null;
            }
            else {
                const target = select(targetSelector);
                if (!target) {
                    warn(`Failed to locate Teleport target with selector "${targetSelector}". ` +
                            `Note the target element must exist before the component is mounted - ` +
                            `i.e. the target cannot be rendered by the component itself, and ` +
                            `ideally should be outside of the entire Vue component tree.`);
                }
                return target;
            }
        }
        else {
            if (!targetSelector && !isTeleportDisabled(props)) {
                warn(`Invalid Teleport target: ${targetSelector}`);
            }
            return targetSelector;
        }
    };
    const TeleportImpl = {
        __isTeleport: true,
        process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, internals) {
            const { mc: mountChildren, pc: patchChildren, pbc: patchBlockChildren, o: { insert, querySelector, createText, createComment } } = internals;
            const disabled = isTeleportDisabled(n2.props);
            let { shapeFlag, children, dynamicChildren } = n2;
            // #3302
            // HMR updated, force full diff
            if (isHmrUpdating) {
                optimized = false;
                dynamicChildren = null;
            }
            if (n1 == null) {
                // insert anchors in the main view
                const placeholder = (n2.el = createComment('teleport start')
                    );
                const mainAnchor = (n2.anchor = createComment('teleport end')
                    );
                insert(placeholder, container, anchor);
                insert(mainAnchor, container, anchor);
                const target = (n2.target = resolveTarget(n2.props, querySelector));
                const targetAnchor = (n2.targetAnchor = createText(''));
                if (target) {
                    insert(targetAnchor, target);
                    // #2652 we could be teleporting from a non-SVG tree into an SVG tree
                    isSVG = isSVG || isTargetSVG(target);
                }
                else if (!disabled) {
                    warn('Invalid Teleport target on mount:', target, `(${typeof target})`);
                }
                const mount = (container, anchor) => {
                    // Teleport *always* has Array children. This is enforced in both the
                    // compiler and vnode children normalization.
                    if (shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
                        mountChildren(children, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
                    }
                };
                if (disabled) {
                    mount(container, mainAnchor);
                }
                else if (target) {
                    mount(target, targetAnchor);
                }
            }
            else {
                // update content
                n2.el = n1.el;
                const mainAnchor = (n2.anchor = n1.anchor);
                const target = (n2.target = n1.target);
                const targetAnchor = (n2.targetAnchor = n1.targetAnchor);
                const wasDisabled = isTeleportDisabled(n1.props);
                const currentContainer = wasDisabled ? container : target;
                const currentAnchor = wasDisabled ? mainAnchor : targetAnchor;
                isSVG = isSVG || isTargetSVG(target);
                if (dynamicChildren) {
                    // fast path when the teleport happens to be a block root
                    patchBlockChildren(n1.dynamicChildren, dynamicChildren, currentContainer, parentComponent, parentSuspense, isSVG, slotScopeIds);
                    // even in block tree mode we need to make sure all root-level nodes
                    // in the teleport inherit previous DOM references so that they can
                    // be moved in future patches.
                    traverseStaticChildren(n1, n2, true);
                }
                else if (!optimized) {
                    patchChildren(n1, n2, currentContainer, currentAnchor, parentComponent, parentSuspense, isSVG, slotScopeIds, false);
                }
                if (disabled) {
                    if (!wasDisabled) {
                        // enabled -> disabled
                        // move into main container
                        moveTeleport(n2, container, mainAnchor, internals, 1 /* TeleportMoveTypes.TOGGLE */);
                    }
                }
                else {
                    // target changed
                    if ((n2.props && n2.props.to) !== (n1.props && n1.props.to)) {
                        const nextTarget = (n2.target = resolveTarget(n2.props, querySelector));
                        if (nextTarget) {
                            moveTeleport(n2, nextTarget, null, internals, 0 /* TeleportMoveTypes.TARGET_CHANGE */);
                        }
                        else {
                            warn('Invalid Teleport target on update:', target, `(${typeof target})`);
                        }
                    }
                    else if (wasDisabled) {
                        // disabled -> enabled
                        // move into teleport target
                        moveTeleport(n2, target, targetAnchor, internals, 1 /* TeleportMoveTypes.TOGGLE */);
                    }
                }
            }
            updateCssVars(n2);
        },
        remove(vnode, parentComponent, parentSuspense, optimized, { um: unmount, o: { remove: hostRemove } }, doRemove) {
            const { shapeFlag, children, anchor, targetAnchor, target, props } = vnode;
            if (target) {
                hostRemove(targetAnchor);
            }
            // an unmounted teleport should always remove its children if not disabled
            if (doRemove || !isTeleportDisabled(props)) {
                hostRemove(anchor);
                if (shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
                    for (let i = 0; i < children.length; i++) {
                        const child = children[i];
                        unmount(child, parentComponent, parentSuspense, true, !!child.dynamicChildren);
                    }
                }
            }
        },
        move: moveTeleport,
        hydrate: hydrateTeleport
    };
    function moveTeleport(vnode, container, parentAnchor, { o: { insert }, m: move }, moveType = 2 /* TeleportMoveTypes.REORDER */) {
        // move target anchor if this is a target change.
        if (moveType === 0 /* TeleportMoveTypes.TARGET_CHANGE */) {
            insert(vnode.targetAnchor, container, parentAnchor);
        }
        const { el, anchor, shapeFlag, children, props } = vnode;
        const isReorder = moveType === 2 /* TeleportMoveTypes.REORDER */;
        // move main view anchor if this is a re-order.
        if (isReorder) {
            insert(el, container, parentAnchor);
        }
        // if this is a re-order and teleport is enabled (content is in target)
        // do not move children. So the opposite is: only move children if this
        // is not a reorder, or the teleport is disabled
        if (!isReorder || isTeleportDisabled(props)) {
            // Teleport has either Array children or no children.
            if (shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
                for (let i = 0; i < children.length; i++) {
                    move(children[i], container, parentAnchor, 2 /* MoveType.REORDER */);
                }
            }
        }
        // move main view anchor if this is a re-order.
        if (isReorder) {
            insert(anchor, container, parentAnchor);
        }
    }
    function hydrateTeleport(node, vnode, parentComponent, parentSuspense, slotScopeIds, optimized, { o: { nextSibling, parentNode, querySelector } }, hydrateChildren) {
        const target = (vnode.target = resolveTarget(vnode.props, querySelector));
        if (target) {
            // if multiple teleports rendered to the same target element, we need to
            // pick up from where the last teleport finished instead of the first node
            const targetNode = target._lpa || target.firstChild;
            if (vnode.shapeFlag & 16 /* ShapeFlags.ARRAY_CHILDREN */) {
                if (isTeleportDisabled(vnode.props)) {
                    vnode.anchor = hydrateChildren(nextSibling(node), vnode, parentNode(node), parentComponent, parentSuspense, slotScopeIds, optimized);
                    vnode.targetAnchor = targetNode;
                }
                else {
                    vnode.anchor = nextSibling(node);
                    // lookahead until we find the target anchor
                    // we cannot rely on return value of hydrateChildren() because there
                    // could be nested teleports
                    let targetAnchor = targetNode;
                    while (targetAnchor) {
                        targetAnchor = nextSibling(targetAnchor);
                        if (targetAnchor &&
                            targetAnchor.nodeType === 8 &&
                            targetAnchor.data === 'teleport anchor') {
                            vnode.targetAnchor = targetAnchor;
                            target._lpa =
                                vnode.targetAnchor && nextSibling(vnode.targetAnchor);
                            break;
                        }
                    }
                    hydrateChildren(targetNode, vnode, target, parentComponent, parentSuspense, slotScopeIds, optimized);
                }
            }
            updateCssVars(vnode);
        }
        return vnode.anchor && nextSibling(vnode.anchor);
    }
    // Force-casted public typing for h and TSX props inference
    const Teleport = TeleportImpl;
    function updateCssVars(vnode) {
        // presence of .ut method indicates owner component uses css vars.
        // code path here can assume browser environment.
        const ctx = vnode.ctx;
        if (ctx && ctx.ut) {
            let node = vnode.children[0].el;
            while (node !== vnode.targetAnchor) {
                if (node.nodeType === 1)
                    node.setAttribute('data-v-owner', ctx.uid);
                node = node.nextSibling;
            }
            ctx.ut();
        }
    }
  
    const Fragment = Symbol('Fragment' );
    const Text = Symbol('Text' );
    const Comment = Symbol('Comment' );
    const Static = Symbol('Static' );
    // Since v-if and v-for are the two possible ways node structure can dynamically
    // change, once we consider v-if branches and each v-for fragment a block, we
    // can divide a template into nested blocks, and within each block the node
    // structure would be stable. This allows us to skip most children diffing
    // and only worry about the dynamic nodes (indicated by patch flags).
    const blockStack = [];
    let currentBlock = null;
    /**
     * Open a block.
     * This must be called before `createBlock`. It cannot be part of `createBlock`
     * because the children of the block are evaluated before `createBlock` itself
     * is called. The generated code typically looks like this:
     *
     * ```js
     * function render() {
     *   return (openBlock(),createBlock('div', null, [...]))
     * }
     * ```
     * disableTracking is true when creating a v-for fragment block, since a v-for
     * fragment always diffs its children.
     *
     * @private
     */
    function openBlock(disableTracking = false) {
        blockStack.push((currentBlock = disableTracking ? null : []));
    }
    function closeBlock() {
        blockStack.pop();
        currentBlock = blockStack[blockStack.length - 1] || null;
    }
    // Whether we should be tracking dynamic child nodes inside a block.
    // Only tracks when this value is > 0
    // We are not using a simple boolean because this value may need to be
    // incremented/decremented by nested usage of v-once (see below)
    let isBlockTreeEnabled = 1;
    /**
     * Block tracking sometimes needs to be disabled, for example during the
     * creation of a tree that needs to be cached by v-once. The compiler generates
     * code like this:
     *
     * ``` js
     * _cache[1] || (
     *   setBlockTracking(-1),
     *   _cache[1] = createVNode(...),
     *   setBlockTracking(1),
     *   _cache[1]
     * )
     * ```
     *
     * @private
     */
    function setBlockTracking(value) {
        isBlockTreeEnabled += value;
    }
    function setupBlock(vnode) {
        // save current block children on the block vnode
        vnode.dynamicChildren =
            isBlockTreeEnabled > 0 ? currentBlock || EMPTY_ARR : null;
        // close block
        closeBlock();
        // a block is always going to be patched, so track it as a child of its
        // parent block
        if (isBlockTreeEnabled > 0 && currentBlock) {
            currentBlock.push(vnode);
        }
        return vnode;
    }
    /**
     * @private
     */
    function createElementBlock(type, props, children, patchFlag, dynamicProps, shapeFlag) {
        return setupBlock(createBaseVNode(type, props, children, patchFlag, dynamicProps, shapeFlag, true /* isBlock */));
    }
    /**
     * Create a block root vnode. Takes the same exact arguments as `createVNode`.
     * A block root keeps track of dynamic nodes within the block in the
     * `dynamicChildren` array.
     *
     * @private
     */
    function createBlock(type, props, children, patchFlag, dynamicProps) {
        return setupBlock(createVNode(type, props, children, patchFlag, dynamicProps, true /* isBlock: prevent a block from tracking itself */));
    }
    function isVNode(value) {
        return value ? value.__v_isVNode === true : false;
    }
    function isSameVNodeType(n1, n2) {
        if (n2.shapeFlag & 6 /* ShapeFlags.COMPONENT */ &&
            hmrDirtyComponents.has(n2.type)) {
            // #7042, ensure the vnode being unmounted during HMR
            // bitwise operations to remove keep alive flags
            n1.shapeFlag &= ~256 /* ShapeFlags.COMPONENT_SHOULD_KEEP_ALIVE */;
            n2.shapeFlag &= ~512 /* ShapeFlags.COMPONENT_KEPT_ALIVE */;
            // HMR only: if the component has been hot-updated, force a reload.
            return false;
        }
        return n1.type === n2.type && n1.key === n2.key;
    }
    let vnodeArgsTransformer;
    /**
     * Internal API for registering an arguments transform for createVNode
     * used for creating stubs in the test-utils
     * It is *internal* but needs to be exposed for test-utils to pick up proper
     * typings
     */
    function transformVNodeArgs(transformer) {
        vnodeArgsTransformer = transformer;
    }
    const createVNodeWithArgsTransform = (...args) => {
        return _createVNode(...(vnodeArgsTransformer
            ? vnodeArgsTransformer(args, currentRenderingInstance)
            : args));
    };
    const InternalObjectKey = `__vInternal`;
    const normalizeKey = ({ key }) => key != null ? key : null;
    const normalizeRef = ({ ref, ref_key, ref_for }) => {
        return (ref != null
            ? isString(ref) || isRef(ref) || isFunction(ref)
                ? { i: currentRenderingInstance, r: ref, k: ref_key, f: !!ref_for }
                : ref
            : null);
    };
    function createBaseVNode(type, props = null, children = null, patchFlag = 0, dynamicProps = null, shapeFlag = type === Fragment ? 0 : 1 /* ShapeFlags.ELEMENT */, isBlockNode = false, needFullChildrenNormalization = false) {
        const vnode = {
            __v_isVNode: true,
            __v_skip: true,
            type,
            props,
            key: props && normalizeKey(props),
            ref: props && normalizeRef(props),
            scopeId: currentScopeId,
            slotScopeIds: null,
            children,
            component: null,
            suspense: null,
            ssContent: null,
            ssFallback: null,
            dirs: null,
            transition: null,
            el: null,
            anchor: null,
            target: null,
            targetAnchor: null,
            staticCount: 0,
            shapeFlag,
            patchFlag,
            dynamicProps,
            dynamicChildren: null,
            appContext: null,
            ctx: currentRenderingInstance
        };
        if (needFullChildrenNormalization) {
            normalizeChildren(vnode, children);
            // normalize suspense children
            if (shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
                type.normalize(vnode);
            }
        }
        else if (children) {
            // compiled element vnode - if children is passed, only possible types are
            // string or Array.
            vnode.shapeFlag |= isString(children)
                ? 8 /* ShapeFlags.TEXT_CHILDREN */
                : 16 /* ShapeFlags.ARRAY_CHILDREN */;
        }
        // validate key
        if (vnode.key !== vnode.key) {
            warn(`VNode created with invalid key (NaN). VNode type:`, vnode.type);
        }
        // track vnode for block tree
        if (isBlockTreeEnabled > 0 &&
            // avoid a block node from tracking itself
            !isBlockNode &&
            // has current parent block
            currentBlock &&
            // presence of a patch flag indicates this node needs patching on updates.
            // component nodes also should always be patched, because even if the
            // component doesn't need to update, it needs to persist the instance on to
            // the next vnode so that it can be properly unmounted later.
            (vnode.patchFlag > 0 || shapeFlag & 6 /* ShapeFlags.COMPONENT */) &&
            // the EVENTS flag is only for hydration and if it is the only flag, the
            // vnode should not be considered dynamic due to handler caching.
            vnode.patchFlag !== 32 /* PatchFlags.HYDRATE_EVENTS */) {
            currentBlock.push(vnode);
        }
        return vnode;
    }
    const createVNode = (createVNodeWithArgsTransform );
    function _createVNode(type, props = null, children = null, patchFlag = 0, dynamicProps = null, isBlockNode = false) {
        if (!type || type === NULL_DYNAMIC_COMPONENT) {
            if (!type) {
                warn(`Invalid vnode type when creating vnode: ${type}.`);
            }
            type = Comment;
        }
        if (isVNode(type)) {
            // createVNode receiving an existing vnode. This happens in cases like
            // <component :is="vnode"/>
            // #2078 make sure to merge refs during the clone instead of overwriting it
            const cloned = cloneVNode(type, props, true /* mergeRef: true */);
            if (children) {
                normalizeChildren(cloned, children);
            }
            if (isBlockTreeEnabled > 0 && !isBlockNode && currentBlock) {
                if (cloned.shapeFlag & 6 /* ShapeFlags.COMPONENT */) {
                    currentBlock[currentBlock.indexOf(type)] = cloned;
                }
                else {
                    currentBlock.push(cloned);
                }
            }
            cloned.patchFlag |= -2 /* PatchFlags.BAIL */;
            return cloned;
        }
        // class component normalization.
        if (isClassComponent(type)) {
            type = type.__vccOpts;
        }
        // class & style normalization.
        if (props) {
            // for reactive or proxy objects, we need to clone it to enable mutation.
            props = guardReactiveProps(props);
            let { class: klass, style } = props;
            if (klass && !isString(klass)) {
                props.class = normalizeClass(klass);
            }
            if (isObject(style)) {
                // reactive state objects need to be cloned since they are likely to be
                // mutated
                if (isProxy(style) && !isArray(style)) {
                    style = extend({}, style);
                }
                props.style = normalizeStyle(style);
            }
        }
        // encode the vnode type information into a bitmap
        const shapeFlag = isString(type)
            ? 1 /* ShapeFlags.ELEMENT */
            : isSuspense(type)
                ? 128 /* ShapeFlags.SUSPENSE */
                : isTeleport(type)
                    ? 64 /* ShapeFlags.TELEPORT */
                    : isObject(type)
                        ? 4 /* ShapeFlags.STATEFUL_COMPONENT */
                        : isFunction(type)
                            ? 2 /* ShapeFlags.FUNCTIONAL_COMPONENT */
                            : 0;
        if (shapeFlag & 4 /* ShapeFlags.STATEFUL_COMPONENT */ && isProxy(type)) {
            type = toRaw(type);
            warn(`Vue received a Component which was made a reactive object. This can ` +
                `lead to unnecessary performance overhead, and should be avoided by ` +
                `marking the component with \`markRaw\` or using \`shallowRef\` ` +
                `instead of \`ref\`.`, `\nComponent that was made reactive: `, type);
        }
        return createBaseVNode(type, props, children, patchFlag, dynamicProps, shapeFlag, isBlockNode, true);
    }
    function guardReactiveProps(props) {
        if (!props)
            return null;
        return isProxy(props) || InternalObjectKey in props
            ? extend({}, props)
            : props;
    }
    function cloneVNode(vnode, extraProps, mergeRef = false) {
        // This is intentionally NOT using spread or extend to avoid the runtime
        // key enumeration cost.
        const { props, ref, patchFlag, children } = vnode;
        const mergedProps = extraProps ? mergeProps(props || {}, extraProps) : props;
        const cloned = {
            __v_isVNode: true,
            __v_skip: true,
            type: vnode.type,
            props: mergedProps,
            key: mergedProps && normalizeKey(mergedProps),
            ref: extraProps && extraProps.ref
                ? // #2078 in the case of <component :is="vnode" ref="extra"/>
                    // if the vnode itself already has a ref, cloneVNode will need to merge
                    // the refs so the single vnode can be set on multiple refs
                    mergeRef && ref
                        ? isArray(ref)
                            ? ref.concat(normalizeRef(extraProps))
                            : [ref, normalizeRef(extraProps)]
                        : normalizeRef(extraProps)
                : ref,
            scopeId: vnode.scopeId,
            slotScopeIds: vnode.slotScopeIds,
            children: patchFlag === -1 /* PatchFlags.HOISTED */ && isArray(children)
                ? children.map(deepCloneVNode)
                : children,
            target: vnode.target,
            targetAnchor: vnode.targetAnchor,
            staticCount: vnode.staticCount,
            shapeFlag: vnode.shapeFlag,
            // if the vnode is cloned with extra props, we can no longer assume its
            // existing patch flag to be reliable and need to add the FULL_PROPS flag.
            // note: preserve flag for fragments since they use the flag for children
            // fast paths only.
            patchFlag: extraProps && vnode.type !== Fragment
                ? patchFlag === -1 // hoisted node
                    ? 16 /* PatchFlags.FULL_PROPS */
                    : patchFlag | 16 /* PatchFlags.FULL_PROPS */
                : patchFlag,
            dynamicProps: vnode.dynamicProps,
            dynamicChildren: vnode.dynamicChildren,
            appContext: vnode.appContext,
            dirs: vnode.dirs,
            transition: vnode.transition,
            // These should technically only be non-null on mounted VNodes. However,
            // they *should* be copied for kept-alive vnodes. So we just always copy
            // them since them being non-null during a mount doesn't affect the logic as
            // they will simply be overwritten.
            component: vnode.component,
            suspense: vnode.suspense,
            ssContent: vnode.ssContent && cloneVNode(vnode.ssContent),
            ssFallback: vnode.ssFallback && cloneVNode(vnode.ssFallback),
            el: vnode.el,
            anchor: vnode.anchor,
            ctx: vnode.ctx,
            ce: vnode.ce
        };
        return cloned;
    }
    /**
     * Dev only, for HMR of hoisted vnodes reused in v-for
     * https://github.com/vitejs/vite/issues/2022
     */
    function deepCloneVNode(vnode) {
        const cloned = cloneVNode(vnode);
        if (isArray(vnode.children)) {
            cloned.children = vnode.children.map(deepCloneVNode);
        }
        return cloned;
    }
    /**
     * @private
     */
    function createTextVNode(text = ' ', flag = 0) {
        return createVNode(Text, null, text, flag);
    }
    /**
     * @private
     */
    function createStaticVNode(content, numberOfNodes) {
        // A static vnode can contain multiple stringified elements, and the number
        // of elements is necessary for hydration.
        const vnode = createVNode(Static, null, content);
        vnode.staticCount = numberOfNodes;
        return vnode;
    }
    /**
     * @private
     */
    function createCommentVNode(text = '', 
    // when used as the v-else branch, the comment node must be created as a
    // block to ensure correct updates.
    asBlock = false) {
        return asBlock
            ? (openBlock(), createBlock(Comment, null, text))
            : createVNode(Comment, null, text);
    }
    function normalizeVNode(child) {
        if (child == null || typeof child === 'boolean') {
            // empty placeholder
            return createVNode(Comment);
        }
        else if (isArray(child)) {
            // fragment
            return createVNode(Fragment, null, 
            // #3666, avoid reference pollution when reusing vnode
            child.slice());
        }
        else if (typeof child === 'object') {
            // already vnode, this should be the most common since compiled templates
            // always produce all-vnode children arrays
            return cloneIfMounted(child);
        }
        else {
            // strings and numbers
            return createVNode(Text, null, String(child));
        }
    }
    // optimized normalization for template-compiled render fns
    function cloneIfMounted(child) {
        return (child.el === null && child.patchFlag !== -1 /* PatchFlags.HOISTED */) ||
            child.memo
            ? child
            : cloneVNode(child);
    }
    function normalizeChildren(vnode, children) {
        let type = 0;
        const { shapeFlag } = vnode;
        if (children == null) {
            children = null;
        }
        else if (isArray(children)) {
            type = 16 /* ShapeFlags.ARRAY_CHILDREN */;
        }
        else if (typeof children === 'object') {
            if (shapeFlag & (1 /* ShapeFlags.ELEMENT */ | 64 /* ShapeFlags.TELEPORT */)) {
                // Normalize slot to plain children for plain element and Teleport
                const slot = children.default;
                if (slot) {
                    // _c marker is added by withCtx() indicating this is a compiled slot
                    slot._c && (slot._d = false);
                    normalizeChildren(vnode, slot());
                    slot._c && (slot._d = true);
                }
                return;
            }
            else {
                type = 32 /* ShapeFlags.SLOTS_CHILDREN */;
                const slotFlag = children._;
                if (!slotFlag && !(InternalObjectKey in children)) {
                    children._ctx = currentRenderingInstance;
                }
                else if (slotFlag === 3 /* SlotFlags.FORWARDED */ && currentRenderingInstance) {
                    // a child component receives forwarded slots from the parent.
                    // its slot type is determined by its parent's slot type.
                    if (currentRenderingInstance.slots._ === 1 /* SlotFlags.STABLE */) {
                        children._ = 1 /* SlotFlags.STABLE */;
                    }
                    else {
                        children._ = 2 /* SlotFlags.DYNAMIC */;
                        vnode.patchFlag |= 1024 /* PatchFlags.DYNAMIC_SLOTS */;
                    }
                }
            }
        }
        else if (isFunction(children)) {
            children = { default: children, _ctx: currentRenderingInstance };
            type = 32 /* ShapeFlags.SLOTS_CHILDREN */;
        }
        else {
            children = String(children);
            // force teleport children to array so it can be moved around
            if (shapeFlag & 64 /* ShapeFlags.TELEPORT */) {
                type = 16 /* ShapeFlags.ARRAY_CHILDREN */;
                children = [createTextVNode(children)];
            }
            else {
                type = 8 /* ShapeFlags.TEXT_CHILDREN */;
            }
        }
        vnode.children = children;
        vnode.shapeFlag |= type;
    }
    function mergeProps(...args) {
        const ret = {};
        for (let i = 0; i < args.length; i++) {
            const toMerge = args[i];
            for (const key in toMerge) {
                if (key === 'class') {
                    if (ret.class !== toMerge.class) {
                        ret.class = normalizeClass([ret.class, toMerge.class]);
                    }
                }
                else if (key === 'style') {
                    ret.style = normalizeStyle([ret.style, toMerge.style]);
                }
                else if (isOn(key)) {
                    const existing = ret[key];
                    const incoming = toMerge[key];
                    if (incoming &&
                        existing !== incoming &&
                        !(isArray(existing) && existing.includes(incoming))) {
                        ret[key] = existing
                            ? [].concat(existing, incoming)
                            : incoming;
                    }
                }
                else if (key !== '') {
                    ret[key] = toMerge[key];
                }
            }
        }
        return ret;
    }
    function invokeVNodeHook(hook, instance, vnode, prevVNode = null) {
        callWithAsyncErrorHandling(hook, instance, 7 /* ErrorCodes.VNODE_HOOK */, [
            vnode,
            prevVNode
        ]);
    }
  
    const emptyAppContext = createAppContext();
    let uid = 0;
    function createComponentInstance(vnode, parent, suspense) {
        const type = vnode.type;
        // inherit parent app context - or - if root, adopt from root vnode
        const appContext = (parent ? parent.appContext : vnode.appContext) || emptyAppContext;
        const instance = {
            uid: uid++,
            vnode,
            type,
            parent,
            appContext,
            root: null,
            next: null,
            subTree: null,
            effect: null,
            update: null,
            scope: new EffectScope(true /* detached */),
            render: null,
            proxy: null,
            exposed: null,
            exposeProxy: null,
            withProxy: null,
            provides: parent ? parent.provides : Object.create(appContext.provides),
            accessCache: null,
            renderCache: [],
            // local resolved assets
            components: null,
            directives: null,
            // resolved props and emits options
            propsOptions: normalizePropsOptions(type, appContext),
            emitsOptions: normalizeEmitsOptions(type, appContext),
            // emit
            emit: null,
            emitted: null,
            // props default value
            propsDefaults: EMPTY_OBJ,
            // inheritAttrs
            inheritAttrs: type.inheritAttrs,
            // state
            ctx: EMPTY_OBJ,
            data: EMPTY_OBJ,
            props: EMPTY_OBJ,
            attrs: EMPTY_OBJ,
            slots: EMPTY_OBJ,
            refs: EMPTY_OBJ,
            setupState: EMPTY_OBJ,
            setupContext: null,
            // suspense related
            suspense,
            suspenseId: suspense ? suspense.pendingId : 0,
            asyncDep: null,
            asyncResolved: false,
            // lifecycle hooks
            // not using enums here because it results in computed properties
            isMounted: false,
            isUnmounted: false,
            isDeactivated: false,
            bc: null,
            c: null,
            bm: null,
            m: null,
            bu: null,
            u: null,
            um: null,
            bum: null,
            da: null,
            a: null,
            rtg: null,
            rtc: null,
            ec: null,
            sp: null
        };
        {
            instance.ctx = createDevRenderContext(instance);
        }
        instance.root = parent ? parent.root : instance;
        instance.emit = emit.bind(null, instance);
        // apply custom element special handling
        if (vnode.ce) {
            vnode.ce(instance);
        }
        return instance;
    }
    let currentInstance = null;
    const getCurrentInstance = () => currentInstance || currentRenderingInstance;
    const setCurrentInstance = (instance) => {
        currentInstance = instance;
        instance.scope.on();
    };
    const unsetCurrentInstance = () => {
        currentInstance && currentInstance.scope.off();
        currentInstance = null;
    };
    const isBuiltInTag = /*#__PURE__*/ makeMap('slot,component');
    function validateComponentName(name, config) {
        const appIsNativeTag = config.isNativeTag || NO;
        if (isBuiltInTag(name) || appIsNativeTag(name)) {
            warn('Do not use built-in or reserved HTML elements as component id: ' + name);
        }
    }
    function isStatefulComponent(instance) {
        return instance.vnode.shapeFlag & 4 /* ShapeFlags.STATEFUL_COMPONENT */;
    }
    let isInSSRComponentSetup = false;
    function setupComponent(instance, isSSR = false) {
        isInSSRComponentSetup = isSSR;
        const { props, children } = instance.vnode;
        const isStateful = isStatefulComponent(instance);
        initProps(instance, props, isStateful, isSSR);
        initSlots(instance, children);
        const setupResult = isStateful
            ? setupStatefulComponent(instance, isSSR)
            : undefined;
        isInSSRComponentSetup = false;
        return setupResult;
    }
    function setupStatefulComponent(instance, isSSR) {
        var _a;
        const Component = instance.type;
        {
            if (Component.name) {
                validateComponentName(Component.name, instance.appContext.config);
            }
            if (Component.components) {
                const names = Object.keys(Component.components);
                for (let i = 0; i < names.length; i++) {
                    validateComponentName(names[i], instance.appContext.config);
                }
            }
            if (Component.directives) {
                const names = Object.keys(Component.directives);
                for (let i = 0; i < names.length; i++) {
                    validateDirectiveName(names[i]);
                }
            }
            if (Component.compilerOptions && isRuntimeOnly()) {
                warn(`"compilerOptions" is only supported when using a build of Vue that ` +
                    `includes the runtime compiler. Since you are using a runtime-only ` +
                    `build, the options should be passed via your build tool config instead.`);
            }
        }
        // 0. create render proxy property access cache
        instance.accessCache = Object.create(null);
        // 1. create public instance / render proxy
        // also mark it raw so it's never observed
        instance.proxy = markRaw(new Proxy(instance.ctx, PublicInstanceProxyHandlers));
        {
            exposePropsOnRenderContext(instance);
        }
        // 2. call setup()
        const { setup } = Component;
        if (setup) {
            const setupContext = (instance.setupContext =
                setup.length > 1 ? createSetupContext(instance) : null);
            setCurrentInstance(instance);
            pauseTracking();
            const setupResult = callWithErrorHandling(setup, instance, 0 /* ErrorCodes.SETUP_FUNCTION */, [shallowReadonly(instance.props) , setupContext]);
            resetTracking();
            unsetCurrentInstance();
            if (isPromise(setupResult)) {
                setupResult.then(unsetCurrentInstance, unsetCurrentInstance);
                if (isSSR) {
                    // return the promise so server-renderer can wait on it
                    return setupResult
                        .then((resolvedResult) => {
                        handleSetupResult(instance, resolvedResult, isSSR);
                    })
                        .catch(e => {
                        handleError(e, instance, 0 /* ErrorCodes.SETUP_FUNCTION */);
                    });
                }
                else {
                    // async setup returned Promise.
                    // bail here and wait for re-entry.
                    instance.asyncDep = setupResult;
                    if (!instance.suspense) {
                        const name = (_a = Component.name) !== null && _a !== void 0 ? _a : 'Anonymous';
                        warn(`Component <${name}>: setup function returned a promise, but no ` +
                            `<Suspense> boundary was found in the parent component tree. ` +
                            `A component with async setup() must be nested in a <Suspense> ` +
                            `in order to be rendered.`);
                    }
                }
            }
            else {
                handleSetupResult(instance, setupResult, isSSR);
            }
        }
        else {
            finishComponentSetup(instance, isSSR);
        }
    }
    function handleSetupResult(instance, setupResult, isSSR) {
        if (isFunction(setupResult)) {
            // setup returned an inline render function
            {
                instance.render = setupResult;
            }
        }
        else if (isObject(setupResult)) {
            if (isVNode(setupResult)) {
                warn(`setup() should not return VNodes directly - ` +
                    `return a render function instead.`);
            }
            // setup returned bindings.
            // assuming a render function compiled from template is present.
            {
                instance.devtoolsRawSetupState = setupResult;
            }
            instance.setupState = proxyRefs(setupResult);
            {
                exposeSetupStateOnRenderContext(instance);
            }
        }
        else if (setupResult !== undefined) {
            warn(`setup() should return an object. Received: ${setupResult === null ? 'null' : typeof setupResult}`);
        }
        finishComponentSetup(instance, isSSR);
    }
    let compile$1;
    let installWithProxy;
    /**
     * For runtime-dom to register the compiler.
     * Note the exported method uses any to avoid d.ts relying on the compiler types.
     */
    function registerRuntimeCompiler(_compile) {
        compile$1 = _compile;
        installWithProxy = i => {
            if (i.render._rc) {
                i.withProxy = new Proxy(i.ctx, RuntimeCompiledPublicInstanceProxyHandlers);
            }
        };
    }
    // dev only
    const isRuntimeOnly = () => !compile$1;
    function finishComponentSetup(instance, isSSR, skipOptions) {
        const Component = instance.type;
        // template / render function normalization
        // could be already set when returned from setup()
        if (!instance.render) {
            // only do on-the-fly compile if not in SSR - SSR on-the-fly compilation
            // is done by server-renderer
            if (!isSSR && compile$1 && !Component.render) {
                const template = Component.template ||
                    resolveMergedOptions(instance).template;
                if (template) {
                    {
                        startMeasure(instance, `compile`);
                    }
                    const { isCustomElement, compilerOptions } = instance.appContext.config;
                    const { delimiters, compilerOptions: componentCompilerOptions } = Component;
                    const finalCompilerOptions = extend(extend({
                        isCustomElement,
                        delimiters
                    }, compilerOptions), componentCompilerOptions);
                    Component.render = compile$1(template, finalCompilerOptions);
                    {
                        endMeasure(instance, `compile`);
                    }
                }
            }
            instance.render = (Component.render || NOOP);
            // for runtime-compiled render functions using `with` blocks, the render
            // proxy used needs a different `has` handler which is more performant and
            // also only allows a whitelist of globals to fallthrough.
            if (installWithProxy) {
                installWithProxy(instance);
            }
        }
        // support for 2.x options
        {
            setCurrentInstance(instance);
            pauseTracking();
            applyOptions(instance);
            resetTracking();
            unsetCurrentInstance();
        }
        // warn missing template/render
        // the runtime compilation of template in SSR is done by server-render
        if (!Component.render && instance.render === NOOP && !isSSR) {
            /* istanbul ignore if */
            if (!compile$1 && Component.template) {
                warn(`Component provided template option but ` +
                    `runtime compilation is not supported in this build of Vue.` +
                    (` Use "vue.global.js" instead.`
                                ) /* should not happen */);
            }
            else {
                warn(`Component is missing template or render function.`);
            }
        }
    }
    function createAttrsProxy(instance) {
        return new Proxy(instance.attrs, {
                get(target, key) {
                    markAttrsAccessed();
                    track(instance, "get" /* TrackOpTypes.GET */, '$attrs');
                    return target[key];
                },
                set() {
                    warn(`setupContext.attrs is readonly.`);
                    return false;
                },
                deleteProperty() {
                    warn(`setupContext.attrs is readonly.`);
                    return false;
                }
            }
            );
    }
    function createSetupContext(instance) {
        const expose = exposed => {
            {
                if (instance.exposed) {
                    warn(`expose() should be called only once per setup().`);
                }
                if (exposed != null) {
                    let exposedType = typeof exposed;
                    if (exposedType === 'object') {
                        if (isArray(exposed)) {
                            exposedType = 'array';
                        }
                        else if (isRef(exposed)) {
                            exposedType = 'ref';
                        }
                    }
                    if (exposedType !== 'object') {
                        warn(`expose() should be passed a plain object, received ${exposedType}.`);
                    }
                }
            }
            instance.exposed = exposed || {};
        };
        let attrs;
        {
            // We use getters in dev in case libs like test-utils overwrite instance
            // properties (overwrites should not be done in prod)
            return Object.freeze({
                get attrs() {
                    return attrs || (attrs = createAttrsProxy(instance));
                },
                get slots() {
                    return shallowReadonly(instance.slots);
                },
                get emit() {
                    return (event, ...args) => instance.emit(event, ...args);
                },
                expose
            });
        }
    }
    function getExposeProxy(instance) {
        if (instance.exposed) {
            return (instance.exposeProxy ||
                (instance.exposeProxy = new Proxy(proxyRefs(markRaw(instance.exposed)), {
                    get(target, key) {
                        if (key in target) {
                            return target[key];
                        }
                        else if (key in publicPropertiesMap) {
                            return publicPropertiesMap[key](instance);
                        }
                    },
                    has(target, key) {
                        return key in target || key in publicPropertiesMap;
                    }
                })));
        }
    }
    const classifyRE = /(?:^|[-_])(\w)/g;
    const classify = (str) => str.replace(classifyRE, c => c.toUpperCase()).replace(/[-_]/g, '');
    function getComponentName(Component, includeInferred = true) {
        return isFunction(Component)
            ? Component.displayName || Component.name
            : Component.name || (includeInferred && Component.__name);
    }
    /* istanbul ignore next */
    function formatComponentName(instance, Component, isRoot = false) {
        let name = getComponentName(Component);
        if (!name && Component.__file) {
            const match = Component.__file.match(/([^/\\]+)\.\w+$/);
            if (match) {
                name = match[1];
            }
        }
        if (!name && instance && instance.parent) {
            // try to infer the name based on reverse resolution
            const inferFromRegistry = (registry) => {
                for (const key in registry) {
                    if (registry[key] === Component) {
                        return key;
                    }
                }
            };
            name =
                inferFromRegistry(instance.components ||
                    instance.parent.type.components) || inferFromRegistry(instance.appContext.components);
        }
        return name ? classify(name) : isRoot ? `App` : `Anonymous`;
    }
    function isClassComponent(value) {
        return isFunction(value) && '__vccOpts' in value;
    }
  
    const computed = ((getterOrOptions, debugOptions) => {
        // @ts-ignore
        return computed$1(getterOrOptions, debugOptions, isInSSRComponentSetup);
    });
  
    // dev only
    const warnRuntimeUsage = (method) => warn(`${method}() is a compiler-hint helper that is only usable inside ` +
        `<script setup> of a single file component. Its arguments should be ` +
        `compiled away and passing it at runtime has no effect.`);
    // implementation
    function defineProps() {
        {
            warnRuntimeUsage(`defineProps`);
        }
        return null;
    }
    // implementation
    function defineEmits() {
        {
            warnRuntimeUsage(`defineEmits`);
        }
        return null;
    }
    /**
     * Vue `<script setup>` compiler macro for declaring a component's exposed
     * instance properties when it is accessed by a parent component via template
     * refs.
     *
     * `<script setup>` components are closed by default - i.e. variables inside
     * the `<script setup>` scope is not exposed to parent unless explicitly exposed
     * via `defineExpose`.
     *
     * This is only usable inside `<script setup>`, is compiled away in the
     * output and should **not** be actually called at runtime.
     */
    function defineExpose(exposed) {
        {
            warnRuntimeUsage(`defineExpose`);
        }
    }
    /**
     * Vue `<script setup>` compiler macro for providing props default values when
     * using type-based `defineProps` declaration.
     *
     * Example usage:
     * ```ts
     * withDefaults(defineProps<{
     *   size?: number
     *   labels?: string[]
     * }>(), {
     *   size: 3,
     *   labels: () => ['default label']
     * })
     * ```
     *
     * This is only usable inside `<script setup>`, is compiled away in the output
     * and should **not** be actually called at runtime.
     */
    function withDefaults(props, defaults) {
        {
            warnRuntimeUsage(`withDefaults`);
        }
        return null;
    }
    function useSlots() {
        return getContext().slots;
    }
    function useAttrs() {
        return getContext().attrs;
    }
    function getContext() {
        const i = getCurrentInstance();
        if (!i) {
            warn(`useContext() called without active instance.`);
        }
        return i.setupContext || (i.setupContext = createSetupContext(i));
    }
    /**
     * Runtime helper for merging default declarations. Imported by compiled code
     * only.
     * @internal
     */
    function mergeDefaults(raw, defaults) {
        const props = isArray(raw)
            ? raw.reduce((normalized, p) => ((normalized[p] = {}), normalized), {})
            : raw;
        for (const key in defaults) {
            const opt = props[key];
            if (opt) {
                if (isArray(opt) || isFunction(opt)) {
                    props[key] = { type: opt, default: defaults[key] };
                }
                else {
                    opt.default = defaults[key];
                }
            }
            else if (opt === null) {
                props[key] = { default: defaults[key] };
            }
            else {
                warn(`props default key "${key}" has no corresponding declaration.`);
            }
        }
        return props;
    }
    /**
     * Used to create a proxy for the rest element when destructuring props with
     * defineProps().
     * @internal
     */
    function createPropsRestProxy(props, excludedKeys) {
        const ret = {};
        for (const key in props) {
            if (!excludedKeys.includes(key)) {
                Object.defineProperty(ret, key, {
                    enumerable: true,
                    get: () => props[key]
                });
            }
        }
        return ret;
    }
    /**
     * `<script setup>` helper for persisting the current instance context over
     * async/await flows.
     *
     * `@vue/compiler-sfc` converts the following:
     *
     * ```ts
     * const x = await foo()
     * ```
     *
     * into:
     *
     * ```ts
     * let __temp, __restore
     * const x = (([__temp, __restore] = withAsyncContext(() => foo())),__temp=await __temp,__restore(),__temp)
     * ```
     * @internal
     */
    function withAsyncContext(getAwaitable) {
        const ctx = getCurrentInstance();
        if (!ctx) {
            warn(`withAsyncContext called without active current instance. ` +
                `This is likely a bug.`);
        }
        let awaitable = getAwaitable();
        unsetCurrentInstance();
        if (isPromise(awaitable)) {
            awaitable = awaitable.catch(e => {
                setCurrentInstance(ctx);
                throw e;
            });
        }
        return [awaitable, () => setCurrentInstance(ctx)];
    }
  
    // Actual implementation
    function h(type, propsOrChildren, children) {
        const l = arguments.length;
        if (l === 2) {
            if (isObject(propsOrChildren) && !isArray(propsOrChildren)) {
                // single vnode without props
                if (isVNode(propsOrChildren)) {
                    return createVNode(type, null, [propsOrChildren]);
                }
                // props without children
                return createVNode(type, propsOrChildren);
            }
            else {
                // omit props
                return createVNode(type, null, propsOrChildren);
            }
        }
        else {
            if (l > 3) {
                children = Array.prototype.slice.call(arguments, 2);
            }
            else if (l === 3 && isVNode(children)) {
                children = [children];
            }
            return createVNode(type, propsOrChildren, children);
        }
    }
  
    const ssrContextKey = Symbol(`ssrContext` );
    const useSSRContext = () => {
        {
            warn(`useSSRContext() is not supported in the global build.`);
        }
    };
  
    function initCustomFormatter() {
        /* eslint-disable no-restricted-globals */
        if (typeof window === 'undefined') {
            return;
        }
        const vueStyle = { style: 'color:#3ba776' };
        const numberStyle = { style: 'color:#0b1bc9' };
        const stringStyle = { style: 'color:#b62e24' };
        const keywordStyle = { style: 'color:#9d288c' };
        // custom formatter for Chrome
        // https://www.mattzeunert.com/2016/02/19/custom-chrome-devtools-object-formatters.html
        const formatter = {
            header(obj) {
                // TODO also format ComponentPublicInstance & ctx.slots/attrs in setup
                if (!isObject(obj)) {
                    return null;
                }
                if (obj.__isVue) {
                    return ['div', vueStyle, `VueInstance`];
                }
                else if (isRef(obj)) {
                    return [
                        'div',
                        {},
                        ['span', vueStyle, genRefFlag(obj)],
                        '<',
                        formatValue(obj.value),
                        `>`
                    ];
                }
                else if (isReactive(obj)) {
                    return [
                        'div',
                        {},
                        ['span', vueStyle, isShallow(obj) ? 'ShallowReactive' : 'Reactive'],
                        '<',
                        formatValue(obj),
                        `>${isReadonly(obj) ? ` (readonly)` : ``}`
                    ];
                }
                else if (isReadonly(obj)) {
                    return [
                        'div',
                        {},
                        ['span', vueStyle, isShallow(obj) ? 'ShallowReadonly' : 'Readonly'],
                        '<',
                        formatValue(obj),
                        '>'
                    ];
                }
                return null;
            },
            hasBody(obj) {
                return obj && obj.__isVue;
            },
            body(obj) {
                if (obj && obj.__isVue) {
                    return [
                        'div',
                        {},
                        ...formatInstance(obj.$)
                    ];
                }
            }
        };
        function formatInstance(instance) {
            const blocks = [];
            if (instance.type.props && instance.props) {
                blocks.push(createInstanceBlock('props', toRaw(instance.props)));
            }
            if (instance.setupState !== EMPTY_OBJ) {
                blocks.push(createInstanceBlock('setup', instance.setupState));
            }
            if (instance.data !== EMPTY_OBJ) {
                blocks.push(createInstanceBlock('data', toRaw(instance.data)));
            }
            const computed = extractKeys(instance, 'computed');
            if (computed) {
                blocks.push(createInstanceBlock('computed', computed));
            }
            const injected = extractKeys(instance, 'inject');
            if (injected) {
                blocks.push(createInstanceBlock('injected', injected));
            }
            blocks.push([
                'div',
                {},
                [
                    'span',
                    {
                        style: keywordStyle.style + ';opacity:0.66'
                    },
                    '$ (internal): '
                ],
                ['object', { object: instance }]
            ]);
            return blocks;
        }
        function createInstanceBlock(type, target) {
            target = extend({}, target);
            if (!Object.keys(target).length) {
                return ['span', {}];
            }
            return [
                'div',
                { style: 'line-height:1.25em;margin-bottom:0.6em' },
                [
                    'div',
                    {
                        style: 'color:#476582'
                    },
                    type
                ],
                [
                    'div',
                    {
                        style: 'padding-left:1.25em'
                    },
                    ...Object.keys(target).map(key => {
                        return [
                            'div',
                            {},
                            ['span', keywordStyle, key + ': '],
                            formatValue(target[key], false)
                        ];
                    })
                ]
            ];
        }
        function formatValue(v, asRaw = true) {
            if (typeof v === 'number') {
                return ['span', numberStyle, v];
            }
            else if (typeof v === 'string') {
                return ['span', stringStyle, JSON.stringify(v)];
            }
            else if (typeof v === 'boolean') {
                return ['span', keywordStyle, v];
            }
            else if (isObject(v)) {
                return ['object', { object: asRaw ? toRaw(v) : v }];
            }
            else {
                return ['span', stringStyle, String(v)];
            }
        }
        function extractKeys(instance, type) {
            const Comp = instance.type;
            if (isFunction(Comp)) {
                return;
            }
            const extracted = {};
            for (const key in instance.ctx) {
                if (isKeyOfType(Comp, key, type)) {
                    extracted[key] = instance.ctx[key];
                }
            }
            return extracted;
        }
        function isKeyOfType(Comp, key, type) {
            const opts = Comp[type];
            if ((isArray(opts) && opts.includes(key)) ||
                (isObject(opts) && key in opts)) {
                return true;
            }
            if (Comp.extends && isKeyOfType(Comp.extends, key, type)) {
                return true;
            }
            if (Comp.mixins && Comp.mixins.some(m => isKeyOfType(m, key, type))) {
                return true;
            }
        }
        function genRefFlag(v) {
            if (isShallow(v)) {
                return `ShallowRef`;
            }
            if (v.effect) {
                return `ComputedRef`;
            }
            return `Ref`;
        }
        if (window.devtoolsFormatters) {
            window.devtoolsFormatters.push(formatter);
        }
        else {
            window.devtoolsFormatters = [formatter];
        }
    }
  
    function withMemo(memo, render, cache, index) {
        const cached = cache[index];
        if (cached && isMemoSame(cached, memo)) {
            return cached;
        }
        const ret = render();
        // shallow clone
        ret.memo = memo.slice();
        return (cache[index] = ret);
    }
    function isMemoSame(cached, memo) {
        const prev = cached.memo;
        if (prev.length != memo.length) {
            return false;
        }
        for (let i = 0; i < prev.length; i++) {
            if (hasChanged(prev[i], memo[i])) {
                return false;
            }
        }
        // make sure to let parent block track it when returning cached
        if (isBlockTreeEnabled > 0 && currentBlock) {
            currentBlock.push(cached);
        }
        return true;
    }
  
    // Core API ------------------------------------------------------------------
    const version = "3.2.47";
    /**
     * SSR utils for \@vue/server-renderer. Only exposed in ssr-possible builds.
     * @internal
     */
    const ssrUtils = (null);
    /**
     * @internal only exposed in compat builds
     */
    const resolveFilter = null;
    /**
     * @internal only exposed in compat builds.
     */
    const compatUtils = (null);
  
    const svgNS = 'http://www.w3.org/2000/svg';
    const doc = (typeof document !== 'undefined' ? document : null);
    const templateContainer = doc && /*#__PURE__*/ doc.createElement('template');
    const nodeOps = {
        insert: (child, parent, anchor) => {
            parent.insertBefore(child, anchor || null);
        },
        remove: child => {
            const parent = child.parentNode;
            if (parent) {
                parent.removeChild(child);
            }
        },
        createElement: (tag, isSVG, is, props) => {
            const el = isSVG
                ? doc.createElementNS(svgNS, tag)
                : doc.createElement(tag, is ? { is } : undefined);
            if (tag === 'select' && props && props.multiple != null) {
                el.setAttribute('multiple', props.multiple);
            }
            return el;
        },
        createText: text => doc.createTextNode(text),
        createComment: text => doc.createComment(text),
        setText: (node, text) => {
            node.nodeValue = text;
        },
        setElementText: (el, text) => {
            el.textContent = text;
        },
        parentNode: node => node.parentNode,
        nextSibling: node => node.nextSibling,
        querySelector: selector => doc.querySelector(selector),
        setScopeId(el, id) {
            el.setAttribute(id, '');
        },
        // __UNSAFE__
        // Reason: innerHTML.
        // Static content here can only come from compiled templates.
        // As long as the user only uses trusted templates, this is safe.
        insertStaticContent(content, parent, anchor, isSVG, start, end) {
            // <parent> before | first ... last | anchor </parent>
            const before = anchor ? anchor.previousSibling : parent.lastChild;
            // #5308 can only take cached path if:
            // - has a single root node
            // - nextSibling info is still available
            if (start && (start === end || start.nextSibling)) {
                // cached
                while (true) {
                    parent.insertBefore(start.cloneNode(true), anchor);
                    if (start === end || !(start = start.nextSibling))
                        break;
                }
            }
            else {
                // fresh insert
                templateContainer.innerHTML = isSVG ? `<svg>${content}</svg>` : content;
                const template = templateContainer.content;
                if (isSVG) {
                    // remove outer svg wrapper
                    const wrapper = template.firstChild;
                    while (wrapper.firstChild) {
                        template.appendChild(wrapper.firstChild);
                    }
                    template.removeChild(wrapper);
                }
                parent.insertBefore(template, anchor);
            }
            return [
                // first
                before ? before.nextSibling : parent.firstChild,
                // last
                anchor ? anchor.previousSibling : parent.lastChild
            ];
        }
    };
  
    // compiler should normalize class + :class bindings on the same element
    // into a single binding ['staticClass', dynamic]
    function patchClass(el, value, isSVG) {
        // directly setting className should be faster than setAttribute in theory
        // if this is an element during a transition, take the temporary transition
        // classes into account.
        const transitionClasses = el._vtc;
        if (transitionClasses) {
            value = (value ? [value, ...transitionClasses] : [...transitionClasses]).join(' ');
        }
        if (value == null) {
            el.removeAttribute('class');
        }
        else if (isSVG) {
            el.setAttribute('class', value);
        }
        else {
            el.className = value;
        }
    }
  
    function patchStyle(el, prev, next) {
        const style = el.style;
        const isCssString = isString(next);
        if (next && !isCssString) {
            if (prev && !isString(prev)) {
                for (const key in prev) {
                    if (next[key] == null) {
                        setStyle(style, key, '');
                    }
                }
            }
            for (const key in next) {
                setStyle(style, key, next[key]);
            }
        }
        else {
            const currentDisplay = style.display;
            if (isCssString) {
                if (prev !== next) {
                    style.cssText = next;
                }
            }
            else if (prev) {
                el.removeAttribute('style');
            }
            // indicates that the `display` of the element is controlled by `v-show`,
            // so we always keep the current `display` value regardless of the `style`
            // value, thus handing over control to `v-show`.
            if ('_vod' in el) {
                style.display = currentDisplay;
            }
        }
    }
    const semicolonRE = /[^\\];\s*$/;
    const importantRE = /\s*!important$/;
    function setStyle(style, name, val) {
        if (isArray(val)) {
            val.forEach(v => setStyle(style, name, v));
        }
        else {
            if (val == null)
                val = '';
            {
                if (semicolonRE.test(val)) {
                    warn(`Unexpected semicolon at the end of '${name}' style value: '${val}'`);
                }
            }
            if (name.startsWith('--')) {
                // custom property definition
                style.setProperty(name, val);
            }
            else {
                const prefixed = autoPrefix(style, name);
                if (importantRE.test(val)) {
                    // !important
                    style.setProperty(hyphenate(prefixed), val.replace(importantRE, ''), 'important');
                }
                else {
                    style[prefixed] = val;
                }
            }
        }
    }
    const prefixes = ['Webkit', 'Moz', 'ms'];
    const prefixCache = {};
    function autoPrefix(style, rawName) {
        const cached = prefixCache[rawName];
        if (cached) {
            return cached;
        }
        let name = camelize(rawName);
        if (name !== 'filter' && name in style) {
            return (prefixCache[rawName] = name);
        }
        name = capitalize(name);
        for (let i = 0; i < prefixes.length; i++) {
            const prefixed = prefixes[i] + name;
            if (prefixed in style) {
                return (prefixCache[rawName] = prefixed);
            }
        }
        return rawName;
    }
  
    const xlinkNS = 'http://www.w3.org/1999/xlink';
    function patchAttr(el, key, value, isSVG, instance) {
        if (isSVG && key.startsWith('xlink:')) {
            if (value == null) {
                el.removeAttributeNS(xlinkNS, key.slice(6, key.length));
            }
            else {
                el.setAttributeNS(xlinkNS, key, value);
            }
        }
        else {
            // note we are only checking boolean attributes that don't have a
            // corresponding dom prop of the same name here.
            const isBoolean = isSpecialBooleanAttr(key);
            if (value == null || (isBoolean && !includeBooleanAttr(value))) {
                el.removeAttribute(key);
            }
            else {
                el.setAttribute(key, isBoolean ? '' : value);
            }
        }
    }
  
    // __UNSAFE__
    // functions. The user is responsible for using them with only trusted content.
    function patchDOMProp(el, key, value, 
    // the following args are passed only due to potential innerHTML/textContent
    // overriding existing VNodes, in which case the old tree must be properly
    // unmounted.
    prevChildren, parentComponent, parentSuspense, unmountChildren) {
        if (key === 'innerHTML' || key === 'textContent') {
            if (prevChildren) {
                unmountChildren(prevChildren, parentComponent, parentSuspense);
            }
            el[key] = value == null ? '' : value;
            return;
        }
        if (key === 'value' &&
            el.tagName !== 'PROGRESS' &&
            // custom elements may use _value internally
            !el.tagName.includes('-')) {
            // store value as _value as well since
            // non-string values will be stringified.
            el._value = value;
            const newValue = value == null ? '' : value;
            if (el.value !== newValue ||
                // #4956: always set for OPTION elements because its value falls back to
                // textContent if no value attribute is present. And setting .value for
                // OPTION has no side effect
                el.tagName === 'OPTION') {
                el.value = newValue;
            }
            if (value == null) {
                el.removeAttribute(key);
            }
            return;
        }
        let needRemove = false;
        if (value === '' || value == null) {
            const type = typeof el[key];
            if (type === 'boolean') {
                // e.g. <select multiple> compiles to { multiple: '' }
                value = includeBooleanAttr(value);
            }
            else if (value == null && type === 'string') {
                // e.g. <div :id="null">
                value = '';
                needRemove = true;
            }
            else if (type === 'number') {
                // e.g. <img :width="null">
                value = 0;
                needRemove = true;
            }
        }
        // some properties perform value validation and throw,
        // some properties has getter, no setter, will error in 'use strict'
        // eg. <select :type="null"></select> <select :willValidate="null"></select>
        try {
            el[key] = value;
        }
        catch (e) {
            // do not warn if value is auto-coerced from nullish values
            if (!needRemove) {
                warn(`Failed setting prop "${key}" on <${el.tagName.toLowerCase()}>: ` +
                    `value ${value} is invalid.`, e);
            }
        }
        needRemove && el.removeAttribute(key);
    }
  
    function addEventListener(el, event, handler, options) {
        el.addEventListener(event, handler, options);
    }
    function removeEventListener(el, event, handler, options) {
        el.removeEventListener(event, handler, options);
    }
    function patchEvent(el, rawName, prevValue, nextValue, instance = null) {
        // vei = vue event invokers
        const invokers = el._vei || (el._vei = {});
        const existingInvoker = invokers[rawName];
        if (nextValue && existingInvoker) {
            // patch
            existingInvoker.value = nextValue;
        }
        else {
            const [name, options] = parseName(rawName);
            if (nextValue) {
                // add
                const invoker = (invokers[rawName] = createInvoker(nextValue, instance));
                addEventListener(el, name, invoker, options);
            }
            else if (existingInvoker) {
                // remove
                removeEventListener(el, name, existingInvoker, options);
                invokers[rawName] = undefined;
            }
        }
    }
    const optionsModifierRE = /(?:Once|Passive|Capture)$/;
    function parseName(name) {
        let options;
        if (optionsModifierRE.test(name)) {
            options = {};
            let m;
            while ((m = name.match(optionsModifierRE))) {
                name = name.slice(0, name.length - m[0].length);
                options[m[0].toLowerCase()] = true;
            }
        }
        const event = name[2] === ':' ? name.slice(3) : hyphenate(name.slice(2));
        return [event, options];
    }
    // To avoid the overhead of repeatedly calling Date.now(), we cache
    // and use the same timestamp for all event listeners attached in the same tick.
    let cachedNow = 0;
    const p = /*#__PURE__*/ Promise.resolve();
    const getNow = () => cachedNow || (p.then(() => (cachedNow = 0)), (cachedNow = Date.now()));
    function createInvoker(initialValue, instance) {
        const invoker = (e) => {
            // async edge case vuejs/vue#6566
            // inner click event triggers patch, event handler
            // attached to outer element during patch, and triggered again. This
            // happens because browsers fire microtask ticks between event propagation.
            // this no longer happens for templates in Vue 3, but could still be
            // theoretically possible for hand-written render functions.
            // the solution: we save the timestamp when a handler is attached,
            // and also attach the timestamp to any event that was handled by vue
            // for the first time (to avoid inconsistent event timestamp implementations
            // or events fired from iframes, e.g. #2513)
            // The handler would only fire if the event passed to it was fired
            // AFTER it was attached.
            if (!e._vts) {
                e._vts = Date.now();
            }
            else if (e._vts <= invoker.attached) {
                return;
            }
            callWithAsyncErrorHandling(patchStopImmediatePropagation(e, invoker.value), instance, 5 /* ErrorCodes.NATIVE_EVENT_HANDLER */, [e]);
        };
        invoker.value = initialValue;
        invoker.attached = getNow();
        return invoker;
    }
    function patchStopImmediatePropagation(e, value) {
        if (isArray(value)) {
            const originalStop = e.stopImmediatePropagation;
            e.stopImmediatePropagation = () => {
                originalStop.call(e);
                e._stopped = true;
            };
            return value.map(fn => (e) => !e._stopped && fn && fn(e));
        }
        else {
            return value;
        }
    }
  
    const nativeOnRE = /^on[a-z]/;
    const patchProp = (el, key, prevValue, nextValue, isSVG = false, prevChildren, parentComponent, parentSuspense, unmountChildren) => {
        if (key === 'class') {
            patchClass(el, nextValue, isSVG);
        }
        else if (key === 'style') {
            patchStyle(el, prevValue, nextValue);
        }
        else if (isOn(key)) {
            // ignore v-model listeners
            if (!isModelListener(key)) {
                patchEvent(el, key, prevValue, nextValue, parentComponent);
            }
        }
        else if (key[0] === '.'
            ? ((key = key.slice(1)), true)
            : key[0] === '^'
                ? ((key = key.slice(1)), false)
                : shouldSetAsProp(el, key, nextValue, isSVG)) {
            patchDOMProp(el, key, nextValue, prevChildren, parentComponent, parentSuspense, unmountChildren);
        }
        else {
            // special case for <input v-model type="checkbox"> with
            // :true-value & :false-value
            // store value as dom properties since non-string values will be
            // stringified.
            if (key === 'true-value') {
                el._trueValue = nextValue;
            }
            else if (key === 'false-value') {
                el._falseValue = nextValue;
            }
            patchAttr(el, key, nextValue, isSVG);
        }
    };
    function shouldSetAsProp(el, key, value, isSVG) {
        if (isSVG) {
            // most keys must be set as attribute on svg elements to work
            // ...except innerHTML & textContent
            if (key === 'innerHTML' || key === 'textContent') {
                return true;
            }
            // or native onclick with function values
            if (key in el && nativeOnRE.test(key) && isFunction(value)) {
                return true;
            }
            return false;
        }
        // these are enumerated attrs, however their corresponding DOM properties
        // are actually booleans - this leads to setting it with a string "false"
        // value leading it to be coerced to `true`, so we need to always treat
        // them as attributes.
        // Note that `contentEditable` doesn't have this problem: its DOM
        // property is also enumerated string values.
        if (key === 'spellcheck' || key === 'draggable' || key === 'translate') {
            return false;
        }
        // #1787, #2840 form property on form elements is readonly and must be set as
        // attribute.
        if (key === 'form') {
            return false;
        }
        // #1526 <input list> must be set as attribute
        if (key === 'list' && el.tagName === 'INPUT') {
            return false;
        }
        // #2766 <textarea type> must be set as attribute
        if (key === 'type' && el.tagName === 'TEXTAREA') {
            return false;
        }
        // native onclick with string value, must be set as attribute
        if (nativeOnRE.test(key) && isString(value)) {
            return false;
        }
        return key in el;
    }
  
    function defineCustomElement(options, hydrate) {
        const Comp = defineComponent(options);
        class VueCustomElement extends VueElement {
            constructor(initialProps) {
                super(Comp, initialProps, hydrate);
            }
        }
        VueCustomElement.def = Comp;
        return VueCustomElement;
    }
    const defineSSRCustomElement = ((options) => {
        // @ts-ignore
        return defineCustomElement(options, hydrate);
    });
    const BaseClass = (typeof HTMLElement !== 'undefined' ? HTMLElement : class {
    });
    class VueElement extends BaseClass {
        constructor(_def, _props = {}, hydrate) {
            super();
            this._def = _def;
            this._props = _props;
            /**
             * @internal
             */
            this._instance = null;
            this._connected = false;
            this._resolved = false;
            this._numberProps = null;
            if (this.shadowRoot && hydrate) {
                hydrate(this._createVNode(), this.shadowRoot);
            }
            else {
                if (this.shadowRoot) {
                    warn(`Custom element has pre-rendered declarative shadow root but is not ` +
                        `defined as hydratable. Use \`defineSSRCustomElement\`.`);
                }
                this.attachShadow({ mode: 'open' });
                if (!this._def.__asyncLoader) {
                    // for sync component defs we can immediately resolve props
                    this._resolveProps(this._def);
                }
            }
        }
        connectedCallback() {
            this._connected = true;
            if (!this._instance) {
                if (this._resolved) {
                    this._update();
                }
                else {
                    this._resolveDef();
                }
            }
        }
        disconnectedCallback() {
            this._connected = false;
            nextTick(() => {
                if (!this._connected) {
                    render(null, this.shadowRoot);
                    this._instance = null;
                }
            });
        }
        /**
         * resolve inner component definition (handle possible async component)
         */
        _resolveDef() {
            this._resolved = true;
            // set initial attrs
            for (let i = 0; i < this.attributes.length; i++) {
                this._setAttr(this.attributes[i].name);
            }
            // watch future attr changes
            new MutationObserver(mutations => {
                for (const m of mutations) {
                    this._setAttr(m.attributeName);
                }
            }).observe(this, { attributes: true });
            const resolve = (def, isAsync = false) => {
                const { props, styles } = def;
                // cast Number-type props set before resolve
                let numberProps;
                if (props && !isArray(props)) {
                    for (const key in props) {
                        const opt = props[key];
                        if (opt === Number || (opt && opt.type === Number)) {
                            if (key in this._props) {
                                this._props[key] = toNumber(this._props[key]);
                            }
                            (numberProps || (numberProps = Object.create(null)))[camelize(key)] = true;
                        }
                    }
                }
                this._numberProps = numberProps;
                if (isAsync) {
                    // defining getter/setters on prototype
                    // for sync defs, this already happened in the constructor
                    this._resolveProps(def);
                }
                // apply CSS
                this._applyStyles(styles);
                // initial render
                this._update();
            };
            const asyncDef = this._def.__asyncLoader;
            if (asyncDef) {
                asyncDef().then(def => resolve(def, true));
            }
            else {
                resolve(this._def);
            }
        }
        _resolveProps(def) {
            const { props } = def;
            const declaredPropKeys = isArray(props) ? props : Object.keys(props || {});
            // check if there are props set pre-upgrade or connect
            for (const key of Object.keys(this)) {
                if (key[0] !== '_' && declaredPropKeys.includes(key)) {
                    this._setProp(key, this[key], true, false);
                }
            }
            // defining getter/setters on prototype
            for (const key of declaredPropKeys.map(camelize)) {
                Object.defineProperty(this, key, {
                    get() {
                        return this._getProp(key);
                    },
                    set(val) {
                        this._setProp(key, val);
                    }
                });
            }
        }
        _setAttr(key) {
            let value = this.getAttribute(key);
            const camelKey = camelize(key);
            if (this._numberProps && this._numberProps[camelKey]) {
                value = toNumber(value);
            }
            this._setProp(camelKey, value, false);
        }
        /**
         * @internal
         */
        _getProp(key) {
            return this._props[key];
        }
        /**
         * @internal
         */
        _setProp(key, val, shouldReflect = true, shouldUpdate = true) {
            if (val !== this._props[key]) {
                this._props[key] = val;
                if (shouldUpdate && this._instance) {
                    this._update();
                }
                // reflect
                if (shouldReflect) {
                    if (val === true) {
                        this.setAttribute(hyphenate(key), '');
                    }
                    else if (typeof val === 'string' || typeof val === 'number') {
                        this.setAttribute(hyphenate(key), val + '');
                    }
                    else if (!val) {
                        this.removeAttribute(hyphenate(key));
                    }
                }
            }
        }
        _update() {
            render(this._createVNode(), this.shadowRoot);
        }
        _createVNode() {
            const vnode = createVNode(this._def, extend({}, this._props));
            if (!this._instance) {
                vnode.ce = instance => {
                    this._instance = instance;
                    instance.isCE = true;
                    // HMR
                    {
                        instance.ceReload = newStyles => {
                            // always reset styles
                            if (this._styles) {
                                this._styles.forEach(s => this.shadowRoot.removeChild(s));
                                this._styles.length = 0;
                            }
                            this._applyStyles(newStyles);
                            this._instance = null;
                            this._update();
                        };
                    }
                    const dispatch = (event, args) => {
                        this.dispatchEvent(new CustomEvent(event, {
                            detail: args
                        }));
                    };
                    // intercept emit
                    instance.emit = (event, ...args) => {
                        // dispatch both the raw and hyphenated versions of an event
                        // to match Vue behavior
                        dispatch(event, args);
                        if (hyphenate(event) !== event) {
                            dispatch(hyphenate(event), args);
                        }
                    };
                    // locate nearest Vue custom element parent for provide/inject
                    let parent = this;
                    while ((parent =
                        parent && (parent.parentNode || parent.host))) {
                        if (parent instanceof VueElement) {
                            instance.parent = parent._instance;
                            instance.provides = parent._instance.provides;
                            break;
                        }
                    }
                };
            }
            return vnode;
        }
        _applyStyles(styles) {
            if (styles) {
                styles.forEach(css => {
                    const s = document.createElement('style');
                    s.textContent = css;
                    this.shadowRoot.appendChild(s);
                    // record for HMR
                    {
                        (this._styles || (this._styles = [])).push(s);
                    }
                });
            }
        }
    }
  
    function useCssModule(name = '$style') {
        /* istanbul ignore else */
        {
            {
                warn(`useCssModule() is not supported in the global build.`);
            }
            return EMPTY_OBJ;
        }
    }
  
    /**
     * Runtime helper for SFC's CSS variable injection feature.
     * @private
     */
    function useCssVars(getter) {
        const instance = getCurrentInstance();
        /* istanbul ignore next */
        if (!instance) {
            warn(`useCssVars is called without current active component instance.`);
            return;
        }
        const updateTeleports = (instance.ut = (vars = getter(instance.proxy)) => {
            Array.from(document.querySelectorAll(`[data-v-owner="${instance.uid}"]`)).forEach(node => setVarsOnNode(node, vars));
        });
        const setVars = () => {
            const vars = getter(instance.proxy);
            setVarsOnVNode(instance.subTree, vars);
            updateTeleports(vars);
        };
        watchPostEffect(setVars);
        onMounted(() => {
            const ob = new MutationObserver(setVars);
            ob.observe(instance.subTree.el.parentNode, { childList: true });
            onUnmounted(() => ob.disconnect());
        });
    }
    function setVarsOnVNode(vnode, vars) {
        if (vnode.shapeFlag & 128 /* ShapeFlags.SUSPENSE */) {
            const suspense = vnode.suspense;
            vnode = suspense.activeBranch;
            if (suspense.pendingBranch && !suspense.isHydrating) {
                suspense.effects.push(() => {
                    setVarsOnVNode(suspense.activeBranch, vars);
                });
            }
        }
        // drill down HOCs until it's a non-component vnode
        while (vnode.component) {
            vnode = vnode.component.subTree;
        }
        if (vnode.shapeFlag & 1 /* ShapeFlags.ELEMENT */ && vnode.el) {
            setVarsOnNode(vnode.el, vars);
        }
        else if (vnode.type === Fragment) {
            vnode.children.forEach(c => setVarsOnVNode(c, vars));
        }
        else if (vnode.type === Static) {
            let { el, anchor } = vnode;
            while (el) {
                setVarsOnNode(el, vars);
                if (el === anchor)
                    break;
                el = el.nextSibling;
            }
        }
    }
    function setVarsOnNode(el, vars) {
        if (el.nodeType === 1) {
            const style = el.style;
            for (const key in vars) {
                style.setProperty(`--${key}`, vars[key]);
            }
        }
    }
  
    const TRANSITION$1 = 'transition';
    const ANIMATION = 'animation';
    // DOM Transition is a higher-order-component based on the platform-agnostic
    // base Transition component, with DOM-specific logic.
    const Transition = (props, { slots }) => h(BaseTransition, resolveTransitionProps(props), slots);
    Transition.displayName = 'Transition';
    const DOMTransitionPropsValidators = {
        name: String,
        type: String,
        css: {
            type: Boolean,
            default: true
        },
        duration: [String, Number, Object],
        enterFromClass: String,
        enterActiveClass: String,
        enterToClass: String,
        appearFromClass: String,
        appearActiveClass: String,
        appearToClass: String,
        leaveFromClass: String,
        leaveActiveClass: String,
        leaveToClass: String
    };
    const TransitionPropsValidators = (Transition.props =
        /*#__PURE__*/ extend({}, BaseTransition.props, DOMTransitionPropsValidators));
    /**
     * #3227 Incoming hooks may be merged into arrays when wrapping Transition
     * with custom HOCs.
     */
    const callHook = (hook, args = []) => {
        if (isArray(hook)) {
            hook.forEach(h => h(...args));
        }
        else if (hook) {
            hook(...args);
        }
    };
    /**
     * Check if a hook expects a callback (2nd arg), which means the user
     * intends to explicitly control the end of the transition.
     */
    const hasExplicitCallback = (hook) => {
        return hook
            ? isArray(hook)
                ? hook.some(h => h.length > 1)
                : hook.length > 1
            : false;
    };
    function resolveTransitionProps(rawProps) {
        const baseProps = {};
        for (const key in rawProps) {
            if (!(key in DOMTransitionPropsValidators)) {
                baseProps[key] = rawProps[key];
            }
        }
        if (rawProps.css === false) {
            return baseProps;
        }
        const { name = 'v', type, duration, enterFromClass = `${name}-enter-from`, enterActiveClass = `${name}-enter-active`, enterToClass = `${name}-enter-to`, appearFromClass = enterFromClass, appearActiveClass = enterActiveClass, appearToClass = enterToClass, leaveFromClass = `${name}-leave-from`, leaveActiveClass = `${name}-leave-active`, leaveToClass = `${name}-leave-to` } = rawProps;
        const durations = normalizeDuration(duration);
        const enterDuration = durations && durations[0];
        const leaveDuration = durations && durations[1];
        const { onBeforeEnter, onEnter, onEnterCancelled, onLeave, onLeaveCancelled, onBeforeAppear = onBeforeEnter, onAppear = onEnter, onAppearCancelled = onEnterCancelled } = baseProps;
        const finishEnter = (el, isAppear, done) => {
            removeTransitionClass(el, isAppear ? appearToClass : enterToClass);
            removeTransitionClass(el, isAppear ? appearActiveClass : enterActiveClass);
            done && done();
        };
        const finishLeave = (el, done) => {
            el._isLeaving = false;
            removeTransitionClass(el, leaveFromClass);
            removeTransitionClass(el, leaveToClass);
            removeTransitionClass(el, leaveActiveClass);
            done && done();
        };
        const makeEnterHook = (isAppear) => {
            return (el, done) => {
                const hook = isAppear ? onAppear : onEnter;
                const resolve = () => finishEnter(el, isAppear, done);
                callHook(hook, [el, resolve]);
                nextFrame(() => {
                    removeTransitionClass(el, isAppear ? appearFromClass : enterFromClass);
                    addTransitionClass(el, isAppear ? appearToClass : enterToClass);
                    if (!hasExplicitCallback(hook)) {
                        whenTransitionEnds(el, type, enterDuration, resolve);
                    }
                });
            };
        };
        return extend(baseProps, {
            onBeforeEnter(el) {
                callHook(onBeforeEnter, [el]);
                addTransitionClass(el, enterFromClass);
                addTransitionClass(el, enterActiveClass);
            },
            onBeforeAppear(el) {
                callHook(onBeforeAppear, [el]);
                addTransitionClass(el, appearFromClass);
                addTransitionClass(el, appearActiveClass);
            },
            onEnter: makeEnterHook(false),
            onAppear: makeEnterHook(true),
            onLeave(el, done) {
                el._isLeaving = true;
                const resolve = () => finishLeave(el, done);
                addTransitionClass(el, leaveFromClass);
                // force reflow so *-leave-from classes immediately take effect (#2593)
                forceReflow();
                addTransitionClass(el, leaveActiveClass);
                nextFrame(() => {
                    if (!el._isLeaving) {
                        // cancelled
                        return;
                    }
                    removeTransitionClass(el, leaveFromClass);
                    addTransitionClass(el, leaveToClass);
                    if (!hasExplicitCallback(onLeave)) {
                        whenTransitionEnds(el, type, leaveDuration, resolve);
                    }
                });
                callHook(onLeave, [el, resolve]);
            },
            onEnterCancelled(el) {
                finishEnter(el, false);
                callHook(onEnterCancelled, [el]);
            },
            onAppearCancelled(el) {
                finishEnter(el, true);
                callHook(onAppearCancelled, [el]);
            },
            onLeaveCancelled(el) {
                finishLeave(el);
                callHook(onLeaveCancelled, [el]);
            }
        });
    }
    function normalizeDuration(duration) {
        if (duration == null) {
            return null;
        }
        else if (isObject(duration)) {
            return [NumberOf(duration.enter), NumberOf(duration.leave)];
        }
        else {
            const n = NumberOf(duration);
            return [n, n];
        }
    }
    function NumberOf(val) {
        const res = toNumber(val);
        {
            assertNumber(res, '<transition> explicit duration');
        }
        return res;
    }
    function addTransitionClass(el, cls) {
        cls.split(/\s+/).forEach(c => c && el.classList.add(c));
        (el._vtc ||
            (el._vtc = new Set())).add(cls);
    }
    function removeTransitionClass(el, cls) {
        cls.split(/\s+/).forEach(c => c && el.classList.remove(c));
        const { _vtc } = el;
        if (_vtc) {
            _vtc.delete(cls);
            if (!_vtc.size) {
                el._vtc = undefined;
            }
        }
    }
    function nextFrame(cb) {
        requestAnimationFrame(() => {
            requestAnimationFrame(cb);
        });
    }
    let endId = 0;
    function whenTransitionEnds(el, expectedType, explicitTimeout, resolve) {
        const id = (el._endId = ++endId);
        const resolveIfNotStale = () => {
            if (id === el._endId) {
                resolve();
            }
        };
        if (explicitTimeout) {
            return setTimeout(resolveIfNotStale, explicitTimeout);
        }
        const { type, timeout, propCount } = getTransitionInfo(el, expectedType);
        if (!type) {
            return resolve();
        }
        const endEvent = type + 'end';
        let ended = 0;
        const end = () => {
            el.removeEventListener(endEvent, onEnd);
            resolveIfNotStale();
        };
        const onEnd = (e) => {
            if (e.target === el && ++ended >= propCount) {
                end();
            }
        };
        setTimeout(() => {
            if (ended < propCount) {
                end();
            }
        }, timeout + 1);
        el.addEventListener(endEvent, onEnd);
    }
    function getTransitionInfo(el, expectedType) {
        const styles = window.getComputedStyle(el);
        // JSDOM may return undefined for transition properties
        const getStyleProperties = (key) => (styles[key] || '').split(', ');
        const transitionDelays = getStyleProperties(`${TRANSITION$1}Delay`);
        const transitionDurations = getStyleProperties(`${TRANSITION$1}Duration`);
        const transitionTimeout = getTimeout(transitionDelays, transitionDurations);
        const animationDelays = getStyleProperties(`${ANIMATION}Delay`);
        const animationDurations = getStyleProperties(`${ANIMATION}Duration`);
        const animationTimeout = getTimeout(animationDelays, animationDurations);
        let type = null;
        let timeout = 0;
        let propCount = 0;
        /* istanbul ignore if */
        if (expectedType === TRANSITION$1) {
            if (transitionTimeout > 0) {
                type = TRANSITION$1;
                timeout = transitionTimeout;
                propCount = transitionDurations.length;
            }
        }
        else if (expectedType === ANIMATION) {
            if (animationTimeout > 0) {
                type = ANIMATION;
                timeout = animationTimeout;
                propCount = animationDurations.length;
            }
        }
        else {
            timeout = Math.max(transitionTimeout, animationTimeout);
            type =
                timeout > 0
                    ? transitionTimeout > animationTimeout
                        ? TRANSITION$1
                        : ANIMATION
                    : null;
            propCount = type
                ? type === TRANSITION$1
                    ? transitionDurations.length
                    : animationDurations.length
                : 0;
        }
        const hasTransform = type === TRANSITION$1 &&
            /\b(transform|all)(,|$)/.test(getStyleProperties(`${TRANSITION$1}Property`).toString());
        return {
            type,
            timeout,
            propCount,
            hasTransform
        };
    }
    function getTimeout(delays, durations) {
        while (delays.length < durations.length) {
            delays = delays.concat(delays);
        }
        return Math.max(...durations.map((d, i) => toMs(d) + toMs(delays[i])));
    }
    // Old versions of Chromium (below 61.0.3163.100) formats floating pointer
    // numbers in a locale-dependent way, using a comma instead of a dot.
    // If comma is not replaced with a dot, the input will be rounded down
    // (i.e. acting as a floor function) causing unexpected behaviors
    function toMs(s) {
        return Number(s.slice(0, -1).replace(',', '.')) * 1000;
    }
    // synchronously force layout to put elements into a certain state
    function forceReflow() {
        return document.body.offsetHeight;
    }
  
    const positionMap = new WeakMap();
    const newPositionMap = new WeakMap();
    const TransitionGroupImpl = {
        name: 'TransitionGroup',
        props: /*#__PURE__*/ extend({}, TransitionPropsValidators, {
            tag: String,
            moveClass: String
        }),
        setup(props, { slots }) {
            const instance = getCurrentInstance();
            const state = useTransitionState();
            let prevChildren;
            let children;
            onUpdated(() => {
                // children is guaranteed to exist after initial render
                if (!prevChildren.length) {
                    return;
                }
                const moveClass = props.moveClass || `${props.name || 'v'}-move`;
                if (!hasCSSTransform(prevChildren[0].el, instance.vnode.el, moveClass)) {
                    return;
                }
                // we divide the work into three loops to avoid mixing DOM reads and writes
                // in each iteration - which helps prevent layout thrashing.
                prevChildren.forEach(callPendingCbs);
                prevChildren.forEach(recordPosition);
                const movedChildren = prevChildren.filter(applyTranslation);
                // force reflow to put everything in position
                forceReflow();
                movedChildren.forEach(c => {
                    const el = c.el;
                    const style = el.style;
                    addTransitionClass(el, moveClass);
                    style.transform = style.webkitTransform = style.transitionDuration = '';
                    const cb = (el._moveCb = (e) => {
                        if (e && e.target !== el) {
                            return;
                        }
                        if (!e || /transform$/.test(e.propertyName)) {
                            el.removeEventListener('transitionend', cb);
                            el._moveCb = null;
                            removeTransitionClass(el, moveClass);
                        }
                    });
                    el.addEventListener('transitionend', cb);
                });
            });
            return () => {
                const rawProps = toRaw(props);
                const cssTransitionProps = resolveTransitionProps(rawProps);
                let tag = rawProps.tag || Fragment;
                prevChildren = children;
                children = slots.default ? getTransitionRawChildren(slots.default()) : [];
                for (let i = 0; i < children.length; i++) {
                    const child = children[i];
                    if (child.key != null) {
                        setTransitionHooks(child, resolveTransitionHooks(child, cssTransitionProps, state, instance));
                    }
                    else {
                        warn(`<TransitionGroup> children must be keyed.`);
                    }
                }
                if (prevChildren) {
                    for (let i = 0; i < prevChildren.length; i++) {
                        const child = prevChildren[i];
                        setTransitionHooks(child, resolveTransitionHooks(child, cssTransitionProps, state, instance));
                        positionMap.set(child, child.el.getBoundingClientRect());
                    }
                }
                return createVNode(tag, null, children);
            };
        }
    };
    /**
     * TransitionGroup does not support "mode" so we need to remove it from the
     * props declarations, but direct delete operation is considered a side effect
     * and will make the entire transition feature non-tree-shakeable, so we do it
     * in a function and mark the function's invocation as pure.
     */
    const removeMode = (props) => delete props.mode;
    /*#__PURE__*/ removeMode(TransitionGroupImpl.props);
    const TransitionGroup = TransitionGroupImpl;
    function callPendingCbs(c) {
        const el = c.el;
        if (el._moveCb) {
            el._moveCb();
        }
        if (el._enterCb) {
            el._enterCb();
        }
    }
    function recordPosition(c) {
        newPositionMap.set(c, c.el.getBoundingClientRect());
    }
    function applyTranslation(c) {
        const oldPos = positionMap.get(c);
        const newPos = newPositionMap.get(c);
        const dx = oldPos.left - newPos.left;
        const dy = oldPos.top - newPos.top;
        if (dx || dy) {
            const s = c.el.style;
            s.transform = s.webkitTransform = `translate(${dx}px,${dy}px)`;
            s.transitionDuration = '0s';
            return c;
        }
    }
    function hasCSSTransform(el, root, moveClass) {
        // Detect whether an element with the move class applied has
        // CSS transitions. Since the element may be inside an entering
        // transition at this very moment, we make a clone of it and remove
        // all other transition classes applied to ensure only the move class
        // is applied.
        const clone = el.cloneNode();
        if (el._vtc) {
            el._vtc.forEach(cls => {
                cls.split(/\s+/).forEach(c => c && clone.classList.remove(c));
            });
        }
        moveClass.split(/\s+/).forEach(c => c && clone.classList.add(c));
        clone.style.display = 'none';
        const container = (root.nodeType === 1 ? root : root.parentNode);
        container.appendChild(clone);
        const { hasTransform } = getTransitionInfo(clone);
        container.removeChild(clone);
        return hasTransform;
    }
  
    const getModelAssigner = (vnode) => {
        const fn = vnode.props['onUpdate:modelValue'] ||
            (false );
        return isArray(fn) ? value => invokeArrayFns(fn, value) : fn;
    };
    function onCompositionStart(e) {
        e.target.composing = true;
    }
    function onCompositionEnd(e) {
        const target = e.target;
        if (target.composing) {
            target.composing = false;
            target.dispatchEvent(new Event('input'));
        }
    }
    // We are exporting the v-model runtime directly as vnode hooks so that it can
    // be tree-shaken in case v-model is never used.
    const vModelText = {
        created(el, { modifiers: { lazy, trim, number } }, vnode) {
            el._assign = getModelAssigner(vnode);
            const castToNumber = number || (vnode.props && vnode.props.type === 'number');
            addEventListener(el, lazy ? 'change' : 'input', e => {
                if (e.target.composing)
                    return;
                let domValue = el.value;
                if (trim) {
                    domValue = domValue.trim();
                }
                if (castToNumber) {
                    domValue = looseToNumber(domValue);
                }
                el._assign(domValue);
            });
            if (trim) {
                addEventListener(el, 'change', () => {
                    el.value = el.value.trim();
                });
            }
            if (!lazy) {
                addEventListener(el, 'compositionstart', onCompositionStart);
                addEventListener(el, 'compositionend', onCompositionEnd);
                // Safari < 10.2 & UIWebView doesn't fire compositionend when
                // switching focus before confirming composition choice
                // this also fixes the issue where some browsers e.g. iOS Chrome
                // fires "change" instead of "input" on autocomplete.
                addEventListener(el, 'change', onCompositionEnd);
            }
        },
        // set value on mounted so it's after min/max for type="range"
        mounted(el, { value }) {
            el.value = value == null ? '' : value;
        },
        beforeUpdate(el, { value, modifiers: { lazy, trim, number } }, vnode) {
            el._assign = getModelAssigner(vnode);
            // avoid clearing unresolved text. #2302
            if (el.composing)
                return;
            if (document.activeElement === el && el.type !== 'range') {
                if (lazy) {
                    return;
                }
                if (trim && el.value.trim() === value) {
                    return;
                }
                if ((number || el.type === 'number') &&
                    looseToNumber(el.value) === value) {
                    return;
                }
            }
            const newValue = value == null ? '' : value;
            if (el.value !== newValue) {
                el.value = newValue;
            }
        }
    };
    const vModelCheckbox = {
        // #4096 array checkboxes need to be deep traversed
        deep: true,
        created(el, _, vnode) {
            el._assign = getModelAssigner(vnode);
            addEventListener(el, 'change', () => {
                const modelValue = el._modelValue;
                const elementValue = getValue(el);
                const checked = el.checked;
                const assign = el._assign;
                if (isArray(modelValue)) {
                    const index = looseIndexOf(modelValue, elementValue);
                    const found = index !== -1;
                    if (checked && !found) {
                        assign(modelValue.concat(elementValue));
                    }
                    else if (!checked && found) {
                        const filtered = [...modelValue];
                        filtered.splice(index, 1);
                        assign(filtered);
                    }
                }
                else if (isSet(modelValue)) {
                    const cloned = new Set(modelValue);
                    if (checked) {
                        cloned.add(elementValue);
                    }
                    else {
                        cloned.delete(elementValue);
                    }
                    assign(cloned);
                }
                else {
                    assign(getCheckboxValue(el, checked));
                }
            });
        },
        // set initial checked on mount to wait for true-value/false-value
        mounted: setChecked,
        beforeUpdate(el, binding, vnode) {
            el._assign = getModelAssigner(vnode);
            setChecked(el, binding, vnode);
        }
    };
    function setChecked(el, { value, oldValue }, vnode) {
        el._modelValue = value;
        if (isArray(value)) {
            el.checked = looseIndexOf(value, vnode.props.value) > -1;
        }
        else if (isSet(value)) {
            el.checked = value.has(vnode.props.value);
        }
        else if (value !== oldValue) {
            el.checked = looseEqual(value, getCheckboxValue(el, true));
        }
    }
    const vModelRadio = {
        created(el, { value }, vnode) {
            el.checked = looseEqual(value, vnode.props.value);
            el._assign = getModelAssigner(vnode);
            addEventListener(el, 'change', () => {
                el._assign(getValue(el));
            });
        },
        beforeUpdate(el, { value, oldValue }, vnode) {
            el._assign = getModelAssigner(vnode);
            if (value !== oldValue) {
                el.checked = looseEqual(value, vnode.props.value);
            }
        }
    };
    const vModelSelect = {
        // <select multiple> value need to be deep traversed
        deep: true,
        created(el, { value, modifiers: { number } }, vnode) {
            const isSetModel = isSet(value);
            addEventListener(el, 'change', () => {
                const selectedVal = Array.prototype.filter
                    .call(el.options, (o) => o.selected)
                    .map((o) => number ? looseToNumber(getValue(o)) : getValue(o));
                el._assign(el.multiple
                    ? isSetModel
                        ? new Set(selectedVal)
                        : selectedVal
                    : selectedVal[0]);
            });
            el._assign = getModelAssigner(vnode);
        },
        // set value in mounted & updated because <select> relies on its children
        // <option>s.
        mounted(el, { value }) {
            setSelected(el, value);
        },
        beforeUpdate(el, _binding, vnode) {
            el._assign = getModelAssigner(vnode);
        },
        updated(el, { value }) {
            setSelected(el, value);
        }
    };
    function setSelected(el, value) {
        const isMultiple = el.multiple;
        if (isMultiple && !isArray(value) && !isSet(value)) {
            warn(`<select multiple v-model> expects an Array or Set value for its binding, ` +
                    `but got ${Object.prototype.toString.call(value).slice(8, -1)}.`);
            return;
        }
        for (let i = 0, l = el.options.length; i < l; i++) {
            const option = el.options[i];
            const optionValue = getValue(option);
            if (isMultiple) {
                if (isArray(value)) {
                    option.selected = looseIndexOf(value, optionValue) > -1;
                }
                else {
                    option.selected = value.has(optionValue);
                }
            }
            else {
                if (looseEqual(getValue(option), value)) {
                    if (el.selectedIndex !== i)
                        el.selectedIndex = i;
                    return;
                }
            }
        }
        if (!isMultiple && el.selectedIndex !== -1) {
            el.selectedIndex = -1;
        }
    }
    // retrieve raw value set via :value bindings
    function getValue(el) {
        return '_value' in el ? el._value : el.value;
    }
    // retrieve raw value for true-value and false-value set via :true-value or :false-value bindings
    function getCheckboxValue(el, checked) {
        const key = checked ? '_trueValue' : '_falseValue';
        return key in el ? el[key] : checked;
    }
    const vModelDynamic = {
        created(el, binding, vnode) {
            callModelHook(el, binding, vnode, null, 'created');
        },
        mounted(el, binding, vnode) {
            callModelHook(el, binding, vnode, null, 'mounted');
        },
        beforeUpdate(el, binding, vnode, prevVNode) {
            callModelHook(el, binding, vnode, prevVNode, 'beforeUpdate');
        },
        updated(el, binding, vnode, prevVNode) {
            callModelHook(el, binding, vnode, prevVNode, 'updated');
        }
    };
    function resolveDynamicModel(tagName, type) {
        switch (tagName) {
            case 'SELECT':
                return vModelSelect;
            case 'TEXTAREA':
                return vModelText;
            default:
                switch (type) {
                    case 'checkbox':
                        return vModelCheckbox;
                    case 'radio':
                        return vModelRadio;
                    default:
                        return vModelText;
                }
        }
    }
    function callModelHook(el, binding, vnode, prevVNode, hook) {
        const modelToUse = resolveDynamicModel(el.tagName, vnode.props && vnode.props.type);
        const fn = modelToUse[hook];
        fn && fn(el, binding, vnode, prevVNode);
    }
  
    const systemModifiers = ['ctrl', 'shift', 'alt', 'meta'];
    const modifierGuards = {
        stop: e => e.stopPropagation(),
        prevent: e => e.preventDefault(),
        self: e => e.target !== e.currentTarget,
        ctrl: e => !e.ctrlKey,
        shift: e => !e.shiftKey,
        alt: e => !e.altKey,
        meta: e => !e.metaKey,
        left: e => 'button' in e && e.button !== 0,
        middle: e => 'button' in e && e.button !== 1,
        right: e => 'button' in e && e.button !== 2,
        exact: (e, modifiers) => systemModifiers.some(m => e[`${m}Key`] && !modifiers.includes(m))
    };
    /**
     * @private
     */
    const withModifiers = (fn, modifiers) => {
        return (event, ...args) => {
            for (let i = 0; i < modifiers.length; i++) {
                const guard = modifierGuards[modifiers[i]];
                if (guard && guard(event, modifiers))
                    return;
            }
            return fn(event, ...args);
        };
    };
    // Kept for 2.x compat.
    // Note: IE11 compat for `spacebar` and `del` is removed for now.
    const keyNames = {
        esc: 'escape',
        space: ' ',
        up: 'arrow-up',
        left: 'arrow-left',
        right: 'arrow-right',
        down: 'arrow-down',
        delete: 'backspace'
    };
    /**
     * @private
     */
    const withKeys = (fn, modifiers) => {
        return (event) => {
            if (!('key' in event)) {
                return;
            }
            const eventKey = hyphenate(event.key);
            if (modifiers.some(k => k === eventKey || keyNames[k] === eventKey)) {
                return fn(event);
            }
        };
    };
  
    const vShow = {
        beforeMount(el, { value }, { transition }) {
            el._vod = el.style.display === 'none' ? '' : el.style.display;
            if (transition && value) {
                transition.beforeEnter(el);
            }
            else {
                setDisplay(el, value);
            }
        },
        mounted(el, { value }, { transition }) {
            if (transition && value) {
                transition.enter(el);
            }
        },
        updated(el, { value, oldValue }, { transition }) {
            if (!value === !oldValue)
                return;
            if (transition) {
                if (value) {
                    transition.beforeEnter(el);
                    setDisplay(el, true);
                    transition.enter(el);
                }
                else {
                    transition.leave(el, () => {
                        setDisplay(el, false);
                    });
                }
            }
            else {
                setDisplay(el, value);
            }
        },
        beforeUnmount(el, { value }) {
            setDisplay(el, value);
        }
    };
    function setDisplay(el, value) {
        el.style.display = value ? el._vod : 'none';
    }
  
    const rendererOptions = /*#__PURE__*/ extend({ patchProp }, nodeOps);
    // lazy create the renderer - this makes core renderer logic tree-shakable
    // in case the user only imports reactivity utilities from Vue.
    let renderer;
    let enabledHydration = false;
    function ensureRenderer() {
        return (renderer ||
            (renderer = createRenderer(rendererOptions)));
    }
    function ensureHydrationRenderer() {
        renderer = enabledHydration
            ? renderer
            : createHydrationRenderer(rendererOptions);
        enabledHydration = true;
        return renderer;
    }
    // use explicit type casts here to avoid import() calls in rolled-up d.ts
    const render = ((...args) => {
        ensureRenderer().render(...args);
    });
    const hydrate = ((...args) => {
        ensureHydrationRenderer().hydrate(...args);
    });
    const createApp = ((...args) => {
        const app = ensureRenderer().createApp(...args);
        {
            injectNativeTagCheck(app);
            injectCompilerOptionsCheck(app);
        }
        const { mount } = app;
        app.mount = (containerOrSelector) => {
            const container = normalizeContainer(containerOrSelector);
            if (!container)
                return;
            const component = app._component;
            if (!isFunction(component) && !component.render && !component.template) {
                // __UNSAFE__
                // Reason: potential execution of JS expressions in in-DOM template.
                // The user must make sure the in-DOM template is trusted. If it's
                // rendered by the server, the template should not contain any user data.
                component.template = container.innerHTML;
            }
            // clear content before mounting
            container.innerHTML = '';
            const proxy = mount(container, false, container instanceof SVGElement);
            if (container instanceof Element) {
                container.removeAttribute('v-cloak');
                container.setAttribute('data-v-app', '');
            }
            return proxy;
        };
        return app;
    });
    const createSSRApp = ((...args) => {
        const app = ensureHydrationRenderer().createApp(...args);
        {
            injectNativeTagCheck(app);
            injectCompilerOptionsCheck(app);
        }
        const { mount } = app;
        app.mount = (containerOrSelector) => {
            const container = normalizeContainer(containerOrSelector);
            if (container) {
                return mount(container, true, container instanceof SVGElement);
            }
        };
        return app;
    });
    function injectNativeTagCheck(app) {
        // Inject `isNativeTag`
        // this is used for component name validation (dev only)
        Object.defineProperty(app.config, 'isNativeTag', {
            value: (tag) => isHTMLTag(tag) || isSVGTag(tag),
            writable: false
        });
    }
    // dev only
    function injectCompilerOptionsCheck(app) {
        if (isRuntimeOnly()) {
            const isCustomElement = app.config.isCustomElement;
            Object.defineProperty(app.config, 'isCustomElement', {
                get() {
                    return isCustomElement;
                },
                set() {
                    warn(`The \`isCustomElement\` config option is deprecated. Use ` +
                        `\`compilerOptions.isCustomElement\` instead.`);
                }
            });
            const compilerOptions = app.config.compilerOptions;
            const msg = `The \`compilerOptions\` config option is only respected when using ` +
                `a build of Vue.js that includes the runtime compiler (aka "full build"). ` +
                `Since you are using the runtime-only build, \`compilerOptions\` ` +
                `must be passed to \`@vue/compiler-dom\` in the build setup instead.\n` +
                `- For vue-loader: pass it via vue-loader's \`compilerOptions\` loader option.\n` +
                `- For vue-cli: see https://cli.vuejs.org/guide/webpack.html#modifying-options-of-a-loader\n` +
                `- For vite: pass it via @vitejs/plugin-vue options. See https://github.com/vitejs/vite/tree/main/packages/plugin-vue#example-for-passing-options-to-vuecompiler-dom`;
            Object.defineProperty(app.config, 'compilerOptions', {
                get() {
                    warn(msg);
                    return compilerOptions;
                },
                set() {
                    warn(msg);
                }
            });
        }
    }
    function normalizeContainer(container) {
        if (isString(container)) {
            const res = document.querySelector(container);
            if (!res) {
                warn(`Failed to mount app: mount target selector "${container}" returned null.`);
            }
            return res;
        }
        if (window.ShadowRoot &&
            container instanceof window.ShadowRoot &&
            container.mode === 'closed') {
            warn(`mounting on a ShadowRoot with \`{mode: "closed"}\` may lead to unpredictable bugs`);
        }
        return container;
    }
    /**
     * @internal
     */
    const initDirectivesForSSR = NOOP;
  
    function initDev() {
        {
            /* istanbul ignore if */
            {
                console.info(`You are running a development build of Vue.\n` +
                    `Make sure to use the production build (*.prod.js) when deploying for production.`);
            }
            initCustomFormatter();
        }
    }
  
    function defaultOnError(error) {
        throw error;
    }
    function defaultOnWarn(msg) {
        console.warn(`[Vue warn] ${msg.message}`);
    }
    function createCompilerError(code, loc, messages, additionalMessage) {
        const msg = (messages || errorMessages)[code] + (additionalMessage || ``)
            ;
        const error = new SyntaxError(String(msg));
        error.code = code;
        error.loc = loc;
        return error;
    }
    const errorMessages = {
        // parse errors
        [0 /* ErrorCodes.ABRUPT_CLOSING_OF_EMPTY_COMMENT */]: 'Illegal comment.',
        [1 /* ErrorCodes.CDATA_IN_HTML_CONTENT */]: 'CDATA section is allowed only in XML context.',
        [2 /* ErrorCodes.DUPLICATE_ATTRIBUTE */]: 'Duplicate attribute.',
        [3 /* ErrorCodes.END_TAG_WITH_ATTRIBUTES */]: 'End tag cannot have attributes.',
        [4 /* ErrorCodes.END_TAG_WITH_TRAILING_SOLIDUS */]: "Illegal '/' in tags.",
        [5 /* ErrorCodes.EOF_BEFORE_TAG_NAME */]: 'Unexpected EOF in tag.',
        [6 /* ErrorCodes.EOF_IN_CDATA */]: 'Unexpected EOF in CDATA section.',
        [7 /* ErrorCodes.EOF_IN_COMMENT */]: 'Unexpected EOF in comment.',
        [8 /* ErrorCodes.EOF_IN_SCRIPT_HTML_COMMENT_LIKE_TEXT */]: 'Unexpected EOF in script.',
        [9 /* ErrorCodes.EOF_IN_TAG */]: 'Unexpected EOF in tag.',
        [10 /* ErrorCodes.INCORRECTLY_CLOSED_COMMENT */]: 'Incorrectly closed comment.',
        [11 /* ErrorCodes.INCORRECTLY_OPENED_COMMENT */]: 'Incorrectly opened comment.',
        [12 /* ErrorCodes.INVALID_FIRST_CHARACTER_OF_TAG_NAME */]: "Illegal tag name. Use '&lt;' to print '<'.",
        [13 /* ErrorCodes.MISSING_ATTRIBUTE_VALUE */]: 'Attribute value was expected.',
        [14 /* ErrorCodes.MISSING_END_TAG_NAME */]: 'End tag name was expected.',
        [15 /* ErrorCodes.MISSING_WHITESPACE_BETWEEN_ATTRIBUTES */]: 'Whitespace was expected.',
        [16 /* ErrorCodes.NESTED_COMMENT */]: "Unexpected '<!--' in comment.",
        [17 /* ErrorCodes.UNEXPECTED_CHARACTER_IN_ATTRIBUTE_NAME */]: 'Attribute name cannot contain U+0022 ("), U+0027 (\'), and U+003C (<).',
        [18 /* ErrorCodes.UNEXPECTED_CHARACTER_IN_UNQUOTED_ATTRIBUTE_VALUE */]: 'Unquoted attribute value cannot contain U+0022 ("), U+0027 (\'), U+003C (<), U+003D (=), and U+0060 (`).',
        [19 /* ErrorCodes.UNEXPECTED_EQUALS_SIGN_BEFORE_ATTRIBUTE_NAME */]: "Attribute name cannot start with '='.",
        [21 /* ErrorCodes.UNEXPECTED_QUESTION_MARK_INSTEAD_OF_TAG_NAME */]: "'<?' is allowed only in XML context.",
        [20 /* ErrorCodes.UNEXPECTED_NULL_CHARACTER */]: `Unexpected null character.`,
        [22 /* ErrorCodes.UNEXPECTED_SOLIDUS_IN_TAG */]: "Illegal '/' in tags.",
        // Vue-specific parse errors
        [23 /* ErrorCodes.X_INVALID_END_TAG */]: 'Invalid end tag.',
        [24 /* ErrorCodes.X_MISSING_END_TAG */]: 'Element is missing end tag.',
        [25 /* ErrorCodes.X_MISSING_INTERPOLATION_END */]: 'Interpolation end sign was not found.',
        [27 /* ErrorCodes.X_MISSING_DYNAMIC_DIRECTIVE_ARGUMENT_END */]: 'End bracket for dynamic directive argument was not found. ' +
            'Note that dynamic directive argument cannot contain spaces.',
        [26 /* ErrorCodes.X_MISSING_DIRECTIVE_NAME */]: 'Legal directive name was expected.',
        // transform errors
        [28 /* ErrorCodes.X_V_IF_NO_EXPRESSION */]: `v-if/v-else-if is missing expression.`,
        [29 /* ErrorCodes.X_V_IF_SAME_KEY */]: `v-if/else branches must use unique keys.`,
        [30 /* ErrorCodes.X_V_ELSE_NO_ADJACENT_IF */]: `v-else/v-else-if has no adjacent v-if or v-else-if.`,
        [31 /* ErrorCodes.X_V_FOR_NO_EXPRESSION */]: `v-for is missing expression.`,
        [32 /* ErrorCodes.X_V_FOR_MALFORMED_EXPRESSION */]: `v-for has invalid expression.`,
        [33 /* ErrorCodes.X_V_FOR_TEMPLATE_KEY_PLACEMENT */]: `<template v-for> key should be placed on the <template> tag.`,
        [34 /* ErrorCodes.X_V_BIND_NO_EXPRESSION */]: `v-bind is missing expression.`,
        [35 /* ErrorCodes.X_V_ON_NO_EXPRESSION */]: `v-on is missing expression.`,
        [36 /* ErrorCodes.X_V_SLOT_UNEXPECTED_DIRECTIVE_ON_SLOT_OUTLET */]: `Unexpected custom directive on <slot> outlet.`,
        [37 /* ErrorCodes.X_V_SLOT_MIXED_SLOT_USAGE */]: `Mixed v-slot usage on both the component and nested <template>. ` +
            `When there are multiple named slots, all slots should use <template> ` +
            `syntax to avoid scope ambiguity.`,
        [38 /* ErrorCodes.X_V_SLOT_DUPLICATE_SLOT_NAMES */]: `Duplicate slot names found. `,
        [39 /* ErrorCodes.X_V_SLOT_EXTRANEOUS_DEFAULT_SLOT_CHILDREN */]: `Extraneous children found when component already has explicitly named ` +
            `default slot. These children will be ignored.`,
        [40 /* ErrorCodes.X_V_SLOT_MISPLACED */]: `v-slot can only be used on components or <template> tags.`,
        [41 /* ErrorCodes.X_V_MODEL_NO_EXPRESSION */]: `v-model is missing expression.`,
        [42 /* ErrorCodes.X_V_MODEL_MALFORMED_EXPRESSION */]: `v-model value must be a valid JavaScript member expression.`,
        [43 /* ErrorCodes.X_V_MODEL_ON_SCOPE_VARIABLE */]: `v-model cannot be used on v-for or v-slot scope variables because they are not writable.`,
        [44 /* ErrorCodes.X_V_MODEL_ON_PROPS */]: `v-model cannot be used on a prop, because local prop bindings are not writable.\nUse a v-bind binding combined with a v-on listener that emits update:x event instead.`,
        [45 /* ErrorCodes.X_INVALID_EXPRESSION */]: `Error parsing JavaScript expression: `,
        [46 /* ErrorCodes.X_KEEP_ALIVE_INVALID_CHILDREN */]: `<KeepAlive> expects exactly one child component.`,
        // generic errors
        [47 /* ErrorCodes.X_PREFIX_ID_NOT_SUPPORTED */]: `"prefixIdentifiers" option is not supported in this build of compiler.`,
        [48 /* ErrorCodes.X_MODULE_MODE_NOT_SUPPORTED */]: `ES module mode is not supported in this build of compiler.`,
        [49 /* ErrorCodes.X_CACHE_HANDLER_NOT_SUPPORTED */]: `"cacheHandlers" option is only supported when the "prefixIdentifiers" option is enabled.`,
        [50 /* ErrorCodes.X_SCOPE_ID_NOT_SUPPORTED */]: `"scopeId" option is only supported in module mode.`,
        // just to fulfill types
        [51 /* ErrorCodes.__EXTEND_POINT__ */]: ``
    };
  
    const FRAGMENT = Symbol(`Fragment` );
    const TELEPORT = Symbol(`Teleport` );
    const SUSPENSE = Symbol(`Suspense` );
    const KEEP_ALIVE = Symbol(`KeepAlive` );
    const BASE_TRANSITION = Symbol(`BaseTransition` );
    const OPEN_BLOCK = Symbol(`openBlock` );
    const CREATE_BLOCK = Symbol(`createBlock` );
    const CREATE_ELEMENT_BLOCK = Symbol(`createElementBlock` );
    const CREATE_VNODE = Symbol(`createVNode` );
    const CREATE_ELEMENT_VNODE = Symbol(`createElementVNode` );
    const CREATE_COMMENT = Symbol(`createCommentVNode` );
    const CREATE_TEXT = Symbol(`createTextVNode` );
    const CREATE_STATIC = Symbol(`createStaticVNode` );
    const RESOLVE_COMPONENT = Symbol(`resolveComponent` );
    const RESOLVE_DYNAMIC_COMPONENT = Symbol(`resolveDynamicComponent` );
    const RESOLVE_DIRECTIVE = Symbol(`resolveDirective` );
    const RESOLVE_FILTER = Symbol(`resolveFilter` );
    const WITH_DIRECTIVES = Symbol(`withDirectives` );
    const RENDER_LIST = Symbol(`renderList` );
    const RENDER_SLOT = Symbol(`renderSlot` );
    const CREATE_SLOTS = Symbol(`createSlots` );
    const TO_DISPLAY_STRING = Symbol(`toDisplayString` );
    const MERGE_PROPS = Symbol(`mergeProps` );
    const NORMALIZE_CLASS = Symbol(`normalizeClass` );
    const NORMALIZE_STYLE = Symbol(`normalizeStyle` );
    const NORMALIZE_PROPS = Symbol(`normalizeProps` );
    const GUARD_REACTIVE_PROPS = Symbol(`guardReactiveProps` );
    const TO_HANDLERS = Symbol(`toHandlers` );
    const CAMELIZE = Symbol(`camelize` );
    const CAPITALIZE = Symbol(`capitalize` );
    const TO_HANDLER_KEY = Symbol(`toHandlerKey` );
    const SET_BLOCK_TRACKING = Symbol(`setBlockTracking` );
    const PUSH_SCOPE_ID = Symbol(`pushScopeId` );
    const POP_SCOPE_ID = Symbol(`popScopeId` );
    const WITH_CTX = Symbol(`withCtx` );
    const UNREF = Symbol(`unref` );
    const IS_REF = Symbol(`isRef` );
    const WITH_MEMO = Symbol(`withMemo` );
    const IS_MEMO_SAME = Symbol(`isMemoSame` );
    // Name mapping for runtime helpers that need to be imported from 'vue' in
    // generated code. Make sure these are correctly exported in the runtime!
    const helperNameMap = {
        [FRAGMENT]: `Fragment`,
        [TELEPORT]: `Teleport`,
        [SUSPENSE]: `Suspense`,
        [KEEP_ALIVE]: `KeepAlive`,
        [BASE_TRANSITION]: `BaseTransition`,
        [OPEN_BLOCK]: `openBlock`,
        [CREATE_BLOCK]: `createBlock`,
        [CREATE_ELEMENT_BLOCK]: `createElementBlock`,
        [CREATE_VNODE]: `createVNode`,
        [CREATE_ELEMENT_VNODE]: `createElementVNode`,
        [CREATE_COMMENT]: `createCommentVNode`,
        [CREATE_TEXT]: `createTextVNode`,
        [CREATE_STATIC]: `createStaticVNode`,
        [RESOLVE_COMPONENT]: `resolveComponent`,
        [RESOLVE_DYNAMIC_COMPONENT]: `resolveDynamicComponent`,
        [RESOLVE_DIRECTIVE]: `resolveDirective`,
        [RESOLVE_FILTER]: `resolveFilter`,
        [WITH_DIRECTIVES]: `withDirectives`,
        [RENDER_LIST]: `renderList`,
        [RENDER_SLOT]: `renderSlot`,
        [CREATE_SLOTS]: `createSlots`,
        [TO_DISPLAY_STRING]: `toDisplayString`,
        [MERGE_PROPS]: `mergeProps`,
        [NORMALIZE_CLASS]: `normalizeClass`,
        [NORMALIZE_STYLE]: `normalizeStyle`,
        [NORMALIZE_PROPS]: `normalizeProps`,
        [GUARD_REACTIVE_PROPS]: `guardReactiveProps`,
        [TO_HANDLERS]: `toHandlers`,
        [CAMELIZE]: `camelize`,
        [CAPITALIZE]: `capitalize`,
        [TO_HANDLER_KEY]: `toHandlerKey`,
        [SET_BLOCK_TRACKING]: `setBlockTracking`,
        [PUSH_SCOPE_ID]: `pushScopeId`,
        [POP_SCOPE_ID]: `popScopeId`,
        [WITH_CTX]: `withCtx`,
        [UNREF]: `unref`,
        [IS_REF]: `isRef`,
        [WITH_MEMO]: `withMemo`,
        [IS_MEMO_SAME]: `isMemoSame`
    };
    function registerRuntimeHelpers(helpers) {
        Object.getOwnPropertySymbols(helpers).forEach(s => {
            helperNameMap[s] = helpers[s];
        });
    }
  
    // AST Utilities ---------------------------------------------------------------
    // Some expressions, e.g. sequence and conditional expressions, are never
    // associated with template nodes, so their source locations are just a stub.
    // Container types like CompoundExpression also don't need a real location.
    const locStub = {
        source: '',
        start: { line: 1, column: 1, offset: 0 },
        end: { line: 1, column: 1, offset: 0 }
    };
    function createRoot(children, loc = locStub) {
        return {
            type: 0 /* NodeTypes.ROOT */,
            children,
            helpers: new Set(),
            components: [],
            directives: [],
            hoists: [],
            imports: [],
            cached: 0,
            temps: 0,
            codegenNode: undefined,
            loc
        };
    }
    function createVNodeCall(context, tag, props, children, patchFlag, dynamicProps, directives, isBlock = false, disableTracking = false, isComponent = false, loc = locStub) {
        if (context) {
            if (isBlock) {
                context.helper(OPEN_BLOCK);
                context.helper(getVNodeBlockHelper(context.inSSR, isComponent));
            }
            else {
                context.helper(getVNodeHelper(context.inSSR, isComponent));
            }
            if (directives) {
                context.helper(WITH_DIRECTIVES);
            }
        }
        return {
            type: 13 /* NodeTypes.VNODE_CALL */,
            tag,
            props,
            children,
            patchFlag,
            dynamicProps,
            directives,
            isBlock,
            disableTracking,
            isComponent,
            loc
        };
    }
    function createArrayExpression(elements, loc = locStub) {
        return {
            type: 17 /* NodeTypes.JS_ARRAY_EXPRESSION */,
            loc,
            elements
        };
    }
    function createObjectExpression(properties, loc = locStub) {
        return {
            type: 15 /* NodeTypes.JS_OBJECT_EXPRESSION */,
            loc,
            properties
        };
    }
    function createObjectProperty(key, value) {
        return {
            type: 16 /* NodeTypes.JS_PROPERTY */,
            loc: locStub,
            key: isString(key) ? createSimpleExpression(key, true) : key,
            value
        };
    }
    function createSimpleExpression(content, isStatic = false, loc = locStub, constType = 0 /* ConstantTypes.NOT_CONSTANT */) {
        return {
            type: 4 /* NodeTypes.SIMPLE_EXPRESSION */,
            loc,
            content,
            isStatic,
            constType: isStatic ? 3 /* ConstantTypes.CAN_STRINGIFY */ : constType
        };
    }
    function createCompoundExpression(children, loc = locStub) {
        return {
            type: 8 /* NodeTypes.COMPOUND_EXPRESSION */,
            loc,
            children
        };
    }
    function createCallExpression(callee, args = [], loc = locStub) {
        return {
            type: 14 /* NodeTypes.JS_CALL_EXPRESSION */,
            loc,
            callee,
            arguments: args
        };
    }
    function createFunctionExpression(params, returns = undefined, newline = false, isSlot = false, loc = locStub) {
        return {
            type: 18 /* NodeTypes.JS_FUNCTION_EXPRESSION */,
            params,
            returns,
            newline,
            isSlot,
            loc
        };
    }
    function createConditionalExpression(test, consequent, alternate, newline = true) {
        return {
            type: 19 /* NodeTypes.JS_CONDITIONAL_EXPRESSION */,
            test,
            consequent,
            alternate,
            newline,
            loc: locStub
        };
    }
    function createCacheExpression(index, value, isVNode = false) {
        return {
            type: 20 /* NodeTypes.JS_CACHE_EXPRESSION */,
            index,
            value,
            isVNode,
            loc: locStub
        };
    }
    function createBlockStatement(body) {
        return {
            type: 21 /* NodeTypes.JS_BLOCK_STATEMENT */,
            body,
            loc: locStub
        };
    }
  
    const isStaticExp = (p) => p.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ && p.isStatic;
    const isBuiltInType = (tag, expected) => tag === expected || tag === hyphenate(expected);
    function isCoreComponent(tag) {
        if (isBuiltInType(tag, 'Teleport')) {
            return TELEPORT;
        }
        else if (isBuiltInType(tag, 'Suspense')) {
            return SUSPENSE;
        }
        else if (isBuiltInType(tag, 'KeepAlive')) {
            return KEEP_ALIVE;
        }
        else if (isBuiltInType(tag, 'BaseTransition')) {
            return BASE_TRANSITION;
        }
    }
    const nonIdentifierRE = /^\d|[^\$\w]/;
    const isSimpleIdentifier = (name) => !nonIdentifierRE.test(name);
    const validFirstIdentCharRE = /[A-Za-z_$\xA0-\uFFFF]/;
    const validIdentCharRE = /[\.\?\w$\xA0-\uFFFF]/;
    const whitespaceRE = /\s+[.[]\s*|\s*[.[]\s+/g;
    /**
     * Simple lexer to check if an expression is a member expression. This is
     * lax and only checks validity at the root level (i.e. does not validate exps
     * inside square brackets), but it's ok since these are only used on template
     * expressions and false positives are invalid expressions in the first place.
     */
    const isMemberExpressionBrowser = (path) => {
        // remove whitespaces around . or [ first
        path = path.trim().replace(whitespaceRE, s => s.trim());
        let state = 0 /* MemberExpLexState.inMemberExp */;
        let stateStack = [];
        let currentOpenBracketCount = 0;
        let currentOpenParensCount = 0;
        let currentStringType = null;
        for (let i = 0; i < path.length; i++) {
            const char = path.charAt(i);
            switch (state) {
                case 0 /* MemberExpLexState.inMemberExp */:
                    if (char === '[') {
                        stateStack.push(state);
                        state = 1 /* MemberExpLexState.inBrackets */;
                        currentOpenBracketCount++;
                    }
                    else if (char === '(') {
                        stateStack.push(state);
                        state = 2 /* MemberExpLexState.inParens */;
                        currentOpenParensCount++;
                    }
                    else if (!(i === 0 ? validFirstIdentCharRE : validIdentCharRE).test(char)) {
                        return false;
                    }
                    break;
                case 1 /* MemberExpLexState.inBrackets */:
                    if (char === `'` || char === `"` || char === '`') {
                        stateStack.push(state);
                        state = 3 /* MemberExpLexState.inString */;
                        currentStringType = char;
                    }
                    else if (char === `[`) {
                        currentOpenBracketCount++;
                    }
                    else if (char === `]`) {
                        if (!--currentOpenBracketCount) {
                            state = stateStack.pop();
                        }
                    }
                    break;
                case 2 /* MemberExpLexState.inParens */:
                    if (char === `'` || char === `"` || char === '`') {
                        stateStack.push(state);
                        state = 3 /* MemberExpLexState.inString */;
                        currentStringType = char;
                    }
                    else if (char === `(`) {
                        currentOpenParensCount++;
                    }
                    else if (char === `)`) {
                        // if the exp ends as a call then it should not be considered valid
                        if (i === path.length - 1) {
                            return false;
                        }
                        if (!--currentOpenParensCount) {
                            state = stateStack.pop();
                        }
                    }
                    break;
                case 3 /* MemberExpLexState.inString */:
                    if (char === currentStringType) {
                        state = stateStack.pop();
                        currentStringType = null;
                    }
                    break;
            }
        }
        return !currentOpenBracketCount && !currentOpenParensCount;
    };
    const isMemberExpression = isMemberExpressionBrowser
        ;
    function getInnerRange(loc, offset, length) {
        const source = loc.source.slice(offset, offset + length);
        const newLoc = {
            source,
            start: advancePositionWithClone(loc.start, loc.source, offset),
            end: loc.end
        };
        if (length != null) {
            newLoc.end = advancePositionWithClone(loc.start, loc.source, offset + length);
        }
        return newLoc;
    }
    function advancePositionWithClone(pos, source, numberOfCharacters = source.length) {
        return advancePositionWithMutation(extend({}, pos), source, numberOfCharacters);
    }
    // advance by mutation without cloning (for performance reasons), since this
    // gets called a lot in the parser
    function advancePositionWithMutation(pos, source, numberOfCharacters = source.length) {
        let linesCount = 0;
        let lastNewLinePos = -1;
        for (let i = 0; i < numberOfCharacters; i++) {
            if (source.charCodeAt(i) === 10 /* newline char code */) {
                linesCount++;
                lastNewLinePos = i;
            }
        }
        pos.offset += numberOfCharacters;
        pos.line += linesCount;
        pos.column =
            lastNewLinePos === -1
                ? pos.column + numberOfCharacters
                : numberOfCharacters - lastNewLinePos;
        return pos;
    }
    function assert(condition, msg) {
        /* istanbul ignore if */
        if (!condition) {
            throw new Error(msg || `unexpected compiler condition`);
        }
    }
    function findDir(node, name, allowEmpty = false) {
        for (let i = 0; i < node.props.length; i++) {
            const p = node.props[i];
            if (p.type === 7 /* NodeTypes.DIRECTIVE */ &&
                (allowEmpty || p.exp) &&
                (isString(name) ? p.name === name : name.test(p.name))) {
                return p;
            }
        }
    }
    function findProp(node, name, dynamicOnly = false, allowEmpty = false) {
        for (let i = 0; i < node.props.length; i++) {
            const p = node.props[i];
            if (p.type === 6 /* NodeTypes.ATTRIBUTE */) {
                if (dynamicOnly)
                    continue;
                if (p.name === name && (p.value || allowEmpty)) {
                    return p;
                }
            }
            else if (p.name === 'bind' &&
                (p.exp || allowEmpty) &&
                isStaticArgOf(p.arg, name)) {
                return p;
            }
        }
    }
    function isStaticArgOf(arg, name) {
        return !!(arg && isStaticExp(arg) && arg.content === name);
    }
    function hasDynamicKeyVBind(node) {
        return node.props.some(p => p.type === 7 /* NodeTypes.DIRECTIVE */ &&
            p.name === 'bind' &&
            (!p.arg || // v-bind="obj"
                p.arg.type !== 4 /* NodeTypes.SIMPLE_EXPRESSION */ || // v-bind:[_ctx.foo]
                !p.arg.isStatic) // v-bind:[foo]
        );
    }
    function isText$1(node) {
        return node.type === 5 /* NodeTypes.INTERPOLATION */ || node.type === 2 /* NodeTypes.TEXT */;
    }
    function isVSlot(p) {
        return p.type === 7 /* NodeTypes.DIRECTIVE */ && p.name === 'slot';
    }
    function isTemplateNode(node) {
        return (node.type === 1 /* NodeTypes.ELEMENT */ && node.tagType === 3 /* ElementTypes.TEMPLATE */);
    }
    function isSlotOutlet(node) {
        return node.type === 1 /* NodeTypes.ELEMENT */ && node.tagType === 2 /* ElementTypes.SLOT */;
    }
    function getVNodeHelper(ssr, isComponent) {
        return ssr || isComponent ? CREATE_VNODE : CREATE_ELEMENT_VNODE;
    }
    function getVNodeBlockHelper(ssr, isComponent) {
        return ssr || isComponent ? CREATE_BLOCK : CREATE_ELEMENT_BLOCK;
    }
    const propsHelperSet = new Set([NORMALIZE_PROPS, GUARD_REACTIVE_PROPS]);
    function getUnnormalizedProps(props, callPath = []) {
        if (props &&
            !isString(props) &&
            props.type === 14 /* NodeTypes.JS_CALL_EXPRESSION */) {
            const callee = props.callee;
            if (!isString(callee) && propsHelperSet.has(callee)) {
                return getUnnormalizedProps(props.arguments[0], callPath.concat(props));
            }
        }
        return [props, callPath];
    }
    function injectProp(node, prop, context) {
        let propsWithInjection;
        /**
         * 1. mergeProps(...)
         * 2. toHandlers(...)
         * 3. normalizeProps(...)
         * 4. normalizeProps(guardReactiveProps(...))
         *
         * we need to get the real props before normalization
         */
        let props = node.type === 13 /* NodeTypes.VNODE_CALL */ ? node.props : node.arguments[2];
        let callPath = [];
        let parentCall;
        if (props &&
            !isString(props) &&
            props.type === 14 /* NodeTypes.JS_CALL_EXPRESSION */) {
            const ret = getUnnormalizedProps(props);
            props = ret[0];
            callPath = ret[1];
            parentCall = callPath[callPath.length - 1];
        }
        if (props == null || isString(props)) {
            propsWithInjection = createObjectExpression([prop]);
        }
        else if (props.type === 14 /* NodeTypes.JS_CALL_EXPRESSION */) {
            // merged props... add ours
            // only inject key to object literal if it's the first argument so that
            // if doesn't override user provided keys
            const first = props.arguments[0];
            if (!isString(first) && first.type === 15 /* NodeTypes.JS_OBJECT_EXPRESSION */) {
                // #6631
                if (!hasProp(prop, first)) {
                    first.properties.unshift(prop);
                }
            }
            else {
                if (props.callee === TO_HANDLERS) {
                    // #2366
                    propsWithInjection = createCallExpression(context.helper(MERGE_PROPS), [
                        createObjectExpression([prop]),
                        props
                    ]);
                }
                else {
                    props.arguments.unshift(createObjectExpression([prop]));
                }
            }
            !propsWithInjection && (propsWithInjection = props);
        }
        else if (props.type === 15 /* NodeTypes.JS_OBJECT_EXPRESSION */) {
            if (!hasProp(prop, props)) {
                props.properties.unshift(prop);
            }
            propsWithInjection = props;
        }
        else {
            // single v-bind with expression, return a merged replacement
            propsWithInjection = createCallExpression(context.helper(MERGE_PROPS), [
                createObjectExpression([prop]),
                props
            ]);
            // in the case of nested helper call, e.g. `normalizeProps(guardReactiveProps(props))`,
            // it will be rewritten as `normalizeProps(mergeProps({ key: 0 }, props))`,
            // the `guardReactiveProps` will no longer be needed
            if (parentCall && parentCall.callee === GUARD_REACTIVE_PROPS) {
                parentCall = callPath[callPath.length - 2];
            }
        }
        if (node.type === 13 /* NodeTypes.VNODE_CALL */) {
            if (parentCall) {
                parentCall.arguments[0] = propsWithInjection;
            }
            else {
                node.props = propsWithInjection;
            }
        }
        else {
            if (parentCall) {
                parentCall.arguments[0] = propsWithInjection;
            }
            else {
                node.arguments[2] = propsWithInjection;
            }
        }
    }
    // check existing key to avoid overriding user provided keys
    function hasProp(prop, props) {
        let result = false;
        if (prop.key.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */) {
            const propKeyName = prop.key.content;
            result = props.properties.some(p => p.key.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ &&
                p.key.content === propKeyName);
        }
        return result;
    }
    function toValidAssetId(name, type) {
        // see issue#4422, we need adding identifier on validAssetId if variable `name` has specific character
        return `_${type}_${name.replace(/[^\w]/g, (searchValue, replaceValue) => {
          return searchValue === '-' ? '_' : name.charCodeAt(replaceValue).toString();
      })}`;
    }
    function getMemoedVNodeCall(node) {
        if (node.type === 14 /* NodeTypes.JS_CALL_EXPRESSION */ && node.callee === WITH_MEMO) {
            return node.arguments[1].returns;
        }
        else {
            return node;
        }
    }
    function makeBlock(node, { helper, removeHelper, inSSR }) {
        if (!node.isBlock) {
            node.isBlock = true;
            removeHelper(getVNodeHelper(inSSR, node.isComponent));
            helper(OPEN_BLOCK);
            helper(getVNodeBlockHelper(inSSR, node.isComponent));
        }
    }
  
    const deprecationData = {
        ["COMPILER_IS_ON_ELEMENT" /* CompilerDeprecationTypes.COMPILER_IS_ON_ELEMENT */]: {
            message: `Platform-native elements with "is" prop will no longer be ` +
                `treated as components in Vue 3 unless the "is" value is explicitly ` +
                `prefixed with "vue:".`,
            link: `https://v3-migration.vuejs.org/breaking-changes/custom-elements-interop.html`
        },
        ["COMPILER_V_BIND_SYNC" /* CompilerDeprecationTypes.COMPILER_V_BIND_SYNC */]: {
            message: key => `.sync modifier for v-bind has been removed. Use v-model with ` +
                `argument instead. \`v-bind:${key}.sync\` should be changed to ` +
                `\`v-model:${key}\`.`,
            link: `https://v3-migration.vuejs.org/breaking-changes/v-model.html`
        },
        ["COMPILER_V_BIND_PROP" /* CompilerDeprecationTypes.COMPILER_V_BIND_PROP */]: {
            message: `.prop modifier for v-bind has been removed and no longer necessary. ` +
                `Vue 3 will automatically set a binding as DOM property when appropriate.`
        },
        ["COMPILER_V_BIND_OBJECT_ORDER" /* CompilerDeprecationTypes.COMPILER_V_BIND_OBJECT_ORDER */]: {
            message: `v-bind="obj" usage is now order sensitive and behaves like JavaScript ` +
                `object spread: it will now overwrite an existing non-mergeable attribute ` +
                `that appears before v-bind in the case of conflict. ` +
                `To retain 2.x behavior, move v-bind to make it the first attribute. ` +
                `You can also suppress this warning if the usage is intended.`,
            link: `https://v3-migration.vuejs.org/breaking-changes/v-bind.html`
        },
        ["COMPILER_V_ON_NATIVE" /* CompilerDeprecationTypes.COMPILER_V_ON_NATIVE */]: {
            message: `.native modifier for v-on has been removed as is no longer necessary.`,
            link: `https://v3-migration.vuejs.org/breaking-changes/v-on-native-modifier-removed.html`
        },
        ["COMPILER_V_IF_V_FOR_PRECEDENCE" /* CompilerDeprecationTypes.COMPILER_V_IF_V_FOR_PRECEDENCE */]: {
            message: `v-if / v-for precedence when used on the same element has changed ` +
                `in Vue 3: v-if now takes higher precedence and will no longer have ` +
                `access to v-for scope variables. It is best to avoid the ambiguity ` +
                `with <template> tags or use a computed property that filters v-for ` +
                `data source.`,
            link: `https://v3-migration.vuejs.org/breaking-changes/v-if-v-for.html`
        },
        ["COMPILER_NATIVE_TEMPLATE" /* CompilerDeprecationTypes.COMPILER_NATIVE_TEMPLATE */]: {
            message: `<template> with no special directives will render as a native template ` +
                `element instead of its inner content in Vue 3.`
        },
        ["COMPILER_INLINE_TEMPLATE" /* CompilerDeprecationTypes.COMPILER_INLINE_TEMPLATE */]: {
            message: `"inline-template" has been removed in Vue 3.`,
            link: `https://v3-migration.vuejs.org/breaking-changes/inline-template-attribute.html`
        },
        ["COMPILER_FILTER" /* CompilerDeprecationTypes.COMPILER_FILTERS */]: {
            message: `filters have been removed in Vue 3. ` +
                `The "|" symbol will be treated as native JavaScript bitwise OR operator. ` +
                `Use method calls or computed properties instead.`,
            link: `https://v3-migration.vuejs.org/breaking-changes/filters.html`
        }
    };
    function getCompatValue(key, context) {
        const config = context.options
            ? context.options.compatConfig
            : context.compatConfig;
        const value = config && config[key];
        if (key === 'MODE') {
            return value || 3; // compiler defaults to v3 behavior
        }
        else {
            return value;
        }
    }
    function isCompatEnabled(key, context) {
        const mode = getCompatValue('MODE', context);
        const value = getCompatValue(key, context);
        // in v3 mode, only enable if explicitly set to true
        // otherwise enable for any non-false value
        return mode === 3 ? value === true : value !== false;
    }
    function checkCompatEnabled(key, context, loc, ...args) {
        const enabled = isCompatEnabled(key, context);
        if (enabled) {
            warnDeprecation(key, context, loc, ...args);
        }
        return enabled;
    }
    function warnDeprecation(key, context, loc, ...args) {
        const val = getCompatValue(key, context);
        if (val === 'suppress-warning') {
            return;
        }
        const { message, link } = deprecationData[key];
        const msg = `(deprecation ${key}) ${typeof message === 'function' ? message(...args) : message}${link ? `\n  Details: ${link}` : ``}`;
        const err = new SyntaxError(msg);
        err.code = key;
        if (loc)
            err.loc = loc;
        context.onWarn(err);
    }
  
    // The default decoder only provides escapes for characters reserved as part of
    // the template syntax, and is only used if the custom renderer did not provide
    // a platform-specific decoder.
    const decodeRE = /&(gt|lt|amp|apos|quot);/g;
    const decodeMap = {
        gt: '>',
        lt: '<',
        amp: '&',
        apos: "'",
        quot: '"'
    };
    const defaultParserOptions = {
        delimiters: [`{{`, `}}`],
        getNamespace: () => 0 /* Namespaces.HTML */,
        getTextMode: () => 0 /* TextModes.DATA */,
        isVoidTag: NO,
        isPreTag: NO,
        isCustomElement: NO,
        decodeEntities: (rawText) => rawText.replace(decodeRE, (_, p1) => decodeMap[p1]),
        onError: defaultOnError,
        onWarn: defaultOnWarn,
        comments: true
    };
    function baseParse(content, options = {}) {
        const context = createParserContext(content, options);
        const start = getCursor(context);
        return createRoot(parseChildren(context, 0 /* TextModes.DATA */, []), getSelection(context, start));
    }
    function createParserContext(content, rawOptions) {
        const options = extend({}, defaultParserOptions);
        let key;
        for (key in rawOptions) {
            // @ts-ignore
            options[key] =
                rawOptions[key] === undefined
                    ? defaultParserOptions[key]
                    : rawOptions[key];
        }
        return {
            options,
            column: 1,
            line: 1,
            offset: 0,
            originalSource: content,
            source: content,
            inPre: false,
            inVPre: false,
            onWarn: options.onWarn
        };
    }
    function parseChildren(context, mode, ancestors) {
        const parent = last(ancestors);
        const ns = parent ? parent.ns : 0 /* Namespaces.HTML */;
        const nodes = [];
        while (!isEnd(context, mode, ancestors)) {
            const s = context.source;
            let node = undefined;
            if (mode === 0 /* TextModes.DATA */ || mode === 1 /* TextModes.RCDATA */) {
                if (!context.inVPre && startsWith(s, context.options.delimiters[0])) {
                    // '{{'
                    node = parseInterpolation(context, mode);
                }
                else if (mode === 0 /* TextModes.DATA */ && s[0] === '<') {
                    // https://html.spec.whatwg.org/multipage/parsing.html#tag-open-state
                    if (s.length === 1) {
                        emitError(context, 5 /* ErrorCodes.EOF_BEFORE_TAG_NAME */, 1);
                    }
                    else if (s[1] === '!') {
                        // https://html.spec.whatwg.org/multipage/parsing.html#markup-declaration-open-state
                        if (startsWith(s, '<!--')) {
                            node = parseComment(context);
                        }
                        else if (startsWith(s, '<!DOCTYPE')) {
                            // Ignore DOCTYPE by a limitation.
                            node = parseBogusComment(context);
                        }
                        else if (startsWith(s, '<![CDATA[')) {
                            if (ns !== 0 /* Namespaces.HTML */) {
                                node = parseCDATA(context, ancestors);
                            }
                            else {
                                emitError(context, 1 /* ErrorCodes.CDATA_IN_HTML_CONTENT */);
                                node = parseBogusComment(context);
                            }
                        }
                        else {
                            emitError(context, 11 /* ErrorCodes.INCORRECTLY_OPENED_COMMENT */);
                            node = parseBogusComment(context);
                        }
                    }
                    else if (s[1] === '/') {
                        // https://html.spec.whatwg.org/multipage/parsing.html#end-tag-open-state
                        if (s.length === 2) {
                            emitError(context, 5 /* ErrorCodes.EOF_BEFORE_TAG_NAME */, 2);
                        }
                        else if (s[2] === '>') {
                            emitError(context, 14 /* ErrorCodes.MISSING_END_TAG_NAME */, 2);
                            advanceBy(context, 3);
                            continue;
                        }
                        else if (/[a-z]/i.test(s[2])) {
                            emitError(context, 23 /* ErrorCodes.X_INVALID_END_TAG */);
                            parseTag(context, 1 /* TagType.End */, parent);
                            continue;
                        }
                        else {
                            emitError(context, 12 /* ErrorCodes.INVALID_FIRST_CHARACTER_OF_TAG_NAME */, 2);
                            node = parseBogusComment(context);
                        }
                    }
                    else if (/[a-z]/i.test(s[1])) {
                        node = parseElement(context, ancestors);
                    }
                    else if (s[1] === '?') {
                        emitError(context, 21 /* ErrorCodes.UNEXPECTED_QUESTION_MARK_INSTEAD_OF_TAG_NAME */, 1);
                        node = parseBogusComment(context);
                    }
                    else {
                        emitError(context, 12 /* ErrorCodes.INVALID_FIRST_CHARACTER_OF_TAG_NAME */, 1);
                    }
                }
            }
            if (!node) {
                node = parseText(context, mode);
            }
            if (isArray(node)) {
                for (let i = 0; i < node.length; i++) {
                    pushNode(nodes, node[i]);
                }
            }
            else {
                pushNode(nodes, node);
            }
        }
        // Whitespace handling strategy like v2
        let removedWhitespace = false;
        if (mode !== 2 /* TextModes.RAWTEXT */ && mode !== 1 /* TextModes.RCDATA */) {
            const shouldCondense = context.options.whitespace !== 'preserve';
            for (let i = 0; i < nodes.length; i++) {
                const node = nodes[i];
                if (node.type === 2 /* NodeTypes.TEXT */) {
                    if (!context.inPre) {
                        if (!/[^\t\r\n\f ]/.test(node.content)) {
                            const prev = nodes[i - 1];
                            const next = nodes[i + 1];
                            // Remove if:
                            // - the whitespace is the first or last node, or:
                            // - (condense mode) the whitespace is between twos comments, or:
                            // - (condense mode) the whitespace is between comment and element, or:
                            // - (condense mode) the whitespace is between two elements AND contains newline
                            if (!prev ||
                                !next ||
                                (shouldCondense &&
                                    ((prev.type === 3 /* NodeTypes.COMMENT */ &&
                                        next.type === 3 /* NodeTypes.COMMENT */) ||
                                        (prev.type === 3 /* NodeTypes.COMMENT */ &&
                                            next.type === 1 /* NodeTypes.ELEMENT */) ||
                                        (prev.type === 1 /* NodeTypes.ELEMENT */ &&
                                            next.type === 3 /* NodeTypes.COMMENT */) ||
                                        (prev.type === 1 /* NodeTypes.ELEMENT */ &&
                                            next.type === 1 /* NodeTypes.ELEMENT */ &&
                                            /[\r\n]/.test(node.content))))) {
                                removedWhitespace = true;
                                nodes[i] = null;
                            }
                            else {
                                // Otherwise, the whitespace is condensed into a single space
                                node.content = ' ';
                            }
                        }
                        else if (shouldCondense) {
                            // in condense mode, consecutive whitespaces in text are condensed
                            // down to a single space.
                            node.content = node.content.replace(/[\t\r\n\f ]+/g, ' ');
                        }
                    }
                    else {
                        // #6410 normalize windows newlines in <pre>:
                        // in SSR, browsers normalize server-rendered \r\n into a single \n
                        // in the DOM
                        node.content = node.content.replace(/\r\n/g, '\n');
                    }
                }
                // Remove comment nodes if desired by configuration.
                else if (node.type === 3 /* NodeTypes.COMMENT */ && !context.options.comments) {
                    removedWhitespace = true;
                    nodes[i] = null;
                }
            }
            if (context.inPre && parent && context.options.isPreTag(parent.tag)) {
                // remove leading newline per html spec
                // https://html.spec.whatwg.org/multipage/grouping-content.html#the-pre-element
                const first = nodes[0];
                if (first && first.type === 2 /* NodeTypes.TEXT */) {
                    first.content = first.content.replace(/^\r?\n/, '');
                }
            }
        }
        return removedWhitespace ? nodes.filter(Boolean) : nodes;
    }
    function pushNode(nodes, node) {
        if (node.type === 2 /* NodeTypes.TEXT */) {
            const prev = last(nodes);
            // Merge if both this and the previous node are text and those are
            // consecutive. This happens for cases like "a < b".
            if (prev &&
                prev.type === 2 /* NodeTypes.TEXT */ &&
                prev.loc.end.offset === node.loc.start.offset) {
                prev.content += node.content;
                prev.loc.end = node.loc.end;
                prev.loc.source += node.loc.source;
                return;
            }
        }
        nodes.push(node);
    }
    function parseCDATA(context, ancestors) {
        advanceBy(context, 9);
        const nodes = parseChildren(context, 3 /* TextModes.CDATA */, ancestors);
        if (context.source.length === 0) {
            emitError(context, 6 /* ErrorCodes.EOF_IN_CDATA */);
        }
        else {
            advanceBy(context, 3);
        }
        return nodes;
    }
    function parseComment(context) {
        const start = getCursor(context);
        let content;
        // Regular comment.
        const match = /--(\!)?>/.exec(context.source);
        if (!match) {
            content = context.source.slice(4);
            advanceBy(context, context.source.length);
            emitError(context, 7 /* ErrorCodes.EOF_IN_COMMENT */);
        }
        else {
            if (match.index <= 3) {
                emitError(context, 0 /* ErrorCodes.ABRUPT_CLOSING_OF_EMPTY_COMMENT */);
            }
            if (match[1]) {
                emitError(context, 10 /* ErrorCodes.INCORRECTLY_CLOSED_COMMENT */);
            }
            content = context.source.slice(4, match.index);
            // Advancing with reporting nested comments.
            const s = context.source.slice(0, match.index);
            let prevIndex = 1, nestedIndex = 0;
            while ((nestedIndex = s.indexOf('<!--', prevIndex)) !== -1) {
                advanceBy(context, nestedIndex - prevIndex + 1);
                if (nestedIndex + 4 < s.length) {
                    emitError(context, 16 /* ErrorCodes.NESTED_COMMENT */);
                }
                prevIndex = nestedIndex + 1;
            }
            advanceBy(context, match.index + match[0].length - prevIndex + 1);
        }
        return {
            type: 3 /* NodeTypes.COMMENT */,
            content,
            loc: getSelection(context, start)
        };
    }
    function parseBogusComment(context) {
        const start = getCursor(context);
        const contentStart = context.source[1] === '?' ? 1 : 2;
        let content;
        const closeIndex = context.source.indexOf('>');
        if (closeIndex === -1) {
            content = context.source.slice(contentStart);
            advanceBy(context, context.source.length);
        }
        else {
            content = context.source.slice(contentStart, closeIndex);
            advanceBy(context, closeIndex + 1);
        }
        return {
            type: 3 /* NodeTypes.COMMENT */,
            content,
            loc: getSelection(context, start)
        };
    }
    function parseElement(context, ancestors) {
        // Start tag.
        const wasInPre = context.inPre;
        const wasInVPre = context.inVPre;
        const parent = last(ancestors);
        const element = parseTag(context, 0 /* TagType.Start */, parent);
        const isPreBoundary = context.inPre && !wasInPre;
        const isVPreBoundary = context.inVPre && !wasInVPre;
        if (element.isSelfClosing || context.options.isVoidTag(element.tag)) {
            // #4030 self-closing <pre> tag
            if (isPreBoundary) {
                context.inPre = false;
            }
            if (isVPreBoundary) {
                context.inVPre = false;
            }
            return element;
        }
        // Children.
        ancestors.push(element);
        const mode = context.options.getTextMode(element, parent);
        const children = parseChildren(context, mode, ancestors);
        ancestors.pop();
        element.children = children;
        // End tag.
        if (startsWithEndTagOpen(context.source, element.tag)) {
            parseTag(context, 1 /* TagType.End */, parent);
        }
        else {
            emitError(context, 24 /* ErrorCodes.X_MISSING_END_TAG */, 0, element.loc.start);
            if (context.source.length === 0 && element.tag.toLowerCase() === 'script') {
                const first = children[0];
                if (first && startsWith(first.loc.source, '<!--')) {
                    emitError(context, 8 /* ErrorCodes.EOF_IN_SCRIPT_HTML_COMMENT_LIKE_TEXT */);
                }
            }
        }
        element.loc = getSelection(context, element.loc.start);
        if (isPreBoundary) {
            context.inPre = false;
        }
        if (isVPreBoundary) {
            context.inVPre = false;
        }
        return element;
    }
    const isSpecialTemplateDirective = /*#__PURE__*/ makeMap(`if,else,else-if,for,slot`);
    function parseTag(context, type, parent) {
        // Tag open.
        const start = getCursor(context);
        const match = /^<\/?([a-z][^\t\r\n\f />]*)/i.exec(context.source);
        const tag = match[1];
        const ns = context.options.getNamespace(tag, parent);
        advanceBy(context, match[0].length);
        advanceSpaces(context);
        // save current state in case we need to re-parse attributes with v-pre
        const cursor = getCursor(context);
        const currentSource = context.source;
        // check <pre> tag
        if (context.options.isPreTag(tag)) {
            context.inPre = true;
        }
        // Attributes.
        let props = parseAttributes(context, type);
        // check v-pre
        if (type === 0 /* TagType.Start */ &&
            !context.inVPre &&
            props.some(p => p.type === 7 /* NodeTypes.DIRECTIVE */ && p.name === 'pre')) {
            context.inVPre = true;
            // reset context
            extend(context, cursor);
            context.source = currentSource;
            // re-parse attrs and filter out v-pre itself
            props = parseAttributes(context, type).filter(p => p.name !== 'v-pre');
        }
        // Tag close.
        let isSelfClosing = false;
        if (context.source.length === 0) {
            emitError(context, 9 /* ErrorCodes.EOF_IN_TAG */);
        }
        else {
            isSelfClosing = startsWith(context.source, '/>');
            if (type === 1 /* TagType.End */ && isSelfClosing) {
                emitError(context, 4 /* ErrorCodes.END_TAG_WITH_TRAILING_SOLIDUS */);
            }
            advanceBy(context, isSelfClosing ? 2 : 1);
        }
        if (type === 1 /* TagType.End */) {
            return;
        }
        let tagType = 0 /* ElementTypes.ELEMENT */;
        if (!context.inVPre) {
            if (tag === 'slot') {
                tagType = 2 /* ElementTypes.SLOT */;
            }
            else if (tag === 'template') {
                if (props.some(p => p.type === 7 /* NodeTypes.DIRECTIVE */ && isSpecialTemplateDirective(p.name))) {
                    tagType = 3 /* ElementTypes.TEMPLATE */;
                }
            }
            else if (isComponent(tag, props, context)) {
                tagType = 1 /* ElementTypes.COMPONENT */;
            }
        }
        return {
            type: 1 /* NodeTypes.ELEMENT */,
            ns,
            tag,
            tagType,
            props,
            isSelfClosing,
            children: [],
            loc: getSelection(context, start),
            codegenNode: undefined // to be created during transform phase
        };
    }
    function isComponent(tag, props, context) {
        const options = context.options;
        if (options.isCustomElement(tag)) {
            return false;
        }
        if (tag === 'component' ||
            /^[A-Z]/.test(tag) ||
            isCoreComponent(tag) ||
            (options.isBuiltInComponent && options.isBuiltInComponent(tag)) ||
            (options.isNativeTag && !options.isNativeTag(tag))) {
            return true;
        }
        // at this point the tag should be a native tag, but check for potential "is"
        // casting
        for (let i = 0; i < props.length; i++) {
            const p = props[i];
            if (p.type === 6 /* NodeTypes.ATTRIBUTE */) {
                if (p.name === 'is' && p.value) {
                    if (p.value.content.startsWith('vue:')) {
                        return true;
                    }
                }
            }
            else {
                // directive
                // v-is (TODO Deprecate)
                if (p.name === 'is') {
                    return true;
                }
                else if (
                // :is on plain element - only treat as component in compat mode
                p.name === 'bind' &&
                    isStaticArgOf(p.arg, 'is') &&
                    false &&
                    checkCompatEnabled("COMPILER_IS_ON_ELEMENT" /* CompilerDeprecationTypes.COMPILER_IS_ON_ELEMENT */, context, p.loc)) {
                    return true;
                }
            }
        }
    }
    function parseAttributes(context, type) {
        const props = [];
        const attributeNames = new Set();
        while (context.source.length > 0 &&
            !startsWith(context.source, '>') &&
            !startsWith(context.source, '/>')) {
            if (startsWith(context.source, '/')) {
                emitError(context, 22 /* ErrorCodes.UNEXPECTED_SOLIDUS_IN_TAG */);
                advanceBy(context, 1);
                advanceSpaces(context);
                continue;
            }
            if (type === 1 /* TagType.End */) {
                emitError(context, 3 /* ErrorCodes.END_TAG_WITH_ATTRIBUTES */);
            }
            const attr = parseAttribute(context, attributeNames);
            // Trim whitespace between class
            // https://github.com/vuejs/core/issues/4251
            if (attr.type === 6 /* NodeTypes.ATTRIBUTE */ &&
                attr.value &&
                attr.name === 'class') {
                attr.value.content = attr.value.content.replace(/\s+/g, ' ').trim();
            }
            if (type === 0 /* TagType.Start */) {
                props.push(attr);
            }
            if (/^[^\t\r\n\f />]/.test(context.source)) {
                emitError(context, 15 /* ErrorCodes.MISSING_WHITESPACE_BETWEEN_ATTRIBUTES */);
            }
            advanceSpaces(context);
        }
        return props;
    }
    function parseAttribute(context, nameSet) {
        // Name.
        const start = getCursor(context);
        const match = /^[^\t\r\n\f />][^\t\r\n\f />=]*/.exec(context.source);
        const name = match[0];
        if (nameSet.has(name)) {
            emitError(context, 2 /* ErrorCodes.DUPLICATE_ATTRIBUTE */);
        }
        nameSet.add(name);
        if (name[0] === '=') {
            emitError(context, 19 /* ErrorCodes.UNEXPECTED_EQUALS_SIGN_BEFORE_ATTRIBUTE_NAME */);
        }
        {
            const pattern = /["'<]/g;
            let m;
            while ((m = pattern.exec(name))) {
                emitError(context, 17 /* ErrorCodes.UNEXPECTED_CHARACTER_IN_ATTRIBUTE_NAME */, m.index);
            }
        }
        advanceBy(context, name.length);
        // Value
        let value = undefined;
        if (/^[\t\r\n\f ]*=/.test(context.source)) {
            advanceSpaces(context);
            advanceBy(context, 1);
            advanceSpaces(context);
            value = parseAttributeValue(context);
            if (!value) {
                emitError(context, 13 /* ErrorCodes.MISSING_ATTRIBUTE_VALUE */);
            }
        }
        const loc = getSelection(context, start);
        if (!context.inVPre && /^(v-[A-Za-z0-9-]|:|\.|@|#)/.test(name)) {
            const match = /(?:^v-([a-z0-9-]+))?(?:(?::|^\.|^@|^#)(\[[^\]]+\]|[^\.]+))?(.+)?$/i.exec(name);
            let isPropShorthand = startsWith(name, '.');
            let dirName = match[1] ||
                (isPropShorthand || startsWith(name, ':')
                    ? 'bind'
                    : startsWith(name, '@')
                        ? 'on'
                        : 'slot');
            let arg;
            if (match[2]) {
                const isSlot = dirName === 'slot';
                const startOffset = name.lastIndexOf(match[2]);
                const loc = getSelection(context, getNewPosition(context, start, startOffset), getNewPosition(context, start, startOffset + match[2].length + ((isSlot && match[3]) || '').length));
                let content = match[2];
                let isStatic = true;
                if (content.startsWith('[')) {
                    isStatic = false;
                    if (!content.endsWith(']')) {
                        emitError(context, 27 /* ErrorCodes.X_MISSING_DYNAMIC_DIRECTIVE_ARGUMENT_END */);
                        content = content.slice(1);
                    }
                    else {
                        content = content.slice(1, content.length - 1);
                    }
                }
                else if (isSlot) {
                    // #1241 special case for v-slot: vuetify relies extensively on slot
                    // names containing dots. v-slot doesn't have any modifiers and Vue 2.x
                    // supports such usage so we are keeping it consistent with 2.x.
                    content += match[3] || '';
                }
                arg = {
                    type: 4 /* NodeTypes.SIMPLE_EXPRESSION */,
                    content,
                    isStatic,
                    constType: isStatic
                        ? 3 /* ConstantTypes.CAN_STRINGIFY */
                        : 0 /* ConstantTypes.NOT_CONSTANT */,
                    loc
                };
            }
            if (value && value.isQuoted) {
                const valueLoc = value.loc;
                valueLoc.start.offset++;
                valueLoc.start.column++;
                valueLoc.end = advancePositionWithClone(valueLoc.start, value.content);
                valueLoc.source = valueLoc.source.slice(1, -1);
            }
            const modifiers = match[3] ? match[3].slice(1).split('.') : [];
            if (isPropShorthand)
                modifiers.push('prop');
            return {
                type: 7 /* NodeTypes.DIRECTIVE */,
                name: dirName,
                exp: value && {
                    type: 4 /* NodeTypes.SIMPLE_EXPRESSION */,
                    content: value.content,
                    isStatic: false,
                    // Treat as non-constant by default. This can be potentially set to
                    // other values by `transformExpression` to make it eligible for hoisting.
                    constType: 0 /* ConstantTypes.NOT_CONSTANT */,
                    loc: value.loc
                },
                arg,
                modifiers,
                loc
            };
        }
        // missing directive name or illegal directive name
        if (!context.inVPre && startsWith(name, 'v-')) {
            emitError(context, 26 /* ErrorCodes.X_MISSING_DIRECTIVE_NAME */);
        }
        return {
            type: 6 /* NodeTypes.ATTRIBUTE */,
            name,
            value: value && {
                type: 2 /* NodeTypes.TEXT */,
                content: value.content,
                loc: value.loc
            },
            loc
        };
    }
    function parseAttributeValue(context) {
        const start = getCursor(context);
        let content;
        const quote = context.source[0];
        const isQuoted = quote === `"` || quote === `'`;
        if (isQuoted) {
            // Quoted value.
            advanceBy(context, 1);
            const endIndex = context.source.indexOf(quote);
            if (endIndex === -1) {
                content = parseTextData(context, context.source.length, 4 /* TextModes.ATTRIBUTE_VALUE */);
            }
            else {
                content = parseTextData(context, endIndex, 4 /* TextModes.ATTRIBUTE_VALUE */);
                advanceBy(context, 1);
            }
        }
        else {
            // Unquoted
            const match = /^[^\t\r\n\f >]+/.exec(context.source);
            if (!match) {
                return undefined;
            }
            const unexpectedChars = /["'<=`]/g;
            let m;
            while ((m = unexpectedChars.exec(match[0]))) {
                emitError(context, 18 /* ErrorCodes.UNEXPECTED_CHARACTER_IN_UNQUOTED_ATTRIBUTE_VALUE */, m.index);
            }
            content = parseTextData(context, match[0].length, 4 /* TextModes.ATTRIBUTE_VALUE */);
        }
        return { content, isQuoted, loc: getSelection(context, start) };
    }
    function parseInterpolation(context, mode) {
        const [open, close] = context.options.delimiters;
        const closeIndex = context.source.indexOf(close, open.length);
        if (closeIndex === -1) {
            emitError(context, 25 /* ErrorCodes.X_MISSING_INTERPOLATION_END */);
            return undefined;
        }
        const start = getCursor(context);
        advanceBy(context, open.length);
        const innerStart = getCursor(context);
        const innerEnd = getCursor(context);
        const rawContentLength = closeIndex - open.length;
        const rawContent = context.source.slice(0, rawContentLength);
        const preTrimContent = parseTextData(context, rawContentLength, mode);
        const content = preTrimContent.trim();
        const startOffset = preTrimContent.indexOf(content);
        if (startOffset > 0) {
            advancePositionWithMutation(innerStart, rawContent, startOffset);
        }
        const endOffset = rawContentLength - (preTrimContent.length - content.length - startOffset);
        advancePositionWithMutation(innerEnd, rawContent, endOffset);
        advanceBy(context, close.length);
        return {
            type: 5 /* NodeTypes.INTERPOLATION */,
            content: {
                type: 4 /* NodeTypes.SIMPLE_EXPRESSION */,
                isStatic: false,
                // Set `isConstant` to false by default and will decide in transformExpression
                constType: 0 /* ConstantTypes.NOT_CONSTANT */,
                content,
                loc: getSelection(context, innerStart, innerEnd)
            },
            loc: getSelection(context, start)
        };
    }
    function parseText(context, mode) {
        const endTokens = mode === 3 /* TextModes.CDATA */ ? [']]>'] : ['<', context.options.delimiters[0]];
        let endIndex = context.source.length;
        for (let i = 0; i < endTokens.length; i++) {
            const index = context.source.indexOf(endTokens[i], 1);
            if (index !== -1 && endIndex > index) {
                endIndex = index;
            }
        }
        const start = getCursor(context);
        const content = parseTextData(context, endIndex, mode);
        return {
            type: 2 /* NodeTypes.TEXT */,
            content,
            loc: getSelection(context, start)
        };
    }
    /**
     * Get text data with a given length from the current location.
     * This translates HTML entities in the text data.
     */
    function parseTextData(context, length, mode) {
        const rawText = context.source.slice(0, length);
        advanceBy(context, length);
        if (mode === 2 /* TextModes.RAWTEXT */ ||
            mode === 3 /* TextModes.CDATA */ ||
            !rawText.includes('&')) {
            return rawText;
        }
        else {
            // DATA or RCDATA containing "&"". Entity decoding required.
            return context.options.decodeEntities(rawText, mode === 4 /* TextModes.ATTRIBUTE_VALUE */);
        }
    }
    function getCursor(context) {
        const { column, line, offset } = context;
        return { column, line, offset };
    }
    function getSelection(context, start, end) {
        end = end || getCursor(context);
        return {
            start,
            end,
            source: context.originalSource.slice(start.offset, end.offset)
        };
    }
    function last(xs) {
        return xs[xs.length - 1];
    }
    function startsWith(source, searchString) {
        return source.startsWith(searchString);
    }
    function advanceBy(context, numberOfCharacters) {
        const { source } = context;
        advancePositionWithMutation(context, source, numberOfCharacters);
        context.source = source.slice(numberOfCharacters);
    }
    function advanceSpaces(context) {
        const match = /^[\t\r\n\f ]+/.exec(context.source);
        if (match) {
            advanceBy(context, match[0].length);
        }
    }
    function getNewPosition(context, start, numberOfCharacters) {
        return advancePositionWithClone(start, context.originalSource.slice(start.offset, numberOfCharacters), numberOfCharacters);
    }
    function emitError(context, code, offset, loc = getCursor(context)) {
        if (offset) {
            loc.offset += offset;
            loc.column += offset;
        }
        context.options.onError(createCompilerError(code, {
            start: loc,
            end: loc,
            source: ''
        }));
    }
    function isEnd(context, mode, ancestors) {
        const s = context.source;
        switch (mode) {
            case 0 /* TextModes.DATA */:
                if (startsWith(s, '</')) {
                    // TODO: probably bad performance
                    for (let i = ancestors.length - 1; i >= 0; --i) {
                        if (startsWithEndTagOpen(s, ancestors[i].tag)) {
                            return true;
                        }
                    }
                }
                break;
            case 1 /* TextModes.RCDATA */:
            case 2 /* TextModes.RAWTEXT */: {
                const parent = last(ancestors);
                if (parent && startsWithEndTagOpen(s, parent.tag)) {
                    return true;
                }
                break;
            }
            case 3 /* TextModes.CDATA */:
                if (startsWith(s, ']]>')) {
                    return true;
                }
                break;
        }
        return !s;
    }
    function startsWithEndTagOpen(source, tag) {
        return (startsWith(source, '</') &&
            source.slice(2, 2 + tag.length).toLowerCase() === tag.toLowerCase() &&
            /[\t\r\n\f />]/.test(source[2 + tag.length] || '>'));
    }
  
    function hoistStatic(root, context) {
        walk(root, context, 
        // Root node is unfortunately non-hoistable due to potential parent
        // fallthrough attributes.
        isSingleElementRoot(root, root.children[0]));
    }
    function isSingleElementRoot(root, child) {
        const { children } = root;
        return (children.length === 1 &&
            child.type === 1 /* NodeTypes.ELEMENT */ &&
            !isSlotOutlet(child));
    }
    function walk(node, context, doNotHoistNode = false) {
        const { children } = node;
        const originalCount = children.length;
        let hoistedCount = 0;
        for (let i = 0; i < children.length; i++) {
            const child = children[i];
            // only plain elements & text calls are eligible for hoisting.
            if (child.type === 1 /* NodeTypes.ELEMENT */ &&
                child.tagType === 0 /* ElementTypes.ELEMENT */) {
                const constantType = doNotHoistNode
                    ? 0 /* ConstantTypes.NOT_CONSTANT */
                    : getConstantType(child, context);
                if (constantType > 0 /* ConstantTypes.NOT_CONSTANT */) {
                    if (constantType >= 2 /* ConstantTypes.CAN_HOIST */) {
                        child.codegenNode.patchFlag =
                            -1 /* PatchFlags.HOISTED */ + (` /* HOISTED */` );
                        child.codegenNode = context.hoist(child.codegenNode);
                        hoistedCount++;
                        continue;
                    }
                }
                else {
                    // node may contain dynamic children, but its props may be eligible for
                    // hoisting.
                    const codegenNode = child.codegenNode;
                    if (codegenNode.type === 13 /* NodeTypes.VNODE_CALL */) {
                        const flag = getPatchFlag(codegenNode);
                        if ((!flag ||
                            flag === 512 /* PatchFlags.NEED_PATCH */ ||
                            flag === 1 /* PatchFlags.TEXT */) &&
                            getGeneratedPropsConstantType(child, context) >=
                                2 /* ConstantTypes.CAN_HOIST */) {
                            const props = getNodeProps(child);
                            if (props) {
                                codegenNode.props = context.hoist(props);
                            }
                        }
                        if (codegenNode.dynamicProps) {
                            codegenNode.dynamicProps = context.hoist(codegenNode.dynamicProps);
                        }
                    }
                }
            }
            // walk further
            if (child.type === 1 /* NodeTypes.ELEMENT */) {
                const isComponent = child.tagType === 1 /* ElementTypes.COMPONENT */;
                if (isComponent) {
                    context.scopes.vSlot++;
                }
                walk(child, context);
                if (isComponent) {
                    context.scopes.vSlot--;
                }
            }
            else if (child.type === 11 /* NodeTypes.FOR */) {
                // Do not hoist v-for single child because it has to be a block
                walk(child, context, child.children.length === 1);
            }
            else if (child.type === 9 /* NodeTypes.IF */) {
                for (let i = 0; i < child.branches.length; i++) {
                    // Do not hoist v-if single child because it has to be a block
                    walk(child.branches[i], context, child.branches[i].children.length === 1);
                }
            }
        }
        if (hoistedCount && context.transformHoist) {
            context.transformHoist(children, context, node);
        }
        // all children were hoisted - the entire children array is hoistable.
        if (hoistedCount &&
            hoistedCount === originalCount &&
            node.type === 1 /* NodeTypes.ELEMENT */ &&
            node.tagType === 0 /* ElementTypes.ELEMENT */ &&
            node.codegenNode &&
            node.codegenNode.type === 13 /* NodeTypes.VNODE_CALL */ &&
            isArray(node.codegenNode.children)) {
            node.codegenNode.children = context.hoist(createArrayExpression(node.codegenNode.children));
        }
    }
    function getConstantType(node, context) {
        const { constantCache } = context;
        switch (node.type) {
            case 1 /* NodeTypes.ELEMENT */:
                if (node.tagType !== 0 /* ElementTypes.ELEMENT */) {
                    return 0 /* ConstantTypes.NOT_CONSTANT */;
                }
                const cached = constantCache.get(node);
                if (cached !== undefined) {
                    return cached;
                }
                const codegenNode = node.codegenNode;
                if (codegenNode.type !== 13 /* NodeTypes.VNODE_CALL */) {
                    return 0 /* ConstantTypes.NOT_CONSTANT */;
                }
                if (codegenNode.isBlock &&
                    node.tag !== 'svg' &&
                    node.tag !== 'foreignObject') {
                    return 0 /* ConstantTypes.NOT_CONSTANT */;
                }
                const flag = getPatchFlag(codegenNode);
                if (!flag) {
                    let returnType = 3 /* ConstantTypes.CAN_STRINGIFY */;
                    // Element itself has no patch flag. However we still need to check:
                    // 1. Even for a node with no patch flag, it is possible for it to contain
                    // non-hoistable expressions that refers to scope variables, e.g. compiler
                    // injected keys or cached event handlers. Therefore we need to always
                    // check the codegenNode's props to be sure.
                    const generatedPropsType = getGeneratedPropsConstantType(node, context);
                    if (generatedPropsType === 0 /* ConstantTypes.NOT_CONSTANT */) {
                        constantCache.set(node, 0 /* ConstantTypes.NOT_CONSTANT */);
                        return 0 /* ConstantTypes.NOT_CONSTANT */;
                    }
                    if (generatedPropsType < returnType) {
                        returnType = generatedPropsType;
                    }
                    // 2. its children.
                    for (let i = 0; i < node.children.length; i++) {
                        const childType = getConstantType(node.children[i], context);
                        if (childType === 0 /* ConstantTypes.NOT_CONSTANT */) {
                            constantCache.set(node, 0 /* ConstantTypes.NOT_CONSTANT */);
                            return 0 /* ConstantTypes.NOT_CONSTANT */;
                        }
                        if (childType < returnType) {
                            returnType = childType;
                        }
                    }
                    // 3. if the type is not already CAN_SKIP_PATCH which is the lowest non-0
                    // type, check if any of the props can cause the type to be lowered
                    // we can skip can_patch because it's guaranteed by the absence of a
                    // patchFlag.
                    if (returnType > 1 /* ConstantTypes.CAN_SKIP_PATCH */) {
                        for (let i = 0; i < node.props.length; i++) {
                            const p = node.props[i];
                            if (p.type === 7 /* NodeTypes.DIRECTIVE */ && p.name === 'bind' && p.exp) {
                                const expType = getConstantType(p.exp, context);
                                if (expType === 0 /* ConstantTypes.NOT_CONSTANT */) {
                                    constantCache.set(node, 0 /* ConstantTypes.NOT_CONSTANT */);
                                    return 0 /* ConstantTypes.NOT_CONSTANT */;
                                }
                                if (expType < returnType) {
                                    returnType = expType;
                                }
                            }
                        }
                    }
                    // only svg/foreignObject could be block here, however if they are
                    // static then they don't need to be blocks since there will be no
                    // nested updates.
                    if (codegenNode.isBlock) {
                        // except set custom directives.
                        for (let i = 0; i < node.props.length; i++) {
                            const p = node.props[i];
                            if (p.type === 7 /* NodeTypes.DIRECTIVE */) {
                                constantCache.set(node, 0 /* ConstantTypes.NOT_CONSTANT */);
                                return 0 /* ConstantTypes.NOT_CONSTANT */;
                            }
                        }
                        context.removeHelper(OPEN_BLOCK);
                        context.removeHelper(getVNodeBlockHelper(context.inSSR, codegenNode.isComponent));
                        codegenNode.isBlock = false;
                        context.helper(getVNodeHelper(context.inSSR, codegenNode.isComponent));
                    }
                    constantCache.set(node, returnType);
                    return returnType;
                }
                else {
                    constantCache.set(node, 0 /* ConstantTypes.NOT_CONSTANT */);
                    return 0 /* ConstantTypes.NOT_CONSTANT */;
                }
            case 2 /* NodeTypes.TEXT */:
            case 3 /* NodeTypes.COMMENT */:
                return 3 /* ConstantTypes.CAN_STRINGIFY */;
            case 9 /* NodeTypes.IF */:
            case 11 /* NodeTypes.FOR */:
            case 10 /* NodeTypes.IF_BRANCH */:
                return 0 /* ConstantTypes.NOT_CONSTANT */;
            case 5 /* NodeTypes.INTERPOLATION */:
            case 12 /* NodeTypes.TEXT_CALL */:
                return getConstantType(node.content, context);
            case 4 /* NodeTypes.SIMPLE_EXPRESSION */:
                return node.constType;
            case 8 /* NodeTypes.COMPOUND_EXPRESSION */:
                let returnType = 3 /* ConstantTypes.CAN_STRINGIFY */;
                for (let i = 0; i < node.children.length; i++) {
                    const child = node.children[i];
                    if (isString(child) || isSymbol(child)) {
                        continue;
                    }
                    const childType = getConstantType(child, context);
                    if (childType === 0 /* ConstantTypes.NOT_CONSTANT */) {
                        return 0 /* ConstantTypes.NOT_CONSTANT */;
                    }
                    else if (childType < returnType) {
                        returnType = childType;
                    }
                }
                return returnType;
            default:
                return 0 /* ConstantTypes.NOT_CONSTANT */;
        }
    }
    const allowHoistedHelperSet = new Set([
        NORMALIZE_CLASS,
        NORMALIZE_STYLE,
        NORMALIZE_PROPS,
        GUARD_REACTIVE_PROPS
    ]);
    function getConstantTypeOfHelperCall(value, context) {
        if (value.type === 14 /* NodeTypes.JS_CALL_EXPRESSION */ &&
            !isString(value.callee) &&
            allowHoistedHelperSet.has(value.callee)) {
            const arg = value.arguments[0];
            if (arg.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */) {
                return getConstantType(arg, context);
            }
            else if (arg.type === 14 /* NodeTypes.JS_CALL_EXPRESSION */) {
                // in the case of nested helper call, e.g. `normalizeProps(guardReactiveProps(exp))`
                return getConstantTypeOfHelperCall(arg, context);
            }
        }
        return 0 /* ConstantTypes.NOT_CONSTANT */;
    }
    function getGeneratedPropsConstantType(node, context) {
        let returnType = 3 /* ConstantTypes.CAN_STRINGIFY */;
        const props = getNodeProps(node);
        if (props && props.type === 15 /* NodeTypes.JS_OBJECT_EXPRESSION */) {
            const { properties } = props;
            for (let i = 0; i < properties.length; i++) {
                const { key, value } = properties[i];
                const keyType = getConstantType(key, context);
                if (keyType === 0 /* ConstantTypes.NOT_CONSTANT */) {
                    return keyType;
                }
                if (keyType < returnType) {
                    returnType = keyType;
                }
                let valueType;
                if (value.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */) {
                    valueType = getConstantType(value, context);
                }
                else if (value.type === 14 /* NodeTypes.JS_CALL_EXPRESSION */) {
                    // some helper calls can be hoisted,
                    // such as the `normalizeProps` generated by the compiler for pre-normalize class,
                    // in this case we need to respect the ConstantType of the helper's arguments
                    valueType = getConstantTypeOfHelperCall(value, context);
                }
                else {
                    valueType = 0 /* ConstantTypes.NOT_CONSTANT */;
                }
                if (valueType === 0 /* ConstantTypes.NOT_CONSTANT */) {
                    return valueType;
                }
                if (valueType < returnType) {
                    returnType = valueType;
                }
            }
        }
        return returnType;
    }
    function getNodeProps(node) {
        const codegenNode = node.codegenNode;
        if (codegenNode.type === 13 /* NodeTypes.VNODE_CALL */) {
            return codegenNode.props;
        }
    }
    function getPatchFlag(node) {
        const flag = node.patchFlag;
        return flag ? parseInt(flag, 10) : undefined;
    }
  
    function createTransformContext(root, { filename = '', prefixIdentifiers = false, hoistStatic = false, cacheHandlers = false, nodeTransforms = [], directiveTransforms = {}, transformHoist = null, isBuiltInComponent = NOOP, isCustomElement = NOOP, expressionPlugins = [], scopeId = null, slotted = true, ssr = false, inSSR = false, ssrCssVars = ``, bindingMetadata = EMPTY_OBJ, inline = false, isTS = false, onError = defaultOnError, onWarn = defaultOnWarn, compatConfig }) {
        const nameMatch = filename.replace(/\?.*$/, '').match(/([^/\\]+)\.\w+$/);
        const context = {
            // options
            selfName: nameMatch && capitalize(camelize(nameMatch[1])),
            prefixIdentifiers,
            hoistStatic,
            cacheHandlers,
            nodeTransforms,
            directiveTransforms,
            transformHoist,
            isBuiltInComponent,
            isCustomElement,
            expressionPlugins,
            scopeId,
            slotted,
            ssr,
            inSSR,
            ssrCssVars,
            bindingMetadata,
            inline,
            isTS,
            onError,
            onWarn,
            compatConfig,
            // state
            root,
            helpers: new Map(),
            components: new Set(),
            directives: new Set(),
            hoists: [],
            imports: [],
            constantCache: new Map(),
            temps: 0,
            cached: 0,
            identifiers: Object.create(null),
            scopes: {
                vFor: 0,
                vSlot: 0,
                vPre: 0,
                vOnce: 0
            },
            parent: null,
            currentNode: root,
            childIndex: 0,
            inVOnce: false,
            // methods
            helper(name) {
                const count = context.helpers.get(name) || 0;
                context.helpers.set(name, count + 1);
                return name;
            },
            removeHelper(name) {
                const count = context.helpers.get(name);
                if (count) {
                    const currentCount = count - 1;
                    if (!currentCount) {
                        context.helpers.delete(name);
                    }
                    else {
                        context.helpers.set(name, currentCount);
                    }
                }
            },
            helperString(name) {
                return `_${helperNameMap[context.helper(name)]}`;
            },
            replaceNode(node) {
                /* istanbul ignore if */
                {
                    if (!context.currentNode) {
                        throw new Error(`Node being replaced is already removed.`);
                    }
                    if (!context.parent) {
                        throw new Error(`Cannot replace root node.`);
                    }
                }
                context.parent.children[context.childIndex] = context.currentNode = node;
            },
            removeNode(node) {
                if (!context.parent) {
                    throw new Error(`Cannot remove root node.`);
                }
                const list = context.parent.children;
                const removalIndex = node
                    ? list.indexOf(node)
                    : context.currentNode
                        ? context.childIndex
                        : -1;
                /* istanbul ignore if */
                if (removalIndex < 0) {
                    throw new Error(`node being removed is not a child of current parent`);
                }
                if (!node || node === context.currentNode) {
                    // current node removed
                    context.currentNode = null;
                    context.onNodeRemoved();
                }
                else {
                    // sibling node removed
                    if (context.childIndex > removalIndex) {
                        context.childIndex--;
                        context.onNodeRemoved();
                    }
                }
                context.parent.children.splice(removalIndex, 1);
            },
            onNodeRemoved: () => { },
            addIdentifiers(exp) {
            },
            removeIdentifiers(exp) {
            },
            hoist(exp) {
                if (isString(exp))
                    exp = createSimpleExpression(exp);
                context.hoists.push(exp);
                const identifier = createSimpleExpression(`_hoisted_${context.hoists.length}`, false, exp.loc, 2 /* ConstantTypes.CAN_HOIST */);
                identifier.hoisted = exp;
                return identifier;
            },
            cache(exp, isVNode = false) {
                return createCacheExpression(context.cached++, exp, isVNode);
            }
        };
        return context;
    }
    function transform(root, options) {
        const context = createTransformContext(root, options);
        traverseNode(root, context);
        if (options.hoistStatic) {
            hoistStatic(root, context);
        }
        if (!options.ssr) {
            createRootCodegen(root, context);
        }
        // finalize meta information
        root.helpers = new Set([...context.helpers.keys()]);
        root.components = [...context.components];
        root.directives = [...context.directives];
        root.imports = context.imports;
        root.hoists = context.hoists;
        root.temps = context.temps;
        root.cached = context.cached;
    }
    function createRootCodegen(root, context) {
        const { helper } = context;
        const { children } = root;
        if (children.length === 1) {
            const child = children[0];
            // if the single child is an element, turn it into a block.
            if (isSingleElementRoot(root, child) && child.codegenNode) {
                // single element root is never hoisted so codegenNode will never be
                // SimpleExpressionNode
                const codegenNode = child.codegenNode;
                if (codegenNode.type === 13 /* NodeTypes.VNODE_CALL */) {
                    makeBlock(codegenNode, context);
                }
                root.codegenNode = codegenNode;
            }
            else {
                // - single <slot/>, IfNode, ForNode: already blocks.
                // - single text node: always patched.
                // root codegen falls through via genNode()
                root.codegenNode = child;
            }
        }
        else if (children.length > 1) {
            // root has multiple nodes - return a fragment block.
            let patchFlag = 64 /* PatchFlags.STABLE_FRAGMENT */;
            let patchFlagText = PatchFlagNames[64 /* PatchFlags.STABLE_FRAGMENT */];
            // check if the fragment actually contains a single valid child with
            // the rest being comments
            if (children.filter(c => c.type !== 3 /* NodeTypes.COMMENT */).length === 1) {
                patchFlag |= 2048 /* PatchFlags.DEV_ROOT_FRAGMENT */;
                patchFlagText += `, ${PatchFlagNames[2048 /* PatchFlags.DEV_ROOT_FRAGMENT */]}`;
            }
            root.codegenNode = createVNodeCall(context, helper(FRAGMENT), undefined, root.children, patchFlag + (` /* ${patchFlagText} */` ), undefined, undefined, true, undefined, false /* isComponent */);
        }
        else ;
    }
    function traverseChildren(parent, context) {
        let i = 0;
        const nodeRemoved = () => {
            i--;
        };
        for (; i < parent.children.length; i++) {
            const child = parent.children[i];
            if (isString(child))
                continue;
            context.parent = parent;
            context.childIndex = i;
            context.onNodeRemoved = nodeRemoved;
            traverseNode(child, context);
        }
    }
    function traverseNode(node, context) {
        context.currentNode = node;
        // apply transform plugins
        const { nodeTransforms } = context;
        const exitFns = [];
        for (let i = 0; i < nodeTransforms.length; i++) {
            const onExit = nodeTransforms[i](node, context);
            if (onExit) {
                if (isArray(onExit)) {
                    exitFns.push(...onExit);
                }
                else {
                    exitFns.push(onExit);
                }
            }
            if (!context.currentNode) {
                // node was removed
                return;
            }
            else {
                // node may have been replaced
                node = context.currentNode;
            }
        }
        switch (node.type) {
            case 3 /* NodeTypes.COMMENT */:
                if (!context.ssr) {
                    // inject import for the Comment symbol, which is needed for creating
                    // comment nodes with `createVNode`
                    context.helper(CREATE_COMMENT);
                }
                break;
            case 5 /* NodeTypes.INTERPOLATION */:
                // no need to traverse, but we need to inject toString helper
                if (!context.ssr) {
                    context.helper(TO_DISPLAY_STRING);
                }
                break;
            // for container types, further traverse downwards
            case 9 /* NodeTypes.IF */:
                for (let i = 0; i < node.branches.length; i++) {
                    traverseNode(node.branches[i], context);
                }
                break;
            case 10 /* NodeTypes.IF_BRANCH */:
            case 11 /* NodeTypes.FOR */:
            case 1 /* NodeTypes.ELEMENT */:
            case 0 /* NodeTypes.ROOT */:
                traverseChildren(node, context);
                break;
        }
        // exit transforms
        context.currentNode = node;
        let i = exitFns.length;
        while (i--) {
            exitFns[i]();
        }
    }
    function createStructuralDirectiveTransform(name, fn) {
        const matches = isString(name)
            ? (n) => n === name
            : (n) => name.test(n);
        return (node, context) => {
            if (node.type === 1 /* NodeTypes.ELEMENT */) {
                const { props } = node;
                // structural directive transforms are not concerned with slots
                // as they are handled separately in vSlot.ts
                if (node.tagType === 3 /* ElementTypes.TEMPLATE */ && props.some(isVSlot)) {
                    return;
                }
                const exitFns = [];
                for (let i = 0; i < props.length; i++) {
                    const prop = props[i];
                    if (prop.type === 7 /* NodeTypes.DIRECTIVE */ && matches(prop.name)) {
                        // structural directives are removed to avoid infinite recursion
                        // also we remove them *before* applying so that it can further
                        // traverse itself in case it moves the node around
                        props.splice(i, 1);
                        i--;
                        const onExit = fn(node, prop, context);
                        if (onExit)
                            exitFns.push(onExit);
                    }
                }
                return exitFns;
            }
        };
    }
  
    const PURE_ANNOTATION = `/*#__PURE__*/`;
    const aliasHelper = (s) => `${helperNameMap[s]}: _${helperNameMap[s]}`;
    function createCodegenContext(ast, { mode = 'function', prefixIdentifiers = mode === 'module', sourceMap = false, filename = `template.vue.html`, scopeId = null, optimizeImports = false, runtimeGlobalName = `Vue`, runtimeModuleName = `vue`, ssrRuntimeModuleName = 'vue/server-renderer', ssr = false, isTS = false, inSSR = false }) {
        const context = {
            mode,
            prefixIdentifiers,
            sourceMap,
            filename,
            scopeId,
            optimizeImports,
            runtimeGlobalName,
            runtimeModuleName,
            ssrRuntimeModuleName,
            ssr,
            isTS,
            inSSR,
            source: ast.loc.source,
            code: ``,
            column: 1,
            line: 1,
            offset: 0,
            indentLevel: 0,
            pure: false,
            map: undefined,
            helper(key) {
                return `_${helperNameMap[key]}`;
            },
            push(code, node) {
                context.code += code;
            },
            indent() {
                newline(++context.indentLevel);
            },
            deindent(withoutNewLine = false) {
                if (withoutNewLine) {
                    --context.indentLevel;
                }
                else {
                    newline(--context.indentLevel);
                }
            },
            newline() {
                newline(context.indentLevel);
            }
        };
        function newline(n) {
            context.push('\n' + `  `.repeat(n));
        }
        return context;
    }
    function generate(ast, options = {}) {
        const context = createCodegenContext(ast, options);
        if (options.onContextCreated)
            options.onContextCreated(context);
        const { mode, push, prefixIdentifiers, indent, deindent, newline, scopeId, ssr } = context;
        const helpers = Array.from(ast.helpers);
        const hasHelpers = helpers.length > 0;
        const useWithBlock = !prefixIdentifiers && mode !== 'module';
        const isSetupInlined = !true ;
        // preambles
        // in setup() inline mode, the preamble is generated in a sub context
        // and returned separately.
        const preambleContext = isSetupInlined
            ? createCodegenContext(ast, options)
            : context;
        {
            genFunctionPreamble(ast, preambleContext);
        }
        // enter render function
        const functionName = ssr ? `ssrRender` : `render`;
        const args = ssr ? ['_ctx', '_push', '_parent', '_attrs'] : ['_ctx', '_cache'];
        const signature = args.join(', ');
        {
            push(`function ${functionName}(${signature}) {`);
        }
        indent();
        if (useWithBlock) {
            push(`with (_ctx) {`);
            indent();
            // function mode const declarations should be inside with block
            // also they should be renamed to avoid collision with user properties
            if (hasHelpers) {
                push(`const { ${helpers.map(aliasHelper).join(', ')} } = _Vue`);
                push(`\n`);
                newline();
            }
        }
        // generate asset resolution statements
        if (ast.components.length) {
            genAssets(ast.components, 'component', context);
            if (ast.directives.length || ast.temps > 0) {
                newline();
            }
        }
        if (ast.directives.length) {
            genAssets(ast.directives, 'directive', context);
            if (ast.temps > 0) {
                newline();
            }
        }
        if (ast.temps > 0) {
            push(`let `);
            for (let i = 0; i < ast.temps; i++) {
                push(`${i > 0 ? `, ` : ``}_temp${i}`);
            }
        }
        if (ast.components.length || ast.directives.length || ast.temps) {
            push(`\n`);
            newline();
        }
        // generate the VNode tree expression
        if (!ssr) {
            push(`return `);
        }
        if (ast.codegenNode) {
            genNode(ast.codegenNode, context);
        }
        else {
            push(`null`);
        }
        if (useWithBlock) {
            deindent();
            push(`}`);
        }
        deindent();
        push(`}`);
        return {
            ast,
            code: context.code,
            preamble: isSetupInlined ? preambleContext.code : ``,
            // SourceMapGenerator does have toJSON() method but it's not in the types
            map: context.map ? context.map.toJSON() : undefined
        };
    }
    function genFunctionPreamble(ast, context) {
        const { ssr, prefixIdentifiers, push, newline, runtimeModuleName, runtimeGlobalName, ssrRuntimeModuleName } = context;
        const VueBinding = runtimeGlobalName;
        // Generate const declaration for helpers
        // In prefix mode, we place the const declaration at top so it's done
        // only once; But if we not prefixing, we place the declaration inside the
        // with block so it doesn't incur the `in` check cost for every helper access.
        const helpers = Array.from(ast.helpers);
        if (helpers.length > 0) {
            {
                // "with" mode.
                // save Vue in a separate variable to avoid collision
                push(`const _Vue = ${VueBinding}\n`);
                // in "with" mode, helpers are declared inside the with block to avoid
                // has check cost, but hoists are lifted out of the function - we need
                // to provide the helper here.
                if (ast.hoists.length) {
                    const staticHelpers = [
                        CREATE_VNODE,
                        CREATE_ELEMENT_VNODE,
                        CREATE_COMMENT,
                        CREATE_TEXT,
                        CREATE_STATIC
                    ]
                        .filter(helper => helpers.includes(helper))
                        .map(aliasHelper)
                        .join(', ');
                    push(`const { ${staticHelpers} } = _Vue\n`);
                }
            }
        }
        genHoists(ast.hoists, context);
        newline();
        push(`return `);
    }
    function genAssets(assets, type, { helper, push, newline, isTS }) {
        const resolver = helper(type === 'component'
                ? RESOLVE_COMPONENT
                : RESOLVE_DIRECTIVE);
        for (let i = 0; i < assets.length; i++) {
            let id = assets[i];
            // potential component implicit self-reference inferred from SFC filename
            const maybeSelfReference = id.endsWith('__self');
            if (maybeSelfReference) {
                id = id.slice(0, -6);
            }
            push(`const ${toValidAssetId(id, type)} = ${resolver}(${JSON.stringify(id)}${maybeSelfReference ? `, true` : ``})${isTS ? `!` : ``}`);
            if (i < assets.length - 1) {
                newline();
            }
        }
    }
    function genHoists(hoists, context) {
        if (!hoists.length) {
            return;
        }
        context.pure = true;
        const { push, newline, helper, scopeId, mode } = context;
        newline();
        for (let i = 0; i < hoists.length; i++) {
            const exp = hoists[i];
            if (exp) {
                push(`const _hoisted_${i + 1} = ${``}`);
                genNode(exp, context);
                newline();
            }
        }
        context.pure = false;
    }
    function isText(n) {
        return (isString(n) ||
            n.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ ||
            n.type === 2 /* NodeTypes.TEXT */ ||
            n.type === 5 /* NodeTypes.INTERPOLATION */ ||
            n.type === 8 /* NodeTypes.COMPOUND_EXPRESSION */);
    }
    function genNodeListAsArray(nodes, context) {
        const multilines = nodes.length > 3 ||
            (nodes.some(n => isArray(n) || !isText(n)));
        context.push(`[`);
        multilines && context.indent();
        genNodeList(nodes, context, multilines);
        multilines && context.deindent();
        context.push(`]`);
    }
    function genNodeList(nodes, context, multilines = false, comma = true) {
        const { push, newline } = context;
        for (let i = 0; i < nodes.length; i++) {
            const node = nodes[i];
            if (isString(node)) {
                push(node);
            }
            else if (isArray(node)) {
                genNodeListAsArray(node, context);
            }
            else {
                genNode(node, context);
            }
            if (i < nodes.length - 1) {
                if (multilines) {
                    comma && push(',');
                    newline();
                }
                else {
                    comma && push(', ');
                }
            }
        }
    }
    function genNode(node, context) {
        if (isString(node)) {
            context.push(node);
            return;
        }
        if (isSymbol(node)) {
            context.push(context.helper(node));
            return;
        }
        switch (node.type) {
            case 1 /* NodeTypes.ELEMENT */:
            case 9 /* NodeTypes.IF */:
            case 11 /* NodeTypes.FOR */:
                assert(node.codegenNode != null, `Codegen node is missing for element/if/for node. ` +
                        `Apply appropriate transforms first.`);
                genNode(node.codegenNode, context);
                break;
            case 2 /* NodeTypes.TEXT */:
                genText(node, context);
                break;
            case 4 /* NodeTypes.SIMPLE_EXPRESSION */:
                genExpression(node, context);
                break;
            case 5 /* NodeTypes.INTERPOLATION */:
                genInterpolation(node, context);
                break;
            case 12 /* NodeTypes.TEXT_CALL */:
                genNode(node.codegenNode, context);
                break;
            case 8 /* NodeTypes.COMPOUND_EXPRESSION */:
                genCompoundExpression(node, context);
                break;
            case 3 /* NodeTypes.COMMENT */:
                genComment(node, context);
                break;
            case 13 /* NodeTypes.VNODE_CALL */:
                genVNodeCall(node, context);
                break;
            case 14 /* NodeTypes.JS_CALL_EXPRESSION */:
                genCallExpression(node, context);
                break;
            case 15 /* NodeTypes.JS_OBJECT_EXPRESSION */:
                genObjectExpression(node, context);
                break;
            case 17 /* NodeTypes.JS_ARRAY_EXPRESSION */:
                genArrayExpression(node, context);
                break;
            case 18 /* NodeTypes.JS_FUNCTION_EXPRESSION */:
                genFunctionExpression(node, context);
                break;
            case 19 /* NodeTypes.JS_CONDITIONAL_EXPRESSION */:
                genConditionalExpression(node, context);
                break;
            case 20 /* NodeTypes.JS_CACHE_EXPRESSION */:
                genCacheExpression(node, context);
                break;
            case 21 /* NodeTypes.JS_BLOCK_STATEMENT */:
                genNodeList(node.body, context, true, false);
                break;
            // SSR only types
            case 22 /* NodeTypes.JS_TEMPLATE_LITERAL */:
                break;
            case 23 /* NodeTypes.JS_IF_STATEMENT */:
                break;
            case 24 /* NodeTypes.JS_ASSIGNMENT_EXPRESSION */:
                break;
            case 25 /* NodeTypes.JS_SEQUENCE_EXPRESSION */:
                break;
            case 26 /* NodeTypes.JS_RETURN_STATEMENT */:
                break;
            /* istanbul ignore next */
            case 10 /* NodeTypes.IF_BRANCH */:
                // noop
                break;
            default:
                {
                    assert(false, `unhandled codegen node type: ${node.type}`);
                    // make sure we exhaust all possible types
                    const exhaustiveCheck = node;
                    return exhaustiveCheck;
                }
        }
    }
    function genText(node, context) {
        context.push(JSON.stringify(node.content), node);
    }
    function genExpression(node, context) {
        const { content, isStatic } = node;
        context.push(isStatic ? JSON.stringify(content) : content, node);
    }
    function genInterpolation(node, context) {
        const { push, helper, pure } = context;
        if (pure)
            push(PURE_ANNOTATION);
        push(`${helper(TO_DISPLAY_STRING)}(`);
        genNode(node.content, context);
        push(`)`);
    }
    function genCompoundExpression(node, context) {
        for (let i = 0; i < node.children.length; i++) {
            const child = node.children[i];
            if (isString(child)) {
                context.push(child);
            }
            else {
                genNode(child, context);
            }
        }
    }
    function genExpressionAsPropertyKey(node, context) {
        const { push } = context;
        if (node.type === 8 /* NodeTypes.COMPOUND_EXPRESSION */) {
            push(`[`);
            genCompoundExpression(node, context);
            push(`]`);
        }
        else if (node.isStatic) {
            // only quote keys if necessary
            const text = isSimpleIdentifier(node.content)
                ? node.content
                : JSON.stringify(node.content);
            push(text, node);
        }
        else {
            push(`[${node.content}]`, node);
        }
    }
    function genComment(node, context) {
        const { push, helper, pure } = context;
        if (pure) {
            push(PURE_ANNOTATION);
        }
        push(`${helper(CREATE_COMMENT)}(${JSON.stringify(node.content)})`, node);
    }
    function genVNodeCall(node, context) {
        const { push, helper, pure } = context;
        const { tag, props, children, patchFlag, dynamicProps, directives, isBlock, disableTracking, isComponent } = node;
        if (directives) {
            push(helper(WITH_DIRECTIVES) + `(`);
        }
        if (isBlock) {
            push(`(${helper(OPEN_BLOCK)}(${disableTracking ? `true` : ``}), `);
        }
        if (pure) {
            push(PURE_ANNOTATION);
        }
        const callHelper = isBlock
            ? getVNodeBlockHelper(context.inSSR, isComponent)
            : getVNodeHelper(context.inSSR, isComponent);
        push(helper(callHelper) + `(`, node);
        genNodeList(genNullableArgs([tag, props, children, patchFlag, dynamicProps]), context);
        push(`)`);
        if (isBlock) {
            push(`)`);
        }
        if (directives) {
            push(`, `);
            genNode(directives, context);
            push(`)`);
        }
    }
    function genNullableArgs(args) {
        let i = args.length;
        while (i--) {
            if (args[i] != null)
                break;
        }
        return args.slice(0, i + 1).map(arg => arg || `null`);
    }
    // JavaScript
    function genCallExpression(node, context) {
        const { push, helper, pure } = context;
        const callee = isString(node.callee) ? node.callee : helper(node.callee);
        if (pure) {
            push(PURE_ANNOTATION);
        }
        push(callee + `(`, node);
        genNodeList(node.arguments, context);
        push(`)`);
    }
    function genObjectExpression(node, context) {
        const { push, indent, deindent, newline } = context;
        const { properties } = node;
        if (!properties.length) {
            push(`{}`, node);
            return;
        }
        const multilines = properties.length > 1 ||
            (properties.some(p => p.value.type !== 4 /* NodeTypes.SIMPLE_EXPRESSION */));
        push(multilines ? `{` : `{ `);
        multilines && indent();
        for (let i = 0; i < properties.length; i++) {
            const { key, value } = properties[i];
            // key
            genExpressionAsPropertyKey(key, context);
            push(`: `);
            // value
            genNode(value, context);
            if (i < properties.length - 1) {
                // will only reach this if it's multilines
                push(`,`);
                newline();
            }
        }
        multilines && deindent();
        push(multilines ? `}` : ` }`);
    }
    function genArrayExpression(node, context) {
        genNodeListAsArray(node.elements, context);
    }
    function genFunctionExpression(node, context) {
        const { push, indent, deindent } = context;
        const { params, returns, body, newline, isSlot } = node;
        if (isSlot) {
            // wrap slot functions with owner context
            push(`_${helperNameMap[WITH_CTX]}(`);
        }
        push(`(`, node);
        if (isArray(params)) {
            genNodeList(params, context);
        }
        else if (params) {
            genNode(params, context);
        }
        push(`) => `);
        if (newline || body) {
            push(`{`);
            indent();
        }
        if (returns) {
            if (newline) {
                push(`return `);
            }
            if (isArray(returns)) {
                genNodeListAsArray(returns, context);
            }
            else {
                genNode(returns, context);
            }
        }
        else if (body) {
            genNode(body, context);
        }
        if (newline || body) {
            deindent();
            push(`}`);
        }
        if (isSlot) {
            push(`)`);
        }
    }
    function genConditionalExpression(node, context) {
        const { test, consequent, alternate, newline: needNewline } = node;
        const { push, indent, deindent, newline } = context;
        if (test.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */) {
            const needsParens = !isSimpleIdentifier(test.content);
            needsParens && push(`(`);
            genExpression(test, context);
            needsParens && push(`)`);
        }
        else {
            push(`(`);
            genNode(test, context);
            push(`)`);
        }
        needNewline && indent();
        context.indentLevel++;
        needNewline || push(` `);
        push(`? `);
        genNode(consequent, context);
        context.indentLevel--;
        needNewline && newline();
        needNewline || push(` `);
        push(`: `);
        const isNested = alternate.type === 19 /* NodeTypes.JS_CONDITIONAL_EXPRESSION */;
        if (!isNested) {
            context.indentLevel++;
        }
        genNode(alternate, context);
        if (!isNested) {
            context.indentLevel--;
        }
        needNewline && deindent(true /* without newline */);
    }
    function genCacheExpression(node, context) {
        const { push, helper, indent, deindent, newline } = context;
        push(`_cache[${node.index}] || (`);
        if (node.isVNode) {
            indent();
            push(`${helper(SET_BLOCK_TRACKING)}(-1),`);
            newline();
        }
        push(`_cache[${node.index}] = `);
        genNode(node.value, context);
        if (node.isVNode) {
            push(`,`);
            newline();
            push(`${helper(SET_BLOCK_TRACKING)}(1),`);
            newline();
            push(`_cache[${node.index}]`);
            deindent();
        }
        push(`)`);
    }
  
    // these keywords should not appear inside expressions, but operators like
    // 'typeof', 'instanceof', and 'in' are allowed
    const prohibitedKeywordRE = new RegExp('\\b' +
        ('arguments,await,break,case,catch,class,const,continue,debugger,default,' +
            'delete,do,else,export,extends,finally,for,function,if,import,let,new,' +
            'return,super,switch,throw,try,var,void,while,with,yield')
            .split(',')
            .join('\\b|\\b') +
        '\\b');
    // strip strings in expressions
    const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
    /**
     * Validate a non-prefixed expression.
     * This is only called when using the in-browser runtime compiler since it
     * doesn't prefix expressions.
     */
    function validateBrowserExpression(node, context, asParams = false, asRawStatements = false) {
        const exp = node.content;
        // empty expressions are validated per-directive since some directives
        // do allow empty expressions.
        if (!exp.trim()) {
            return;
        }
        try {
            new Function(asRawStatements
                ? ` ${exp} `
                : `return ${asParams ? `(${exp}) => {}` : `(${exp})`}`);
        }
        catch (e) {
            let message = e.message;
            const keywordMatch = exp
                .replace(stripStringRE, '')
                .match(prohibitedKeywordRE);
            if (keywordMatch) {
                message = `avoid using JavaScript keyword as property name: "${keywordMatch[0]}"`;
            }
            context.onError(createCompilerError(45 /* ErrorCodes.X_INVALID_EXPRESSION */, node.loc, undefined, message));
        }
    }
  
    const transformExpression = (node, context) => {
        if (node.type === 5 /* NodeTypes.INTERPOLATION */) {
            node.content = processExpression(node.content, context);
        }
        else if (node.type === 1 /* NodeTypes.ELEMENT */) {
            // handle directives on element
            for (let i = 0; i < node.props.length; i++) {
                const dir = node.props[i];
                // do not process for v-on & v-for since they are special handled
                if (dir.type === 7 /* NodeTypes.DIRECTIVE */ && dir.name !== 'for') {
                    const exp = dir.exp;
                    const arg = dir.arg;
                    // do not process exp if this is v-on:arg - we need special handling
                    // for wrapping inline statements.
                    if (exp &&
                        exp.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ &&
                        !(dir.name === 'on' && arg)) {
                        dir.exp = processExpression(exp, context, 
                        // slot args must be processed as function params
                        dir.name === 'slot');
                    }
                    if (arg && arg.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ && !arg.isStatic) {
                        dir.arg = processExpression(arg, context);
                    }
                }
            }
        }
    };
    // Important: since this function uses Node.js only dependencies, it should
    // always be used with a leading !true check so that it can be
    // tree-shaken from the browser build.
    function processExpression(node, context, 
    // some expressions like v-slot props & v-for aliases should be parsed as
    // function params
    asParams = false, 
    // v-on handler values may contain multiple statements
    asRawStatements = false, localVars = Object.create(context.identifiers)) {
        {
            {
                // simple in-browser validation (same logic in 2.x)
                validateBrowserExpression(node, context, asParams, asRawStatements);
            }
            return node;
        }
    }
  
    const transformIf = createStructuralDirectiveTransform(/^(if|else|else-if)$/, (node, dir, context) => {
        return processIf(node, dir, context, (ifNode, branch, isRoot) => {
            // #1587: We need to dynamically increment the key based on the current
            // node's sibling nodes, since chained v-if/else branches are
            // rendered at the same depth
            const siblings = context.parent.children;
            let i = siblings.indexOf(ifNode);
            let key = 0;
            while (i-- >= 0) {
                const sibling = siblings[i];
                if (sibling && sibling.type === 9 /* NodeTypes.IF */) {
                    key += sibling.branches.length;
                }
            }
            // Exit callback. Complete the codegenNode when all children have been
            // transformed.
            return () => {
                if (isRoot) {
                    ifNode.codegenNode = createCodegenNodeForBranch(branch, key, context);
                }
                else {
                    // attach this branch's codegen node to the v-if root.
                    const parentCondition = getParentCondition(ifNode.codegenNode);
                    parentCondition.alternate = createCodegenNodeForBranch(branch, key + ifNode.branches.length - 1, context);
                }
            };
        });
    });
    // target-agnostic transform used for both Client and SSR
    function processIf(node, dir, context, processCodegen) {
        if (dir.name !== 'else' &&
            (!dir.exp || !dir.exp.content.trim())) {
            const loc = dir.exp ? dir.exp.loc : node.loc;
            context.onError(createCompilerError(28 /* ErrorCodes.X_V_IF_NO_EXPRESSION */, dir.loc));
            dir.exp = createSimpleExpression(`true`, false, loc);
        }
        if (dir.exp) {
            validateBrowserExpression(dir.exp, context);
        }
        if (dir.name === 'if') {
            const branch = createIfBranch(node, dir);
            const ifNode = {
                type: 9 /* NodeTypes.IF */,
                loc: node.loc,
                branches: [branch]
            };
            context.replaceNode(ifNode);
            if (processCodegen) {
                return processCodegen(ifNode, branch, true);
            }
        }
        else {
            // locate the adjacent v-if
            const siblings = context.parent.children;
            const comments = [];
            let i = siblings.indexOf(node);
            while (i-- >= -1) {
                const sibling = siblings[i];
                if (sibling && sibling.type === 3 /* NodeTypes.COMMENT */) {
                    context.removeNode(sibling);
                    comments.unshift(sibling);
                    continue;
                }
                if (sibling &&
                    sibling.type === 2 /* NodeTypes.TEXT */ &&
                    !sibling.content.trim().length) {
                    context.removeNode(sibling);
                    continue;
                }
                if (sibling && sibling.type === 9 /* NodeTypes.IF */) {
                    // Check if v-else was followed by v-else-if
                    if (dir.name === 'else-if' &&
                        sibling.branches[sibling.branches.length - 1].condition === undefined) {
                        context.onError(createCompilerError(30 /* ErrorCodes.X_V_ELSE_NO_ADJACENT_IF */, node.loc));
                    }
                    // move the node to the if node's branches
                    context.removeNode();
                    const branch = createIfBranch(node, dir);
                    if (comments.length &&
                        // #3619 ignore comments if the v-if is direct child of <transition>
                        !(context.parent &&
                            context.parent.type === 1 /* NodeTypes.ELEMENT */ &&
                            isBuiltInType(context.parent.tag, 'transition'))) {
                        branch.children = [...comments, ...branch.children];
                    }
                    // check if user is forcing same key on different branches
                    {
                        const key = branch.userKey;
                        if (key) {
                            sibling.branches.forEach(({ userKey }) => {
                                if (isSameKey(userKey, key)) {
                                    context.onError(createCompilerError(29 /* ErrorCodes.X_V_IF_SAME_KEY */, branch.userKey.loc));
                                }
                            });
                        }
                    }
                    sibling.branches.push(branch);
                    const onExit = processCodegen && processCodegen(sibling, branch, false);
                    // since the branch was removed, it will not be traversed.
                    // make sure to traverse here.
                    traverseNode(branch, context);
                    // call on exit
                    if (onExit)
                        onExit();
                    // make sure to reset currentNode after traversal to indicate this
                    // node has been removed.
                    context.currentNode = null;
                }
                else {
                    context.onError(createCompilerError(30 /* ErrorCodes.X_V_ELSE_NO_ADJACENT_IF */, node.loc));
                }
                break;
            }
        }
    }
    function createIfBranch(node, dir) {
        const isTemplateIf = node.tagType === 3 /* ElementTypes.TEMPLATE */;
        return {
            type: 10 /* NodeTypes.IF_BRANCH */,
            loc: node.loc,
            condition: dir.name === 'else' ? undefined : dir.exp,
            children: isTemplateIf && !findDir(node, 'for') ? node.children : [node],
            userKey: findProp(node, `key`),
            isTemplateIf
        };
    }
    function createCodegenNodeForBranch(branch, keyIndex, context) {
        if (branch.condition) {
            return createConditionalExpression(branch.condition, createChildrenCodegenNode(branch, keyIndex, context), 
            // make sure to pass in asBlock: true so that the comment node call
            // closes the current block.
            createCallExpression(context.helper(CREATE_COMMENT), [
                '"v-if"' ,
                'true'
            ]));
        }
        else {
            return createChildrenCodegenNode(branch, keyIndex, context);
        }
    }
    function createChildrenCodegenNode(branch, keyIndex, context) {
        const { helper } = context;
        const keyProperty = createObjectProperty(`key`, createSimpleExpression(`${keyIndex}`, false, locStub, 2 /* ConstantTypes.CAN_HOIST */));
        const { children } = branch;
        const firstChild = children[0];
        const needFragmentWrapper = children.length !== 1 || firstChild.type !== 1 /* NodeTypes.ELEMENT */;
        if (needFragmentWrapper) {
            if (children.length === 1 && firstChild.type === 11 /* NodeTypes.FOR */) {
                // optimize away nested fragments when child is a ForNode
                const vnodeCall = firstChild.codegenNode;
                injectProp(vnodeCall, keyProperty, context);
                return vnodeCall;
            }
            else {
                let patchFlag = 64 /* PatchFlags.STABLE_FRAGMENT */;
                let patchFlagText = PatchFlagNames[64 /* PatchFlags.STABLE_FRAGMENT */];
                // check if the fragment actually contains a single valid child with
                // the rest being comments
                if (!branch.isTemplateIf &&
                    children.filter(c => c.type !== 3 /* NodeTypes.COMMENT */).length === 1) {
                    patchFlag |= 2048 /* PatchFlags.DEV_ROOT_FRAGMENT */;
                    patchFlagText += `, ${PatchFlagNames[2048 /* PatchFlags.DEV_ROOT_FRAGMENT */]}`;
                }
                return createVNodeCall(context, helper(FRAGMENT), createObjectExpression([keyProperty]), children, patchFlag + (` /* ${patchFlagText} */` ), undefined, undefined, true, false, false /* isComponent */, branch.loc);
            }
        }
        else {
            const ret = firstChild.codegenNode;
            const vnodeCall = getMemoedVNodeCall(ret);
            // Change createVNode to createBlock.
            if (vnodeCall.type === 13 /* NodeTypes.VNODE_CALL */) {
                makeBlock(vnodeCall, context);
            }
            // inject branch key
            injectProp(vnodeCall, keyProperty, context);
            return ret;
        }
    }
    function isSameKey(a, b) {
        if (!a || a.type !== b.type) {
            return false;
        }
        if (a.type === 6 /* NodeTypes.ATTRIBUTE */) {
            if (a.value.content !== b.value.content) {
                return false;
            }
        }
        else {
            // directive
            const exp = a.exp;
            const branchExp = b.exp;
            if (exp.type !== branchExp.type) {
                return false;
            }
            if (exp.type !== 4 /* NodeTypes.SIMPLE_EXPRESSION */ ||
                exp.isStatic !== branchExp.isStatic ||
                exp.content !== branchExp.content) {
                return false;
            }
        }
        return true;
    }
    function getParentCondition(node) {
        while (true) {
            if (node.type === 19 /* NodeTypes.JS_CONDITIONAL_EXPRESSION */) {
                if (node.alternate.type === 19 /* NodeTypes.JS_CONDITIONAL_EXPRESSION */) {
                    node = node.alternate;
                }
                else {
                    return node;
                }
            }
            else if (node.type === 20 /* NodeTypes.JS_CACHE_EXPRESSION */) {
                node = node.value;
            }
        }
    }
  
    const transformFor = createStructuralDirectiveTransform('for', (node, dir, context) => {
        const { helper, removeHelper } = context;
        return processFor(node, dir, context, forNode => {
            // create the loop render function expression now, and add the
            // iterator on exit after all children have been traversed
            const renderExp = createCallExpression(helper(RENDER_LIST), [
                forNode.source
            ]);
            const isTemplate = isTemplateNode(node);
            const memo = findDir(node, 'memo');
            const keyProp = findProp(node, `key`);
            const keyExp = keyProp &&
                (keyProp.type === 6 /* NodeTypes.ATTRIBUTE */
                    ? createSimpleExpression(keyProp.value.content, true)
                    : keyProp.exp);
            const keyProperty = keyProp ? createObjectProperty(`key`, keyExp) : null;
            const isStableFragment = forNode.source.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ &&
                forNode.source.constType > 0 /* ConstantTypes.NOT_CONSTANT */;
            const fragmentFlag = isStableFragment
                ? 64 /* PatchFlags.STABLE_FRAGMENT */
                : keyProp
                    ? 128 /* PatchFlags.KEYED_FRAGMENT */
                    : 256 /* PatchFlags.UNKEYED_FRAGMENT */;
            forNode.codegenNode = createVNodeCall(context, helper(FRAGMENT), undefined, renderExp, fragmentFlag +
                (` /* ${PatchFlagNames[fragmentFlag]} */` ), undefined, undefined, true /* isBlock */, !isStableFragment /* disableTracking */, false /* isComponent */, node.loc);
            return () => {
                // finish the codegen now that all children have been traversed
                let childBlock;
                const { children } = forNode;
                // check <template v-for> key placement
                if (isTemplate) {
                    node.children.some(c => {
                        if (c.type === 1 /* NodeTypes.ELEMENT */) {
                            const key = findProp(c, 'key');
                            if (key) {
                                context.onError(createCompilerError(33 /* ErrorCodes.X_V_FOR_TEMPLATE_KEY_PLACEMENT */, key.loc));
                                return true;
                            }
                        }
                    });
                }
                const needFragmentWrapper = children.length !== 1 || children[0].type !== 1 /* NodeTypes.ELEMENT */;
                const slotOutlet = isSlotOutlet(node)
                    ? node
                    : isTemplate &&
                        node.children.length === 1 &&
                        isSlotOutlet(node.children[0])
                        ? node.children[0] // api-extractor somehow fails to infer this
                        : null;
                if (slotOutlet) {
                    // <slot v-for="..."> or <template v-for="..."><slot/></template>
                    childBlock = slotOutlet.codegenNode;
                    if (isTemplate && keyProperty) {
                        // <template v-for="..." :key="..."><slot/></template>
                        // we need to inject the key to the renderSlot() call.
                        // the props for renderSlot is passed as the 3rd argument.
                        injectProp(childBlock, keyProperty, context);
                    }
                }
                else if (needFragmentWrapper) {
                    // <template v-for="..."> with text or multi-elements
                    // should generate a fragment block for each loop
                    childBlock = createVNodeCall(context, helper(FRAGMENT), keyProperty ? createObjectExpression([keyProperty]) : undefined, node.children, 64 /* PatchFlags.STABLE_FRAGMENT */ +
                        (` /* ${PatchFlagNames[64 /* PatchFlags.STABLE_FRAGMENT */]} */`
                            ), undefined, undefined, true, undefined, false /* isComponent */);
                }
                else {
                    // Normal element v-for. Directly use the child's codegenNode
                    // but mark it as a block.
                    childBlock = children[0]
                        .codegenNode;
                    if (isTemplate && keyProperty) {
                        injectProp(childBlock, keyProperty, context);
                    }
                    if (childBlock.isBlock !== !isStableFragment) {
                        if (childBlock.isBlock) {
                            // switch from block to vnode
                            removeHelper(OPEN_BLOCK);
                            removeHelper(getVNodeBlockHelper(context.inSSR, childBlock.isComponent));
                        }
                        else {
                            // switch from vnode to block
                            removeHelper(getVNodeHelper(context.inSSR, childBlock.isComponent));
                        }
                    }
                    childBlock.isBlock = !isStableFragment;
                    if (childBlock.isBlock) {
                        helper(OPEN_BLOCK);
                        helper(getVNodeBlockHelper(context.inSSR, childBlock.isComponent));
                    }
                    else {
                        helper(getVNodeHelper(context.inSSR, childBlock.isComponent));
                    }
                }
                if (memo) {
                    const loop = createFunctionExpression(createForLoopParams(forNode.parseResult, [
                        createSimpleExpression(`_cached`)
                    ]));
                    loop.body = createBlockStatement([
                        createCompoundExpression([`const _memo = (`, memo.exp, `)`]),
                        createCompoundExpression([
                            `if (_cached`,
                            ...(keyExp ? [` && _cached.key === `, keyExp] : []),
                            ` && ${context.helperString(IS_MEMO_SAME)}(_cached, _memo)) return _cached`
                        ]),
                        createCompoundExpression([`const _item = `, childBlock]),
                        createSimpleExpression(`_item.memo = _memo`),
                        createSimpleExpression(`return _item`)
                    ]);
                    renderExp.arguments.push(loop, createSimpleExpression(`_cache`), createSimpleExpression(String(context.cached++)));
                }
                else {
                    renderExp.arguments.push(createFunctionExpression(createForLoopParams(forNode.parseResult), childBlock, true /* force newline */));
                }
            };
        });
    });
    // target-agnostic transform used for both Client and SSR
    function processFor(node, dir, context, processCodegen) {
        if (!dir.exp) {
            context.onError(createCompilerError(31 /* ErrorCodes.X_V_FOR_NO_EXPRESSION */, dir.loc));
            return;
        }
        const parseResult = parseForExpression(
        // can only be simple expression because vFor transform is applied
        // before expression transform.
        dir.exp, context);
        if (!parseResult) {
            context.onError(createCompilerError(32 /* ErrorCodes.X_V_FOR_MALFORMED_EXPRESSION */, dir.loc));
            return;
        }
        const { addIdentifiers, removeIdentifiers, scopes } = context;
        const { source, value, key, index } = parseResult;
        const forNode = {
            type: 11 /* NodeTypes.FOR */,
            loc: dir.loc,
            source,
            valueAlias: value,
            keyAlias: key,
            objectIndexAlias: index,
            parseResult,
            children: isTemplateNode(node) ? node.children : [node]
        };
        context.replaceNode(forNode);
        // bookkeeping
        scopes.vFor++;
        const onExit = processCodegen && processCodegen(forNode);
        return () => {
            scopes.vFor--;
            if (onExit)
                onExit();
        };
    }
    const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
    // This regex doesn't cover the case if key or index aliases have destructuring,
    // but those do not make sense in the first place, so this works in practice.
    const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
    const stripParensRE = /^\(|\)$/g;
    function parseForExpression(input, context) {
        const loc = input.loc;
        const exp = input.content;
        const inMatch = exp.match(forAliasRE);
        if (!inMatch)
            return;
        const [, LHS, RHS] = inMatch;
        const result = {
            source: createAliasExpression(loc, RHS.trim(), exp.indexOf(RHS, LHS.length)),
            value: undefined,
            key: undefined,
            index: undefined
        };
        {
            validateBrowserExpression(result.source, context);
        }
        let valueContent = LHS.trim().replace(stripParensRE, '').trim();
        const trimmedOffset = LHS.indexOf(valueContent);
        const iteratorMatch = valueContent.match(forIteratorRE);
        if (iteratorMatch) {
            valueContent = valueContent.replace(forIteratorRE, '').trim();
            const keyContent = iteratorMatch[1].trim();
            let keyOffset;
            if (keyContent) {
                keyOffset = exp.indexOf(keyContent, trimmedOffset + valueContent.length);
                result.key = createAliasExpression(loc, keyContent, keyOffset);
                {
                    validateBrowserExpression(result.key, context, true);
                }
            }
            if (iteratorMatch[2]) {
                const indexContent = iteratorMatch[2].trim();
                if (indexContent) {
                    result.index = createAliasExpression(loc, indexContent, exp.indexOf(indexContent, result.key
                        ? keyOffset + keyContent.length
                        : trimmedOffset + valueContent.length));
                    {
                        validateBrowserExpression(result.index, context, true);
                    }
                }
            }
        }
        if (valueContent) {
            result.value = createAliasExpression(loc, valueContent, trimmedOffset);
            {
                validateBrowserExpression(result.value, context, true);
            }
        }
        return result;
    }
    function createAliasExpression(range, content, offset) {
        return createSimpleExpression(content, false, getInnerRange(range, offset, content.length));
    }
    function createForLoopParams({ value, key, index }, memoArgs = []) {
        return createParamsList([value, key, index, ...memoArgs]);
    }
    function createParamsList(args) {
        let i = args.length;
        while (i--) {
            if (args[i])
                break;
        }
        return args
            .slice(0, i + 1)
            .map((arg, i) => arg || createSimpleExpression(`_`.repeat(i + 1), false));
    }
  
    const defaultFallback = createSimpleExpression(`undefined`, false);
    // A NodeTransform that:
    // 1. Tracks scope identifiers for scoped slots so that they don't get prefixed
    //    by transformExpression. This is only applied in non-browser builds with
    //    { prefixIdentifiers: true }.
    // 2. Track v-slot depths so that we know a slot is inside another slot.
    //    Note the exit callback is executed before buildSlots() on the same node,
    //    so only nested slots see positive numbers.
    const trackSlotScopes = (node, context) => {
        if (node.type === 1 /* NodeTypes.ELEMENT */ &&
            (node.tagType === 1 /* ElementTypes.COMPONENT */ ||
                node.tagType === 3 /* ElementTypes.TEMPLATE */)) {
            // We are only checking non-empty v-slot here
            // since we only care about slots that introduce scope variables.
            const vSlot = findDir(node, 'slot');
            if (vSlot) {
                vSlot.exp;
                context.scopes.vSlot++;
                return () => {
                    context.scopes.vSlot--;
                };
            }
        }
    };
    const buildClientSlotFn = (props, children, loc) => createFunctionExpression(props, children, false /* newline */, true /* isSlot */, children.length ? children[0].loc : loc);
    // Instead of being a DirectiveTransform, v-slot processing is called during
    // transformElement to build the slots object for a component.
    function buildSlots(node, context, buildSlotFn = buildClientSlotFn) {
        context.helper(WITH_CTX);
        const { children, loc } = node;
        const slotsProperties = [];
        const dynamicSlots = [];
        // If the slot is inside a v-for or another v-slot, force it to be dynamic
        // since it likely uses a scope variable.
        let hasDynamicSlots = context.scopes.vSlot > 0 || context.scopes.vFor > 0;
        // 1. Check for slot with slotProps on component itself.
        //    <Comp v-slot="{ prop }"/>
        const onComponentSlot = findDir(node, 'slot', true);
        if (onComponentSlot) {
            const { arg, exp } = onComponentSlot;
            if (arg && !isStaticExp(arg)) {
                hasDynamicSlots = true;
            }
            slotsProperties.push(createObjectProperty(arg || createSimpleExpression('default', true), buildSlotFn(exp, children, loc)));
        }
        // 2. Iterate through children and check for template slots
        //    <template v-slot:foo="{ prop }">
        let hasTemplateSlots = false;
        let hasNamedDefaultSlot = false;
        const implicitDefaultChildren = [];
        const seenSlotNames = new Set();
        let conditionalBranchIndex = 0;
        for (let i = 0; i < children.length; i++) {
            const slotElement = children[i];
            let slotDir;
            if (!isTemplateNode(slotElement) ||
                !(slotDir = findDir(slotElement, 'slot', true))) {
                // not a <template v-slot>, skip.
                if (slotElement.type !== 3 /* NodeTypes.COMMENT */) {
                    implicitDefaultChildren.push(slotElement);
                }
                continue;
            }
            if (onComponentSlot) {
                // already has on-component slot - this is incorrect usage.
                context.onError(createCompilerError(37 /* ErrorCodes.X_V_SLOT_MIXED_SLOT_USAGE */, slotDir.loc));
                break;
            }
            hasTemplateSlots = true;
            const { children: slotChildren, loc: slotLoc } = slotElement;
            const { arg: slotName = createSimpleExpression(`default`, true), exp: slotProps, loc: dirLoc } = slotDir;
            // check if name is dynamic.
            let staticSlotName;
            if (isStaticExp(slotName)) {
                staticSlotName = slotName ? slotName.content : `default`;
            }
            else {
                hasDynamicSlots = true;
            }
            const slotFunction = buildSlotFn(slotProps, slotChildren, slotLoc);
            // check if this slot is conditional (v-if/v-for)
            let vIf;
            let vElse;
            let vFor;
            if ((vIf = findDir(slotElement, 'if'))) {
                hasDynamicSlots = true;
                dynamicSlots.push(createConditionalExpression(vIf.exp, buildDynamicSlot(slotName, slotFunction, conditionalBranchIndex++), defaultFallback));
            }
            else if ((vElse = findDir(slotElement, /^else(-if)?$/, true /* allowEmpty */))) {
                // find adjacent v-if
                let j = i;
                let prev;
                while (j--) {
                    prev = children[j];
                    if (prev.type !== 3 /* NodeTypes.COMMENT */) {
                        break;
                    }
                }
                if (prev && isTemplateNode(prev) && findDir(prev, 'if')) {
                    // remove node
                    children.splice(i, 1);
                    i--;
                    // attach this slot to previous conditional
                    let conditional = dynamicSlots[dynamicSlots.length - 1];
                    while (conditional.alternate.type === 19 /* NodeTypes.JS_CONDITIONAL_EXPRESSION */) {
                        conditional = conditional.alternate;
                    }
                    conditional.alternate = vElse.exp
                        ? createConditionalExpression(vElse.exp, buildDynamicSlot(slotName, slotFunction, conditionalBranchIndex++), defaultFallback)
                        : buildDynamicSlot(slotName, slotFunction, conditionalBranchIndex++);
                }
                else {
                    context.onError(createCompilerError(30 /* ErrorCodes.X_V_ELSE_NO_ADJACENT_IF */, vElse.loc));
                }
            }
            else if ((vFor = findDir(slotElement, 'for'))) {
                hasDynamicSlots = true;
                const parseResult = vFor.parseResult ||
                    parseForExpression(vFor.exp, context);
                if (parseResult) {
                    // Render the dynamic slots as an array and add it to the createSlot()
                    // args. The runtime knows how to handle it appropriately.
                    dynamicSlots.push(createCallExpression(context.helper(RENDER_LIST), [
                        parseResult.source,
                        createFunctionExpression(createForLoopParams(parseResult), buildDynamicSlot(slotName, slotFunction), true /* force newline */)
                    ]));
                }
                else {
                    context.onError(createCompilerError(32 /* ErrorCodes.X_V_FOR_MALFORMED_EXPRESSION */, vFor.loc));
                }
            }
            else {
                // check duplicate static names
                if (staticSlotName) {
                    if (seenSlotNames.has(staticSlotName)) {
                        context.onError(createCompilerError(38 /* ErrorCodes.X_V_SLOT_DUPLICATE_SLOT_NAMES */, dirLoc));
                        continue;
                    }
                    seenSlotNames.add(staticSlotName);
                    if (staticSlotName === 'default') {
                        hasNamedDefaultSlot = true;
                    }
                }
                slotsProperties.push(createObjectProperty(slotName, slotFunction));
            }
        }
        if (!onComponentSlot) {
            const buildDefaultSlotProperty = (props, children) => {
                const fn = buildSlotFn(props, children, loc);
                return createObjectProperty(`default`, fn);
            };
            if (!hasTemplateSlots) {
                // implicit default slot (on component)
                slotsProperties.push(buildDefaultSlotProperty(undefined, children));
            }
            else if (implicitDefaultChildren.length &&
                // #3766
                // with whitespace: 'preserve', whitespaces between slots will end up in
                // implicitDefaultChildren. Ignore if all implicit children are whitespaces.
                implicitDefaultChildren.some(node => isNonWhitespaceContent(node))) {
                // implicit default slot (mixed with named slots)
                if (hasNamedDefaultSlot) {
                    context.onError(createCompilerError(39 /* ErrorCodes.X_V_SLOT_EXTRANEOUS_DEFAULT_SLOT_CHILDREN */, implicitDefaultChildren[0].loc));
                }
                else {
                    slotsProperties.push(buildDefaultSlotProperty(undefined, implicitDefaultChildren));
                }
            }
        }
        const slotFlag = hasDynamicSlots
            ? 2 /* SlotFlags.DYNAMIC */
            : hasForwardedSlots(node.children)
                ? 3 /* SlotFlags.FORWARDED */
                : 1 /* SlotFlags.STABLE */;
        let slots = createObjectExpression(slotsProperties.concat(createObjectProperty(`_`, 
        // 2 = compiled but dynamic = can skip normalization, but must run diff
        // 1 = compiled and static = can skip normalization AND diff as optimized
        createSimpleExpression(slotFlag + (` /* ${slotFlagsText[slotFlag]} */` ), false))), loc);
        if (dynamicSlots.length) {
            slots = createCallExpression(context.helper(CREATE_SLOTS), [
                slots,
                createArrayExpression(dynamicSlots)
            ]);
        }
        return {
            slots,
            hasDynamicSlots
        };
    }
    function buildDynamicSlot(name, fn, index) {
        const props = [
            createObjectProperty(`name`, name),
            createObjectProperty(`fn`, fn)
        ];
        if (index != null) {
            props.push(createObjectProperty(`key`, createSimpleExpression(String(index), true)));
        }
        return createObjectExpression(props);
    }
    function hasForwardedSlots(children) {
        for (let i = 0; i < children.length; i++) {
            const child = children[i];
            switch (child.type) {
                case 1 /* NodeTypes.ELEMENT */:
                    if (child.tagType === 2 /* ElementTypes.SLOT */ ||
                        hasForwardedSlots(child.children)) {
                        return true;
                    }
                    break;
                case 9 /* NodeTypes.IF */:
                    if (hasForwardedSlots(child.branches))
                        return true;
                    break;
                case 10 /* NodeTypes.IF_BRANCH */:
                case 11 /* NodeTypes.FOR */:
                    if (hasForwardedSlots(child.children))
                        return true;
                    break;
            }
        }
        return false;
    }
    function isNonWhitespaceContent(node) {
        if (node.type !== 2 /* NodeTypes.TEXT */ && node.type !== 12 /* NodeTypes.TEXT_CALL */)
            return true;
        return node.type === 2 /* NodeTypes.TEXT */
            ? !!node.content.trim()
            : isNonWhitespaceContent(node.content);
    }
  
    // some directive transforms (e.g. v-model) may return a symbol for runtime
    // import, which should be used instead of a resolveDirective call.
    const directiveImportMap = new WeakMap();
    // generate a JavaScript AST for this element's codegen
    const transformElement = (node, context) => {
        // perform the work on exit, after all child expressions have been
        // processed and merged.
        return function postTransformElement() {
            node = context.currentNode;
            if (!(node.type === 1 /* NodeTypes.ELEMENT */ &&
                (node.tagType === 0 /* ElementTypes.ELEMENT */ ||
                    node.tagType === 1 /* ElementTypes.COMPONENT */))) {
                return;
            }
            const { tag, props } = node;
            const isComponent = node.tagType === 1 /* ElementTypes.COMPONENT */;
            // The goal of the transform is to create a codegenNode implementing the
            // VNodeCall interface.
            let vnodeTag = isComponent
                ? resolveComponentType(node, context)
                : `"${tag}"`;
            const isDynamicComponent = isObject(vnodeTag) && vnodeTag.callee === RESOLVE_DYNAMIC_COMPONENT;
            let vnodeProps;
            let vnodeChildren;
            let vnodePatchFlag;
            let patchFlag = 0;
            let vnodeDynamicProps;
            let dynamicPropNames;
            let vnodeDirectives;
            let shouldUseBlock = 
            // dynamic component may resolve to plain elements
            isDynamicComponent ||
                vnodeTag === TELEPORT ||
                vnodeTag === SUSPENSE ||
                (!isComponent &&
                    // <svg> and <foreignObject> must be forced into blocks so that block
                    // updates inside get proper isSVG flag at runtime. (#639, #643)
                    // This is technically web-specific, but splitting the logic out of core
                    // leads to too much unnecessary complexity.
                    (tag === 'svg' || tag === 'foreignObject'));
            // props
            if (props.length > 0) {
                const propsBuildResult = buildProps(node, context, undefined, isComponent, isDynamicComponent);
                vnodeProps = propsBuildResult.props;
                patchFlag = propsBuildResult.patchFlag;
                dynamicPropNames = propsBuildResult.dynamicPropNames;
                const directives = propsBuildResult.directives;
                vnodeDirectives =
                    directives && directives.length
                        ? createArrayExpression(directives.map(dir => buildDirectiveArgs(dir, context)))
                        : undefined;
                if (propsBuildResult.shouldUseBlock) {
                    shouldUseBlock = true;
                }
            }
            // children
            if (node.children.length > 0) {
                if (vnodeTag === KEEP_ALIVE) {
                    // Although a built-in component, we compile KeepAlive with raw children
                    // instead of slot functions so that it can be used inside Transition
                    // or other Transition-wrapping HOCs.
                    // To ensure correct updates with block optimizations, we need to:
                    // 1. Force keep-alive into a block. This avoids its children being
                    //    collected by a parent block.
                    shouldUseBlock = true;
                    // 2. Force keep-alive to always be updated, since it uses raw children.
                    patchFlag |= 1024 /* PatchFlags.DYNAMIC_SLOTS */;
                    if (node.children.length > 1) {
                        context.onError(createCompilerError(46 /* ErrorCodes.X_KEEP_ALIVE_INVALID_CHILDREN */, {
                            start: node.children[0].loc.start,
                            end: node.children[node.children.length - 1].loc.end,
                            source: ''
                        }));
                    }
                }
                const shouldBuildAsSlots = isComponent &&
                    // Teleport is not a real component and has dedicated runtime handling
                    vnodeTag !== TELEPORT &&
                    // explained above.
                    vnodeTag !== KEEP_ALIVE;
                if (shouldBuildAsSlots) {
                    const { slots, hasDynamicSlots } = buildSlots(node, context);
                    vnodeChildren = slots;
                    if (hasDynamicSlots) {
                        patchFlag |= 1024 /* PatchFlags.DYNAMIC_SLOTS */;
                    }
                }
                else if (node.children.length === 1 && vnodeTag !== TELEPORT) {
                    const child = node.children[0];
                    const type = child.type;
                    // check for dynamic text children
                    const hasDynamicTextChild = type === 5 /* NodeTypes.INTERPOLATION */ ||
                        type === 8 /* NodeTypes.COMPOUND_EXPRESSION */;
                    if (hasDynamicTextChild &&
                        getConstantType(child, context) === 0 /* ConstantTypes.NOT_CONSTANT */) {
                        patchFlag |= 1 /* PatchFlags.TEXT */;
                    }
                    // pass directly if the only child is a text node
                    // (plain / interpolation / expression)
                    if (hasDynamicTextChild || type === 2 /* NodeTypes.TEXT */) {
                        vnodeChildren = child;
                    }
                    else {
                        vnodeChildren = node.children;
                    }
                }
                else {
                    vnodeChildren = node.children;
                }
            }
            // patchFlag & dynamicPropNames
            if (patchFlag !== 0) {
                {
                    if (patchFlag < 0) {
                        // special flags (negative and mutually exclusive)
                        vnodePatchFlag = patchFlag + ` /* ${PatchFlagNames[patchFlag]} */`;
                    }
                    else {
                        // bitwise flags
                        const flagNames = Object.keys(PatchFlagNames)
                            .map(Number)
                            .filter(n => n > 0 && patchFlag & n)
                            .map(n => PatchFlagNames[n])
                            .join(`, `);
                        vnodePatchFlag = patchFlag + ` /* ${flagNames} */`;
                    }
                }
                if (dynamicPropNames && dynamicPropNames.length) {
                    vnodeDynamicProps = stringifyDynamicPropNames(dynamicPropNames);
                }
            }
            node.codegenNode = createVNodeCall(context, vnodeTag, vnodeProps, vnodeChildren, vnodePatchFlag, vnodeDynamicProps, vnodeDirectives, !!shouldUseBlock, false /* disableTracking */, isComponent, node.loc);
        };
    };
    function resolveComponentType(node, context, ssr = false) {
        let { tag } = node;
        // 1. dynamic component
        const isExplicitDynamic = isComponentTag(tag);
        const isProp = findProp(node, 'is');
        if (isProp) {
            if (isExplicitDynamic ||
                (false )) {
                const exp = isProp.type === 6 /* NodeTypes.ATTRIBUTE */
                    ? isProp.value && createSimpleExpression(isProp.value.content, true)
                    : isProp.exp;
                if (exp) {
                    return createCallExpression(context.helper(RESOLVE_DYNAMIC_COMPONENT), [
                        exp
                    ]);
                }
            }
            else if (isProp.type === 6 /* NodeTypes.ATTRIBUTE */ &&
                isProp.value.content.startsWith('vue:')) {
                // <button is="vue:xxx">
                // if not <component>, only is value that starts with "vue:" will be
                // treated as component by the parse phase and reach here, unless it's
                // compat mode where all is values are considered components
                tag = isProp.value.content.slice(4);
            }
        }
        // 1.5 v-is (TODO: Deprecate)
        const isDir = !isExplicitDynamic && findDir(node, 'is');
        if (isDir && isDir.exp) {
            return createCallExpression(context.helper(RESOLVE_DYNAMIC_COMPONENT), [
                isDir.exp
            ]);
        }
        // 2. built-in components (Teleport, Transition, KeepAlive, Suspense...)
        const builtIn = isCoreComponent(tag) || context.isBuiltInComponent(tag);
        if (builtIn) {
            // built-ins are simply fallthroughs / have special handling during ssr
            // so we don't need to import their runtime equivalents
            if (!ssr)
                context.helper(builtIn);
            return builtIn;
        }
        // 5. user component (resolve)
        context.helper(RESOLVE_COMPONENT);
        context.components.add(tag);
        return toValidAssetId(tag, `component`);
    }
    function buildProps(node, context, props = node.props, isComponent, isDynamicComponent, ssr = false) {
        const { tag, loc: elementLoc, children } = node;
        let properties = [];
        const mergeArgs = [];
        const runtimeDirectives = [];
        const hasChildren = children.length > 0;
        let shouldUseBlock = false;
        // patchFlag analysis
        let patchFlag = 0;
        let hasRef = false;
        let hasClassBinding = false;
        let hasStyleBinding = false;
        let hasHydrationEventBinding = false;
        let hasDynamicKeys = false;
        let hasVnodeHook = false;
        const dynamicPropNames = [];
        const pushMergeArg = (arg) => {
            if (properties.length) {
                mergeArgs.push(createObjectExpression(dedupeProperties(properties), elementLoc));
                properties = [];
            }
            if (arg)
                mergeArgs.push(arg);
        };
        const analyzePatchFlag = ({ key, value }) => {
            if (isStaticExp(key)) {
                const name = key.content;
                const isEventHandler = isOn(name);
                if (isEventHandler &&
                    (!isComponent || isDynamicComponent) &&
                    // omit the flag for click handlers because hydration gives click
                    // dedicated fast path.
                    name.toLowerCase() !== 'onclick' &&
                    // omit v-model handlers
                    name !== 'onUpdate:modelValue' &&
                    // omit onVnodeXXX hooks
                    !isReservedProp(name)) {
                    hasHydrationEventBinding = true;
                }
                if (isEventHandler && isReservedProp(name)) {
                    hasVnodeHook = true;
                }
                if (value.type === 20 /* NodeTypes.JS_CACHE_EXPRESSION */ ||
                    ((value.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ ||
                        value.type === 8 /* NodeTypes.COMPOUND_EXPRESSION */) &&
                        getConstantType(value, context) > 0)) {
                    // skip if the prop is a cached handler or has constant value
                    return;
                }
                if (name === 'ref') {
                    hasRef = true;
                }
                else if (name === 'class') {
                    hasClassBinding = true;
                }
                else if (name === 'style') {
                    hasStyleBinding = true;
                }
                else if (name !== 'key' && !dynamicPropNames.includes(name)) {
                    dynamicPropNames.push(name);
                }
                // treat the dynamic class and style binding of the component as dynamic props
                if (isComponent &&
                    (name === 'class' || name === 'style') &&
                    !dynamicPropNames.includes(name)) {
                    dynamicPropNames.push(name);
                }
            }
            else {
                hasDynamicKeys = true;
            }
        };
        for (let i = 0; i < props.length; i++) {
            // static attribute
            const prop = props[i];
            if (prop.type === 6 /* NodeTypes.ATTRIBUTE */) {
                const { loc, name, value } = prop;
                let isStatic = true;
                if (name === 'ref') {
                    hasRef = true;
                    if (context.scopes.vFor > 0) {
                        properties.push(createObjectProperty(createSimpleExpression('ref_for', true), createSimpleExpression('true')));
                    }
                }
                // skip is on <component>, or is="vue:xxx"
                if (name === 'is' &&
                    (isComponentTag(tag) ||
                        (value && value.content.startsWith('vue:')) ||
                        (false ))) {
                    continue;
                }
                properties.push(createObjectProperty(createSimpleExpression(name, true, getInnerRange(loc, 0, name.length)), createSimpleExpression(value ? value.content : '', isStatic, value ? value.loc : loc)));
            }
            else {
                // directives
                const { name, arg, exp, loc } = prop;
                const isVBind = name === 'bind';
                const isVOn = name === 'on';
                // skip v-slot - it is handled by its dedicated transform.
                if (name === 'slot') {
                    if (!isComponent) {
                        context.onError(createCompilerError(40 /* ErrorCodes.X_V_SLOT_MISPLACED */, loc));
                    }
                    continue;
                }
                // skip v-once/v-memo - they are handled by dedicated transforms.
                if (name === 'once' || name === 'memo') {
                    continue;
                }
                // skip v-is and :is on <component>
                if (name === 'is' ||
                    (isVBind &&
                        isStaticArgOf(arg, 'is') &&
                        (isComponentTag(tag) ||
                            (false )))) {
                    continue;
                }
                // skip v-on in SSR compilation
                if (isVOn && ssr) {
                    continue;
                }
                if (
                // #938: elements with dynamic keys should be forced into blocks
                (isVBind && isStaticArgOf(arg, 'key')) ||
                    // inline before-update hooks need to force block so that it is invoked
                    // before children
                    (isVOn && hasChildren && isStaticArgOf(arg, 'vue:before-update'))) {
                    shouldUseBlock = true;
                }
                if (isVBind && isStaticArgOf(arg, 'ref') && context.scopes.vFor > 0) {
                    properties.push(createObjectProperty(createSimpleExpression('ref_for', true), createSimpleExpression('true')));
                }
                // special case for v-bind and v-on with no argument
                if (!arg && (isVBind || isVOn)) {
                    hasDynamicKeys = true;
                    if (exp) {
                        if (isVBind) {
                            // have to merge early for compat build check
                            pushMergeArg();
                            mergeArgs.push(exp);
                        }
                        else {
                            // v-on="obj" -> toHandlers(obj)
                            pushMergeArg({
                                type: 14 /* NodeTypes.JS_CALL_EXPRESSION */,
                                loc,
                                callee: context.helper(TO_HANDLERS),
                                arguments: isComponent ? [exp] : [exp, `true`]
                            });
                        }
                    }
                    else {
                        context.onError(createCompilerError(isVBind
                            ? 34 /* ErrorCodes.X_V_BIND_NO_EXPRESSION */
                            : 35 /* ErrorCodes.X_V_ON_NO_EXPRESSION */, loc));
                    }
                    continue;
                }
                const directiveTransform = context.directiveTransforms[name];
                if (directiveTransform) {
                    // has built-in directive transform.
                    const { props, needRuntime } = directiveTransform(prop, node, context);
                    !ssr && props.forEach(analyzePatchFlag);
                    if (isVOn && arg && !isStaticExp(arg)) {
                        pushMergeArg(createObjectExpression(props, elementLoc));
                    }
                    else {
                        properties.push(...props);
                    }
                    if (needRuntime) {
                        runtimeDirectives.push(prop);
                        if (isSymbol(needRuntime)) {
                            directiveImportMap.set(prop, needRuntime);
                        }
                    }
                }
                else if (!isBuiltInDirective(name)) {
                    // no built-in transform, this is a user custom directive.
                    runtimeDirectives.push(prop);
                    // custom dirs may use beforeUpdate so they need to force blocks
                    // to ensure before-update gets called before children update
                    if (hasChildren) {
                        shouldUseBlock = true;
                    }
                }
            }
        }
        let propsExpression = undefined;
        // has v-bind="object" or v-on="object", wrap with mergeProps
        if (mergeArgs.length) {
            // close up any not-yet-merged props
            pushMergeArg();
            if (mergeArgs.length > 1) {
                propsExpression = createCallExpression(context.helper(MERGE_PROPS), mergeArgs, elementLoc);
            }
            else {
                // single v-bind with nothing else - no need for a mergeProps call
                propsExpression = mergeArgs[0];
            }
        }
        else if (properties.length) {
            propsExpression = createObjectExpression(dedupeProperties(properties), elementLoc);
        }
        // patchFlag analysis
        if (hasDynamicKeys) {
            patchFlag |= 16 /* PatchFlags.FULL_PROPS */;
        }
        else {
            if (hasClassBinding && !isComponent) {
                patchFlag |= 2 /* PatchFlags.CLASS */;
            }
            if (hasStyleBinding && !isComponent) {
                patchFlag |= 4 /* PatchFlags.STYLE */;
            }
            if (dynamicPropNames.length) {
                patchFlag |= 8 /* PatchFlags.PROPS */;
            }
            if (hasHydrationEventBinding) {
                patchFlag |= 32 /* PatchFlags.HYDRATE_EVENTS */;
            }
        }
        if (!shouldUseBlock &&
            (patchFlag === 0 || patchFlag === 32 /* PatchFlags.HYDRATE_EVENTS */) &&
            (hasRef || hasVnodeHook || runtimeDirectives.length > 0)) {
            patchFlag |= 512 /* PatchFlags.NEED_PATCH */;
        }
        // pre-normalize props, SSR is skipped for now
        if (!context.inSSR && propsExpression) {
            switch (propsExpression.type) {
                case 15 /* NodeTypes.JS_OBJECT_EXPRESSION */:
                    // means that there is no v-bind,
                    // but still need to deal with dynamic key binding
                    let classKeyIndex = -1;
                    let styleKeyIndex = -1;
                    let hasDynamicKey = false;
                    for (let i = 0; i < propsExpression.properties.length; i++) {
                        const key = propsExpression.properties[i].key;
                        if (isStaticExp(key)) {
                            if (key.content === 'class') {
                                classKeyIndex = i;
                            }
                            else if (key.content === 'style') {
                                styleKeyIndex = i;
                            }
                        }
                        else if (!key.isHandlerKey) {
                            hasDynamicKey = true;
                        }
                    }
                    const classProp = propsExpression.properties[classKeyIndex];
                    const styleProp = propsExpression.properties[styleKeyIndex];
                    // no dynamic key
                    if (!hasDynamicKey) {
                        if (classProp && !isStaticExp(classProp.value)) {
                            classProp.value = createCallExpression(context.helper(NORMALIZE_CLASS), [classProp.value]);
                        }
                        if (styleProp &&
                            // the static style is compiled into an object,
                            // so use `hasStyleBinding` to ensure that it is a dynamic style binding
                            (hasStyleBinding ||
                                (styleProp.value.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ &&
                                    styleProp.value.content.trim()[0] === `[`) ||
                                // v-bind:style and style both exist,
                                // v-bind:style with static literal object
                                styleProp.value.type === 17 /* NodeTypes.JS_ARRAY_EXPRESSION */)) {
                            styleProp.value = createCallExpression(context.helper(NORMALIZE_STYLE), [styleProp.value]);
                        }
                    }
                    else {
                        // dynamic key binding, wrap with `normalizeProps`
                        propsExpression = createCallExpression(context.helper(NORMALIZE_PROPS), [propsExpression]);
                    }
                    break;
                case 14 /* NodeTypes.JS_CALL_EXPRESSION */:
                    // mergeProps call, do nothing
                    break;
                default:
                    // single v-bind
                    propsExpression = createCallExpression(context.helper(NORMALIZE_PROPS), [
                        createCallExpression(context.helper(GUARD_REACTIVE_PROPS), [
                            propsExpression
                        ])
                    ]);
                    break;
            }
        }
        return {
            props: propsExpression,
            directives: runtimeDirectives,
            patchFlag,
            dynamicPropNames,
            shouldUseBlock
        };
    }
    // Dedupe props in an object literal.
    // Literal duplicated attributes would have been warned during the parse phase,
    // however, it's possible to encounter duplicated `onXXX` handlers with different
    // modifiers. We also need to merge static and dynamic class / style attributes.
    // - onXXX handlers / style: merge into array
    // - class: merge into single expression with concatenation
    function dedupeProperties(properties) {
        const knownProps = new Map();
        const deduped = [];
        for (let i = 0; i < properties.length; i++) {
            const prop = properties[i];
            // dynamic keys are always allowed
            if (prop.key.type === 8 /* NodeTypes.COMPOUND_EXPRESSION */ || !prop.key.isStatic) {
                deduped.push(prop);
                continue;
            }
            const name = prop.key.content;
            const existing = knownProps.get(name);
            if (existing) {
                if (name === 'style' || name === 'class' || isOn(name)) {
                    mergeAsArray(existing, prop);
                }
                // unexpected duplicate, should have emitted error during parse
            }
            else {
                knownProps.set(name, prop);
                deduped.push(prop);
            }
        }
        return deduped;
    }
    function mergeAsArray(existing, incoming) {
        if (existing.value.type === 17 /* NodeTypes.JS_ARRAY_EXPRESSION */) {
            existing.value.elements.push(incoming.value);
        }
        else {
            existing.value = createArrayExpression([existing.value, incoming.value], existing.loc);
        }
    }
    function buildDirectiveArgs(dir, context) {
        const dirArgs = [];
        const runtime = directiveImportMap.get(dir);
        if (runtime) {
            // built-in directive with runtime
            dirArgs.push(context.helperString(runtime));
        }
        else {
            {
                // inject statement for resolving directive
                context.helper(RESOLVE_DIRECTIVE);
                context.directives.add(dir.name);
                dirArgs.push(toValidAssetId(dir.name, `directive`));
            }
        }
        const { loc } = dir;
        if (dir.exp)
            dirArgs.push(dir.exp);
        if (dir.arg) {
            if (!dir.exp) {
                dirArgs.push(`void 0`);
            }
            dirArgs.push(dir.arg);
        }
        if (Object.keys(dir.modifiers).length) {
            if (!dir.arg) {
                if (!dir.exp) {
                    dirArgs.push(`void 0`);
                }
                dirArgs.push(`void 0`);
            }
            const trueExpression = createSimpleExpression(`true`, false, loc);
            dirArgs.push(createObjectExpression(dir.modifiers.map(modifier => createObjectProperty(modifier, trueExpression)), loc));
        }
        return createArrayExpression(dirArgs, dir.loc);
    }
    function stringifyDynamicPropNames(props) {
        let propsNamesString = `[`;
        for (let i = 0, l = props.length; i < l; i++) {
            propsNamesString += JSON.stringify(props[i]);
            if (i < l - 1)
                propsNamesString += ', ';
        }
        return propsNamesString + `]`;
    }
    function isComponentTag(tag) {
        return tag === 'component' || tag === 'Component';
    }
  
    const transformSlotOutlet = (node, context) => {
        if (isSlotOutlet(node)) {
            const { children, loc } = node;
            const { slotName, slotProps } = processSlotOutlet(node, context);
            const slotArgs = [
                context.prefixIdentifiers ? `_ctx.$slots` : `$slots`,
                slotName,
                '{}',
                'undefined',
                'true'
            ];
            let expectedLen = 2;
            if (slotProps) {
                slotArgs[2] = slotProps;
                expectedLen = 3;
            }
            if (children.length) {
                slotArgs[3] = createFunctionExpression([], children, false, false, loc);
                expectedLen = 4;
            }
            if (context.scopeId && !context.slotted) {
                expectedLen = 5;
            }
            slotArgs.splice(expectedLen); // remove unused arguments
            node.codegenNode = createCallExpression(context.helper(RENDER_SLOT), slotArgs, loc);
        }
    };
    function processSlotOutlet(node, context) {
        let slotName = `"default"`;
        let slotProps = undefined;
        const nonNameProps = [];
        for (let i = 0; i < node.props.length; i++) {
            const p = node.props[i];
            if (p.type === 6 /* NodeTypes.ATTRIBUTE */) {
                if (p.value) {
                    if (p.name === 'name') {
                        slotName = JSON.stringify(p.value.content);
                    }
                    else {
                        p.name = camelize(p.name);
                        nonNameProps.push(p);
                    }
                }
            }
            else {
                if (p.name === 'bind' && isStaticArgOf(p.arg, 'name')) {
                    if (p.exp)
                        slotName = p.exp;
                }
                else {
                    if (p.name === 'bind' && p.arg && isStaticExp(p.arg)) {
                        p.arg.content = camelize(p.arg.content);
                    }
                    nonNameProps.push(p);
                }
            }
        }
        if (nonNameProps.length > 0) {
            const { props, directives } = buildProps(node, context, nonNameProps, false, false);
            slotProps = props;
            if (directives.length) {
                context.onError(createCompilerError(36 /* ErrorCodes.X_V_SLOT_UNEXPECTED_DIRECTIVE_ON_SLOT_OUTLET */, directives[0].loc));
            }
        }
        return {
            slotName,
            slotProps
        };
    }
  
    const fnExpRE = /^\s*([\w$_]+|(async\s*)?\([^)]*?\))\s*(:[^=]+)?=>|^\s*(async\s+)?function(?:\s+[\w$]+)?\s*\(/;
    const transformOn$1 = (dir, node, context, augmentor) => {
        const { loc, modifiers, arg } = dir;
        if (!dir.exp && !modifiers.length) {
            context.onError(createCompilerError(35 /* ErrorCodes.X_V_ON_NO_EXPRESSION */, loc));
        }
        let eventName;
        if (arg.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */) {
            if (arg.isStatic) {
                let rawName = arg.content;
                // TODO deprecate @vnodeXXX usage
                if (rawName.startsWith('vue:')) {
                    rawName = `vnode-${rawName.slice(4)}`;
                }
                const eventString = node.tagType !== 0 /* ElementTypes.ELEMENT */ ||
                    rawName.startsWith('vnode') ||
                    !/[A-Z]/.test(rawName)
                    ? // for non-element and vnode lifecycle event listeners, auto convert
                        // it to camelCase. See issue #2249
                        toHandlerKey(camelize(rawName))
                    : // preserve case for plain element listeners that have uppercase
                        // letters, as these may be custom elements' custom events
                        `on:${rawName}`;
                eventName = createSimpleExpression(eventString, true, arg.loc);
            }
            else {
                // #2388
                eventName = createCompoundExpression([
                    `${context.helperString(TO_HANDLER_KEY)}(`,
                    arg,
                    `)`
                ]);
            }
        }
        else {
            // already a compound expression.
            eventName = arg;
            eventName.children.unshift(`${context.helperString(TO_HANDLER_KEY)}(`);
            eventName.children.push(`)`);
        }
        // handler processing
        let exp = dir.exp;
        if (exp && !exp.content.trim()) {
            exp = undefined;
        }
        let shouldCache = context.cacheHandlers && !exp && !context.inVOnce;
        if (exp) {
            const isMemberExp = isMemberExpression(exp.content);
            const isInlineStatement = !(isMemberExp || fnExpRE.test(exp.content));
            const hasMultipleStatements = exp.content.includes(`;`);
            {
                validateBrowserExpression(exp, context, false, hasMultipleStatements);
            }
            if (isInlineStatement || (shouldCache && isMemberExp)) {
                // wrap inline statement in a function expression
                exp = createCompoundExpression([
                    `${isInlineStatement
                      ? `$event`
                      : `${``}(...args)`} => ${hasMultipleStatements ? `{` : `(`}`,
                    exp,
                    hasMultipleStatements ? `}` : `)`
                ]);
            }
        }
        let ret = {
            props: [
                createObjectProperty(eventName, exp || createSimpleExpression(`() => {}`, false, loc))
            ]
        };
        // apply extended compiler augmentor
        if (augmentor) {
            ret = augmentor(ret);
        }
        if (shouldCache) {
            // cache handlers so that it's always the same handler being passed down.
            // this avoids unnecessary re-renders when users use inline handlers on
            // components.
            ret.props[0].value = context.cache(ret.props[0].value);
        }
        // mark the key as handler for props normalization check
        ret.props.forEach(p => (p.key.isHandlerKey = true));
        return ret;
    };
  
    // v-bind without arg is handled directly in ./transformElements.ts due to it affecting
    // codegen for the entire props object. This transform here is only for v-bind
    // *with* args.
    const transformBind = (dir, _node, context) => {
        const { exp, modifiers, loc } = dir;
        const arg = dir.arg;
        if (arg.type !== 4 /* NodeTypes.SIMPLE_EXPRESSION */) {
            arg.children.unshift(`(`);
            arg.children.push(`) || ""`);
        }
        else if (!arg.isStatic) {
            arg.content = `${arg.content} || ""`;
        }
        // .sync is replaced by v-model:arg
        if (modifiers.includes('camel')) {
            if (arg.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */) {
                if (arg.isStatic) {
                    arg.content = camelize(arg.content);
                }
                else {
                    arg.content = `${context.helperString(CAMELIZE)}(${arg.content})`;
                }
            }
            else {
                arg.children.unshift(`${context.helperString(CAMELIZE)}(`);
                arg.children.push(`)`);
            }
        }
        if (!context.inSSR) {
            if (modifiers.includes('prop')) {
                injectPrefix(arg, '.');
            }
            if (modifiers.includes('attr')) {
                injectPrefix(arg, '^');
            }
        }
        if (!exp ||
            (exp.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ && !exp.content.trim())) {
            context.onError(createCompilerError(34 /* ErrorCodes.X_V_BIND_NO_EXPRESSION */, loc));
            return {
                props: [createObjectProperty(arg, createSimpleExpression('', true, loc))]
            };
        }
        return {
            props: [createObjectProperty(arg, exp)]
        };
    };
    const injectPrefix = (arg, prefix) => {
        if (arg.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */) {
            if (arg.isStatic) {
                arg.content = prefix + arg.content;
            }
            else {
                arg.content = `\`${prefix}\${${arg.content}}\``;
            }
        }
        else {
            arg.children.unshift(`'${prefix}' + (`);
            arg.children.push(`)`);
        }
    };
  
    // Merge adjacent text nodes and expressions into a single expression
    // e.g. <div>abc {{ d }} {{ e }}</div> should have a single expression node as child.
    const transformText = (node, context) => {
        if (node.type === 0 /* NodeTypes.ROOT */ ||
            node.type === 1 /* NodeTypes.ELEMENT */ ||
            node.type === 11 /* NodeTypes.FOR */ ||
            node.type === 10 /* NodeTypes.IF_BRANCH */) {
            // perform the transform on node exit so that all expressions have already
            // been processed.
            return () => {
                const children = node.children;
                let currentContainer = undefined;
                let hasText = false;
                for (let i = 0; i < children.length; i++) {
                    const child = children[i];
                    if (isText$1(child)) {
                        hasText = true;
                        for (let j = i + 1; j < children.length; j++) {
                            const next = children[j];
                            if (isText$1(next)) {
                                if (!currentContainer) {
                                    currentContainer = children[i] = createCompoundExpression([child], child.loc);
                                }
                                // merge adjacent text node into current
                                currentContainer.children.push(` + `, next);
                                children.splice(j, 1);
                                j--;
                            }
                            else {
                                currentContainer = undefined;
                                break;
                            }
                        }
                    }
                }
                if (!hasText ||
                    // if this is a plain element with a single text child, leave it
                    // as-is since the runtime has dedicated fast path for this by directly
                    // setting textContent of the element.
                    // for component root it's always normalized anyway.
                    (children.length === 1 &&
                        (node.type === 0 /* NodeTypes.ROOT */ ||
                            (node.type === 1 /* NodeTypes.ELEMENT */ &&
                                node.tagType === 0 /* ElementTypes.ELEMENT */ &&
                                // #3756
                                // custom directives can potentially add DOM elements arbitrarily,
                                // we need to avoid setting textContent of the element at runtime
                                // to avoid accidentally overwriting the DOM elements added
                                // by the user through custom directives.
                                !node.props.find(p => p.type === 7 /* NodeTypes.DIRECTIVE */ &&
                                    !context.directiveTransforms[p.name]) &&
                                // in compat mode, <template> tags with no special directives
                                // will be rendered as a fragment so its children must be
                                // converted into vnodes.
                                !(false ))))) {
                    return;
                }
                // pre-convert text nodes into createTextVNode(text) calls to avoid
                // runtime normalization.
                for (let i = 0; i < children.length; i++) {
                    const child = children[i];
                    if (isText$1(child) || child.type === 8 /* NodeTypes.COMPOUND_EXPRESSION */) {
                        const callArgs = [];
                        // createTextVNode defaults to single whitespace, so if it is a
                        // single space the code could be an empty call to save bytes.
                        if (child.type !== 2 /* NodeTypes.TEXT */ || child.content !== ' ') {
                            callArgs.push(child);
                        }
                        // mark dynamic text with flag so it gets patched inside a block
                        if (!context.ssr &&
                            getConstantType(child, context) === 0 /* ConstantTypes.NOT_CONSTANT */) {
                            callArgs.push(1 /* PatchFlags.TEXT */ +
                                (` /* ${PatchFlagNames[1 /* PatchFlags.TEXT */]} */` ));
                        }
                        children[i] = {
                            type: 12 /* NodeTypes.TEXT_CALL */,
                            content: child,
                            loc: child.loc,
                            codegenNode: createCallExpression(context.helper(CREATE_TEXT), callArgs)
                        };
                    }
                }
            };
        }
    };
  
    const seen$1 = new WeakSet();
    const transformOnce = (node, context) => {
        if (node.type === 1 /* NodeTypes.ELEMENT */ && findDir(node, 'once', true)) {
            if (seen$1.has(node) || context.inVOnce) {
                return;
            }
            seen$1.add(node);
            context.inVOnce = true;
            context.helper(SET_BLOCK_TRACKING);
            return () => {
                context.inVOnce = false;
                const cur = context.currentNode;
                if (cur.codegenNode) {
                    cur.codegenNode = context.cache(cur.codegenNode, true /* isVNode */);
                }
            };
        }
    };
  
    const transformModel$1 = (dir, node, context) => {
        const { exp, arg } = dir;
        if (!exp) {
            context.onError(createCompilerError(41 /* ErrorCodes.X_V_MODEL_NO_EXPRESSION */, dir.loc));
            return createTransformProps();
        }
        const rawExp = exp.loc.source;
        const expString = exp.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ ? exp.content : rawExp;
        // im SFC <script setup> inline mode, the exp may have been transformed into
        // _unref(exp)
        const bindingType = context.bindingMetadata[rawExp];
        // check props
        if (bindingType === "props" /* BindingTypes.PROPS */ ||
            bindingType === "props-aliased" /* BindingTypes.PROPS_ALIASED */) {
            context.onError(createCompilerError(44 /* ErrorCodes.X_V_MODEL_ON_PROPS */, exp.loc));
            return createTransformProps();
        }
        const maybeRef = !true  ;
        if (!expString.trim() ||
            (!isMemberExpression(expString) && !maybeRef)) {
            context.onError(createCompilerError(42 /* ErrorCodes.X_V_MODEL_MALFORMED_EXPRESSION */, exp.loc));
            return createTransformProps();
        }
        const propName = arg ? arg : createSimpleExpression('modelValue', true);
        const eventName = arg
            ? isStaticExp(arg)
                ? `onUpdate:${camelize(arg.content)}`
                : createCompoundExpression(['"onUpdate:" + ', arg])
            : `onUpdate:modelValue`;
        let assignmentExp;
        const eventArg = context.isTS ? `($event: any)` : `$event`;
        {
            assignmentExp = createCompoundExpression([
                `${eventArg} => ((`,
                exp,
                `) = $event)`
            ]);
        }
        const props = [
            // modelValue: foo
            createObjectProperty(propName, dir.exp),
            // "onUpdate:modelValue": $event => (foo = $event)
            createObjectProperty(eventName, assignmentExp)
        ];
        // modelModifiers: { foo: true, "bar-baz": true }
        if (dir.modifiers.length && node.tagType === 1 /* ElementTypes.COMPONENT */) {
            const modifiers = dir.modifiers
                .map(m => (isSimpleIdentifier(m) ? m : JSON.stringify(m)) + `: true`)
                .join(`, `);
            const modifiersKey = arg
                ? isStaticExp(arg)
                    ? `${arg.content}Modifiers`
                    : createCompoundExpression([arg, ' + "Modifiers"'])
                : `modelModifiers`;
            props.push(createObjectProperty(modifiersKey, createSimpleExpression(`{ ${modifiers} }`, false, dir.loc, 2 /* ConstantTypes.CAN_HOIST */)));
        }
        return createTransformProps(props);
    };
    function createTransformProps(props = []) {
        return { props };
    }
  
    const seen = new WeakSet();
    const transformMemo = (node, context) => {
        if (node.type === 1 /* NodeTypes.ELEMENT */) {
            const dir = findDir(node, 'memo');
            if (!dir || seen.has(node)) {
                return;
            }
            seen.add(node);
            return () => {
                const codegenNode = node.codegenNode ||
                    context.currentNode.codegenNode;
                if (codegenNode && codegenNode.type === 13 /* NodeTypes.VNODE_CALL */) {
                    // non-component sub tree should be turned into a block
                    if (node.tagType !== 1 /* ElementTypes.COMPONENT */) {
                        makeBlock(codegenNode, context);
                    }
                    node.codegenNode = createCallExpression(context.helper(WITH_MEMO), [
                        dir.exp,
                        createFunctionExpression(undefined, codegenNode),
                        `_cache`,
                        String(context.cached++)
                    ]);
                }
            };
        }
    };
  
    function getBaseTransformPreset(prefixIdentifiers) {
        return [
            [
                transformOnce,
                transformIf,
                transformMemo,
                transformFor,
                ...([]),
                ...([transformExpression]
                        ),
                transformSlotOutlet,
                transformElement,
                trackSlotScopes,
                transformText
            ],
            {
                on: transformOn$1,
                bind: transformBind,
                model: transformModel$1
            }
        ];
    }
    // we name it `baseCompile` so that higher order compilers like
    // @vue/compiler-dom can export `compile` while re-exporting everything else.
    function baseCompile(template, options = {}) {
        const onError = options.onError || defaultOnError;
        const isModuleMode = options.mode === 'module';
        /* istanbul ignore if */
        {
            if (options.prefixIdentifiers === true) {
                onError(createCompilerError(47 /* ErrorCodes.X_PREFIX_ID_NOT_SUPPORTED */));
            }
            else if (isModuleMode) {
                onError(createCompilerError(48 /* ErrorCodes.X_MODULE_MODE_NOT_SUPPORTED */));
            }
        }
        const prefixIdentifiers = !true ;
        if (options.cacheHandlers) {
            onError(createCompilerError(49 /* ErrorCodes.X_CACHE_HANDLER_NOT_SUPPORTED */));
        }
        if (options.scopeId && !isModuleMode) {
            onError(createCompilerError(50 /* ErrorCodes.X_SCOPE_ID_NOT_SUPPORTED */));
        }
        const ast = isString(template) ? baseParse(template, options) : template;
        const [nodeTransforms, directiveTransforms] = getBaseTransformPreset();
        transform(ast, extend({}, options, {
            prefixIdentifiers,
            nodeTransforms: [
                ...nodeTransforms,
                ...(options.nodeTransforms || []) // user transforms
            ],
            directiveTransforms: extend({}, directiveTransforms, options.directiveTransforms || {} // user transforms
            )
        }));
        return generate(ast, extend({}, options, {
            prefixIdentifiers
        }));
    }
  
    const noopDirectiveTransform = () => ({ props: [] });
  
    const V_MODEL_RADIO = Symbol(`vModelRadio` );
    const V_MODEL_CHECKBOX = Symbol(`vModelCheckbox` );
    const V_MODEL_TEXT = Symbol(`vModelText` );
    const V_MODEL_SELECT = Symbol(`vModelSelect` );
    const V_MODEL_DYNAMIC = Symbol(`vModelDynamic` );
    const V_ON_WITH_MODIFIERS = Symbol(`vOnModifiersGuard` );
    const V_ON_WITH_KEYS = Symbol(`vOnKeysGuard` );
    const V_SHOW = Symbol(`vShow` );
    const TRANSITION = Symbol(`Transition` );
    const TRANSITION_GROUP = Symbol(`TransitionGroup` );
    registerRuntimeHelpers({
        [V_MODEL_RADIO]: `vModelRadio`,
        [V_MODEL_CHECKBOX]: `vModelCheckbox`,
        [V_MODEL_TEXT]: `vModelText`,
        [V_MODEL_SELECT]: `vModelSelect`,
        [V_MODEL_DYNAMIC]: `vModelDynamic`,
        [V_ON_WITH_MODIFIERS]: `withModifiers`,
        [V_ON_WITH_KEYS]: `withKeys`,
        [V_SHOW]: `vShow`,
        [TRANSITION]: `Transition`,
        [TRANSITION_GROUP]: `TransitionGroup`
    });
  
    /* eslint-disable no-restricted-globals */
    let decoder;
    function decodeHtmlBrowser(raw, asAttr = false) {
        if (!decoder) {
            decoder = document.createElement('div');
        }
        if (asAttr) {
            decoder.innerHTML = `<div foo="${raw.replace(/"/g, '&quot;')}">`;
            return decoder.children[0].getAttribute('foo');
        }
        else {
            decoder.innerHTML = raw;
            return decoder.textContent;
        }
    }
  
    const isRawTextContainer = /*#__PURE__*/ makeMap('style,iframe,script,noscript', true);
    const parserOptions = {
        isVoidTag,
        isNativeTag: tag => isHTMLTag(tag) || isSVGTag(tag),
        isPreTag: tag => tag === 'pre',
        decodeEntities: decodeHtmlBrowser ,
        isBuiltInComponent: (tag) => {
            if (isBuiltInType(tag, `Transition`)) {
                return TRANSITION;
            }
            else if (isBuiltInType(tag, `TransitionGroup`)) {
                return TRANSITION_GROUP;
            }
        },
        // https://html.spec.whatwg.org/multipage/parsing.html#tree-construction-dispatcher
        getNamespace(tag, parent) {
            let ns = parent ? parent.ns : 0 /* DOMNamespaces.HTML */;
            if (parent && ns === 2 /* DOMNamespaces.MATH_ML */) {
                if (parent.tag === 'annotation-xml') {
                    if (tag === 'svg') {
                        return 1 /* DOMNamespaces.SVG */;
                    }
                    if (parent.props.some(a => a.type === 6 /* NodeTypes.ATTRIBUTE */ &&
                        a.name === 'encoding' &&
                        a.value != null &&
                        (a.value.content === 'text/html' ||
                            a.value.content === 'application/xhtml+xml'))) {
                        ns = 0 /* DOMNamespaces.HTML */;
                    }
                }
                else if (/^m(?:[ions]|text)$/.test(parent.tag) &&
                    tag !== 'mglyph' &&
                    tag !== 'malignmark') {
                    ns = 0 /* DOMNamespaces.HTML */;
                }
            }
            else if (parent && ns === 1 /* DOMNamespaces.SVG */) {
                if (parent.tag === 'foreignObject' ||
                    parent.tag === 'desc' ||
                    parent.tag === 'title') {
                    ns = 0 /* DOMNamespaces.HTML */;
                }
            }
            if (ns === 0 /* DOMNamespaces.HTML */) {
                if (tag === 'svg') {
                    return 1 /* DOMNamespaces.SVG */;
                }
                if (tag === 'math') {
                    return 2 /* DOMNamespaces.MATH_ML */;
                }
            }
            return ns;
        },
        // https://html.spec.whatwg.org/multipage/parsing.html#parsing-html-fragments
        getTextMode({ tag, ns }) {
            if (ns === 0 /* DOMNamespaces.HTML */) {
                if (tag === 'textarea' || tag === 'title') {
                    return 1 /* TextModes.RCDATA */;
                }
                if (isRawTextContainer(tag)) {
                    return 2 /* TextModes.RAWTEXT */;
                }
            }
            return 0 /* TextModes.DATA */;
        }
    };
  
    // Parse inline CSS strings for static style attributes into an object.
    // This is a NodeTransform since it works on the static `style` attribute and
    // converts it into a dynamic equivalent:
    // style="color: red" -> :style='{ "color": "red" }'
    // It is then processed by `transformElement` and included in the generated
    // props.
    const transformStyle = node => {
        if (node.type === 1 /* NodeTypes.ELEMENT */) {
            node.props.forEach((p, i) => {
                if (p.type === 6 /* NodeTypes.ATTRIBUTE */ && p.name === 'style' && p.value) {
                    // replace p with an expression node
                    node.props[i] = {
                        type: 7 /* NodeTypes.DIRECTIVE */,
                        name: `bind`,
                        arg: createSimpleExpression(`style`, true, p.loc),
                        exp: parseInlineCSS(p.value.content, p.loc),
                        modifiers: [],
                        loc: p.loc
                    };
                }
            });
        }
    };
    const parseInlineCSS = (cssText, loc) => {
        const normalized = parseStringStyle(cssText);
        return createSimpleExpression(JSON.stringify(normalized), false, loc, 3 /* ConstantTypes.CAN_STRINGIFY */);
    };
  
    function createDOMCompilerError(code, loc) {
        return createCompilerError(code, loc, DOMErrorMessages );
    }
    const DOMErrorMessages = {
        [51 /* DOMErrorCodes.X_V_HTML_NO_EXPRESSION */]: `v-html is missing expression.`,
        [52 /* DOMErrorCodes.X_V_HTML_WITH_CHILDREN */]: `v-html will override element children.`,
        [53 /* DOMErrorCodes.X_V_TEXT_NO_EXPRESSION */]: `v-text is missing expression.`,
        [54 /* DOMErrorCodes.X_V_TEXT_WITH_CHILDREN */]: `v-text will override element children.`,
        [55 /* DOMErrorCodes.X_V_MODEL_ON_INVALID_ELEMENT */]: `v-model can only be used on <input>, <textarea> and <select> elements.`,
        [56 /* DOMErrorCodes.X_V_MODEL_ARG_ON_ELEMENT */]: `v-model argument is not supported on plain elements.`,
        [57 /* DOMErrorCodes.X_V_MODEL_ON_FILE_INPUT_ELEMENT */]: `v-model cannot be used on file inputs since they are read-only. Use a v-on:change listener instead.`,
        [58 /* DOMErrorCodes.X_V_MODEL_UNNECESSARY_VALUE */]: `Unnecessary value binding used alongside v-model. It will interfere with v-model's behavior.`,
        [59 /* DOMErrorCodes.X_V_SHOW_NO_EXPRESSION */]: `v-show is missing expression.`,
        [60 /* DOMErrorCodes.X_TRANSITION_INVALID_CHILDREN */]: `<Transition> expects exactly one child element or component.`,
        [61 /* DOMErrorCodes.X_IGNORED_SIDE_EFFECT_TAG */]: `Tags with side effect (<script> and <style>) are ignored in client component templates.`
    };
  
    const transformVHtml = (dir, node, context) => {
        const { exp, loc } = dir;
        if (!exp) {
            context.onError(createDOMCompilerError(51 /* DOMErrorCodes.X_V_HTML_NO_EXPRESSION */, loc));
        }
        if (node.children.length) {
            context.onError(createDOMCompilerError(52 /* DOMErrorCodes.X_V_HTML_WITH_CHILDREN */, loc));
            node.children.length = 0;
        }
        return {
            props: [
                createObjectProperty(createSimpleExpression(`innerHTML`, true, loc), exp || createSimpleExpression('', true))
            ]
        };
    };
  
    const transformVText = (dir, node, context) => {
        const { exp, loc } = dir;
        if (!exp) {
            context.onError(createDOMCompilerError(53 /* DOMErrorCodes.X_V_TEXT_NO_EXPRESSION */, loc));
        }
        if (node.children.length) {
            context.onError(createDOMCompilerError(54 /* DOMErrorCodes.X_V_TEXT_WITH_CHILDREN */, loc));
            node.children.length = 0;
        }
        return {
            props: [
                createObjectProperty(createSimpleExpression(`textContent`, true), exp
                    ? getConstantType(exp, context) > 0
                        ? exp
                        : createCallExpression(context.helperString(TO_DISPLAY_STRING), [exp], loc)
                    : createSimpleExpression('', true))
            ]
        };
    };
  
    const transformModel = (dir, node, context) => {
        const baseResult = transformModel$1(dir, node, context);
        // base transform has errors OR component v-model (only need props)
        if (!baseResult.props.length || node.tagType === 1 /* ElementTypes.COMPONENT */) {
            return baseResult;
        }
        if (dir.arg) {
            context.onError(createDOMCompilerError(56 /* DOMErrorCodes.X_V_MODEL_ARG_ON_ELEMENT */, dir.arg.loc));
        }
        function checkDuplicatedValue() {
            const value = findProp(node, 'value');
            if (value) {
                context.onError(createDOMCompilerError(58 /* DOMErrorCodes.X_V_MODEL_UNNECESSARY_VALUE */, value.loc));
            }
        }
        const { tag } = node;
        const isCustomElement = context.isCustomElement(tag);
        if (tag === 'input' ||
            tag === 'textarea' ||
            tag === 'select' ||
            isCustomElement) {
            let directiveToUse = V_MODEL_TEXT;
            let isInvalidType = false;
            if (tag === 'input' || isCustomElement) {
                const type = findProp(node, `type`);
                if (type) {
                    if (type.type === 7 /* NodeTypes.DIRECTIVE */) {
                        // :type="foo"
                        directiveToUse = V_MODEL_DYNAMIC;
                    }
                    else if (type.value) {
                        switch (type.value.content) {
                            case 'radio':
                                directiveToUse = V_MODEL_RADIO;
                                break;
                            case 'checkbox':
                                directiveToUse = V_MODEL_CHECKBOX;
                                break;
                            case 'file':
                                isInvalidType = true;
                                context.onError(createDOMCompilerError(57 /* DOMErrorCodes.X_V_MODEL_ON_FILE_INPUT_ELEMENT */, dir.loc));
                                break;
                            default:
                                // text type
                                checkDuplicatedValue();
                                break;
                        }
                    }
                }
                else if (hasDynamicKeyVBind(node)) {
                    // element has bindings with dynamic keys, which can possibly contain
                    // "type".
                    directiveToUse = V_MODEL_DYNAMIC;
                }
                else {
                    // text type
                    checkDuplicatedValue();
                }
            }
            else if (tag === 'select') {
                directiveToUse = V_MODEL_SELECT;
            }
            else {
                // textarea
                checkDuplicatedValue();
            }
            // inject runtime directive
            // by returning the helper symbol via needRuntime
            // the import will replaced a resolveDirective call.
            if (!isInvalidType) {
                baseResult.needRuntime = context.helper(directiveToUse);
            }
        }
        else {
            context.onError(createDOMCompilerError(55 /* DOMErrorCodes.X_V_MODEL_ON_INVALID_ELEMENT */, dir.loc));
        }
        // native vmodel doesn't need the `modelValue` props since they are also
        // passed to the runtime as `binding.value`. removing it reduces code size.
        baseResult.props = baseResult.props.filter(p => !(p.key.type === 4 /* NodeTypes.SIMPLE_EXPRESSION */ &&
            p.key.content === 'modelValue'));
        return baseResult;
    };
  
    const isEventOptionModifier = /*#__PURE__*/ makeMap(`passive,once,capture`);
    const isNonKeyModifier = /*#__PURE__*/ makeMap(
    // event propagation management
  `stop,prevent,self,`   +
        // system modifiers + exact
        `ctrl,shift,alt,meta,exact,` +
        // mouse
        `middle`);
    // left & right could be mouse or key modifiers based on event type
    const maybeKeyModifier = /*#__PURE__*/ makeMap('left,right');
    const isKeyboardEvent = /*#__PURE__*/ makeMap(`onkeyup,onkeydown,onkeypress`, true);
    const resolveModifiers = (key, modifiers, context, loc) => {
        const keyModifiers = [];
        const nonKeyModifiers = [];
        const eventOptionModifiers = [];
        for (let i = 0; i < modifiers.length; i++) {
            const modifier = modifiers[i];
            if (isEventOptionModifier(modifier)) {
                // eventOptionModifiers: modifiers for addEventListener() options,
                // e.g. .passive & .capture
                eventOptionModifiers.push(modifier);
            }
            else {
                // runtimeModifiers: modifiers that needs runtime guards
                if (maybeKeyModifier(modifier)) {
                    if (isStaticExp(key)) {
                        if (isKeyboardEvent(key.content)) {
                            keyModifiers.push(modifier);
                        }
                        else {
                            nonKeyModifiers.push(modifier);
                        }
                    }
                    else {
                        keyModifiers.push(modifier);
                        nonKeyModifiers.push(modifier);
                    }
                }
                else {
                    if (isNonKeyModifier(modifier)) {
                        nonKeyModifiers.push(modifier);
                    }
                    else {
                        keyModifiers.push(modifier);
                    }
                }
            }
        }
        return {
            keyModifiers,
            nonKeyModifiers,
            eventOptionModifiers
        };
    };
    const transformClick = (key, event) => {
        const isStaticClick = isStaticExp(key) && key.content.toLowerCase() === 'onclick';
        return isStaticClick
            ? createSimpleExpression(event, true)
            : key.type !== 4 /* NodeTypes.SIMPLE_EXPRESSION */
                ? createCompoundExpression([
                    `(`,
                    key,
                    `) === "onClick" ? "${event}" : (`,
                    key,
                    `)`
                ])
                : key;
    };
    const transformOn = (dir, node, context) => {
        return transformOn$1(dir, node, context, baseResult => {
            const { modifiers } = dir;
            if (!modifiers.length)
                return baseResult;
            let { key, value: handlerExp } = baseResult.props[0];
            const { keyModifiers, nonKeyModifiers, eventOptionModifiers } = resolveModifiers(key, modifiers, context, dir.loc);
            // normalize click.right and click.middle since they don't actually fire
            if (nonKeyModifiers.includes('right')) {
                key = transformClick(key, `onContextmenu`);
            }
            if (nonKeyModifiers.includes('middle')) {
                key = transformClick(key, `onMouseup`);
            }
            if (nonKeyModifiers.length) {
                handlerExp = createCallExpression(context.helper(V_ON_WITH_MODIFIERS), [
                    handlerExp,
                    JSON.stringify(nonKeyModifiers)
                ]);
            }
            if (keyModifiers.length &&
                // if event name is dynamic, always wrap with keys guard
                (!isStaticExp(key) || isKeyboardEvent(key.content))) {
                handlerExp = createCallExpression(context.helper(V_ON_WITH_KEYS), [
                    handlerExp,
                    JSON.stringify(keyModifiers)
                ]);
            }
            if (eventOptionModifiers.length) {
                const modifierPostfix = eventOptionModifiers.map(capitalize).join('');
                key = isStaticExp(key)
                    ? createSimpleExpression(`${key.content}${modifierPostfix}`, true)
                    : createCompoundExpression([`(`, key, `) + "${modifierPostfix}"`]);
            }
            return {
                props: [createObjectProperty(key, handlerExp)]
            };
        });
    };
  
    const transformShow = (dir, node, context) => {
        const { exp, loc } = dir;
        if (!exp) {
            context.onError(createDOMCompilerError(59 /* DOMErrorCodes.X_V_SHOW_NO_EXPRESSION */, loc));
        }
        return {
            props: [],
            needRuntime: context.helper(V_SHOW)
        };
    };
  
    const transformTransition = (node, context) => {
        if (node.type === 1 /* NodeTypes.ELEMENT */ &&
            node.tagType === 1 /* ElementTypes.COMPONENT */) {
            const component = context.isBuiltInComponent(node.tag);
            if (component === TRANSITION) {
                return () => {
                    if (!node.children.length) {
                        return;
                    }
                    // warn multiple transition children
                    if (hasMultipleChildren(node)) {
                        context.onError(createDOMCompilerError(60 /* DOMErrorCodes.X_TRANSITION_INVALID_CHILDREN */, {
                            start: node.children[0].loc.start,
                            end: node.children[node.children.length - 1].loc.end,
                            source: ''
                        }));
                    }
                    // check if it's s single child w/ v-show
                    // if yes, inject "persisted: true" to the transition props
                    const child = node.children[0];
                    if (child.type === 1 /* NodeTypes.ELEMENT */) {
                        for (const p of child.props) {
                            if (p.type === 7 /* NodeTypes.DIRECTIVE */ && p.name === 'show') {
                                node.props.push({
                                    type: 6 /* NodeTypes.ATTRIBUTE */,
                                    name: 'persisted',
                                    value: undefined,
                                    loc: node.loc
                                });
                            }
                        }
                    }
                };
            }
        }
    };
    function hasMultipleChildren(node) {
        // #1352 filter out potential comment nodes.
        const children = (node.children = node.children.filter(c => c.type !== 3 /* NodeTypes.COMMENT */ &&
            !(c.type === 2 /* NodeTypes.TEXT */ && !c.content.trim())));
        const child = children[0];
        return (children.length !== 1 ||
            child.type === 11 /* NodeTypes.FOR */ ||
            (child.type === 9 /* NodeTypes.IF */ && child.branches.some(hasMultipleChildren)));
    }
  
    const ignoreSideEffectTags = (node, context) => {
        if (node.type === 1 /* NodeTypes.ELEMENT */ &&
            node.tagType === 0 /* ElementTypes.ELEMENT */ &&
            (node.tag === 'script' || node.tag === 'style')) {
            context.onError(createDOMCompilerError(61 /* DOMErrorCodes.X_IGNORED_SIDE_EFFECT_TAG */, node.loc));
            context.removeNode();
        }
    };
  
    const DOMNodeTransforms = [
        transformStyle,
        ...([transformTransition] )
    ];
    const DOMDirectiveTransforms = {
        cloak: noopDirectiveTransform,
        html: transformVHtml,
        text: transformVText,
        model: transformModel,
        on: transformOn,
        show: transformShow
    };
    function compile(template, options = {}) {
        return baseCompile(template, extend({}, parserOptions, options, {
            nodeTransforms: [
                // ignore <script> and <tag>
                // this is not put inside DOMNodeTransforms because that list is used
                // by compiler-ssr to generate vnode fallback branches
                ignoreSideEffectTags,
                ...DOMNodeTransforms,
                ...(options.nodeTransforms || [])
            ],
            directiveTransforms: extend({}, DOMDirectiveTransforms, options.directiveTransforms || {}),
            transformHoist: null 
        }));
    }
  
    // This entry is the "full-build" that includes both the runtime
    {
        initDev();
    }
    const compileCache = Object.create(null);
    function compileToFunction(template, options) {
        if (!isString(template)) {
            if (template.nodeType) {
                template = template.innerHTML;
            }
            else {
                warn(`invalid template option: `, template);
                return NOOP;
            }
        }
        const key = template;
        const cached = compileCache[key];
        if (cached) {
            return cached;
        }
        if (template[0] === '#') {
            const el = document.querySelector(template);
            if (!el) {
                warn(`Template element not found or is empty: ${template}`);
            }
            // __UNSAFE__
            // Reason: potential execution of JS expressions in in-DOM template.
            // The user must make sure the in-DOM template is trusted. If it's rendered
            // by the server, the template should not contain any user data.
            template = el ? el.innerHTML : ``;
        }
        const opts = extend({
            hoistStatic: true,
            onError: onError ,
            onWarn: e => onError(e, true) 
        }, options);
        if (!opts.isCustomElement && typeof customElements !== 'undefined') {
            opts.isCustomElement = tag => !!customElements.get(tag);
        }
        const { code } = compile(template, opts);
        function onError(err, asWarning = false) {
            const message = asWarning
                ? err.message
                : `Template compilation error: ${err.message}`;
            const codeFrame = err.loc &&
                generateCodeFrame(template, err.loc.start.offset, err.loc.end.offset);
            warn(codeFrame ? `${message}\n${codeFrame}` : message);
        }
        // The wildcard import results in a huge object with every export
        // with keys that cannot be mangled, and can be quite heavy size-wise.
        // In the global build we know `Vue` is available globally so we can avoid
        // the wildcard object.
        const render = (new Function(code)() );
        render._rc = true;
        return (compileCache[key] = render);
    }
    registerRuntimeCompiler(compileToFunction);
  
    exports.BaseTransition = BaseTransition;
    exports.Comment = Comment;
    exports.EffectScope = EffectScope;
    exports.Fragment = Fragment;
    exports.KeepAlive = KeepAlive;
    exports.ReactiveEffect = ReactiveEffect;
    exports.Static = Static;
    exports.Suspense = Suspense;
    exports.Teleport = Teleport;
    exports.Text = Text;
    exports.Transition = Transition;
    exports.TransitionGroup = TransitionGroup;
    exports.VueElement = VueElement;
    exports.assertNumber = assertNumber;
    exports.callWithAsyncErrorHandling = callWithAsyncErrorHandling;
    exports.callWithErrorHandling = callWithErrorHandling;
    exports.camelize = camelize;
    exports.capitalize = capitalize;
    exports.cloneVNode = cloneVNode;
    exports.compatUtils = compatUtils;
    exports.compile = compileToFunction;
    exports.computed = computed;
    exports.createApp = createApp;
    exports.createBlock = createBlock;
    exports.createCommentVNode = createCommentVNode;
    exports.createElementBlock = createElementBlock;
    exports.createElementVNode = createBaseVNode;
    exports.createHydrationRenderer = createHydrationRenderer;
    exports.createPropsRestProxy = createPropsRestProxy;
    exports.createRenderer = createRenderer;
    exports.createSSRApp = createSSRApp;
    exports.createSlots = createSlots;
    exports.createStaticVNode = createStaticVNode;
    exports.createTextVNode = createTextVNode;
    exports.createVNode = createVNode;
    exports.customRef = customRef;
    exports.defineAsyncComponent = defineAsyncComponent;
    exports.defineComponent = defineComponent;
    exports.defineCustomElement = defineCustomElement;
    exports.defineEmits = defineEmits;
    exports.defineExpose = defineExpose;
    exports.defineProps = defineProps;
    exports.defineSSRCustomElement = defineSSRCustomElement;
    exports.effect = effect;
    exports.effectScope = effectScope;
    exports.getCurrentInstance = getCurrentInstance;
    exports.getCurrentScope = getCurrentScope;
    exports.getTransitionRawChildren = getTransitionRawChildren;
    exports.guardReactiveProps = guardReactiveProps;
    exports.h = h;
    exports.handleError = handleError;
    exports.hydrate = hydrate;
    exports.initCustomFormatter = initCustomFormatter;
    exports.initDirectivesForSSR = initDirectivesForSSR;
    exports.inject = inject;
    exports.isMemoSame = isMemoSame;
    exports.isProxy = isProxy;
    exports.isReactive = isReactive;
    exports.isReadonly = isReadonly;
    exports.isRef = isRef;
    exports.isRuntimeOnly = isRuntimeOnly;
    exports.isShallow = isShallow;
    exports.isVNode = isVNode;
    exports.markRaw = markRaw;
    exports.mergeDefaults = mergeDefaults;
    exports.mergeProps = mergeProps;
    exports.nextTick = nextTick;
    exports.normalizeClass = normalizeClass;
    exports.normalizeProps = normalizeProps;
    exports.normalizeStyle = normalizeStyle;
    exports.onActivated = onActivated;
    exports.onBeforeMount = onBeforeMount;
    exports.onBeforeUnmount = onBeforeUnmount;
    exports.onBeforeUpdate = onBeforeUpdate;
    exports.onDeactivated = onDeactivated;
    exports.onErrorCaptured = onErrorCaptured;
    exports.onMounted = onMounted;
    exports.onRenderTracked = onRenderTracked;
    exports.onRenderTriggered = onRenderTriggered;
    exports.onScopeDispose = onScopeDispose;
    exports.onServerPrefetch = onServerPrefetch;
    exports.onUnmounted = onUnmounted;
    exports.onUpdated = onUpdated;
    exports.openBlock = openBlock;
    exports.popScopeId = popScopeId;
    exports.provide = provide;
    exports.proxyRefs = proxyRefs;
    exports.pushScopeId = pushScopeId;
    exports.queuePostFlushCb = queuePostFlushCb;
    exports.reactive = reactive;
    exports.readonly = readonly;
    exports.ref = ref;
    exports.registerRuntimeCompiler = registerRuntimeCompiler;
    exports.render = render;
    exports.renderList = renderList;
    exports.renderSlot = renderSlot;
    exports.resolveComponent = resolveComponent;
    exports.resolveDirective = resolveDirective;
    exports.resolveDynamicComponent = resolveDynamicComponent;
    exports.resolveFilter = resolveFilter;
    exports.resolveTransitionHooks = resolveTransitionHooks;
    exports.setBlockTracking = setBlockTracking;
    exports.setDevtoolsHook = setDevtoolsHook;
    exports.setTransitionHooks = setTransitionHooks;
    exports.shallowReactive = shallowReactive;
    exports.shallowReadonly = shallowReadonly;
    exports.shallowRef = shallowRef;
    exports.ssrContextKey = ssrContextKey;
    exports.ssrUtils = ssrUtils;
    exports.stop = stop;
    exports.toDisplayString = toDisplayString;
    exports.toHandlerKey = toHandlerKey;
    exports.toHandlers = toHandlers;
    exports.toRaw = toRaw;
    exports.toRef = toRef;
    exports.toRefs = toRefs;
    exports.transformVNodeArgs = transformVNodeArgs;
    exports.triggerRef = triggerRef;
    exports.unref = unref;
    exports.useAttrs = useAttrs;
    exports.useCssModule = useCssModule;
    exports.useCssVars = useCssVars;
    exports.useSSRContext = useSSRContext;
    exports.useSlots = useSlots;
    exports.useTransitionState = useTransitionState;
    exports.vModelCheckbox = vModelCheckbox;
    exports.vModelDynamic = vModelDynamic;
    exports.vModelRadio = vModelRadio;
    exports.vModelSelect = vModelSelect;
    exports.vModelText = vModelText;
    exports.vShow = vShow;
    exports.version = version;
    exports.warn = warn;
    exports.watch = watch;
    exports.watchEffect = watchEffect;
    exports.watchPostEffect = watchPostEffect;
    exports.watchSyncEffect = watchSyncEffect;
    exports.withAsyncContext = withAsyncContext;
    exports.withCtx = withCtx;
    exports.withDefaults = withDefaults;
    exports.withDirectives = withDirectives;
    exports.withKeys = withKeys;
    exports.withMemo = withMemo;
    exports.withModifiers = withModifiers;
    exports.withScopeId = withScopeId;
  
    Object.defineProperty(exports, '__esModule', { value: true });
  
    return exports;
  
  })({});