'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var reactivity = require('@vue/reactivity');
var shared = require('@vue/shared');

const stack = [];
function warn(msg, ...args) {
    // avoid props formatting or warn handler tracking deps that might be mutated
    // during patch, leading to infinite recursion.
    reactivity.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 /* 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]: ${msg}`, ...args];
        /* istanbul ignore if */
        if (trace.length &&
            // avoid spamming console during tests
            !false) {
            warnArgs.push(`\n`, ...formatTrace(trace));
        }
        console.warn(...warnArgs);
    }
    reactivity.resetTracking();
}
function getComponentTrace() {
    let currentVNode = stack[stack.length - 1];
    if (!currentVNode) {
        return [];
    }
    // we can't just use the stack because it will be incomplete during updates
    // that did not start from the root. Re-construct the parent chain using
    // instance parent pointers.
    const normalizedStack = [];
    while (currentVNode) {
        const last = normalizedStack[0];
        if (last && last.vnode === currentVNode) {
            last.recurseCount++;
        }
        else {
            normalizedStack.push({
                vnode: currentVNode,
                recurseCount: 0
            });
        }
        const parentInstance = currentVNode.component && currentVNode.component.parent;
        currentVNode = parentInstance && parentInstance.vnode;
    }
    return normalizedStack;
}
/* istanbul ignore next */
function formatTrace(trace) {
    const logs = [];
    trace.forEach((entry, i) => {
        logs.push(...(i === 0 ? [] : [`\n`]), ...formatTraceEntry(entry));
    });
    return logs;
}
function formatTraceEntry({ vnode, recurseCount }) {
    const postfix = recurseCount > 0 ? `... (${recurseCount} recursive calls)` : ``;
    const isRoot = vnode.component ? vnode.component.parent == null : false;
    const open = ` at <${formatComponentName(vnode.component, vnode.type, isRoot)}`;
    const close = `>` + postfix;
    return vnode.props
        ? [open, ...formatProps(vnode.props), close]
        : [open + close];
}
/* istanbul ignore next */
function formatProps(props) {
    const res = [];
    const keys = Object.keys(props);
    keys.slice(0, 3).forEach(key => {
        res.push(...formatProp(key, props[key]));
    });
    if (keys.length > 3) {
        res.push(` ...`);
    }
    return res;
}
/* istanbul ignore next */
function formatProp(key, value, raw) {
    if (shared.isString(value)) {
        value = JSON.stringify(value);
        return raw ? value : [`${key}=${value}`];
    }
    else if (typeof value === 'number' ||
        typeof value === 'boolean' ||
        value == null) {
        return raw ? value : [`${key}=${value}`];
    }
    else if (reactivity.isRef(value)) {
        value = formatProp(key, reactivity.toRaw(value.value), true);
        return raw ? value : [`${key}=Ref<`, value, `>`];
    }
    else if (shared.isFunction(value)) {
        return [`${key}=fn${value.name ? `<${value.name}>` : ``}`];
    }
    else {
        value = reactivity.toRaw(value);
        return raw ? value : [`${key}=`, value];
    }
}

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 (shared.isFunction(fn)) {
        const res = callWithErrorHandling(fn, instance, type, args);
        if (res && shared.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 = 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 /* APP_ERROR_HANDLER */, [err, exposedInstance, errorInfo]);
            return;
        }
    }
    logError(err, type, contextVNode, throwInDev);
}
function logError(err, type, contextVNode, throwInDev = true) {
    {
        // recover in prod to reduce the impact on end-user
        console.error(err);
    }
}

let isFlushing = false;
let isFlushPending = false;
const queue = [];
let flushIndex = 0;
const pendingPreFlushCbs = [];
let activePreFlushCbs = null;
let preFlushIndex = 0;
const pendingPostFlushCbs = [];
let activePostFlushCbs = null;
let postFlushIndex = 0;
const resolvedPromise = Promise.resolve();
let currentFlushPromise = null;
let currentPreFlushParentJob = null;
const RECURSION_LIMIT = 100;
function nextTick(fn) {
    const p = currentFlushPromise || resolvedPromise;
    return fn ? p.then(this ? fn.bind(this) : fn) : p;
}
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)) &&
        job !== currentPreFlushParentJob) {
        queue.push(job);
        queueFlush();
    }
}
function queueFlush() {
    if (!isFlushing && !isFlushPending) {
        isFlushPending = true;
        currentFlushPromise = resolvedPromise.then(flushJobs);
    }
}
function invalidateJob(job) {
    const i = queue.indexOf(job);
    if (i > -1) {
        queue.splice(i, 1);
    }
}
function queueCb(cb, activeQueue, pendingQueue, index) {
    if (!shared.isArray(cb)) {
        if (!activeQueue ||
            !activeQueue.includes(cb, cb.allowRecurse ? index + 1 : index)) {
            pendingQueue.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
        pendingQueue.push(...cb);
    }
    queueFlush();
}
function queuePreFlushCb(cb) {
    queueCb(cb, activePreFlushCbs, pendingPreFlushCbs, preFlushIndex);
}
function queuePostFlushCb(cb) {
    queueCb(cb, activePostFlushCbs, pendingPostFlushCbs, postFlushIndex);
}
function flushPreFlushCbs(seen, parentJob = null) {
    if (pendingPreFlushCbs.length) {
        currentPreFlushParentJob = parentJob;
        activePreFlushCbs = [...new Set(pendingPreFlushCbs)];
        pendingPreFlushCbs.length = 0;
        for (preFlushIndex = 0; preFlushIndex < activePreFlushCbs.length; preFlushIndex++) {
            activePreFlushCbs[preFlushIndex]();
        }
        activePreFlushCbs = null;
        preFlushIndex = 0;
        currentPreFlushParentJob = null;
        // recursively flush until it drains
        flushPreFlushCbs(seen, parentJob);
    }
}
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;
        activePostFlushCbs.sort((a, b) => getId(a) - getId(b));
        for (postFlushIndex = 0; postFlushIndex < activePostFlushCbs.length; postFlushIndex++) {
            activePostFlushCbs[postFlushIndex]();
        }
        activePostFlushCbs = null;
        postFlushIndex = 0;
    }
}
const getId = (job) => job.id == null ? Infinity : job.id;
function flushJobs(seen) {
    isFlushPending = false;
    isFlushing = true;
    flushPreFlushCbs(seen);
    // 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((a, b) => getId(a) - getId(b));
    try {
        for (flushIndex = 0; flushIndex < queue.length; flushIndex++) {
            const job = queue[flushIndex];
            if (job) {
                if (false) ;
                callWithErrorHandling(job, null, 14 /* SCHEDULER */);
            }
        }
    }
    finally {
        flushIndex = 0;
        queue.length = 0;
        flushPostFlushCbs();
        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) {
            throw new Error(`Maximum recursive updates exceeded. ` +
                `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.`);
        }
        else {
            seen.set(fn, count + 1);
        }
    }
}

exports.devtools = void 0;
function setDevtoolsHook(hook) {
    exports.devtools = hook;
}

function emit(instance, event, ...rawArgs) {
    const props = instance.vnode.props || shared.EMPTY_OBJ;
    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] || shared.EMPTY_OBJ;
        if (trim) {
            args = rawArgs.map(a => a.trim());
        }
        else if (number) {
            args = rawArgs.map(shared.toNumber);
        }
    }
    // convert handler name to camelCase. See issue #2249
    let handlerName = shared.toHandlerKey(shared.camelize(event));
    let handler = props[handlerName];
    // for v-model update:xxx events, also trigger kebab-case equivalent
    // for props passed via kebab-case
    if (!handler && isModelListener) {
        handlerName = shared.toHandlerKey(shared.hyphenate(event));
        handler = props[handlerName];
    }
    if (handler) {
        callWithAsyncErrorHandling(handler, instance, 6 /* COMPONENT_EVENT_HANDLER */, args);
    }
    const onceHandler = props[handlerName + `Once`];
    if (onceHandler) {
        if (!instance.emitted) {
            (instance.emitted = {})[handlerName] = true;
        }
        else if (instance.emitted[handlerName]) {
            return;
        }
        callWithAsyncErrorHandling(onceHandler, instance, 6 /* COMPONENT_EVENT_HANDLER */, args);
    }
}
function normalizeEmitsOptions(comp, appContext, asMixin = false) {
    if (!appContext.deopt && comp.__emits !== undefined) {
        return comp.__emits;
    }
    const raw = comp.emits;
    let normalized = {};
    // apply mixin/extends props
    let hasExtends = false;
    if (!shared.isFunction(comp)) {
        const extendEmits = (raw) => {
            hasExtends = true;
            shared.extend(normalized, normalizeEmitsOptions(raw, appContext, true));
        };
        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) {
        return (comp.__emits = null);
    }
    if (shared.isArray(raw)) {
        raw.forEach(key => (normalized[key] = null));
    }
    else {
        shared.extend(normalized, raw);
    }
    return (comp.__emits = 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 || !shared.isOn(key)) {
        return false;
    }
    key = key.slice(2).replace(/Once$/, '');
    return (shared.hasOwn(options, key[0].toLowerCase() + key.slice(1)) ||
        shared.hasOwn(options, shared.hyphenate(key)) ||
        shared.hasOwn(options, key));
}

/**
 * mark the current rendering instance for asset resolution (e.g.
 * resolveComponent, resolveDirective) during render
 */
let currentRenderingInstance = null;
function setCurrentRenderingInstance(instance) {
    currentRenderingInstance = instance;
}
/**
 * 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 } = instance;
    let result;
    currentRenderingInstance = instance;
    try {
        let fallthroughAttrs;
        if (vnode.shapeFlag & 4 /* 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 (false && attrs === props) ;
            result = normalizeVNode(render.length > 1
                ? render(props, false
                    ? {
                        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);
        }
        // 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 (false &&
            result.patchFlag > 0 &&
            result.patchFlag & 2048 /* DEV_ROOT_FRAGMENT */) ;
        if (Component.inheritAttrs !== false && fallthroughAttrs) {
            const keys = Object.keys(fallthroughAttrs);
            const { shapeFlag } = root;
            if (keys.length) {
                if (shapeFlag & 1 /* ELEMENT */ ||
                    shapeFlag & 6 /* COMPONENT */) {
                    if (propsOptions && keys.some(shared.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 (false && !accessedAttrs && root.type !== Comment) ;
            }
        }
        // inherit directives
        if (vnode.dirs) {
            if (false && !isElementRoot(root)) ;
            root.dirs = root.dirs ? root.dirs.concat(vnode.dirs) : vnode.dirs;
        }
        // inherit transition data
        if (vnode.transition) {
            if (false && !isElementRoot(root)) ;
            root.transition = vnode.transition;
        }
        if (false && setRoot) ;
        else {
            result = root;
        }
    }
    catch (err) {
        handleError(err, instance, 1 /* RENDER_FUNCTION */);
        result = createVNode(Comment);
    }
    currentRenderingInstance = null;
    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' || shared.isOn(key)) {
            (res || (res = {}))[key] = attrs[key];
        }
    }
    return res;
};
const filterModelListeners = (attrs, props) => {
    const res = {};
    for (const key in attrs) {
        if (!shared.isModelListener(key) || !(key.slice(9) in props)) {
            res[key] = attrs[key];
        }
    }
    return res;
};
const isElementRoot = (vnode) => {
    return (vnode.shapeFlag & 6 /* COMPONENT */ ||
        vnode.shapeFlag & 1 /* 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;
    // 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 /* DYNAMIC_SLOTS */) {
            // slot content that references values that might have changed,
            // e.g. in a v-for
            return true;
        }
        if (patchFlag & 16 /* 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 /* 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 = {
    // 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, optimized, 
    // platform-specific impl passed from renderer
    rendererInternals) {
        if (n1 == null) {
            mountSuspense(n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, rendererInternals);
        }
        else {
            patchSuspense(n1, n2, container, anchor, parentComponent, isSVG, rendererInternals);
        }
    },
    hydrate: hydrateSuspense,
    create: createSuspenseBoundary
};
// Force-casted public typing for h and TSX props inference
const Suspense = (SuspenseImpl
    );
function mountSuspense(vnode, container, anchor, parentComponent, parentSuspense, isSVG, optimized, rendererInternals) {
    const { p: patch, o: { createElement } } = rendererInternals;
    const hiddenContainer = createElement('div');
    const suspense = (vnode.suspense = createSuspenseBoundary(vnode, parentSuspense, parentComponent, container, hiddenContainer, anchor, isSVG, optimized, rendererInternals));
    // start mounting the content subtree in an off-dom container
    patch(null, (suspense.pendingBranch = vnode.ssContent), hiddenContainer, null, parentComponent, suspense, isSVG);
    // now check if we have encountered any async deps
    if (suspense.deps > 0) {
        // has async
        // mount the fallback tree
        patch(null, vnode.ssFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context
        isSVG);
        setActiveBranch(suspense, vnode.ssFallback);
    }
    else {
        // Suspense has no async deps. Just resolve.
        suspense.resolve();
    }
}
function patchSuspense(n1, n2, container, anchor, parentComponent, isSVG, { 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);
            if (suspense.deps <= 0) {
                suspense.resolve();
            }
            else if (isInFallback) {
                patch(activeBranch, newFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context
                isSVG);
                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);
                if (suspense.deps <= 0) {
                    suspense.resolve();
                }
                else {
                    patch(activeBranch, newFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context
                    isSVG);
                    setActiveBranch(suspense, newFallback);
                }
            }
            else if (activeBranch && isSameVNodeType(newBranch, activeBranch)) {
                // toggled "back" to current active branch
                patch(activeBranch, newBranch, container, anchor, parentComponent, suspense, isSVG);
                // force resolve
                suspense.resolve(true);
            }
            else {
                // switched to a 3rd branch
                patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG);
                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);
            setActiveBranch(suspense, newBranch);
        }
        else {
            // root node toggled
            // invoke @pending event
            const onPending = n2.props && n2.props.onPending;
            if (shared.isFunction(onPending)) {
                onPending();
            }
            // mount pending branch in off-dom container
            suspense.pendingBranch = newBranch;
            suspense.pendingId++;
            patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG);
            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);
                }
            }
        }
    }
}
function createSuspenseBoundary(vnode, parent, parentComponent, container, hiddenContainer, anchor, isSVG, optimized, rendererInternals, isHydrating = false) {
    const { p: patch, m: move, um: unmount, n: next, o: { parentNode, remove } } = rendererInternals;
    const timeout = shared.toNumber(vnode.props && vnode.props.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) {
            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 /* 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 /* 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
            const onResolve = vnode.props && vnode.props.onResolve;
            if (shared.isFunction(onResolve)) {
                onResolve();
            }
        },
        fallback(fallbackVNode) {
            if (!suspense.pendingBranch) {
                return;
            }
            const { vnode, activeBranch, parentComponent, container, isSVG } = suspense;
            // invoke @fallback event
            const onFallback = vnode.props && vnode.props.onFallback;
            if (shared.isFunction(onFallback)) {
                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);
                setActiveBranch(suspense, fallbackVNode);
            };
            const delayEnter = fallbackVNode.transition && fallbackVNode.transition.mode === 'out-in';
            if (delayEnter) {
                activeBranch.transition.afterLeave = mountFallback;
            }
            // unmount current active branch
            unmount(activeBranch, parentComponent, null, // no suspense so unmount hooks fire now
            true // shouldRemove
            );
            suspense.isInFallback = true;
            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 /* 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;
                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);
                // 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, optimized, rendererInternals, hydrateNode) {
    /* eslint-disable no-restricted-globals */
    const suspense = (vnode.suspense = createSuspenseBoundary(vnode, parentSuspense, parentComponent, node.parentNode, document.createElement('div'), null, isSVG, 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, optimized);
    if (suspense.deps === 0) {
        suspense.resolve();
    }
    return result;
    /* eslint-enable no-restricted-globals */
}
function normalizeSuspenseChildren(vnode) {
    const { shapeFlag, children } = vnode;
    let content;
    let fallback;
    if (shapeFlag & 32 /* SLOTS_CHILDREN */) {
        content = normalizeSuspenseSlot(children.default);
        fallback = normalizeSuspenseSlot(children.fallback);
    }
    else {
        content = normalizeSuspenseSlot(children);
        fallback = normalizeVNode(null);
    }
    return {
        content,
        fallback
    };
}
function normalizeSuspenseSlot(s) {
    if (shared.isFunction(s)) {
        s = s();
    }
    if (shared.isArray(s)) {
        const singleChild = filterSingleRoot(s);
        s = singleChild;
    }
    return normalizeVNode(s);
}
function queueEffectWithSuspense(fn, suspense) {
    if (suspense && suspense.pendingBranch) {
        if (shared.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);
    }
}

let isRenderingCompiledSlot = 0;
const setCompiledSlotRendering = (n) => (isRenderingCompiledSlot += n);
/**
 * 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) {
    let slot = slots[name];
    // 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.
    isRenderingCompiledSlot++;
    openBlock();
    const validSlotContent = slot && ensureValidVNode(slot(props));
    const rendered = createBlock(Fragment, { key: props.key || `_${name}` }, validSlotContent || (fallback ? fallback() : []), validSlotContent && slots._ === 1 /* STABLE */
        ? 64 /* STABLE_FRAGMENT */
        : -2 /* BAIL */);
    isRenderingCompiledSlot--;
    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;
}

/**
 * Wrap a slot function to memoize current rendering instance
 * @private
 */
function withCtx(fn, ctx = currentRenderingInstance) {
    if (!ctx)
        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 need to push a null block to
        // avoid that. This isn't necessary if rendering a compiled `<slot>`.
        if (!isRenderingCompiledSlot) {
            openBlock(true /* null block that disables tracking */);
        }
        const owner = currentRenderingInstance;
        setCurrentRenderingInstance(ctx);
        const res = fn(...args);
        setCurrentRenderingInstance(owner);
        if (!isRenderingCompiledSlot) {
            closeBlock();
        }
        return res;
    };
    renderFnWithContext._c = true;
    return renderFnWithContext;
}

// SFC scoped style ID management.
let currentScopeId = null;
const scopeIdStack = [];
/**
 * @private
 */
function pushScopeId(id) {
    scopeIdStack.push((currentScopeId = id));
}
/**
 * @private
 */
function popScopeId() {
    scopeIdStack.pop();
    currentScopeId = scopeIdStack[scopeIdStack.length - 1] || null;
}
/**
 * @private
 */
function withScopeId(id) {
    return ((fn) => withCtx(function () {
        pushScopeId(id);
        const res = fn.apply(this, arguments);
        popScopeId();
        return res;
    }));
}

function initProps(instance, rawProps, isStateful, // result of bitwise flag comparison
isSSR = false) {
    const props = {};
    const attrs = {};
    shared.def(attrs, InternalObjectKey, 1);
    setFullProps(instance, rawProps, props, attrs);
    if (isStateful) {
        // stateful
        instance.props = isSSR ? props : reactivity.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 updateProps(instance, rawProps, rawPrevProps, optimized) {
    const { props, attrs, vnode: { patchFlag } } = instance;
    const rawCurrentProps = reactivity.toRaw(props);
    const [options] = instance.propsOptions;
    if (
    // always force full diff in dev
    // - #1942 if hmr is enabled with sfc component
    // - vite#872 non-sfc component used by sfc component
    (optimized || patchFlag > 0) &&
        !(patchFlag & 16 /* FULL_PROPS */)) {
        if (patchFlag & 8 /* 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++) {
                const key = propsToUpdate[i];
                // 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 (shared.hasOwn(attrs, key)) {
                        attrs[key] = value;
                    }
                    else {
                        const camelizedKey = shared.camelize(key);
                        props[camelizedKey] = resolvePropValue(options, rawCurrentProps, camelizedKey, value, instance);
                    }
                }
                else {
                    attrs[key] = value;
                }
            }
        }
    }
    else {
        // full props update.
        setFullProps(instance, rawProps, props, attrs);
        // 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
                (!shared.hasOwn(rawProps, key) &&
                    // it's possible the original props was passed in as kebab-case
                    // and converted to camelCase (#955)
                    ((kebabKey = shared.hyphenate(key)) === key || !shared.hasOwn(rawProps, kebabKey)))) {
                if (options) {
                    if (rawPrevProps &&
                        // for camelCase
                        (rawPrevProps[key] !== undefined ||
                            // for kebab-case
                            rawPrevProps[kebabKey] !== undefined)) {
                        props[key] = resolvePropValue(options, rawProps || shared.EMPTY_OBJ, key, undefined, instance);
                    }
                }
                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 || !shared.hasOwn(rawProps, key)) {
                    delete attrs[key];
                }
            }
        }
    }
    // trigger updates for $attrs in case it's used in component slots
    reactivity.trigger(instance, "set" /* SET */, '$attrs');
}
function setFullProps(instance, rawProps, props, attrs) {
    const [options, needCastKeys] = instance.propsOptions;
    if (rawProps) {
        for (const key in rawProps) {
            const value = rawProps[key];
            // key, ref are reserved and never passed down
            if (shared.isReservedProp(key)) {
                continue;
            }
            // prop option names are camelized during normalization, so to support
            // kebab -> camel conversion here we need to camelize the key.
            let camelKey;
            if (options && shared.hasOwn(options, (camelKey = shared.camelize(key)))) {
                props[camelKey] = value;
            }
            else if (!isEmitListener(instance.emitsOptions, key)) {
                // Any non-declared (either as a prop or an emitted event) props are put
                // into a separate `attrs` object for spreading. Make sure to preserve
                // original key casing
                attrs[key] = value;
            }
        }
    }
    if (needCastKeys) {
        const rawCurrentProps = reactivity.toRaw(props);
        for (let i = 0; i < needCastKeys.length; i++) {
            const key = needCastKeys[i];
            props[key] = resolvePropValue(options, rawCurrentProps, key, rawCurrentProps[key], instance);
        }
    }
}
function resolvePropValue(options, props, key, value, instance) {
    const opt = options[key];
    if (opt != null) {
        const hasDefault = shared.hasOwn(opt, 'default');
        // default values
        if (hasDefault && value === undefined) {
            const defaultValue = opt.default;
            if (opt.type !== Function && shared.isFunction(defaultValue)) {
                setCurrentInstance(instance);
                value = defaultValue(props);
                setCurrentInstance(null);
            }
            else {
                value = defaultValue;
            }
        }
        // boolean casting
        if (opt[0 /* shouldCast */]) {
            if (!shared.hasOwn(props, key) && !hasDefault) {
                value = false;
            }
            else if (opt[1 /* shouldCastTrue */] &&
                (value === '' || value === shared.hyphenate(key))) {
                value = true;
            }
        }
    }
    return value;
}
function normalizePropsOptions(comp, appContext, asMixin = false) {
    if (!appContext.deopt && comp.__props) {
        return comp.__props;
    }
    const raw = comp.props;
    const normalized = {};
    const needCastKeys = [];
    // apply mixin/extends props
    let hasExtends = false;
    if (!shared.isFunction(comp)) {
        const extendProps = (raw) => {
            hasExtends = true;
            const [props, keys] = normalizePropsOptions(raw, appContext, true);
            shared.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) {
        return (comp.__props = shared.EMPTY_ARR);
    }
    if (shared.isArray(raw)) {
        for (let i = 0; i < raw.length; i++) {
            const normalizedKey = shared.camelize(raw[i]);
            if (validatePropName(normalizedKey)) {
                normalized[normalizedKey] = shared.EMPTY_OBJ;
            }
        }
    }
    else if (raw) {
        for (const key in raw) {
            const normalizedKey = shared.camelize(key);
            if (validatePropName(normalizedKey)) {
                const opt = raw[key];
                const prop = (normalized[normalizedKey] =
                    shared.isArray(opt) || shared.isFunction(opt) ? { type: opt } : opt);
                if (prop) {
                    const booleanIndex = getTypeIndex(Boolean, prop.type);
                    const stringIndex = getTypeIndex(String, prop.type);
                    prop[0 /* shouldCast */] = booleanIndex > -1;
                    prop[1 /* shouldCastTrue */] =
                        stringIndex < 0 || booleanIndex < stringIndex;
                    // if the prop needs boolean casting or default value
                    if (booleanIndex > -1 || shared.hasOwn(prop, 'default')) {
                        needCastKeys.push(normalizedKey);
                    }
                }
            }
        }
    }
    return (comp.__props = [normalized, needCastKeys]);
}
function validatePropName(key) {
    if (key[0] !== '$') {
        return true;
    }
    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 (\w+)/);
    return match ? match[1] : '';
}
function isSameType(a, b) {
    return getType(a) === getType(b);
}
function getTypeIndex(type, expectedTypes) {
    if (shared.isArray(expectedTypes)) {
        for (let i = 0, len = expectedTypes.length; i < len; i++) {
            if (isSameType(expectedTypes[i], type)) {
                return i;
            }
        }
    }
    else if (shared.isFunction(expectedTypes)) {
        return isSameType(expectedTypes, type) ? 0 : -1;
    }
    return -1;
}

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.
                reactivity.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);
                setCurrentInstance(null);
                reactivity.resetTracking();
                return res;
            });
        if (prepend) {
            hooks.unshift(wrappedHook);
        }
        else {
            hooks.push(wrappedHook);
        }
        return wrappedHook;
    }
}
const createHook = (lifecycle) => (hook, target = currentInstance) => 
// post-create lifecycle registrations are noops during SSR
!isInSSRComponentSetup && injectHook(lifecycle, hook, target);
const onBeforeMount = createHook("bm" /* BEFORE_MOUNT */);
const onMounted = createHook("m" /* MOUNTED */);
const onBeforeUpdate = createHook("bu" /* BEFORE_UPDATE */);
const onUpdated = createHook("u" /* UPDATED */);
const onBeforeUnmount = createHook("bum" /* BEFORE_UNMOUNT */);
const onUnmounted = createHook("um" /* UNMOUNTED */);
const onRenderTriggered = createHook("rtg" /* RENDER_TRIGGERED */);
const onRenderTracked = createHook("rtc" /* RENDER_TRACKED */);
const onErrorCaptured = (hook, target = currentInstance) => {
    injectHook("ec" /* ERROR_CAPTURED */, hook, target);
};

// Simple effect.
function watchEffect(effect, options) {
    return doWatch(effect, null, options);
}
// initial value for watchers to trigger on undefined initial values
const INITIAL_WATCHER_VALUE = {};
// implementation
function watch(source, cb, options) {
    return doWatch(source, cb, options);
}
function doWatch(source, cb, { immediate, deep, flush, onTrack, onTrigger } = shared.EMPTY_OBJ, instance = currentInstance) {
    let getter;
    let forceTrigger = false;
    if (reactivity.isRef(source)) {
        getter = () => source.value;
        forceTrigger = !!source._shallow;
    }
    else if (reactivity.isReactive(source)) {
        getter = () => source;
        deep = true;
    }
    else if (shared.isArray(source)) {
        getter = () => source.map(s => {
            if (reactivity.isRef(s)) {
                return s.value;
            }
            else if (reactivity.isReactive(s)) {
                return traverse(s);
            }
            else if (shared.isFunction(s)) {
                return callWithErrorHandling(s, instance, 2 /* WATCH_GETTER */, [
                    instance && instance.proxy
                ]);
            }
            else ;
        });
    }
    else if (shared.isFunction(source)) {
        if (cb) {
            // getter with cb
            getter = () => callWithErrorHandling(source, instance, 2 /* WATCH_GETTER */, [
                instance && instance.proxy
            ]);
        }
        else {
            // no cb -> simple effect
            getter = () => {
                if (instance && instance.isUnmounted) {
                    return;
                }
                if (cleanup) {
                    cleanup();
                }
                return callWithErrorHandling(source, instance, 3 /* WATCH_CALLBACK */, [onInvalidate]);
            };
        }
    }
    else {
        getter = shared.NOOP;
    }
    if (cb && deep) {
        const baseGetter = getter;
        getter = () => traverse(baseGetter());
    }
    let cleanup;
    const onInvalidate = (fn) => {
        cleanup = runner.options.onStop = () => {
            callWithErrorHandling(fn, instance, 4 /* WATCH_CLEANUP */);
        };
    };
    // in SSR there is no need to setup an actual effect, and it should be noop
    // unless it's eager
    if (isInSSRComponentSetup) {
        if (!cb) {
            getter();
        }
        else if (immediate) {
            callWithAsyncErrorHandling(cb, instance, 3 /* WATCH_CALLBACK */, [
                getter(),
                undefined,
                onInvalidate
            ]);
        }
        return shared.NOOP;
    }
    let oldValue = shared.isArray(source) ? [] : INITIAL_WATCHER_VALUE;
    const job = () => {
        if (!runner.active) {
            return;
        }
        if (cb) {
            // watch(source, cb)
            const newValue = runner();
            if (deep || forceTrigger || shared.hasChanged(newValue, oldValue)) {
                // cleanup before running cb again
                if (cleanup) {
                    cleanup();
                }
                callWithAsyncErrorHandling(cb, instance, 3 /* WATCH_CALLBACK */, [
                    newValue,
                    // pass undefined as the old value when it's changed for the first time
                    oldValue === INITIAL_WATCHER_VALUE ? undefined : oldValue,
                    onInvalidate
                ]);
                oldValue = newValue;
            }
        }
        else {
            // watchEffect
            runner();
        }
    };
    // 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;
    }
    else if (flush === 'post') {
        scheduler = () => queuePostRenderEffect(job, instance && instance.suspense);
    }
    else {
        // default: 'pre'
        scheduler = () => {
            if (!instance || instance.isMounted) {
                queuePreFlushCb(job);
            }
            else {
                // with 'pre' option, the first call must happen before
                // the component is mounted so it is called synchronously.
                job();
            }
        };
    }
    const runner = reactivity.effect(getter, {
        lazy: true,
        onTrack,
        onTrigger,
        scheduler
    });
    recordInstanceBoundEffect(runner, instance);
    // initial run
    if (cb) {
        if (immediate) {
            job();
        }
        else {
            oldValue = runner();
        }
    }
    else if (flush === 'post') {
        queuePostRenderEffect(runner, instance && instance.suspense);
    }
    else {
        runner();
    }
    return () => {
        reactivity.stop(runner);
        if (instance) {
            shared.remove(instance.effects, runner);
        }
    };
}
// this.$watch
function instanceWatch(source, cb, options) {
    const publicThis = this.proxy;
    const getter = shared.isString(source)
        ? () => publicThis[source]
        : source.bind(publicThis);
    return doWatch(getter, cb.bind(publicThis), options, this);
}
function traverse(value, seen = new Set()) {
    if (!shared.isObject(value) || seen.has(value)) {
        return value;
    }
    seen.add(value);
    if (reactivity.isRef(value)) {
        traverse(value.value, seen);
    }
    else if (shared.isArray(value)) {
        for (let i = 0; i < value.length; i++) {
            traverse(value[i], seen);
        }
    }
    else if (shared.isSet(value) || shared.isMap(value)) {
        value.forEach((v) => {
            traverse(v, seen);
        });
    }
    else {
        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;
            }
            // there's no need to track reactivity for these props so use the raw
            // props for a bit better perf
            const rawProps = reactivity.toRaw(props);
            const { mode } = rawProps;
            // at this point children has a guaranteed length of 1.
            const child = children[0];
            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;
                        instance.update();
                    };
                    return emptyPlaceholder(child);
                }
                else if (mode === 'in-out') {
                    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 /* TRANSITION_HOOK */, args);
    };
    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) {
                hook(el, done);
                if (hook.length <= 1) {
                    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) {
                onLeave(el, done);
                if (onLeave.length <= 1) {
                    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 /* COMPONENT */ && vnode.component) {
        setTransitionHooks(vnode.component.subTree, hooks);
    }
    else if (vnode.shapeFlag & 128 /* SUSPENSE */) {
        vnode.ssContent.transition = hooks.clone(vnode.ssContent);
        vnode.ssFallback.transition = hooks.clone(vnode.ssFallback);
    }
    else {
        vnode.transition = hooks;
    }
}
function getTransitionRawChildren(children, keepComment = false) {
    let ret = [];
    let keyedFragmentCount = 0;
    for (let i = 0; i < children.length; i++) {
        const child = children[i];
        // handle fragment children case, e.g. v-for
        if (child.type === Fragment) {
            if (child.patchFlag & 128 /* KEYED_FRAGMENT */)
                keyedFragmentCount++;
            ret = ret.concat(getTransitionRawChildren(child.children, keepComment));
        }
        // comment placeholders should be skipped, e.g. v-if
        else if (keepComment || child.type !== Comment) {
            ret.push(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 /* BAIL */;
        }
    }
    return ret;
}

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 cache = new Map();
        const keys = new Set();
        let current = null;
        const instance = getCurrentInstance();
        const parentSuspense = instance.suspense;
        // 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 { 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 /* ENTER */, parentSuspense);
            // in case props have changed
            patch(instance.vnode, vnode, container, anchor, instance, parentSuspense, isSVG, optimized);
            queuePostRenderEffect(() => {
                instance.isDeactivated = false;
                if (instance.a) {
                    shared.invokeArrayFns(instance.a);
                }
                const vnodeHook = vnode.props && vnode.props.onVnodeMounted;
                if (vnodeHook) {
                    invokeVNodeHook(vnodeHook, instance.parent, vnode);
                }
            }, parentSuspense);
        };
        sharedContext.deactivate = (vnode) => {
            const instance = vnode.component;
            move(vnode, storageContainer, null, 1 /* LEAVE */, parentSuspense);
            queuePostRenderEffect(() => {
                if (instance.da) {
                    shared.invokeArrayFns(instance.da);
                }
                const vnodeHook = vnode.props && vnode.props.onVnodeUnmounted;
                if (vnodeHook) {
                    invokeVNodeHook(vnodeHook, instance.parent, vnode);
                }
                instance.isDeactivated = true;
            }, parentSuspense);
        };
        function unmount(vnode) {
            // reset the shapeFlag so it can be properly unmounted
            resetShapeFlag(vnode);
            _unmount(vnode, instance, parentSuspense);
        }
        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 || cached.type !== current.type) {
                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) {
                    // 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) {
                current = null;
                return children;
            }
            else if (!isVNode(rawVNode) ||
                (!(rawVNode.shapeFlag & 4 /* STATEFUL_COMPONENT */) &&
                    !(rawVNode.shapeFlag & 128 /* SUSPENSE */))) {
                current = null;
                return rawVNode;
            }
            let vnode = getInnerChild(rawVNode);
            const comp = vnode.type;
            const name = getComponentName(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 /* 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 /* 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 /* COMPONENT_SHOULD_KEEP_ALIVE */;
            current = vnode;
            return rawVNode;
        };
    }
};
// 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 (shared.isArray(pattern)) {
        return pattern.some((p) => matches(p, name));
    }
    else if (shared.isString(pattern)) {
        return pattern.split(',').indexOf(name) > -1;
    }
    else if (pattern.test) {
        return pattern.test(name);
    }
    /* istanbul ignore next */
    return false;
}
function onActivated(hook, target) {
    registerKeepAliveHook(hook, "a" /* ACTIVATED */, target);
}
function onDeactivated(hook, target) {
    registerKeepAliveHook(hook, "da" /* 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;
            }
            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(() => {
        shared.remove(keepAliveRoot[type], injected);
    }, target);
}
function resetShapeFlag(vnode) {
    let shapeFlag = vnode.shapeFlag;
    if (shapeFlag & 256 /* COMPONENT_SHOULD_KEEP_ALIVE */) {
        shapeFlag -= 256 /* COMPONENT_SHOULD_KEEP_ALIVE */;
    }
    if (shapeFlag & 512 /* COMPONENT_KEPT_ALIVE */) {
        shapeFlag -= 512 /* COMPONENT_KEPT_ALIVE */;
    }
    vnode.shapeFlag = shapeFlag;
}
function getInnerChild(vnode) {
    return vnode.shapeFlag & 128 /* SUSPENSE */ ? vnode.ssContent : vnode;
}

const isInternalKey = (key) => key[0] === '_' || key === '$stable';
const normalizeSlotValue = (value) => shared.isArray(value)
    ? value.map(normalizeVNode)
    : [normalizeVNode(value)];
const normalizeSlot = (key, rawSlot, ctx) => withCtx((props) => {
    return normalizeSlotValue(rawSlot(props));
}, ctx);
const normalizeObjectSlots = (rawSlots, slots) => {
    const ctx = rawSlots._ctx;
    for (const key in rawSlots) {
        if (isInternalKey(key))
            continue;
        const value = rawSlots[key];
        if (shared.isFunction(value)) {
            slots[key] = normalizeSlot(key, value, ctx);
        }
        else if (value != null) {
            const normalized = normalizeSlotValue(value);
            slots[key] = () => normalized;
        }
    }
};
const normalizeVNodeSlots = (instance, children) => {
    const normalized = normalizeSlotValue(children);
    instance.slots.default = () => normalized;
};
const initSlots = (instance, children) => {
    if (instance.vnode.shapeFlag & 32 /* SLOTS_CHILDREN */) {
        const type = children._;
        if (type) {
            instance.slots = children;
            // make compiler marker non-enumerable
            shared.def(children, '_', type);
        }
        else {
            normalizeObjectSlots(children, (instance.slots = {}));
        }
    }
    else {
        instance.slots = {};
        if (children) {
            normalizeVNodeSlots(instance, children);
        }
    }
    shared.def(instance.slots, InternalObjectKey, 1);
};
const updateSlots = (instance, children) => {
    const { vnode, slots } = instance;
    let needDeletionCheck = true;
    let deletionComparisonTarget = shared.EMPTY_OBJ;
    if (vnode.shapeFlag & 32 /* SLOTS_CHILDREN */) {
        const type = children._;
        if (type) {
            // compiled slots.
            if (type === 1 /* 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.
                shared.extend(slots, children);
            }
        }
        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];
            }
        }
    }
};

/**
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]
])
*/
/**
 * Adds directives to a VNode.
 */
function withDirectives(vnode, directives) {
    const internalInstance = currentRenderingInstance;
    if (internalInstance === null) {
        return vnode;
    }
    const instance = internalInstance.proxy;
    const bindings = vnode.dirs || (vnode.dirs = []);
    for (let i = 0; i < directives.length; i++) {
        let [dir, value, arg, modifiers = shared.EMPTY_OBJ] = directives[i];
        if (shared.isFunction(dir)) {
            dir = {
                mounted: dir,
                updated: dir
            };
        }
        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;
        }
        const hook = binding.dir[name];
        if (hook) {
            callWithAsyncErrorHandling(hook, instance, 8 /* DIRECTIVE_HOOK */, [
                vnode.el,
                binding,
                vnode,
                prevVNode
            ]);
        }
    }
}

function createAppContext() {
    return {
        app: null,
        config: {
            isNativeTag: shared.NO,
            performance: false,
            globalProperties: {},
            optionMergeStrategies: {},
            isCustomElement: shared.NO,
            errorHandler: undefined,
            warnHandler: undefined
        },
        mixins: [],
        components: {},
        directives: {},
        provides: Object.create(null)
    };
}
let uid = 0;
function createAppAPI(render, hydrate) {
    return function createApp(rootComponent, rootProps = null) {
        if (rootProps != null && !shared.isObject(rootProps)) {
            rootProps = null;
        }
        const context = createAppContext();
        const installedPlugins = new Set();
        let isMounted = false;
        const app = (context.app = {
            _uid: uid++,
            _component: rootComponent,
            _props: rootProps,
            _container: null,
            _context: context,
            version,
            get config() {
                return context.config;
            },
            set config(v) {
            },
            use(plugin, ...options) {
                if (installedPlugins.has(plugin)) ;
                else if (plugin && shared.isFunction(plugin.install)) {
                    installedPlugins.add(plugin);
                    plugin.install(app, ...options);
                }
                else if (shared.isFunction(plugin)) {
                    installedPlugins.add(plugin);
                    plugin(app, ...options);
                }
                else ;
                return app;
            },
            mixin(mixin) {
                {
                    if (!context.mixins.includes(mixin)) {
                        context.mixins.push(mixin);
                        // global mixin with props/emits de-optimizes props/emits
                        // normalization caching.
                        if (mixin.props || mixin.emits) {
                            context.deopt = true;
                        }
                    }
                }
                return app;
            },
            component(name, component) {
                if (!component) {
                    return context.components[name];
                }
                context.components[name] = component;
                return app;
            },
            directive(name, directive) {
                if (!directive) {
                    return context.directives[name];
                }
                context.directives[name] = directive;
                return app;
            },
            mount(rootContainer, isHydrate) {
                if (!isMounted) {
                    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;
                    if (isHydrate && hydrate) {
                        hydrate(vnode, rootContainer);
                    }
                    else {
                        render(vnode, rootContainer);
                    }
                    isMounted = true;
                    app._container = rootContainer;
                    rootContainer.__vue_app__ = app;
                    return vnode.component.proxy;
                }
            },
            unmount() {
                if (isMounted) {
                    render(null, app._container);
                    delete app._container.__vue_app__;
                }
            },
            provide(key, value) {
                // TypeScript doesn't allow symbols as index type
                // https://github.com/Microsoft/TypeScript/issues/24587
                context.provides[key] = value;
                return app;
            }
        });
        return app;
    };
}

let hasMismatch = false;
const isSVGContainer = (container) => /svg/.test(container.namespaceURI) && container.tagName !== 'foreignObject';
const isComment = (node) => node.nodeType === 8 /* 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, nextSibling, parentNode, remove, insert, createComment } } = rendererInternals;
    const hydrate = (vnode, container) => {
        hasMismatch = false;
        hydrateNode(container.firstChild, vnode, null, null);
        flushPostFlushCbs();
        if (hasMismatch && !false) {
            // this error should show up in production
            console.error(`Hydration completed but contains mismatches.`);
        }
    };
    const hydrateNode = (node, vnode, parentComponent, parentSuspense, optimized = false) => {
        const isFragmentStart = isComment(node) && node.data === '[';
        const onMismatch = () => handleMismatch(node, vnode, parentComponent, parentSuspense, isFragmentStart);
        const { type, ref, shapeFlag } = vnode;
        const domType = node.nodeType;
        vnode.el = node;
        let nextNode = null;
        switch (type) {
            case Text:
                if (domType !== 3 /* TEXT */) {
                    nextNode = onMismatch();
                }
                else {
                    if (node.data !== vnode.children) {
                        hasMismatch = true;
                        node.data = vnode.children;
                    }
                    nextNode = nextSibling(node);
                }
                break;
            case Comment:
                if (domType !== 8 /* COMMENT */ || isFragmentStart) {
                    nextNode = onMismatch();
                }
                else {
                    nextNode = nextSibling(node);
                }
                break;
            case Static:
                if (domType !== 1 /* ELEMENT */) {
                    nextNode = onMismatch();
                }
                else {
                    // 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.outerHTML;
                        if (i === vnode.staticCount - 1) {
                            vnode.anchor = nextNode;
                        }
                        nextNode = nextSibling(nextNode);
                    }
                    return nextNode;
                }
                break;
            case Fragment:
                if (!isFragmentStart) {
                    nextNode = onMismatch();
                }
                else {
                    nextNode = hydrateFragment(node, vnode, parentComponent, parentSuspense, optimized);
                }
                break;
            default:
                if (shapeFlag & 1 /* ELEMENT */) {
                    if (domType !== 1 /* ELEMENT */ ||
                        vnode.type !== node.tagName.toLowerCase()) {
                        nextNode = onMismatch();
                    }
                    else {
                        nextNode = hydrateElement(node, vnode, parentComponent, parentSuspense, optimized);
                    }
                }
                else if (shapeFlag & 6 /* 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.
                    const container = parentNode(node);
                    const hydrateComponent = () => {
                        mountComponent(vnode, container, null, parentComponent, parentSuspense, isSVGContainer(container), optimized);
                    };
                    // async component
                    const loadAsync = vnode.type.__asyncLoader;
                    if (loadAsync) {
                        loadAsync().then(hydrateComponent);
                    }
                    else {
                        hydrateComponent();
                    }
                    // 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);
                }
                else if (shapeFlag & 64 /* TELEPORT */) {
                    if (domType !== 8 /* COMMENT */) {
                        nextNode = onMismatch();
                    }
                    else {
                        nextNode = vnode.type.hydrate(node, vnode, parentComponent, parentSuspense, optimized, rendererInternals, hydrateChildren);
                    }
                }
                else if (shapeFlag & 128 /* SUSPENSE */) {
                    nextNode = vnode.type.hydrate(node, vnode, parentComponent, parentSuspense, isSVGContainer(parentNode(node)), optimized, rendererInternals, hydrateNode);
                }
                else ;
        }
        if (ref != null) {
            setRef(ref, null, parentSuspense, vnode);
        }
        return nextNode;
    };
    const hydrateElement = (el, vnode, parentComponent, parentSuspense, optimized) => {
        optimized = optimized || !!vnode.dynamicChildren;
        const { props, patchFlag, shapeFlag, dirs } = vnode;
        // skip props & children if this is hoisted static nodes
        if (patchFlag !== -1 /* HOISTED */) {
            if (dirs) {
                invokeDirectiveHook(vnode, null, parentComponent, 'created');
            }
            // props
            if (props) {
                if (!optimized ||
                    (patchFlag & 16 /* FULL_PROPS */ ||
                        patchFlag & 32 /* HYDRATE_EVENTS */)) {
                    for (const key in props) {
                        if (!shared.isReservedProp(key) && shared.isOn(key)) {
                            patchProp(el, key, null, props[key]);
                        }
                    }
                }
                else if (props.onClick) {
                    // Fast path for click listeners (which is most often) to avoid
                    // iterating through props.
                    patchProp(el, 'onClick', null, props.onClick);
                }
            }
            // 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 /* ARRAY_CHILDREN */ &&
                // skip if element has innerHTML / textContent
                !(props && (props.innerHTML || props.textContent))) {
                let next = hydrateChildren(el.firstChild, vnode, el, parentComponent, parentSuspense, optimized);
                while (next) {
                    hasMismatch = true;
                    // The SSRed DOM contains more nodes than it should. Remove them.
                    const cur = next;
                    next = next.nextSibling;
                    remove(cur);
                }
            }
            else if (shapeFlag & 8 /* TEXT_CHILDREN */) {
                if (el.textContent !== vnode.children) {
                    hasMismatch = true;
                    el.textContent = vnode.children;
                }
            }
        }
        return el.nextSibling;
    };
    const hydrateChildren = (node, parentVNode, container, parentComponent, parentSuspense, optimized) => {
        optimized = optimized || !!parentVNode.dynamicChildren;
        const children = parentVNode.children;
        const l = children.length;
        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, optimized);
            }
            else {
                hasMismatch = true;
                // the SSRed DOM didn't contain enough nodes. Mount the missing ones.
                patch(null, vnode, container, null, parentComponent, parentSuspense, isSVGContainer(container));
            }
        }
        return node;
    };
    const hydrateFragment = (node, vnode, parentComponent, parentSuspense, optimized) => {
        const container = parentNode(node);
        const next = hydrateChildren(nextSibling(node), vnode, container, parentComponent, parentSuspense, 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, isFragment) => {
        hasMismatch = true;
        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));
        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];
}

// implementation, close to no-op
function defineComponent(options) {
    return shared.isFunction(options) ? { setup: options, name: options.name } : options;
}

const isAsyncWrapper = (i) => !!i.type.__asyncLoader;
function defineAsyncComponent(source) {
    if (shared.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;
                }
                // interop module default
                if (comp &&
                    (comp.__esModule || comp[Symbol.toStringTag] === 'Module')) {
                    comp = comp.default;
                }
                resolvedComp = comp;
                return comp;
            })));
    };
    return defineComponent({
        __asyncLoader: load,
        name: 'AsyncComponentWrapper',
        setup() {
            const instance = currentInstance;
            // already resolved
            if (resolvedComp) {
                return () => createInnerComp(resolvedComp, instance);
            }
            const onError = (err) => {
                pendingRequest = null;
                handleError(err, instance, 13 /* ASYNC_COMPONENT_LOADER */, !errorComponent /* do not throw in dev if user provided error component */);
            };
            // suspense-controlled or SSR.
            if ((suspensible && instance.suspense) ||
                (isInSSRComponentSetup)) {
                return load()
                    .then(comp => {
                    return () => createInnerComp(comp, instance);
                })
                    .catch(err => {
                    onError(err);
                    return () => errorComponent
                        ? createVNode(errorComponent, {
                            error: err
                        })
                        : null;
                });
            }
            const loaded = reactivity.ref(false);
            const error = reactivity.ref();
            const delayed = reactivity.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;
            })
                .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, { vnode: { ref, props, children } }) {
    const vnode = createVNode(comp, props, children);
    // ensure inner component inherits the async wrapper's ref owner
    vnode.ref = ref;
    return vnode;
}

const prodEffectOptions = {
    scheduler: queueJob,
    // #1801, #2043 component render effects should allow recursive updates
    allowRecurse: true
};
const queuePostRenderEffect = queueEffectWithSuspense
    ;
const setRef = (rawRef, oldRawRef, parentSuspense, vnode) => {
    if (shared.isArray(rawRef)) {
        rawRef.forEach((r, i) => setRef(r, oldRawRef && (shared.isArray(oldRawRef) ? oldRawRef[i] : oldRawRef), parentSuspense, vnode));
        return;
    }
    let value;
    if (!vnode || isAsyncWrapper(vnode)) {
        value = null;
    }
    else {
        if (vnode.shapeFlag & 4 /* STATEFUL_COMPONENT */) {
            value = vnode.component.exposed || vnode.component.proxy;
        }
        else {
            value = vnode.el;
        }
    }
    const { i: owner, r: ref } = rawRef;
    const oldRef = oldRawRef && oldRawRef.r;
    const refs = owner.refs === shared.EMPTY_OBJ ? (owner.refs = {}) : owner.refs;
    const setupState = owner.setupState;
    // unset old ref
    if (oldRef != null && oldRef !== ref) {
        if (shared.isString(oldRef)) {
            refs[oldRef] = null;
            if (shared.hasOwn(setupState, oldRef)) {
                setupState[oldRef] = null;
            }
        }
        else if (reactivity.isRef(oldRef)) {
            oldRef.value = null;
        }
    }
    if (shared.isString(ref)) {
        const doSet = () => {
            refs[ref] = value;
            if (shared.hasOwn(setupState, ref)) {
                setupState[ref] = value;
            }
        };
        // #1789: for non-null values, set them after render
        // null values means this is unmount and it should not overwrite another
        // ref with the same key
        if (value) {
            doSet.id = -1;
            queuePostRenderEffect(doSet, parentSuspense);
        }
        else {
            doSet();
        }
    }
    else if (reactivity.isRef(ref)) {
        const doSet = () => {
            ref.value = value;
        };
        if (value) {
            doSet.id = -1;
            queuePostRenderEffect(doSet, parentSuspense);
        }
        else {
            doSet();
        }
    }
    else if (shared.isFunction(ref)) {
        callWithErrorHandling(ref, owner, 12 /* FUNCTION_REF */, [value, refs]);
    }
    else ;
};
/**
 * 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 { insert: hostInsert, remove: hostRemove, patchProp: hostPatchProp, forcePatchProp: hostForcePatchProp, createElement: hostCreateElement, createText: hostCreateText, createComment: hostCreateComment, setText: hostSetText, setElementText: hostSetElementText, parentNode: hostParentNode, nextSibling: hostNextSibling, setScopeId: hostSetScopeId = shared.NOOP, cloneNode: hostCloneNode, 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, optimized = false) => {
        // 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 /* 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);
                }
                break;
            case Fragment:
                processFragment(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
                break;
            default:
                if (shapeFlag & 1 /* ELEMENT */) {
                    processElement(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
                }
                else if (shapeFlag & 6 /* COMPONENT */) {
                    processComponent(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
                }
                else if (shapeFlag & 64 /* TELEPORT */) {
                    type.process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, internals);
                }
                else if (shapeFlag & 128 /* SUSPENSE */) {
                    type.process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, internals);
                }
                else ;
        }
        // set ref
        if (ref != null && parentComponent) {
            setRef(ref, n1 && n1.ref, parentSuspense, 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);
    };
    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, optimized) => {
        isSVG = isSVG || n2.type === 'svg';
        if (n1 == null) {
            mountElement(n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
        }
        else {
            patchElement(n1, n2, parentComponent, parentSuspense, isSVG, optimized);
        }
    };
    const mountElement = (vnode, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
        let el;
        let vnodeHook;
        const { type, props, shapeFlag, transition, scopeId, patchFlag, dirs } = vnode;
        if (vnode.el &&
            hostCloneNode !== undefined &&
            patchFlag === -1 /* HOISTED */) {
            // If a vnode has non-null el, it means it's being reused.
            // Only static vnodes can be reused, so its mounted DOM nodes should be
            // exactly the same, and we can simply do a clone here.
            // only do this in production since cloned trees cannot be HMR updated.
            el = vnode.el = hostCloneNode(vnode.el);
        }
        else {
            el = vnode.el = hostCreateElement(vnode.type, isSVG, props && props.is);
            // mount children first, since some props may rely on child content
            // being already rendered, e.g. `<select value>`
            if (shapeFlag & 8 /* TEXT_CHILDREN */) {
                hostSetElementText(el, vnode.children);
            }
            else if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
                mountChildren(vnode.children, el, null, parentComponent, parentSuspense, isSVG && type !== 'foreignObject', optimized || !!vnode.dynamicChildren);
            }
            if (dirs) {
                invokeDirectiveHook(vnode, null, parentComponent, 'created');
            }
            // props
            if (props) {
                for (const key in props) {
                    if (!shared.isReservedProp(key)) {
                        hostPatchProp(el, key, null, props[key], isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
                    }
                }
                if ((vnodeHook = props.onVnodeBeforeMount)) {
                    invokeVNodeHook(vnodeHook, parentComponent, vnode);
                }
            }
            // scopeId
            setScopeId(el, scopeId, vnode, parentComponent);
        }
        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, scopeId, vnode, parentComponent) => {
        if (scopeId) {
            hostSetScopeId(el, scopeId);
        }
        if (parentComponent) {
            const treeOwnerId = parentComponent.type.__scopeId;
            // vnode's own scopeId and the current patched component's scopeId is
            // different - this is a slot content node.
            if (treeOwnerId && treeOwnerId !== scopeId) {
                hostSetScopeId(el, treeOwnerId + '-s');
            }
            let subTree = parentComponent.subTree;
            if (vnode === subTree) {
                setScopeId(el, parentComponent.vnode.scopeId, parentComponent.vnode, parentComponent.parent);
            }
        }
    };
    const mountChildren = (children, container, anchor, parentComponent, parentSuspense, isSVG, 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, optimized);
        }
    };
    const patchElement = (n1, n2, parentComponent, parentSuspense, isSVG, 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 /* FULL_PROPS */;
        const oldProps = n1.props || shared.EMPTY_OBJ;
        const newProps = n2.props || shared.EMPTY_OBJ;
        let vnodeHook;
        if ((vnodeHook = newProps.onVnodeBeforeUpdate)) {
            invokeVNodeHook(vnodeHook, parentComponent, n2, n1);
        }
        if (dirs) {
            invokeDirectiveHook(n2, n1, parentComponent, 'beforeUpdate');
        }
        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 /* 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 /* 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 /* 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 /* 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];
                        if (next !== prev ||
                            (hostForcePatchProp && hostForcePatchProp(el, key))) {
                            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 /* 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);
        }
        const areChildrenSVG = isSVG && n2.type !== 'foreignObject';
        if (dynamicChildren) {
            patchBlockChildren(n1.dynamicChildren, dynamicChildren, el, parentComponent, parentSuspense, areChildrenSVG);
        }
        else if (!optimized) {
            // full diff
            patchChildren(n1, n2, el, null, parentComponent, parentSuspense, areChildrenSVG);
        }
        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) => {
        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 = 
            // - 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 /* COMPONENT */ ||
                oldVNode.shapeFlag & 64 /* 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, true);
        }
    };
    const patchProps = (el, vnode, oldProps, newProps, parentComponent, parentSuspense, isSVG) => {
        if (oldProps !== newProps) {
            for (const key in newProps) {
                // empty string is not valid prop
                if (shared.isReservedProp(key))
                    continue;
                const next = newProps[key];
                const prev = oldProps[key];
                if (next !== prev ||
                    (hostForcePatchProp && hostForcePatchProp(el, key))) {
                    hostPatchProp(el, key, prev, next, isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
                }
            }
            if (oldProps !== shared.EMPTY_OBJ) {
                for (const key in oldProps) {
                    if (!shared.isReservedProp(key) && !(key in newProps)) {
                        hostPatchProp(el, key, oldProps[key], null, isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
                    }
                }
            }
        }
    };
    const processFragment = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
        const fragmentStartAnchor = (n2.el = n1 ? n1.el : hostCreateText(''));
        const fragmentEndAnchor = (n2.anchor = n1 ? n1.anchor : hostCreateText(''));
        let { patchFlag, dynamicChildren } = n2;
        if (patchFlag > 0) {
            optimized = true;
        }
        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, optimized);
        }
        else {
            if (patchFlag > 0 &&
                patchFlag & 64 /* 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);
                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, optimized);
            }
        }
    };
    const processComponent = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
        if (n1 == null) {
            if (n2.shapeFlag & 512 /* 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));
        // inject renderer internals for keepAlive
        if (isKeepAlive(initialVNode)) {
            instance.ctx.renderer = internals;
        }
        setupComponent(instance);
        // 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);
    };
    const updateComponent = (n1, n2, optimized) => {
        const instance = (n2.component = n1.component);
        if (shouldUpdateComponent(n1, n2, optimized)) {
            if (instance.asyncDep &&
                !instance.asyncResolved) {
                updateComponentPreRender(instance, n2, optimized);
                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 runner.
                instance.update();
            }
        }
        else {
            // no update needed. just copy over properties
            n2.component = n1.component;
            n2.el = n1.el;
            instance.vnode = n2;
        }
    };
    const setupRenderEffect = (instance, initialVNode, container, anchor, parentSuspense, isSVG, optimized) => {
        // create reactive effect for rendering
        instance.update = reactivity.effect(function componentEffect() {
            if (!instance.isMounted) {
                let vnodeHook;
                const { el, props } = initialVNode;
                const { bm, m, parent } = instance;
                // beforeMount hook
                if (bm) {
                    shared.invokeArrayFns(bm);
                }
                // onVnodeBeforeMount
                if ((vnodeHook = props && props.onVnodeBeforeMount)) {
                    invokeVNodeHook(vnodeHook, parent, initialVNode);
                }
                const subTree = (instance.subTree = renderComponentRoot(instance));
                if (el && hydrateNode) {
                    // vnode has adopted host node - perform hydration instead of mount.
                    hydrateNode(initialVNode.el, subTree, instance, parentSuspense);
                }
                else {
                    patch(null, subTree, container, anchor, instance, parentSuspense, isSVG);
                    initialVNode.el = subTree.el;
                }
                // mounted hook
                if (m) {
                    queuePostRenderEffect(m, parentSuspense);
                }
                // onVnodeMounted
                if ((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
                const { a } = instance;
                if (a &&
                    initialVNode.shapeFlag & 256 /* COMPONENT_SHOULD_KEEP_ALIVE */) {
                    queuePostRenderEffect(a, parentSuspense);
                }
                instance.isMounted = true;
                // #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;
                if (next) {
                    next.el = vnode.el;
                    updateComponentPreRender(instance, next, optimized);
                }
                else {
                    next = vnode;
                }
                // beforeUpdate hook
                if (bu) {
                    shared.invokeArrayFns(bu);
                }
                // onVnodeBeforeUpdate
                if ((vnodeHook = next.props && next.props.onVnodeBeforeUpdate)) {
                    invokeVNodeHook(vnodeHook, parent, next, vnode);
                }
                const nextTree = renderComponentRoot(instance);
                const prevTree = instance.subTree;
                instance.subTree = nextTree;
                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);
                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);
                }
            }
        }, prodEffectOptions);
    };
    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);
        // props update may have triggered pre-flush watchers.
        // flush them before the render update.
        flushPreFlushCbs(undefined, instance.update);
    };
    const patchChildren = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, 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 /* 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, optimized);
                return;
            }
            else if (patchFlag & 256 /* UNKEYED_FRAGMENT */) {
                // unkeyed
                patchUnkeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
                return;
            }
        }
        // children has 3 possibilities: text, array or no children.
        if (shapeFlag & 8 /* TEXT_CHILDREN */) {
            // text children fast path
            if (prevShapeFlag & 16 /* ARRAY_CHILDREN */) {
                unmountChildren(c1, parentComponent, parentSuspense);
            }
            if (c2 !== c1) {
                hostSetElementText(container, c2);
            }
        }
        else {
            if (prevShapeFlag & 16 /* ARRAY_CHILDREN */) {
                // prev children was array
                if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
                    // two arrays, cannot assume anything, do full diff
                    patchKeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, 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 /* TEXT_CHILDREN */) {
                    hostSetElementText(container, '');
                }
                // mount new if array
                if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
                    mountChildren(c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized);
                }
            }
        }
    };
    const patchUnkeyedChildren = (c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized) => {
        c1 = c1 || shared.EMPTY_ARR;
        c2 = c2 || shared.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, optimized);
        }
        if (oldLength > newLength) {
            // remove old
            unmountChildren(c1, parentComponent, parentSuspense, true, false, commonLength);
        }
        else {
            // mount new
            mountChildren(c2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, commonLength);
        }
    };
    // can be all-keyed or mixed
    const patchKeyedChildren = (c1, c2, container, parentAnchor, parentComponent, parentSuspense, isSVG, 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, 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, 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);
                    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) {
                    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, optimized);
                    patched++;
                }
            }
            // 5.3 move and mount
            // generate longest stable subsequence only when nodes have moved
            const increasingNewIndexSequence = moved
                ? getSequence(newIndexToOldIndexMap)
                : shared.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);
                }
                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 /* REORDER */);
                    }
                    else {
                        j--;
                    }
                }
            }
        }
    };
    const move = (vnode, container, anchor, moveType, parentSuspense = null) => {
        const { el, type, transition, children, shapeFlag } = vnode;
        if (shapeFlag & 6 /* COMPONENT */) {
            move(vnode.component.subTree, container, anchor, moveType);
            return;
        }
        if (shapeFlag & 128 /* SUSPENSE */) {
            vnode.suspense.move(container, anchor, moveType);
            return;
        }
        if (shapeFlag & 64 /* 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 /* REORDER */ &&
            shapeFlag & 1 /* ELEMENT */ &&
            transition;
        if (needTransition) {
            if (moveType === 0 /* 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, null);
        }
        if (shapeFlag & 256 /* COMPONENT_SHOULD_KEEP_ALIVE */) {
            parentComponent.ctx.deactivate(vnode);
            return;
        }
        const shouldInvokeDirs = shapeFlag & 1 /* ELEMENT */ && dirs;
        let vnodeHook;
        if ((vnodeHook = props && props.onVnodeBeforeUnmount)) {
            invokeVNodeHook(vnodeHook, parentComponent, vnode);
        }
        if (shapeFlag & 6 /* COMPONENT */) {
            unmountComponent(vnode.component, parentSuspense, doRemove);
        }
        else {
            if (shapeFlag & 128 /* SUSPENSE */) {
                vnode.suspense.unmount(parentSuspense, doRemove);
                return;
            }
            if (shouldInvokeDirs) {
                invokeDirectiveHook(vnode, null, parentComponent, 'beforeUnmount');
            }
            if (dynamicChildren &&
                // #1153: fast path should not be taken for non-stable (v-for) fragments
                (type !== Fragment ||
                    (patchFlag > 0 && patchFlag & 64 /* 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 /* KEYED_FRAGMENT */ ||
                    patchFlag & 256 /* UNKEYED_FRAGMENT */)) ||
                (!optimized && shapeFlag & 16 /* ARRAY_CHILDREN */)) {
                unmountChildren(children, parentComponent, parentSuspense);
            }
            // an unmounted teleport should always remove its children if not disabled
            if (shapeFlag & 64 /* TELEPORT */ &&
                (doRemove || !isTeleportDisabled(vnode.props))) {
                vnode.type.remove(vnode, internals);
            }
            if (doRemove) {
                remove(vnode);
            }
        }
        if ((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) {
            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 /* 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) => {
        const { bum, effects, update, subTree, um } = instance;
        // beforeUnmount hook
        if (bum) {
            shared.invokeArrayFns(bum);
        }
        if (effects) {
            for (let i = 0; i < effects.length; i++) {
                reactivity.stop(effects[i]);
            }
        }
        // update may be null if a component is unmounted before its async
        // setup has resolved.
        if (update) {
            reactivity.stop(update);
            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();
            }
        }
    };
    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 /* COMPONENT */) {
            return getNextHostNode(vnode.component.subTree);
        }
        if (vnode.shapeFlag & 128 /* SUSPENSE */) {
            return vnode.suspense.next();
        }
        return hostNextSibling((vnode.anchor || vnode.el));
    };
    const render = (vnode, container) => {
        if (vnode == null) {
            if (container._vnode) {
                unmount(container._vnode, null, null, true);
            }
        }
        else {
            patch(container._vnode || null, vnode, container);
        }
        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 invokeVNodeHook(hook, instance, vnode, prevVNode = null) {
    callWithAsyncErrorHandling(hook, instance, 7 /* VNODE_HOOK */, [
        vnode,
        prevVNode
    ]);
}
/**
 * #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 moved so that need inherit el form previous nodes
 * to ensure correct moved position.
 */
function traverseStaticChildren(n1, n2, shallow = false) {
    const ch1 = n1.children;
    const ch2 = n2.children;
    if (shared.isArray(ch1) && shared.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 /* ELEMENT */ && !c2.dynamicChildren) {
                if (c2.patchFlag <= 0 || c2.patchFlag === 32 /* HYDRATE_EVENTS */) {
                    c2 = ch2[i] = cloneIfMounted(ch2[i]);
                    c2.el = c1.el;
                }
                if (!shallow)
                    traverseStaticChildren(c1, c2);
            }
        }
    }
}
// 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) / 2) | 0;
                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 (shared.isString(targetSelector)) {
        if (!select) {
            return null;
        }
        else {
            const target = select(targetSelector);
            return target;
        }
    }
    else {
        return targetSelector;
    }
};
const TeleportImpl = {
    __isTeleport: true,
    process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, optimized, internals) {
        const { mc: mountChildren, pc: patchChildren, pbc: patchBlockChildren, o: { insert, querySelector, createText, createComment } } = internals;
        const disabled = isTeleportDisabled(n2.props);
        const { shapeFlag, children } = n2;
        if (n1 == null) {
            // insert anchors in the main view
            const placeholder = (n2.el = createText(''));
            const mainAnchor = (n2.anchor = createText(''));
            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);
            }
            const mount = (container, anchor) => {
                // Teleport *always* has Array children. This is enforced in both the
                // compiler and vnode children normalization.
                if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
                    mountChildren(children, container, anchor, parentComponent, parentSuspense, isSVG, 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 (n2.dynamicChildren) {
                // fast path when the teleport happens to be a block root
                patchBlockChildren(n1.dynamicChildren, n2.dynamicChildren, currentContainer, parentComponent, parentSuspense, isSVG);
                // 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);
            }
            if (disabled) {
                if (!wasDisabled) {
                    // enabled -> disabled
                    // move into main container
                    moveTeleport(n2, container, mainAnchor, internals, 1 /* 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 /* TARGET_CHANGE */);
                    }
                }
                else if (wasDisabled) {
                    // disabled -> enabled
                    // move into teleport target
                    moveTeleport(n2, target, targetAnchor, internals, 1 /* TOGGLE */);
                }
            }
        }
    },
    remove(vnode, { r: remove, o: { remove: hostRemove } }) {
        const { shapeFlag, children, anchor } = vnode;
        hostRemove(anchor);
        if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
            for (let i = 0; i < children.length; i++) {
                remove(children[i]);
            }
        }
    },
    move: moveTeleport,
    hydrate: hydrateTeleport
};
function moveTeleport(vnode, container, parentAnchor, { o: { insert }, m: move }, moveType = 2 /* REORDER */) {
    // move target anchor if this is a target change.
    if (moveType === 0 /* TARGET_CHANGE */) {
        insert(vnode.targetAnchor, container, parentAnchor);
    }
    const { el, anchor, shapeFlag, children, props } = vnode;
    const isReorder = moveType === 2 /* 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 /* ARRAY_CHILDREN */) {
            for (let i = 0; i < children.length; i++) {
                move(children[i], container, parentAnchor, 2 /* REORDER */);
            }
        }
    }
    // move main view anchor if this is a re-order.
    if (isReorder) {
        insert(anchor, container, parentAnchor);
    }
}
function hydrateTeleport(node, vnode, parentComponent, parentSuspense, 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 /* ARRAY_CHILDREN */) {
            if (isTeleportDisabled(vnode.props)) {
                vnode.anchor = hydrateChildren(nextSibling(node), vnode, parentNode(node), parentComponent, parentSuspense, optimized);
                vnode.targetAnchor = targetNode;
            }
            else {
                vnode.anchor = nextSibling(node);
                vnode.targetAnchor = hydrateChildren(targetNode, vnode, target, parentComponent, parentSuspense, optimized);
            }
            target._lpa =
                vnode.targetAnchor && nextSibling(vnode.targetAnchor);
        }
    }
    return vnode.anchor && nextSibling(vnode.anchor);
}
// Force-casted public typing for h and TSX props inference
const Teleport = TeleportImpl;

const COMPONENTS = 'components';
const DIRECTIVES = 'directives';
/**
 * @private
 */
function resolveComponent(name) {
    return resolveAsset(COMPONENTS, name) || name;
}
const NULL_DYNAMIC_COMPONENT = Symbol();
/**
 * @private
 */
function resolveDynamicComponent(component) {
    if (shared.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) {
    const instance = currentRenderingInstance || currentInstance;
    if (instance) {
        const Component = instance.type;
        // self name has highest priority
        if (type === COMPONENTS) {
            // special self referencing call generated by compiler
            // inferred from SFC filename
            if (name === `_self`) {
                return Component;
            }
            const selfName = getComponentName(Component);
            if (selfName &&
                (selfName === name ||
                    selfName === shared.camelize(name) ||
                    selfName === shared.capitalize(shared.camelize(name)))) {
                return Component;
            }
        }
        const res = 
        // local registration
        // check instance[type] first for components with mixin or extends.
        resolve(instance[type] || Component[type], name) ||
            // global registration
            resolve(instance.appContext[type], name);
        return res;
    }
}
function resolve(registry, name) {
    return (registry &&
        (registry[name] ||
            registry[shared.camelize(name)] ||
            registry[shared.capitalize(shared.camelize(name))]));
}

const Fragment = Symbol(undefined);
const Text = Symbol(undefined);
const Comment = Symbol(undefined);
const Static = Symbol(undefined);
// 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 shouldTrack = 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) {
    shouldTrack += value;
}
/**
 * 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) {
    const vnode = createVNode(type, props, children, patchFlag, dynamicProps, true /* isBlock: prevent a block from tracking itself */);
    // save current block children on the block vnode
    vnode.dynamicChildren = currentBlock || shared.EMPTY_ARR;
    // close block
    closeBlock();
    // a block is always going to be patched, so track it as a child of its
    // parent block
    if (shouldTrack > 0 && currentBlock) {
        currentBlock.push(vnode);
    }
    return vnode;
}
function isVNode(value) {
    return value ? value.__v_isVNode === true : false;
}
function isSameVNodeType(n1, n2) {
    return n1.type === n2.type && n1.key === n2.key;
}
/**
 * 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) {
}
const InternalObjectKey = `__vInternal`;
const normalizeKey = ({ key }) => key != null ? key : null;
const normalizeRef = ({ ref }) => {
    return (ref != null
        ? shared.isString(ref) || reactivity.isRef(ref) || shared.isFunction(ref)
            ? { i: currentRenderingInstance, r: ref }
            : ref
        : null);
};
const createVNode = (_createVNode);
function _createVNode(type, props = null, children = null, patchFlag = 0, dynamicProps = null, isBlockNode = false) {
    if (!type || type === NULL_DYNAMIC_COMPONENT) {
        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);
        }
        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.
        if (reactivity.isProxy(props) || InternalObjectKey in props) {
            props = shared.extend({}, props);
        }
        let { class: klass, style } = props;
        if (klass && !shared.isString(klass)) {
            props.class = shared.normalizeClass(klass);
        }
        if (shared.isObject(style)) {
            // reactive state objects need to be cloned since they are likely to be
            // mutated
            if (reactivity.isProxy(style) && !shared.isArray(style)) {
                style = shared.extend({}, style);
            }
            props.style = shared.normalizeStyle(style);
        }
    }
    // encode the vnode type information into a bitmap
    const shapeFlag = shared.isString(type)
        ? 1 /* ELEMENT */
        : isSuspense(type)
            ? 128 /* SUSPENSE */
            : isTeleport(type)
                ? 64 /* TELEPORT */
                : shared.isObject(type)
                    ? 4 /* STATEFUL_COMPONENT */
                    : shared.isFunction(type)
                        ? 2 /* FUNCTIONAL_COMPONENT */
                        : 0;
    const vnode = {
        __v_isVNode: true,
        ["__v_skip" /* SKIP */]: true,
        type,
        props,
        key: props && normalizeKey(props),
        ref: props && normalizeRef(props),
        scopeId: currentScopeId,
        children: null,
        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
    };
    normalizeChildren(vnode, children);
    // normalize suspense children
    if (shapeFlag & 128 /* SUSPENSE */) {
        const { content, fallback } = normalizeSuspenseChildren(vnode);
        vnode.ssContent = content;
        vnode.ssFallback = fallback;
    }
    if (shouldTrack > 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.
        (patchFlag > 0 || shapeFlag & 6 /* 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.
        patchFlag !== 32 /* HYDRATE_EVENTS */) {
        currentBlock.push(vnode);
    }
    return vnode;
}
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;
    return {
        __v_isVNode: true,
        ["__v_skip" /* 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
                    ? shared.isArray(ref)
                        ? ref.concat(normalizeRef(extraProps))
                        : [ref, normalizeRef(extraProps)]
                    : normalizeRef(extraProps)
            : ref,
        scopeId: vnode.scopeId,
        children: 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: perserve flag for fragments since they use the flag for children
        // fast paths only.
        patchFlag: extraProps && vnode.type !== Fragment
            ? patchFlag === -1 // hoisted node
                ? 16 /* FULL_PROPS */
                : patchFlag | 16 /* 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
    };
}
/**
 * @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 (shared.isArray(child)) {
        // fragment
        return createVNode(Fragment, null, child);
    }
    else if (typeof child === 'object') {
        // already vnode, this should be the most common since compiled templates
        // always produce all-vnode children arrays
        return child.el === null ? child : cloneVNode(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 : cloneVNode(child);
}
function normalizeChildren(vnode, children) {
    let type = 0;
    const { shapeFlag } = vnode;
    if (children == null) {
        children = null;
    }
    else if (shared.isArray(children)) {
        type = 16 /* ARRAY_CHILDREN */;
    }
    else if (typeof children === 'object') {
        if (shapeFlag & 1 /* ELEMENT */ || shapeFlag & 64 /* 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 && setCompiledSlotRendering(1);
                normalizeChildren(vnode, slot());
                slot._c && setCompiledSlotRendering(-1);
            }
            return;
        }
        else {
            type = 32 /* SLOTS_CHILDREN */;
            const slotFlag = children._;
            if (!slotFlag && !(InternalObjectKey in children)) {
                children._ctx = currentRenderingInstance;
            }
            else if (slotFlag === 3 /* FORWARDED */ && currentRenderingInstance) {
                // a child component receives forwarded slots from the parent.
                // its slot type is determined by its parent's slot type.
                if (currentRenderingInstance.vnode.patchFlag & 1024 /* DYNAMIC_SLOTS */) {
                    children._ = 2 /* DYNAMIC */;
                    vnode.patchFlag |= 1024 /* DYNAMIC_SLOTS */;
                }
                else {
                    children._ = 1 /* STABLE */;
                }
            }
        }
    }
    else if (shared.isFunction(children)) {
        children = { default: children, _ctx: currentRenderingInstance };
        type = 32 /* SLOTS_CHILDREN */;
    }
    else {
        children = String(children);
        // force teleport children to array so it can be moved around
        if (shapeFlag & 64 /* TELEPORT */) {
            type = 16 /* ARRAY_CHILDREN */;
            children = [createTextVNode(children)];
        }
        else {
            type = 8 /* TEXT_CHILDREN */;
        }
    }
    vnode.children = children;
    vnode.shapeFlag |= type;
}
function mergeProps(...args) {
    const ret = shared.extend({}, args[0]);
    for (let i = 1; i < args.length; i++) {
        const toMerge = args[i];
        for (const key in toMerge) {
            if (key === 'class') {
                if (ret.class !== toMerge.class) {
                    ret.class = shared.normalizeClass([ret.class, toMerge.class]);
                }
            }
            else if (key === 'style') {
                ret.style = shared.normalizeStyle([ret.style, toMerge.style]);
            }
            else if (shared.isOn(key)) {
                const existing = ret[key];
                const incoming = toMerge[key];
                if (existing !== incoming) {
                    ret[key] = existing
                        ? [].concat(existing, toMerge[key])
                        : incoming;
                }
            }
            else if (key !== '') {
                ret[key] = toMerge[key];
            }
        }
    }
    return ret;
}

function provide(key, value) {
    if (!currentInstance) ;
    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 intance 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 && shared.isFunction(defaultValue)
                ? defaultValue()
                : defaultValue;
        }
        else ;
    }
}

let isInBeforeCreate = false;
function applyOptions(instance, options, deferredData = [], deferredWatch = [], deferredProvide = [], asMixin = false) {
    const { 
    // composition
    mixins, extends: extendsOptions, 
    // state
    data: dataOptions, computed: computedOptions, methods, watch: watchOptions, provide: provideOptions, inject: injectOptions, 
    // assets
    components, directives, 
    // lifecycle
    beforeMount, mounted, beforeUpdate, updated, activated, deactivated, beforeDestroy, beforeUnmount, destroyed, unmounted, render, renderTracked, renderTriggered, errorCaptured, 
    // public API
    expose } = options;
    const publicThis = instance.proxy;
    const ctx = instance.ctx;
    const globalMixins = instance.appContext.mixins;
    if (asMixin && render && instance.render === shared.NOOP) {
        instance.render = render;
    }
    // applyOptions is called non-as-mixin once per instance
    if (!asMixin) {
        isInBeforeCreate = true;
        callSyncHook('beforeCreate', "bc" /* BEFORE_CREATE */, options, instance, globalMixins);
        isInBeforeCreate = false;
        // global mixins are applied first
        applyMixins(instance, globalMixins, deferredData, deferredWatch, deferredProvide);
    }
    // extending a base component...
    if (extendsOptions) {
        applyOptions(instance, extendsOptions, deferredData, deferredWatch, deferredProvide, true);
    }
    // local mixins
    if (mixins) {
        applyMixins(instance, mixins, deferredData, deferredWatch, deferredProvide);
    }
    // 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) {
        if (shared.isArray(injectOptions)) {
            for (let i = 0; i < injectOptions.length; i++) {
                const key = injectOptions[i];
                ctx[key] = inject(key);
            }
        }
        else {
            for (const key in injectOptions) {
                const opt = injectOptions[key];
                if (shared.isObject(opt)) {
                    ctx[key] = inject(opt.from || key, opt.default, true /* treat default function as factory */);
                }
                else {
                    ctx[key] = inject(opt);
                }
            }
        }
    }
    if (methods) {
        for (const key in methods) {
            const methodHandler = methods[key];
            if (shared.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
                {
                    ctx[key] = methodHandler.bind(publicThis);
                }
            }
        }
    }
    if (!asMixin) {
        if (deferredData.length) {
            deferredData.forEach(dataFn => resolveData(instance, dataFn, publicThis));
        }
        if (dataOptions) {
            // @ts-ignore dataOptions is not fully type safe
            resolveData(instance, dataOptions, publicThis);
        }
    }
    else if (dataOptions) {
        deferredData.push(dataOptions);
    }
    if (computedOptions) {
        for (const key in computedOptions) {
            const opt = computedOptions[key];
            const get = shared.isFunction(opt)
                ? opt.bind(publicThis, publicThis)
                : shared.isFunction(opt.get)
                    ? opt.get.bind(publicThis, publicThis)
                    : shared.NOOP;
            const set = !shared.isFunction(opt) && shared.isFunction(opt.set)
                ? opt.set.bind(publicThis)
                : shared.NOOP;
            const c = computed({
                get,
                set
            });
            Object.defineProperty(ctx, key, {
                enumerable: true,
                configurable: true,
                get: () => c.value,
                set: v => (c.value = v)
            });
        }
    }
    if (watchOptions) {
        deferredWatch.push(watchOptions);
    }
    if (!asMixin && deferredWatch.length) {
        deferredWatch.forEach(watchOptions => {
            for (const key in watchOptions) {
                createWatcher(watchOptions[key], ctx, publicThis, key);
            }
        });
    }
    if (provideOptions) {
        deferredProvide.push(provideOptions);
    }
    if (!asMixin && deferredProvide.length) {
        deferredProvide.forEach(provideOptions => {
            const provides = shared.isFunction(provideOptions)
                ? provideOptions.call(publicThis)
                : provideOptions;
            Reflect.ownKeys(provides).forEach(key => {
                provide(key, provides[key]);
            });
        });
    }
    // asset options.
    // To reduce memory usage, only components with mixins or extends will have
    // resolved asset registry attached to instance.
    if (asMixin) {
        if (components) {
            shared.extend(instance.components ||
                (instance.components = shared.extend({}, instance.type.components)), components);
        }
        if (directives) {
            shared.extend(instance.directives ||
                (instance.directives = shared.extend({}, instance.type.directives)), directives);
        }
    }
    // lifecycle options
    if (!asMixin) {
        callSyncHook('created', "c" /* CREATED */, options, instance, globalMixins);
    }
    if (beforeMount) {
        onBeforeMount(beforeMount.bind(publicThis));
    }
    if (mounted) {
        onMounted(mounted.bind(publicThis));
    }
    if (beforeUpdate) {
        onBeforeUpdate(beforeUpdate.bind(publicThis));
    }
    if (updated) {
        onUpdated(updated.bind(publicThis));
    }
    if (activated) {
        onActivated(activated.bind(publicThis));
    }
    if (deactivated) {
        onDeactivated(deactivated.bind(publicThis));
    }
    if (errorCaptured) {
        onErrorCaptured(errorCaptured.bind(publicThis));
    }
    if (renderTracked) {
        onRenderTracked(renderTracked.bind(publicThis));
    }
    if (renderTriggered) {
        onRenderTriggered(renderTriggered.bind(publicThis));
    }
    if (beforeUnmount) {
        onBeforeUnmount(beforeUnmount.bind(publicThis));
    }
    if (unmounted) {
        onUnmounted(unmounted.bind(publicThis));
    }
    if (shared.isArray(expose)) {
        if (!asMixin) {
            if (expose.length) {
                const exposed = instance.exposed || (instance.exposed = reactivity.proxyRefs({}));
                expose.forEach(key => {
                    exposed[key] = reactivity.toRef(publicThis, key);
                });
            }
            else if (!instance.exposed) {
                instance.exposed = shared.EMPTY_OBJ;
            }
        }
    }
}
function callSyncHook(name, type, options, instance, globalMixins) {
    callHookFromMixins(name, type, globalMixins, instance);
    const { extends: base, mixins } = options;
    if (base) {
        callHookFromExtends(name, type, base, instance);
    }
    if (mixins) {
        callHookFromMixins(name, type, mixins, instance);
    }
    const selfHook = options[name];
    if (selfHook) {
        callWithAsyncErrorHandling(selfHook.bind(instance.proxy), instance, type);
    }
}
function callHookFromExtends(name, type, base, instance) {
    if (base.extends) {
        callHookFromExtends(name, type, base.extends, instance);
    }
    const baseHook = base[name];
    if (baseHook) {
        callWithAsyncErrorHandling(baseHook.bind(instance.proxy), instance, type);
    }
}
function callHookFromMixins(name, type, mixins, instance) {
    for (let i = 0; i < mixins.length; i++) {
        const chainedMixins = mixins[i].mixins;
        if (chainedMixins) {
            callHookFromMixins(name, type, chainedMixins, instance);
        }
        const fn = mixins[i][name];
        if (fn) {
            callWithAsyncErrorHandling(fn.bind(instance.proxy), instance, type);
        }
    }
}
function applyMixins(instance, mixins, deferredData, deferredWatch, deferredProvide) {
    for (let i = 0; i < mixins.length; i++) {
        applyOptions(instance, mixins[i], deferredData, deferredWatch, deferredProvide, true);
    }
}
function resolveData(instance, dataFn, publicThis) {
    const data = dataFn.call(publicThis, publicThis);
    if (!shared.isObject(data)) ;
    else if (instance.data === shared.EMPTY_OBJ) {
        instance.data = reactivity.reactive(data);
    }
    else {
        // existing data: this is a mixin or extends.
        shared.extend(instance.data, data);
    }
}
function createWatcher(raw, ctx, publicThis, key) {
    const getter = key.includes('.')
        ? createPathGetter(publicThis, key)
        : () => publicThis[key];
    if (shared.isString(raw)) {
        const handler = ctx[raw];
        if (shared.isFunction(handler)) {
            watch(getter, handler);
        }
    }
    else if (shared.isFunction(raw)) {
        watch(getter, raw.bind(publicThis));
    }
    else if (shared.isObject(raw)) {
        if (shared.isArray(raw)) {
            raw.forEach(r => createWatcher(r, ctx, publicThis, key));
        }
        else {
            const handler = shared.isFunction(raw.handler)
                ? raw.handler.bind(publicThis)
                : ctx[raw.handler];
            if (shared.isFunction(handler)) {
                watch(getter, handler, raw);
            }
        }
    }
    else ;
}
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 resolveMergedOptions(instance) {
    const raw = instance.type;
    const { __merged, mixins, extends: extendsOptions } = raw;
    if (__merged)
        return __merged;
    const globalMixins = instance.appContext.mixins;
    if (!globalMixins.length && !mixins && !extendsOptions)
        return raw;
    const options = {};
    globalMixins.forEach(m => mergeOptions(options, m, instance));
    mergeOptions(options, raw, instance);
    return (raw.__merged = options);
}
function mergeOptions(to, from, instance) {
    const strats = instance.appContext.config.optionMergeStrategies;
    const { mixins, extends: extendsOptions } = from;
    extendsOptions && mergeOptions(to, extendsOptions, instance);
    mixins &&
        mixins.forEach((m) => mergeOptions(to, m, instance));
    for (const key in from) {
        if (strats && shared.hasOwn(strats, key)) {
            to[key] = strats[key](to[key], from[key], instance.proxy, key);
        }
        else {
            to[key] = from[key];
        }
    }
}

/**
 * #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 i.exposed ? i.exposed : i.proxy;
    return getPublicInstance(i.parent);
};
const publicPropertiesMap = shared.extend(Object.create(null), {
    $: i => i,
    $el: i => i.vnode.el,
    $data: i => i.data,
    $props: i => (i.props),
    $attrs: i => (i.attrs),
    $slots: i => (i.slots),
    $refs: i => (i.refs),
    $parent: i => getPublicInstance(i.parent),
    $root: i => getPublicInstance(i.root),
    $emit: i => i.emit,
    $options: i => (resolveMergedOptions(i) ),
    $forceUpdate: i => () => queueJob(i.update),
    $nextTick: i => nextTick.bind(i.proxy),
    $watch: i => (instanceWatch.bind(i) )
});
const PublicInstanceProxyHandlers = {
    get({ _: instance }, key) {
        const { ctx, setupState, data, props, accessCache, type, appContext } = instance;
        // let @vue/reactivity know it should never observe Vue public instances.
        if (key === "__v_skip" /* SKIP */) {
            return true;
        }
        // data / props / ctx
        // This getter gets called for every property access on the render context
        // during render and is a major hotspot. The most expensive part of this
        // is the multiple hasOwn() calls. It's much faster to do a simple property
        // access on a plain object, so we use an accessCache object (with null
        // prototype) to memoize what access type a key corresponds to.
        let normalizedProps;
        if (key[0] !== '$') {
            const n = accessCache[key];
            if (n !== undefined) {
                switch (n) {
                    case 0 /* SETUP */:
                        return setupState[key];
                    case 1 /* DATA */:
                        return data[key];
                    case 3 /* CONTEXT */:
                        return ctx[key];
                    case 2 /* PROPS */:
                        return props[key];
                    // default: just fallthrough
                }
            }
            else if (setupState !== shared.EMPTY_OBJ && shared.hasOwn(setupState, key)) {
                accessCache[key] = 0 /* SETUP */;
                return setupState[key];
            }
            else if (data !== shared.EMPTY_OBJ && shared.hasOwn(data, key)) {
                accessCache[key] = 1 /* DATA */;
                return data[key];
            }
            else if (
            // only cache other properties when instance has declared (thus stable)
            // props
            (normalizedProps = instance.propsOptions[0]) &&
                shared.hasOwn(normalizedProps, key)) {
                accessCache[key] = 2 /* PROPS */;
                return props[key];
            }
            else if (ctx !== shared.EMPTY_OBJ && shared.hasOwn(ctx, key)) {
                accessCache[key] = 3 /* CONTEXT */;
                return ctx[key];
            }
            else if (!isInBeforeCreate) {
                accessCache[key] = 4 /* OTHER */;
            }
        }
        const publicGetter = publicPropertiesMap[key];
        let cssModule, globalProperties;
        // public $xxx properties
        if (publicGetter) {
            if (key === '$attrs') {
                reactivity.track(instance, "get" /* GET */, key);
            }
            return publicGetter(instance);
        }
        else if (
        // css module (injected by vue-loader)
        (cssModule = type.__cssModules) &&
            (cssModule = cssModule[key])) {
            return cssModule;
        }
        else if (ctx !== shared.EMPTY_OBJ && shared.hasOwn(ctx, key)) {
            // user may set custom properties to `this` that start with `$`
            accessCache[key] = 3 /* CONTEXT */;
            return ctx[key];
        }
        else if (
        // global properties
        ((globalProperties = appContext.config.globalProperties),
            shared.hasOwn(globalProperties, key))) {
            return globalProperties[key];
        }
        else ;
    },
    set({ _: instance }, key, value) {
        const { data, setupState, ctx } = instance;
        if (setupState !== shared.EMPTY_OBJ && shared.hasOwn(setupState, key)) {
            setupState[key] = value;
        }
        else if (data !== shared.EMPTY_OBJ && shared.hasOwn(data, key)) {
            data[key] = value;
        }
        else if (shared.hasOwn(instance.props, key)) {
            return false;
        }
        if (key[0] === '$' && key.slice(1) in instance) {
            return false;
        }
        else {
            {
                ctx[key] = value;
            }
        }
        return true;
    },
    has({ _: { data, setupState, accessCache, ctx, appContext, propsOptions } }, key) {
        let normalizedProps;
        return (accessCache[key] !== undefined ||
            (data !== shared.EMPTY_OBJ && shared.hasOwn(data, key)) ||
            (setupState !== shared.EMPTY_OBJ && shared.hasOwn(setupState, key)) ||
            ((normalizedProps = propsOptions[0]) && shared.hasOwn(normalizedProps, key)) ||
            shared.hasOwn(ctx, key) ||
            shared.hasOwn(publicPropertiesMap, key) ||
            shared.hasOwn(appContext.config.globalProperties, key));
    }
};
const RuntimeCompiledPublicInstanceProxyHandlers = shared.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] !== '_' && !shared.isGloballyWhitelisted(key);
        return has;
    }
});

const emptyAppContext = createAppContext();
let uid$1 = 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$1++,
        vnode,
        type,
        parent,
        appContext,
        root: null,
        next: null,
        subTree: null,
        update: null,
        render: null,
        proxy: null,
        exposed: null,
        withProxy: null,
        effects: null,
        provides: parent ? parent.provides : Object.create(appContext.provides),
        accessCache: null,
        renderCache: [],
        // local resovled assets
        components: null,
        directives: null,
        // resolved props and emits options
        propsOptions: normalizePropsOptions(type, appContext),
        emitsOptions: normalizeEmitsOptions(type, appContext),
        // emit
        emit: null,
        emitted: null,
        // state
        ctx: shared.EMPTY_OBJ,
        data: shared.EMPTY_OBJ,
        props: shared.EMPTY_OBJ,
        attrs: shared.EMPTY_OBJ,
        slots: shared.EMPTY_OBJ,
        refs: shared.EMPTY_OBJ,
        setupState: shared.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
    };
    {
        instance.ctx = { _: instance };
    }
    instance.root = parent ? parent.root : instance;
    instance.emit = emit.bind(null, instance);
    return instance;
}
let currentInstance = null;
const getCurrentInstance = () => currentInstance || currentRenderingInstance;
const setCurrentInstance = (instance) => {
    currentInstance = instance;
};
function isStatefulComponent(instance) {
    return instance.vnode.shapeFlag & 4 /* 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) {
    const Component = instance.type;
    // 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 = new Proxy(instance.ctx, PublicInstanceProxyHandlers);
    // 2. call setup()
    const { setup } = Component;
    if (setup) {
        const setupContext = (instance.setupContext =
            setup.length > 1 ? createSetupContext(instance) : null);
        currentInstance = instance;
        reactivity.pauseTracking();
        const setupResult = callWithErrorHandling(setup, instance, 0 /* SETUP_FUNCTION */, [instance.props, setupContext]);
        reactivity.resetTracking();
        currentInstance = null;
        if (shared.isPromise(setupResult)) {
            if (isSSR) {
                // return the promise so server-renderer can wait on it
                return setupResult.then((resolvedResult) => {
                    handleSetupResult(instance, resolvedResult, isSSR);
                });
            }
            else {
                // async setup returned Promise.
                // bail here and wait for re-entry.
                instance.asyncDep = setupResult;
            }
        }
        else {
            handleSetupResult(instance, setupResult, isSSR);
        }
    }
    else {
        finishComponentSetup(instance, isSSR);
    }
}
function handleSetupResult(instance, setupResult, isSSR) {
    if (shared.isFunction(setupResult)) {
        // setup returned an inline render function
        if (instance.type.__ssrInlineRender) {
            // when the function's name is `ssrRender` (compiled by SFC inline mode),
            // set it as ssrRender instead.
            instance.ssrRender = setupResult;
        }
        else {
            instance.render = setupResult;
        }
    }
    else if (shared.isObject(setupResult)) {
        instance.setupState = reactivity.proxyRefs(setupResult);
    }
    else ;
    finishComponentSetup(instance, isSSR);
}
let compile;
/**
 * 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 = _compile;
}
function finishComponentSetup(instance, isSSR) {
    const Component = instance.type;
    // template / render function normalization
    if (isSSR) {
        if (Component.render) {
            instance.render = Component.render;
        }
    }
    else if (!instance.render) {
        // could be set from setup()
        if (compile && Component.template && !Component.render) {
            Component.render = compile(Component.template, {
                isCustomElement: instance.appContext.config.isCustomElement,
                delimiters: Component.delimiters
            });
        }
        instance.render = (Component.render || shared.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 (instance.render._rc) {
            instance.withProxy = new Proxy(instance.ctx, RuntimeCompiledPublicInstanceProxyHandlers);
        }
    }
    // support for 2.x options
    {
        currentInstance = instance;
        reactivity.pauseTracking();
        applyOptions(instance, Component);
        reactivity.resetTracking();
        currentInstance = null;
    }
}
function createSetupContext(instance) {
    const expose = exposed => {
        instance.exposed = reactivity.proxyRefs(exposed);
    };
    {
        return {
            attrs: instance.attrs,
            slots: instance.slots,
            emit: instance.emit,
            expose
        };
    }
}
// record effects created during a component's setup() so that they can be
// stopped when the component unmounts
function recordInstanceBoundEffect(effect, instance = currentInstance) {
    if (instance) {
        (instance.effects || (instance.effects = [])).push(effect);
    }
}
const classifyRE = /(?:^|[-_])(\w)/g;
const classify = (str) => str.replace(classifyRE, c => c.toUpperCase()).replace(/[-_]/g, '');
function getComponentName(Component) {
    return shared.isFunction(Component)
        ? Component.displayName || Component.name
        : 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 shared.isFunction(value) && '__vccOpts' in value;
}

function computed(getterOrOptions) {
    const c = reactivity.computed(getterOrOptions);
    recordInstanceBoundEffect(c.effect);
    return c;
}

// implementation
function defineProps() {
    return null;
}
// implementation
function defineEmit() {
    return null;
}
function useContext() {
    const i = getCurrentInstance();
    return i.setupContext || (i.setupContext = createSetupContext(i));
}

// Actual implementation
function h(type, propsOrChildren, children) {
    const l = arguments.length;
    if (l === 2) {
        if (shared.isObject(propsOrChildren) && !shared.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(``);
const useSSRContext = () => {
    {
        const ctx = inject(ssrContextKey);
        if (!ctx) {
            warn(`Server rendering context not provided. Make sure to only call ` +
                `useSSRContext() conditionally in the server build.`);
        }
        return ctx;
    }
};

function initCustomFormatter() {
    /* eslint-disable no-restricted-globals */
    {
        return;
    }
}

/**
 * Actual implementation
 */
function renderList(source, renderItem) {
    let ret;
    if (shared.isArray(source) || shared.isString(source)) {
        ret = new Array(source.length);
        for (let i = 0, l = source.length; i < l; i++) {
            ret[i] = renderItem(source[i], i);
        }
    }
    else if (typeof source === 'number') {
        ret = new Array(source);
        for (let i = 0; i < source; i++) {
            ret[i] = renderItem(i + 1, i);
        }
    }
    else if (shared.isObject(source)) {
        if (source[Symbol.iterator]) {
            ret = Array.from(source, renderItem);
        }
        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);
            }
        }
    }
    else {
        ret = [];
    }
    return ret;
}

/**
 * For prefixing keys in v-on="obj" with "on"
 * @private
 */
function toHandlers(obj) {
    const ret = {};
    for (const key in obj) {
        ret[shared.toHandlerKey(key)] = obj[key];
    }
    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 (shared.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.fn;
        }
    }
    return slots;
}

// Core API ------------------------------------------------------------------
const version = "3.0.6";
const _ssrUtils = {
    createComponentInstance,
    setupComponent,
    renderComponentRoot,
    setCurrentRenderingInstance,
    isVNode,
    normalizeVNode
};
/**
 * SSR utils for \@vue/server-renderer. Only exposed in cjs builds.
 * @internal
 */
const ssrUtils = (_ssrUtils );

exports.customRef = reactivity.customRef;
exports.isProxy = reactivity.isProxy;
exports.isReactive = reactivity.isReactive;
exports.isReadonly = reactivity.isReadonly;
exports.isRef = reactivity.isRef;
exports.markRaw = reactivity.markRaw;
exports.proxyRefs = reactivity.proxyRefs;
exports.reactive = reactivity.reactive;
exports.readonly = reactivity.readonly;
exports.ref = reactivity.ref;
exports.shallowReactive = reactivity.shallowReactive;
exports.shallowReadonly = reactivity.shallowReadonly;
exports.shallowRef = reactivity.shallowRef;
exports.toRaw = reactivity.toRaw;
exports.toRef = reactivity.toRef;
exports.toRefs = reactivity.toRefs;
exports.triggerRef = reactivity.triggerRef;
exports.unref = reactivity.unref;
exports.camelize = shared.camelize;
exports.capitalize = shared.capitalize;
exports.toDisplayString = shared.toDisplayString;
exports.toHandlerKey = shared.toHandlerKey;
exports.BaseTransition = BaseTransition;
exports.Comment = Comment;
exports.Fragment = Fragment;
exports.KeepAlive = KeepAlive;
exports.Static = Static;
exports.Suspense = Suspense;
exports.Teleport = Teleport;
exports.Text = Text;
exports.callWithAsyncErrorHandling = callWithAsyncErrorHandling;
exports.callWithErrorHandling = callWithErrorHandling;
exports.cloneVNode = cloneVNode;
exports.computed = computed;
exports.createBlock = createBlock;
exports.createCommentVNode = createCommentVNode;
exports.createHydrationRenderer = createHydrationRenderer;
exports.createRenderer = createRenderer;
exports.createSlots = createSlots;
exports.createStaticVNode = createStaticVNode;
exports.createTextVNode = createTextVNode;
exports.createVNode = createVNode;
exports.defineAsyncComponent = defineAsyncComponent;
exports.defineComponent = defineComponent;
exports.defineEmit = defineEmit;
exports.defineProps = defineProps;
exports.getCurrentInstance = getCurrentInstance;
exports.getTransitionRawChildren = getTransitionRawChildren;
exports.h = h;
exports.handleError = handleError;
exports.initCustomFormatter = initCustomFormatter;
exports.inject = inject;
exports.isVNode = isVNode;
exports.mergeProps = mergeProps;
exports.nextTick = nextTick;
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.onUnmounted = onUnmounted;
exports.onUpdated = onUpdated;
exports.openBlock = openBlock;
exports.popScopeId = popScopeId;
exports.provide = provide;
exports.pushScopeId = pushScopeId;
exports.queuePostFlushCb = queuePostFlushCb;
exports.registerRuntimeCompiler = registerRuntimeCompiler;
exports.renderList = renderList;
exports.renderSlot = renderSlot;
exports.resolveComponent = resolveComponent;
exports.resolveDirective = resolveDirective;
exports.resolveDynamicComponent = resolveDynamicComponent;
exports.resolveTransitionHooks = resolveTransitionHooks;
exports.setBlockTracking = setBlockTracking;
exports.setDevtoolsHook = setDevtoolsHook;
exports.setTransitionHooks = setTransitionHooks;
exports.ssrContextKey = ssrContextKey;
exports.ssrUtils = ssrUtils;
exports.toHandlers = toHandlers;
exports.transformVNodeArgs = transformVNodeArgs;
exports.useContext = useContext;
exports.useSSRContext = useSSRContext;
exports.useTransitionState = useTransitionState;
exports.version = version;
exports.warn = warn;
exports.watch = watch;
exports.watchEffect = watchEffect;
exports.withCtx = withCtx;
exports.withDirectives = withDirectives;
exports.withScopeId = withScopeId;