'use strict'; Object.defineProperty(exports, '__esModule', { value: true }); var reactivity = require('@vue/reactivity'); var shared = require('@vue/shared'); let buffer = []; function setDevtoolsHook(hook, target) { var _a, _b; exports.devtools = hook; if (exports.devtools) { exports.devtools.enabled = true; buffer.forEach(({ event, args }) => exports.devtools.emit(event, ...args)); buffer = []; } else if ( // handle late devtools injection - only do this if we are in an actual // browser environment to avoid the timer handle stalling test runner exit // (#4815) // eslint-disable-next-line no-restricted-globals typeof window !== 'undefined' && // some envs mock window but not fully window.HTMLElement && // also exclude jsdom !((_b = (_a = window.navigator) === null || _a === void 0 ? void 0 : _a.userAgent) === null || _b === void 0 ? void 0 : _b.includes('jsdom'))) { const replay = (target.__VUE_DEVTOOLS_HOOK_REPLAY__ = target.__VUE_DEVTOOLS_HOOK_REPLAY__ || []); replay.push((newHook) => { setDevtoolsHook(newHook, target); }); // clear buffer after 3s - the user probably doesn't have devtools installed // at all, and keeping the buffer will cause memory leaks (#4738) setTimeout(() => { if (!exports.devtools) { target.__VUE_DEVTOOLS_HOOK_REPLAY__ = null; buffer = []; } }, 3000); } else { buffer = []; } } 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); } } let handlerName; let handler = props[(handlerName = shared.toHandlerKey(event))] || // also try camelCase event handler (#2249) props[(handlerName = shared.toHandlerKey(shared.camelize(event)))]; // for v-model update:xxx events, also trigger kebab-case equivalent // for props passed via kebab-case if (!handler && isModelListener) { handler = props[(handlerName = shared.toHandlerKey(shared.hyphenate(event)))]; } if (handler) { callWithAsyncErrorHandling(handler, instance, 6 /* COMPONENT_EVENT_HANDLER */, args); } const onceHandler = props[handlerName + `Once`]; if (onceHandler) { if (!instance.emitted) { instance.emitted = {}; } else if (instance.emitted[handlerName]) { return; } instance.emitted[handlerName] = true; callWithAsyncErrorHandling(onceHandler, instance, 6 /* COMPONENT_EVENT_HANDLER */, args); } } function normalizeEmitsOptions(comp, appContext, asMixin = false) { const cache = appContext.emitsCache; const cached = cache.get(comp); if (cached !== undefined) { return cached; } const raw = comp.emits; let normalized = {}; // apply mixin/extends props let hasExtends = false; if (!shared.isFunction(comp)) { const extendEmits = (raw) => { const normalizedFromExtend = normalizeEmitsOptions(raw, appContext, true); if (normalizedFromExtend) { hasExtends = true; shared.extend(normalized, normalizedFromExtend); } }; if (!asMixin && appContext.mixins.length) { appContext.mixins.forEach(extendEmits); } if (comp.extends) { extendEmits(comp.extends); } if (comp.mixins) { comp.mixins.forEach(extendEmits); } } if (!raw && !hasExtends) { cache.set(comp, null); return null; } if (shared.isArray(raw)) { raw.forEach(key => (normalized[key] = null)); } else { shared.extend(normalized, raw); } cache.set(comp, normalized); return normalized; } // Check if an incoming prop key is a declared emit event listener. // e.g. With `emits: { click: null }`, props named `onClick` and `onclick` are // both considered matched listeners. function isEmitListener(options, key) { if (!options || !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; let currentScopeId = null; /** * Note: rendering calls maybe nested. The function returns the parent rendering * instance if present, which should be restored after the render is done: * * ```js * const prev = setCurrentRenderingInstance(i) * // ...render * setCurrentRenderingInstance(prev) * ``` */ function setCurrentRenderingInstance(instance) { const prev = currentRenderingInstance; currentRenderingInstance = instance; currentScopeId = (instance && instance.type.__scopeId) || null; return prev; } /** * Set scope id when creating hoisted vnodes. * @private compiler helper */ function pushScopeId(id) { currentScopeId = id; } /** * Technically we no longer need this after 3.0.8 but we need to keep the same * API for backwards compat w/ code generated by compilers. * @private */ function popScopeId() { currentScopeId = null; } /** * Only for backwards compat * @private */ const withScopeId = (_id) => withCtx; /** * Wrap a slot function to memoize current rendering instance * @private compiler helper */ function withCtx(fn, ctx = currentRenderingInstance, isNonScopedSlot // false only ) { if (!ctx) return fn; // already normalized if (fn._n) { return fn; } const renderFnWithContext = (...args) => { // If a user calls a compiled slot inside a template expression (#1745), it // can mess up block tracking, so by default we disable block tracking and // force bail out when invoking a compiled slot (indicated by the ._d flag). // This isn't necessary if rendering a compiled ``, so we flip the // ._d flag off when invoking the wrapped fn inside `renderSlot`. if (renderFnWithContext._d) { setBlockTracking(-1); } const prevInstance = setCurrentRenderingInstance(ctx); const res = fn(...args); setCurrentRenderingInstance(prevInstance); if (renderFnWithContext._d) { setBlockTracking(1); } return res; }; // mark normalized to avoid duplicated wrapping renderFnWithContext._n = true; // mark this as compiled by default // this is used in vnode.ts -> normalizeChildren() to set the slot // rendering flag. renderFnWithContext._c = true; // disable block tracking by default renderFnWithContext._d = true; return renderFnWithContext; } function markAttrsAccessed() { } function renderComponentRoot(instance) { const { type: Component, vnode, proxy, withProxy, props, propsOptions: [propsOptions], slots, attrs, emit, render, renderCache, data, setupState, ctx, inheritAttrs } = instance; let result; let fallthroughAttrs; const prev = setCurrentRenderingInstance(instance); try { 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); } } catch (err) { blockStack.length = 0; handleError(err, instance, 1 /* RENDER_FUNCTION */); result = createVNode(Comment); } // attr merging // in dev mode, comments are preserved, and it's possible for a template // to have comments along side the root element which makes it a fragment let root = result; if (fallthroughAttrs && inheritAttrs !== false) { const keys = Object.keys(fallthroughAttrs); const { shapeFlag } = root; if (keys.length) { if (shapeFlag & (1 /* ELEMENT */ | 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); } } } // inherit directives if (vnode.dirs) { root.dirs = root.dirs ? root.dirs.concat(vnode.dirs) : vnode.dirs; } // inherit transition data if (vnode.transition) { root.transition = vnode.transition; } { result = root; } setCurrentRenderingInstance(prev); return result; } 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; }; 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 = { name: 'Suspense', // In order to make Suspense tree-shakable, we need to avoid importing it // directly in the renderer. The renderer checks for the __isSuspense flag // on a vnode's type and calls the `process` method, passing in renderer // internals. __isSuspense: true, process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, // platform-specific impl passed from renderer rendererInternals) { if (n1 == null) { mountSuspense(n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, rendererInternals); } else { patchSuspense(n1, n2, container, anchor, parentComponent, isSVG, slotScopeIds, optimized, rendererInternals); } }, hydrate: hydrateSuspense, create: createSuspenseBoundary, normalize: normalizeSuspenseChildren }; // Force-casted public typing for h and TSX props inference const Suspense = (SuspenseImpl ); function triggerEvent(vnode, name) { const eventListener = vnode.props && vnode.props[name]; if (shared.isFunction(eventListener)) { eventListener(); } } function mountSuspense(vnode, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, rendererInternals) { const { p: patch, o: { createElement } } = rendererInternals; const hiddenContainer = createElement('div'); const suspense = (vnode.suspense = createSuspenseBoundary(vnode, parentSuspense, parentComponent, container, hiddenContainer, anchor, isSVG, slotScopeIds, optimized, rendererInternals)); // start mounting the content subtree in an off-dom container patch(null, (suspense.pendingBranch = vnode.ssContent), hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds); // now check if we have encountered any async deps if (suspense.deps > 0) { // has async // invoke @fallback event triggerEvent(vnode, 'onPending'); triggerEvent(vnode, 'onFallback'); // mount the fallback tree patch(null, vnode.ssFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context isSVG, slotScopeIds); setActiveBranch(suspense, vnode.ssFallback); } else { // Suspense has no async deps. Just resolve. suspense.resolve(); } } function patchSuspense(n1, n2, container, anchor, parentComponent, isSVG, slotScopeIds, optimized, { p: patch, um: unmount, o: { createElement } }) { const suspense = (n2.suspense = n1.suspense); suspense.vnode = n2; n2.el = n1.el; const newBranch = n2.ssContent; const newFallback = n2.ssFallback; const { activeBranch, pendingBranch, isInFallback, isHydrating } = suspense; if (pendingBranch) { suspense.pendingBranch = newBranch; if (isSameVNodeType(newBranch, pendingBranch)) { // same root type but content may have changed. patch(pendingBranch, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds, optimized); if (suspense.deps <= 0) { suspense.resolve(); } else if (isInFallback) { patch(activeBranch, newFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context isSVG, slotScopeIds, optimized); setActiveBranch(suspense, newFallback); } } else { // toggled before pending tree is resolved suspense.pendingId++; if (isHydrating) { // if toggled before hydration is finished, the current DOM tree is // no longer valid. set it as the active branch so it will be unmounted // when resolved suspense.isHydrating = false; suspense.activeBranch = pendingBranch; } else { unmount(pendingBranch, parentComponent, suspense); } // increment pending ID. this is used to invalidate async callbacks // reset suspense state suspense.deps = 0; // discard effects from pending branch suspense.effects.length = 0; // discard previous container suspense.hiddenContainer = createElement('div'); if (isInFallback) { // already in fallback state patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds, optimized); if (suspense.deps <= 0) { suspense.resolve(); } else { patch(activeBranch, newFallback, container, anchor, parentComponent, null, // fallback tree will not have suspense context isSVG, slotScopeIds, optimized); setActiveBranch(suspense, newFallback); } } else if (activeBranch && isSameVNodeType(newBranch, activeBranch)) { // toggled "back" to current active branch patch(activeBranch, newBranch, container, anchor, parentComponent, suspense, isSVG, slotScopeIds, optimized); // force resolve suspense.resolve(true); } else { // switched to a 3rd branch patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds, optimized); if (suspense.deps <= 0) { suspense.resolve(); } } } } else { if (activeBranch && isSameVNodeType(newBranch, activeBranch)) { // root did not change, just normal patch patch(activeBranch, newBranch, container, anchor, parentComponent, suspense, isSVG, slotScopeIds, optimized); setActiveBranch(suspense, newBranch); } else { // root node toggled // invoke @pending event triggerEvent(n2, 'onPending'); // mount pending branch in off-dom container suspense.pendingBranch = newBranch; suspense.pendingId++; patch(null, newBranch, suspense.hiddenContainer, null, parentComponent, suspense, isSVG, slotScopeIds, optimized); if (suspense.deps <= 0) { // incoming branch has no async deps, resolve now. suspense.resolve(); } else { const { timeout, pendingId } = suspense; if (timeout > 0) { setTimeout(() => { if (suspense.pendingId === pendingId) { suspense.fallback(newFallback); } }, timeout); } else if (timeout === 0) { suspense.fallback(newFallback); } } } } } function createSuspenseBoundary(vnode, parent, parentComponent, container, hiddenContainer, anchor, isSVG, slotScopeIds, 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 triggerEvent(vnode, 'onResolve'); }, fallback(fallbackVNode) { if (!suspense.pendingBranch) { return; } const { vnode, activeBranch, parentComponent, container, isSVG } = suspense; // invoke @fallback event triggerEvent(vnode, 'onFallback'); const anchor = next(activeBranch); const mountFallback = () => { if (!suspense.isInFallback) { return; } // mount the fallback tree patch(null, fallbackVNode, container, anchor, parentComponent, null, // fallback tree will not have suspense context isSVG, slotScopeIds, optimized); setActiveBranch(suspense, fallbackVNode); }; const delayEnter = fallbackVNode.transition && fallbackVNode.transition.mode === 'out-in'; if (delayEnter) { activeBranch.transition.afterLeave = mountFallback; } suspense.isInFallback = true; // unmount current active branch unmount(activeBranch, parentComponent, null, // no suspense so unmount hooks fire now true // shouldRemove ); if (!delayEnter) { mountFallback(); } }, move(container, anchor, type) { suspense.activeBranch && move(suspense.activeBranch, container, anchor, type); suspense.container = container; }, next() { return suspense.activeBranch && next(suspense.activeBranch); }, registerDep(instance, setupRenderEffect) { const isInPendingSuspense = !!suspense.pendingBranch; if (isInPendingSuspense) { suspense.deps++; } const hydratedEl = instance.vnode.el; instance .asyncDep.catch(err => { handleError(err, instance, 0 /* 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, slotScopeIds, optimized, rendererInternals, hydrateNode) { /* eslint-disable no-restricted-globals */ const suspense = (vnode.suspense = createSuspenseBoundary(vnode, parentSuspense, parentComponent, node.parentNode, document.createElement('div'), null, isSVG, slotScopeIds, optimized, rendererInternals, true /* hydrating */)); // there are two possible scenarios for server-rendered suspense: // - success: ssr content should be fully resolved // - failure: ssr content should be the fallback branch. // however, on the client we don't really know if it has failed or not // attempt to hydrate the DOM assuming it has succeeded, but we still // need to construct a suspense boundary first const result = hydrateNode(node, (suspense.pendingBranch = vnode.ssContent), parentComponent, suspense, slotScopeIds, optimized); if (suspense.deps === 0) { suspense.resolve(); } return result; /* eslint-enable no-restricted-globals */ } function normalizeSuspenseChildren(vnode) { const { shapeFlag, children } = vnode; const isSlotChildren = shapeFlag & 32 /* SLOTS_CHILDREN */; vnode.ssContent = normalizeSuspenseSlot(isSlotChildren ? children.default : children); vnode.ssFallback = isSlotChildren ? normalizeSuspenseSlot(children.fallback) : createVNode(Comment); } function normalizeSuspenseSlot(s) { let block; if (shared.isFunction(s)) { const trackBlock = isBlockTreeEnabled && s._c; if (trackBlock) { // disableTracking: false // allow block tracking for compiled slots // (see ./componentRenderContext.ts) s._d = false; openBlock(); } s = s(); if (trackBlock) { s._d = true; block = currentBlock; closeBlock(); } } if (shared.isArray(s)) { const singleChild = filterSingleRoot(s); s = singleChild; } s = normalizeVNode(s); if (block && !s.dynamicChildren) { s.dynamicChildren = block.filter(c => c !== s); } return s; } function queueEffectWithSuspense(fn, suspense) { if (suspense && suspense.pendingBranch) { if (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); } } 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.call(instance.proxy) : defaultValue; } else ; } } 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 , 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' && innerChild.type !== Comment) { leavingHooks.delayLeave = (el, earlyRemove, delayedLeave) => { const leavingVNodesCache = getLeavingNodesForType(state, oldInnerChild); leavingVNodesCache[String(oldInnerChild.key)] = oldInnerChild; // early removal callback el._leaveCb = () => { earlyRemove(); el._leaveCb = undefined; delete enterHooks.delayedLeave; }; enterHooks.delayedLeave = delayedLeave; }; } } return child; }; } }; // export the public type for h/tsx inference // also to avoid inline import() in generated d.ts files const BaseTransition = BaseTransitionImpl; function getLeavingNodesForType(state, vnode) { const { leavingVNodes } = state; let leavingVNodesCache = leavingVNodes.get(vnode.type); if (!leavingVNodesCache) { leavingVNodesCache = Object.create(null); leavingVNodes.set(vnode.type, leavingVNodesCache); } return leavingVNodesCache; } // The transition hooks are attached to the vnode as vnode.transition // and will be called at appropriate timing in the renderer. function resolveTransitionHooks(vnode, props, state, instance) { const { appear, mode, persisted = false, onBeforeEnter, onEnter, onAfterEnter, onEnterCancelled, onBeforeLeave, onLeave, onAfterLeave, onLeaveCancelled, onBeforeAppear, onAppear, onAfterAppear, onAppearCancelled } = props; const key = String(vnode.key); const leavingVNodesCache = getLeavingNodesForType(state, vnode); const callHook = (hook, args) => { hook && callWithAsyncErrorHandling(hook, instance, 9 /* 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; } // 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({ name: 'AsyncComponentWrapper', __asyncLoader: load, get __asyncResolved() { return resolvedComp; }, setup() { const instance = currentInstance; // already resolved if (resolvedComp) { return () => createInnerComp(resolvedComp, instance); } const onError = (err) => { pendingRequest = null; handleError(err, instance, 13 /* 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; if (instance.parent && isKeepAlive(instance.parent.vnode)) { // parent is keep-alive, force update so the loaded component's // name is taken into account queueJob(instance.parent.update); } }) .catch(err => { onError(err); error.value = err; }); return () => { if (loaded.value && resolvedComp) { return createInnerComp(resolvedComp, instance); } else if (error.value && errorComponent) { return createVNode(errorComponent, { error: error.value }); } else if (loadingComponent && !delayed.value) { return createVNode(loadingComponent); } }; } }); } function createInnerComp(comp, { 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 isKeepAlive = (vnode) => vnode.type.__isKeepAlive; const KeepAliveImpl = { name: `KeepAlive`, // Marker for special handling inside the renderer. We are not using a === // check directly on KeepAlive in the renderer, because importing it directly // would prevent it from being tree-shaken. __isKeepAlive: true, props: { include: [String, RegExp, Array], exclude: [String, RegExp, Array], max: [String, Number] }, setup(props, { slots }) { const instance = getCurrentInstance(); // KeepAlive communicates with the instantiated renderer via the // ctx where the renderer passes in its internals, // and the KeepAlive instance exposes activate/deactivate implementations. // The whole point of this is to avoid importing KeepAlive directly in the // renderer to facilitate tree-shaking. const sharedContext = instance.ctx; // if the internal renderer is not registered, it indicates that this is server-side rendering, // for KeepAlive, we just need to render its children if (!sharedContext.renderer) { return slots.default; } const cache = new Map(); const keys = new Set(); let current = null; const parentSuspense = instance.suspense; const { renderer: { p: patch, m: move, um: _unmount, o: { createElement } } } = sharedContext; const storageContainer = createElement('div'); sharedContext.activate = (vnode, container, anchor, isSVG, optimized) => { const instance = vnode.component; move(vnode, container, anchor, 0 /* ENTER */, parentSuspense); // in case props have changed patch(instance.vnode, vnode, container, anchor, instance, parentSuspense, isSVG, vnode.slotScopeIds, optimized); queuePostRenderEffect(() => { instance.isDeactivated = false; if (instance.a) { 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; // for async components, name check should be based in its loaded // inner component if available const name = getComponentName(isAsyncWrapper(vnode) ? vnode.type.__asyncResolved || {} : comp); const { include, exclude, max } = props; if ((include && (!name || !matches(include, name))) || (exclude && name && matches(exclude, name))) { current = vnode; return rawVNode; } const key = vnode.key == null ? comp : vnode.key; const cachedVNode = cache.get(key); // clone vnode if it's reused because we are going to mutate it if (vnode.el) { vnode = cloneVNode(vnode); if (rawVNode.shapeFlag & 128 /* 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; } return hook(); }); injectHook(type, wrappedHook, target); // In addition to registering it on the target instance, we walk up the parent // chain and register it on all ancestor instances that are keep-alive roots. // This avoids the need to walk the entire component tree when invoking these // hooks, and more importantly, avoids the need to track child components in // arrays. if (target) { let current = target.parent; while (current && current.parent) { if (isKeepAlive(current.parent.vnode)) { injectToKeepAliveRoot(wrappedHook, type, target, current); } current = current.parent; } } } function injectToKeepAliveRoot(hook, type, target, keepAliveRoot) { // injectHook wraps the original for error handling, so make sure to remove // the wrapped version. const injected = injectHook(type, hook, keepAliveRoot, true /* prepend */); onUnmounted(() => { 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; } 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); unsetCurrentInstance(); 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 (except for serverPrefetch) (!isInSSRComponentSetup || lifecycle === "sp" /* SERVER_PREFETCH */) && 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 onServerPrefetch = createHook("sp" /* SERVER_PREFETCH */); const onRenderTriggered = createHook("rtg" /* RENDER_TRIGGERED */); const onRenderTracked = createHook("rtc" /* RENDER_TRACKED */); function onErrorCaptured(hook, target = currentInstance) { injectHook("ec" /* ERROR_CAPTURED */, hook, target); } let shouldCacheAccess = true; function applyOptions(instance) { const options = resolveMergedOptions(instance); const publicThis = instance.proxy; const ctx = instance.ctx; // do not cache property access on public proxy during state initialization shouldCacheAccess = false; // call beforeCreate first before accessing other options since // the hook may mutate resolved options (#2791) if (options.beforeCreate) { callHook(options.beforeCreate, instance, "bc" /* BEFORE_CREATE */); } const { // state data: dataOptions, computed: computedOptions, methods, watch: watchOptions, provide: provideOptions, inject: injectOptions, // lifecycle created, beforeMount, mounted, beforeUpdate, updated, activated, deactivated, beforeDestroy, beforeUnmount, destroyed, unmounted, render, renderTracked, renderTriggered, errorCaptured, serverPrefetch, // public API expose, inheritAttrs, // assets components, directives, filters } = options; const checkDuplicateProperties = null; // options initialization order (to be consistent with Vue 2): // - props (already done outside of this function) // - inject // - methods // - data (deferred since it relies on `this` access) // - computed // - watch (deferred since it relies on `this` access) if (injectOptions) { resolveInjections(injectOptions, ctx, checkDuplicateProperties, instance.appContext.config.unwrapInjectedRef); } if (methods) { for (const key in methods) { const methodHandler = methods[key]; if (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 (dataOptions) { const data = dataOptions.call(publicThis, publicThis); if (!shared.isObject(data)) ; else { instance.data = reactivity.reactive(data); } } // state initialization complete at this point - start caching access shouldCacheAccess = true; 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 = reactivity.computed({ get, set }); Object.defineProperty(ctx, key, { enumerable: true, configurable: true, get: () => c.value, set: v => (c.value = v) }); } } if (watchOptions) { for (const key in watchOptions) { createWatcher(watchOptions[key], ctx, publicThis, key); } } if (provideOptions) { const provides = shared.isFunction(provideOptions) ? provideOptions.call(publicThis) : provideOptions; Reflect.ownKeys(provides).forEach(key => { provide(key, provides[key]); }); } if (created) { callHook(created, instance, "c" /* CREATED */); } function registerLifecycleHook(register, hook) { if (shared.isArray(hook)) { hook.forEach(_hook => register(_hook.bind(publicThis))); } else if (hook) { register(hook.bind(publicThis)); } } registerLifecycleHook(onBeforeMount, beforeMount); registerLifecycleHook(onMounted, mounted); registerLifecycleHook(onBeforeUpdate, beforeUpdate); registerLifecycleHook(onUpdated, updated); registerLifecycleHook(onActivated, activated); registerLifecycleHook(onDeactivated, deactivated); registerLifecycleHook(onErrorCaptured, errorCaptured); registerLifecycleHook(onRenderTracked, renderTracked); registerLifecycleHook(onRenderTriggered, renderTriggered); registerLifecycleHook(onBeforeUnmount, beforeUnmount); registerLifecycleHook(onUnmounted, unmounted); registerLifecycleHook(onServerPrefetch, serverPrefetch); if (shared.isArray(expose)) { if (expose.length) { const exposed = instance.exposed || (instance.exposed = {}); expose.forEach(key => { Object.defineProperty(exposed, key, { get: () => publicThis[key], set: val => (publicThis[key] = val) }); }); } else if (!instance.exposed) { instance.exposed = {}; } } // options that are handled when creating the instance but also need to be // applied from mixins if (render && instance.render === shared.NOOP) { instance.render = render; } if (inheritAttrs != null) { instance.inheritAttrs = inheritAttrs; } // asset options. if (components) instance.components = components; if (directives) instance.directives = directives; } function resolveInjections(injectOptions, ctx, checkDuplicateProperties = shared.NOOP, unwrapRef = false) { if (shared.isArray(injectOptions)) { injectOptions = normalizeInject(injectOptions); } for (const key in injectOptions) { const opt = injectOptions[key]; let injected; if (shared.isObject(opt)) { if ('default' in opt) { injected = inject(opt.from || key, opt.default, true /* treat default function as factory */); } else { injected = inject(opt.from || key); } } else { injected = inject(opt); } if (reactivity.isRef(injected)) { // TODO remove the check in 3.3 if (unwrapRef) { Object.defineProperty(ctx, key, { enumerable: true, configurable: true, get: () => injected.value, set: v => (injected.value = v) }); } else { ctx[key] = injected; } } else { ctx[key] = injected; } } } function callHook(hook, instance, type) { callWithAsyncErrorHandling(shared.isArray(hook) ? hook.map(h => h.bind(instance.proxy)) : hook.bind(instance.proxy), instance, type); } function createWatcher(raw, ctx, publicThis, key) { const getter = key.includes('.') ? createPathGetter(publicThis, key) : () => publicThis[key]; if (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 ; } /** * Resolve merged options and cache it on the component. * This is done only once per-component since the merging does not involve * instances. */ function resolveMergedOptions(instance) { const base = instance.type; const { mixins, extends: extendsOptions } = base; const { mixins: globalMixins, optionsCache: cache, config: { optionMergeStrategies } } = instance.appContext; const cached = cache.get(base); let resolved; if (cached) { resolved = cached; } else if (!globalMixins.length && !mixins && !extendsOptions) { { resolved = base; } } else { resolved = {}; if (globalMixins.length) { globalMixins.forEach(m => mergeOptions(resolved, m, optionMergeStrategies, true)); } mergeOptions(resolved, base, optionMergeStrategies); } cache.set(base, resolved); return resolved; } function mergeOptions(to, from, strats, asMixin = false) { const { mixins, extends: extendsOptions } = from; if (extendsOptions) { mergeOptions(to, extendsOptions, strats, true); } if (mixins) { mixins.forEach((m) => mergeOptions(to, m, strats, true)); } for (const key in from) { if (asMixin && key === 'expose') ; else { const strat = internalOptionMergeStrats[key] || (strats && strats[key]); to[key] = strat ? strat(to[key], from[key]) : from[key]; } } return to; } const internalOptionMergeStrats = { data: mergeDataFn, props: mergeObjectOptions, emits: mergeObjectOptions, // objects methods: mergeObjectOptions, computed: mergeObjectOptions, // lifecycle beforeCreate: mergeAsArray, created: mergeAsArray, beforeMount: mergeAsArray, mounted: mergeAsArray, beforeUpdate: mergeAsArray, updated: mergeAsArray, beforeDestroy: mergeAsArray, beforeUnmount: mergeAsArray, destroyed: mergeAsArray, unmounted: mergeAsArray, activated: mergeAsArray, deactivated: mergeAsArray, errorCaptured: mergeAsArray, serverPrefetch: mergeAsArray, // assets components: mergeObjectOptions, directives: mergeObjectOptions, // watch watch: mergeWatchOptions, // provide / inject provide: mergeDataFn, inject: mergeInject }; function mergeDataFn(to, from) { if (!from) { return to; } if (!to) { return from; } return function mergedDataFn() { return (shared.extend)(shared.isFunction(to) ? to.call(this, this) : to, shared.isFunction(from) ? from.call(this, this) : from); }; } function mergeInject(to, from) { return mergeObjectOptions(normalizeInject(to), normalizeInject(from)); } function normalizeInject(raw) { if (shared.isArray(raw)) { const res = {}; for (let i = 0; i < raw.length; i++) { res[raw[i]] = raw[i]; } return res; } return raw; } function mergeAsArray(to, from) { return to ? [...new Set([].concat(to, from))] : from; } function mergeObjectOptions(to, from) { return to ? shared.extend(shared.extend(Object.create(null), to), from) : from; } function mergeWatchOptions(to, from) { if (!to) return from; if (!from) return to; const merged = shared.extend(Object.create(null), to); for (const key in from) { merged[key] = mergeAsArray(to[key], from[key]); } return merged; } function initProps(instance, rawProps, isStateful, // result of bitwise flag comparison isSSR = false) { const props = {}; const attrs = {}; shared.def(attrs, InternalObjectKey, 1); instance.propsDefaults = Object.create(null); setFullProps(instance, rawProps, props, attrs); // ensure all declared prop keys are present for (const key in instance.propsOptions[0]) { if (!(key in props)) { props[key] = undefined; } } 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; let hasAttrsChanged = false; if ( // always force full diff in dev // - #1942 if hmr is enabled with sfc component // - vite#872 non-sfc component used by sfc component (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++) { let 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)) { if (value !== attrs[key]) { attrs[key] = value; hasAttrsChanged = true; } } else { const camelizedKey = shared.camelize(key); props[camelizedKey] = resolvePropValue(options, rawCurrentProps, camelizedKey, value, instance, false /* isAbsent */); } } else { if (value !== attrs[key]) { attrs[key] = value; hasAttrsChanged = true; } } } } } else { // full props update. if (setFullProps(instance, rawProps, props, attrs)) { hasAttrsChanged = true; } // in case of dynamic props, check if we need to delete keys from // the props object let kebabKey; for (const key in rawCurrentProps) { if (!rawProps || // for camelCase (!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, rawCurrentProps, key, undefined, instance, true /* isAbsent */); } } else { delete props[key]; } } } // in the case of functional component w/o props declaration, props and // attrs point to the same object so it should already have been updated. if (attrs !== rawCurrentProps) { for (const key in attrs) { if (!rawProps || !shared.hasOwn(rawProps, key)) { delete attrs[key]; hasAttrsChanged = true; } } } } // trigger updates for $attrs in case it's used in component slots if (hasAttrsChanged) { reactivity.trigger(instance, "set" /* SET */, '$attrs'); } } function setFullProps(instance, rawProps, props, attrs) { const [options, needCastKeys] = instance.propsOptions; let hasAttrsChanged = false; let rawCastValues; if (rawProps) { for (let key in rawProps) { // key, ref are reserved and never passed down if (shared.isReservedProp(key)) { continue; } const value = rawProps[key]; // prop option names are camelized during normalization, so to support // kebab -> camel conversion here we need to camelize the key. let camelKey; if (options && shared.hasOwn(options, (camelKey = shared.camelize(key)))) { if (!needCastKeys || !needCastKeys.includes(camelKey)) { props[camelKey] = value; } else { (rawCastValues || (rawCastValues = {}))[camelKey] = value; } } else if (!isEmitListener(instance.emitsOptions, key)) { if (!(key in attrs) || value !== attrs[key]) { attrs[key] = value; hasAttrsChanged = true; } } } } if (needCastKeys) { const rawCurrentProps = reactivity.toRaw(props); const castValues = rawCastValues || shared.EMPTY_OBJ; for (let i = 0; i < needCastKeys.length; i++) { const key = needCastKeys[i]; props[key] = resolvePropValue(options, rawCurrentProps, key, castValues[key], instance, !shared.hasOwn(castValues, key)); } } return hasAttrsChanged; } function resolvePropValue(options, props, key, value, instance, isAbsent) { 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)) { const { propsDefaults } = instance; if (key in propsDefaults) { value = propsDefaults[key]; } else { setCurrentInstance(instance); value = propsDefaults[key] = defaultValue.call(null, props); unsetCurrentInstance(); } } else { value = defaultValue; } } // boolean casting if (opt[0 /* shouldCast */]) { if (isAbsent && !hasDefault) { value = false; } else if (opt[1 /* shouldCastTrue */] && (value === '' || value === shared.hyphenate(key))) { value = true; } } } return value; } function normalizePropsOptions(comp, appContext, asMixin = false) { const cache = appContext.propsCache; const cached = cache.get(comp); if (cached) { return cached; } const raw = comp.props; const normalized = {}; const needCastKeys = []; // apply mixin/extends props let hasExtends = false; if (!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) { cache.set(comp, shared.EMPTY_ARR); return 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); } } } } } const res = [normalized, needCastKeys]; cache.set(comp, res); return res; } function validatePropName(key) { if (key[0] !== '$') { return true; } return false; } // use function string name to check type constructors // so that it works across vms / iframes. function getType(ctor) { const match = ctor && ctor.toString().match(/^\s*function (\w+)/); return match ? match[1] : ctor === null ? 'null' : ''; } function isSameType(a, b) { return getType(a) === getType(b); } function getTypeIndex(type, expectedTypes) { if (shared.isArray(expectedTypes)) { return expectedTypes.findIndex(t => isSameType(t, type)); } else if (shared.isFunction(expectedTypes)) { return isSameType(expectedTypes, type) ? 0 : -1; } return -1; } const isInternalKey = (key) => key[0] === '_' || key === '$stable'; const normalizeSlotValue = (value) => shared.isArray(value) ? value.map(normalizeVNode) : [normalizeVNode(value)]; const normalizeSlot = (key, rawSlot, ctx) => { const normalized = withCtx((...args) => { return normalizeSlotValue(rawSlot(...args)); }, ctx); normalized._c = false; return normalized; }; const normalizeObjectSlots = (rawSlots, slots, instance) => { const ctx = rawSlots._ctx; for (const key in rawSlots) { if (isInternalKey(key)) continue; const value = rawSlots[key]; if (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) { // users can get the shallow readonly version of the slots object through `this.$slots`, // we should avoid the proxy object polluting the slots of the internal instance instance.slots = reactivity.toRaw(children); // make compiler marker non-enumerable shared.def(children, '_', type); } else { normalizeObjectSlots(children, (instance.slots = {})); } } else { instance.slots = {}; if (children) { normalizeVNodeSlots(instance, children); } } shared.def(instance.slots, InternalObjectKey, 1); }; const updateSlots = (instance, children, optimized) => { const { vnode, slots } = instance; let needDeletionCheck = true; let deletionComparisonTarget = shared.EMPTY_OBJ; if (vnode.shapeFlag & 32 /* SLOTS_CHILDREN */) { const type = children._; if (type) { // compiled slots. if (optimized && type === 1 /* STABLE */) { // compiled AND stable. // no need to update, and skip stale slots removal. needDeletionCheck = false; } else { // compiled but dynamic (v-if/v-for on slots) - update slots, but skip // normalization. shared.extend(slots, children); // #2893 // when rendering the optimized slots by manually written render function, // we need to delete the `slots._` flag if necessary to make subsequent updates reliable, // i.e. let the `renderSlot` create the bailed Fragment if (!optimized && type === 1 /* STABLE */) { delete slots._; } } } else { needDeletionCheck = !children.$stable; normalizeObjectSlots(children, slots); } deletionComparisonTarget = children; } else if (children) { // non slot object children (direct value) passed to a component normalizeVNodeSlots(instance, children); deletionComparisonTarget = { default: 1 }; } // delete stale slots if (needDeletionCheck) { for (const key in slots) { if (!isInternalKey(key) && !(key in deletionComparisonTarget)) { delete slots[key]; } } } }; /** 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 }; } if (dir.deep) { traverse(value); } bindings.push({ dir, instance, value, oldValue: void 0, arg, modifiers }); } return vnode; } function invokeDirectiveHook(vnode, prevVNode, instance, name) { const bindings = vnode.dirs; const oldBindings = prevVNode && prevVNode.dirs; for (let i = 0; i < bindings.length; i++) { const binding = bindings[i]; if (oldBindings) { binding.oldValue = oldBindings[i].value; } let hook = binding.dir[name]; if (hook) { // disable tracking inside all lifecycle hooks // since they can potentially be called inside effects. reactivity.pauseTracking(); callWithAsyncErrorHandling(hook, instance, 8 /* DIRECTIVE_HOOK */, [ vnode.el, binding, vnode, prevVNode ]); reactivity.resetTracking(); } } } function createAppContext() { return { app: null, config: { isNativeTag: shared.NO, performance: false, globalProperties: {}, optionMergeStrategies: {}, errorHandler: undefined, warnHandler: undefined, compilerOptions: {} }, mixins: [], components: {}, directives: {}, provides: Object.create(null), optionsCache: new WeakMap(), propsCache: new WeakMap(), emitsCache: new WeakMap() }; } let uid = 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, _instance: null, 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); } } 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, isSVG) { 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, isSVG); } isMounted = true; app._container = rootContainer; rootContainer.__vue_app__ = app; return getExposeProxy(vnode.component) || 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; }; } /** * Function for handling a template ref */ function setRef(rawRef, oldRawRef, parentSuspense, vnode, isUnmount = false) { if (shared.isArray(rawRef)) { rawRef.forEach((r, i) => setRef(r, oldRawRef && (shared.isArray(oldRawRef) ? oldRawRef[i] : oldRawRef), parentSuspense, vnode, isUnmount)); return; } if (isAsyncWrapper(vnode) && !isUnmount) { // when mounting async components, nothing needs to be done, // because the template ref is forwarded to inner component return; } const refValue = vnode.shapeFlag & 4 /* STATEFUL_COMPONENT */ ? getExposeProxy(vnode.component) || vnode.component.proxy : vnode.el; const value = isUnmount ? null : refValue; 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; // dynamic ref changed. 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.isFunction(ref)) { callWithErrorHandling(ref, owner, 12 /* FUNCTION_REF */, [value, refs]); } else { const _isString = shared.isString(ref); const _isRef = reactivity.isRef(ref); if (_isString || _isRef) { const doSet = () => { if (rawRef.f) { const existing = _isString ? refs[ref] : ref.value; if (isUnmount) { shared.isArray(existing) && shared.remove(existing, refValue); } else { if (!shared.isArray(existing)) { if (_isString) { refs[ref] = [refValue]; } else { ref.value = [refValue]; if (rawRef.k) refs[rawRef.k] = ref.value; } } else if (!existing.includes(refValue)) { existing.push(refValue); } } } else if (_isString) { refs[ref] = value; if (shared.hasOwn(setupState, ref)) { setupState[ref] = value; } } else if (reactivity.isRef(ref)) { ref.value = value; if (rawRef.k) refs[rawRef.k] = value; } else ; }; if (value) { doSet.id = -1; queuePostRenderEffect(doSet, parentSuspense); } else { doSet(); } } } } 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) => { if (!container.hasChildNodes()) { patch(null, vnode, container); flushPostFlushCbs(); return; } hasMismatch = false; hydrateNode(container.firstChild, vnode, null, 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, slotScopeIds, optimized = false) => { const isFragmentStart = isComment(node) && node.data === '['; const onMismatch = () => handleMismatch(node, vnode, parentComponent, parentSuspense, slotScopeIds, 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, slotScopeIds, optimized); } break; default: if (shapeFlag & 1 /* ELEMENT */) { if (domType !== 1 /* ELEMENT */ || vnode.type.toLowerCase() !== node.tagName.toLowerCase()) { nextNode = onMismatch(); } else { nextNode = hydrateElement(node, vnode, parentComponent, parentSuspense, slotScopeIds, 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. vnode.slotScopeIds = slotScopeIds; const container = parentNode(node); mountComponent(vnode, container, null, parentComponent, parentSuspense, isSVGContainer(container), optimized); // component may be async, so in the case of fragments we cannot rely // on component's rendered output to determine the end of the fragment // instead, we do a lookahead to find the end anchor node. nextNode = isFragmentStart ? locateClosingAsyncAnchor(node) : nextSibling(node); // #3787 // if component is async, it may get moved / unmounted before its // inner component is loaded, so we need to give it a placeholder // vnode that matches its adopted DOM. if (isAsyncWrapper(vnode)) { let subTree; if (isFragmentStart) { subTree = createVNode(Fragment); subTree.anchor = nextNode ? nextNode.previousSibling : container.lastChild; } else { subTree = node.nodeType === 3 ? createTextVNode('') : createVNode('div'); } subTree.el = node; vnode.component.subTree = subTree; } } else if (shapeFlag & 64 /* TELEPORT */) { if (domType !== 8 /* COMMENT */) { nextNode = onMismatch(); } else { nextNode = vnode.type.hydrate(node, vnode, parentComponent, parentSuspense, slotScopeIds, optimized, rendererInternals, hydrateChildren); } } else if (shapeFlag & 128 /* SUSPENSE */) { nextNode = vnode.type.hydrate(node, vnode, parentComponent, parentSuspense, isSVGContainer(parentNode(node)), slotScopeIds, optimized, rendererInternals, hydrateNode); } else ; } if (ref != null) { setRef(ref, null, parentSuspense, vnode); } return nextNode; }; const hydrateElement = (el, vnode, parentComponent, parentSuspense, slotScopeIds, optimized) => { optimized = optimized || !!vnode.dynamicChildren; const { type, props, patchFlag, shapeFlag, dirs } = vnode; // #4006 for form elements with non-string v-model value bindings // e.g.