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'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 = /*#__PURE__*/ Promise.resolve();
let currentFlushPromise = null;
let currentPreFlushParentJob = null;
function nextTick(fn) {
const p = currentFlushPromise || resolvedPromise;
return fn ? p.then(this ? fn.bind(this) : fn) : p;
}
// #2768
// Use binary-search to find a suitable position in the queue,
// so that the queue maintains the increasing order of job's id,
// which can prevent the job from being skipped and also can avoid repeated patching.
function findInsertionIndex(id) {
// the start index should be `flushIndex + 1`
let start = flushIndex + 1;
let end = queue.length;
while (start < end) {
const middle = (start + end) >>> 1;
const middleJobId = getId(queue[middle]);
middleJobId < id ? (start = middle + 1) : (end = middle);
}
return start;
}
function queueJob(job) {
// the dedupe search uses the startIndex argument of Array.includes()
// by default the search index includes the current job that is being run
// so it cannot recursively trigger itself again.
// if the job is a watch() callback, the search will start with a +1 index to
// allow it recursively trigger itself - it is the user's responsibility to
// ensure it doesn't end up in an infinite loop.
if ((!queue.length ||
!queue.includes(job, isFlushing && job.allowRecurse ? flushIndex + 1 : flushIndex)) &&
job !== currentPreFlushParentJob) {
if (job.id == null) {
queue.push(job);
}
else {
queue.splice(findInsertionIndex(job.id), 0, job);
}
queueFlush();
}
}
function queueFlush() {
if (!isFlushing && !isFlushPending) {
isFlushPending = true;
currentFlushPromise = resolvedPromise.then(flushJobs);
}
}
function invalidateJob(job) {
const i = queue.indexOf(job);
if (i > flushIndex) {
queue.splice(i, 1);
}
}
function 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));
// conditional usage of checkRecursiveUpdate must be determined out of
// try ... catch block since Rollup by default de-optimizes treeshaking
// inside try-catch. This can leave all warning code unshaked. Although
// they would get eventually shaken by a minifier like terser, some minifiers
// would fail to do that (e.g. https://github.com/evanw/esbuild/issues/1610)
const check = shared.NOOP;
try {
for (flushIndex = 0; flushIndex < queue.length; flushIndex++) {
const job = queue[flushIndex];
if (job && job.active !== false) {
if (false && check(job)) ;
// console.log(`running:`, job.id)
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 ||
pendingPreFlushCbs.length ||
pendingPostFlushCbs.length) {
flushJobs(seen);
}
}
}
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) {
if (instance.isUnmounted)
return;
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 `<slot>`, 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 instance is at root
const provides = instance.parent == null
? instance.vnode.appContext && instance.vnode.appContext.provides
: instance.parent.provides;
if (provides && key in provides) {
// TS doesn't allow symbol as index type
return provides[key];
}
else if (arguments.length > 1) {
return treatDefaultAsFactory && shared.isFunction(defaultValue)
? defaultValue.call(instance.proxy)
: defaultValue;
}
else ;
}
}
// Simple effect.
function watchEffect(effect, options) {
return doWatch(effect, null, options);
}
function watchPostEffect(effect, options) {
return doWatch(effect, null, ({ flush: 'post' }));
}
function watchSyncEffect(effect, options) {
return doWatch(effect, null, ({ flush: 'sync' }));
}
// 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) {
const instance = currentInstance;
let getter;
let forceTrigger = false;
let isMultiSource = false;
if (reactivity.isRef(source)) {
getter = () => source.value;
forceTrigger = reactivity.isShallow(source);
}
else if (reactivity.isReactive(source)) {
getter = () => source;
deep = true;
}
else if (shared.isArray(source)) {
isMultiSource = true;
forceTrigger = source.some(reactivity.isReactive);
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 */);
}
else ;
});
}
else if (shared.isFunction(source)) {
if (cb) {
// getter with cb
getter = () => callWithErrorHandling(source, instance, 2 /* WATCH_GETTER */);
}
else {
// no cb -> simple effect
getter = () => {
if (instance && instance.isUnmounted) {
return;
}
if (cleanup) {
cleanup();
}
return callWithAsyncErrorHandling(source, instance, 3 /* WATCH_CALLBACK */, [onCleanup]);
};
}
}
else {
getter = shared.NOOP;
}
if (cb && deep) {
const baseGetter = getter;
getter = () => traverse(baseGetter());
}
let cleanup;
let onCleanup = (fn) => {
cleanup = effect.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) {
// we will also not call the invalidate callback (+ runner is not set up)
onCleanup = shared.NOOP;
if (!cb) {
getter();
}
else if (immediate) {
callWithAsyncErrorHandling(cb, instance, 3 /* WATCH_CALLBACK */, [
getter(),
isMultiSource ? [] : undefined,
onCleanup
]);
}
return shared.NOOP;
}
let oldValue = isMultiSource ? [] : INITIAL_WATCHER_VALUE;
const job = () => {
if (!effect.active) {
return;
}
if (cb) {
// watch(source, cb)
const newValue = effect.run();
if (deep ||
forceTrigger ||
(isMultiSource
? newValue.some((v, i) => shared.hasChanged(v, oldValue[i]))
: shared.hasChanged(newValue, oldValue)) ||
(false )) {
// 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,
onCleanup
]);
oldValue = newValue;
}
}
else {
// watchEffect
effect.run();
}
};
// important: mark the job as a watcher callback so that scheduler knows
// it is allowed to self-trigger (#1727)
job.allowRecurse = !!cb;
let scheduler;
if (flush === 'sync') {
scheduler = job; // the scheduler function gets called directly
}
else if (flush === 'post') {
scheduler = () => queuePostRenderEffect(job, instance && instance.suspense);
}
else {
// default: 'pre'
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 effect = new reactivity.ReactiveEffect(getter, scheduler);
// initial run
if (cb) {
if (immediate) {
job();
}
else {
oldValue = effect.run();
}
}
else if (flush === 'post') {
queuePostRenderEffect(effect.run.bind(effect), instance && instance.suspense);
}
else {
effect.run();
}
return () => {
effect.stop();
if (instance && instance.scope) {
shared.remove(instance.scope.effects, effect);
}
};
}
// this.$watch
function instanceWatch(source, value, options) {
const publicThis = this.proxy;
const getter = shared.isString(source)
? source.includes('.')
? createPathGetter(publicThis, source)
: () => publicThis[source]
: source.bind(publicThis, publicThis);
let cb;
if (shared.isFunction(value)) {
cb = value;
}
else {
cb = value.handler;
options = value;
}
const cur = currentInstance;
setCurrentInstance(this);
const res = doWatch(getter, cb.bind(publicThis), options);
if (cur) {
setCurrentInstance(cur);
}
else {
unsetCurrentInstance();
}
return res;
}
function createPathGetter(ctx, path) {
const segments = path.split('.');
return () => {
let cur = ctx;
for (let i = 0; i < segments.length && cur; i++) {
cur = cur[segments[i]];
}
return cur;
};
}
function traverse(value, seen) {
if (!shared.isObject(value) || value["__v_skip" /* SKIP */]) {
return value;
}
seen = seen || new Set();
if (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 if (shared.isPlainObject(value)) {
for (const key in value) {
traverse(value[key], seen);
}
}
return value;
}
function useTransitionState() {
const state = {
isMounted: false,
isLeaving: false,
isUnmounting: false,
leavingVNodes: new Map()
};
onMounted(() => {
state.isMounted = true;
});
onBeforeUnmount(() => {
state.isUnmounting = true;
});
return state;
}
const TransitionHookValidator = [Function, Array];
const BaseTransitionImpl = {
name: `BaseTransition`,
props: {
mode: String,
appear: Boolean,
persisted: Boolean,
// enter
onBeforeEnter: TransitionHookValidator,
onEnter: TransitionHookValidator,
onAfterEnter: TransitionHookValidator,
onEnterCancelled: TransitionHookValidator,
// leave
onBeforeLeave: TransitionHookValidator,
onLeave: TransitionHookValidator,
onAfterLeave: TransitionHookValidator,
onLeaveCancelled: TransitionHookValidator,
// appear
onBeforeAppear: TransitionHookValidator,
onAppear: TransitionHookValidator,
onAfterAppear: TransitionHookValidator,
onAppearCancelled: TransitionHookValidator
},
setup(props, { slots }) {
const instance = getCurrentInstance();
const state = useTransitionState();
let prevTransitionKey;
return () => {
const children = slots.default && getTransitionRawChildren(slots.default(), true);
if (!children || !children.length) {
return;
}
let child = children[0];
if (children.length > 1) {
// locate first non-comment child
for (const c of children) {
if (c.type !== Comment) {
child = c;
break;
}
}
}
// 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;
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' && 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, parentKey) {
let ret = [];
let keyedFragmentCount = 0;
for (let i = 0; i < children.length; i++) {
let child = children[i];
// #5360 inherit parent key in case of <template v-for>
const key = parentKey == null
? child.key
: String(parentKey) + String(child.key != null ? child.key : i);
// handle fragment children case, e.g. v-for
if (child.type === Fragment) {
if (child.patchFlag & 128 /* KEYED_FRAGMENT */)
keyedFragmentCount++;
ret = ret.concat(getTransitionRawChildren(child.children, keepComment, key));
}
// comment placeholders should be skipped, e.g. v-if
else if (keepComment || child.type !== Comment) {
ret.push(key != null ? cloneVNode(child, { key }) : child);
}
}
// #1126 if a transition children list contains multiple sub fragments, these
// fragments will be merged into a flat children array. Since each v-for
// fragment may contain different static bindings inside, we need to de-op
// these children to force full diffs to ensure correct behavior.
if (keyedFragmentCount > 1) {
for (let i = 0; i < ret.length; i++) {
ret[i].patchFlag = -2 /* 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, true);
}
function pruneCache(filter) {
cache.forEach((vnode, key) => {
const name = getComponentName(vnode.type);
if (name && (!filter || !filter(name))) {
pruneCacheEntry(key);
}
});
}
function pruneCacheEntry(key) {
const cached = cache.get(key);
if (!current || 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(',').includes(name);
}
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 = 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];
// skip if the prop key is a declared emit event listener
if (isEmitListener(instance.emitsOptions, key)) {
continue;
}
// PROPS flag guarantees rawProps to be non-null
const value = rawProps[key];
if (options) {
// attr / props separation was done on init and will be consistent
// in this code path, so just check if attrs have it.
if (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) &&
(!false ))) {
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 = getExposeProxy(internalInstance) ||
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 (!shared.isFunction(rootComponent)) {
rootComponent = Object.assign({}, rootComponent);
}
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];
if (shared.hasOwn(setupState, ref)) {
setupState[ref] = refs[ref];
}
}
else {
ref.value = [refValue];
if (rawRef.k)
refs[rawRef.k] = ref.value;
}
}
else if (!existing.includes(refValue)) {
existing.push(refValue);
}
}
}
else if (_isString) {
refs[ref] = value;
if (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. <option :value="obj">, <input type="checkbox" :true-value="1">
const forcePatchValue = (type === 'input' && dirs) || type === 'option';
// skip props & children if this is hoisted static nodes
// #5405 in dev, always hydrate children for HMR
if (forcePatchValue || patchFlag !== -1 /* HOISTED */) {
if (dirs) {
invokeDirectiveHook(vnode, null, parentComponent, 'created');
}
// props
if (props) {
if (forcePatchValue ||
!optimized ||
patchFlag & (16 /* FULL_PROPS */ | 32 /* HYDRATE_EVENTS */)) {
for (const key in props) {
if ((forcePatchValue && key.endsWith('value')) ||
(shared.isOn(key) && !shared.isReservedProp(key))) {
patchProp(el, key, null, props[key], false, undefined, parentComponent);
}
}
}
else if (props.onClick) {
// Fast path for click listeners (which is most often) to avoid
// iterating through props.
patchProp(el, 'onClick', null, props.onClick, false, undefined, parentComponent);
}
}
// vnode / directive hooks
let vnodeHooks;
if ((vnodeHooks = props && props.onVnodeBeforeMount)) {
invokeVNodeHook(vnodeHooks, parentComponent, vnode);
}
if (dirs) {
invokeDirectiveHook(vnode, null, parentComponent, 'beforeMount');
}
if ((vnodeHooks = props && props.onVnodeMounted) || dirs) {
queueEffectWithSuspense(() => {
vnodeHooks && invokeVNodeHook(vnodeHooks, parentComponent, vnode);
dirs && invokeDirectiveHook(vnode, null, parentComponent, 'mounted');
}, parentSuspense);
}
// children
if (shapeFlag & 16 /* ARRAY_CHILDREN */ &&
// skip if element has innerHTML / textContent
!(props && (props.innerHTML || props.textContent))) {
let next = hydrateChildren(el.firstChild, vnode, el, parentComponent, parentSuspense, slotScopeIds, 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, slotScopeIds, 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, slotScopeIds, optimized);
}
else if (vnode.type === Text && !vnode.children) {
continue;
}
else {
hasMismatch = true;
// the SSRed DOM didn't contain enough nodes. Mount the missing ones.
patch(null, vnode, container, null, parentComponent, parentSuspense, isSVGContainer(container), slotScopeIds);
}
}
return node;
};
const hydrateFragment = (node, vnode, parentComponent, parentSuspense, slotScopeIds, optimized) => {
const { slotScopeIds: fragmentSlotScopeIds } = vnode;
if (fragmentSlotScopeIds) {
slotScopeIds = slotScopeIds
? slotScopeIds.concat(fragmentSlotScopeIds)
: fragmentSlotScopeIds;
}
const container = parentNode(node);
const next = hydrateChildren(nextSibling(node), vnode, container, parentComponent, parentSuspense, slotScopeIds, optimized);
if (next && isComment(next) && next.data === ']') {
return nextSibling((vnode.anchor = next));
}
else {
// fragment didn't hydrate successfully, since we didn't get a end anchor
// back. This should have led to node/children mismatch warnings.
hasMismatch = true;
// since the anchor is missing, we need to create one and insert it
insert((vnode.anchor = createComment(`]`)), container, next);
return next;
}
};
const handleMismatch = (node, vnode, parentComponent, parentSuspense, slotScopeIds, isFragment) => {
hasMismatch = true;
vnode.el = null;
if (isFragment) {
// remove excessive fragment nodes
const end = locateClosingAsyncAnchor(node);
while (true) {
const next = nextSibling(node);
if (next && next !== end) {
remove(next);
}
else {
break;
}
}
}
const next = nextSibling(node);
const container = parentNode(node);
remove(node);
patch(null, vnode, container, next, parentComponent, parentSuspense, isSVGContainer(container), slotScopeIds);
return next;
};
const locateClosingAsyncAnchor = (node) => {
let match = 0;
while (node) {
node = nextSibling(node);
if (node && isComment(node)) {
if (node.data === '[')
match++;
if (node.data === ']') {
if (match === 0) {
return nextSibling(node);
}
else {
match--;
}
}
}
}
return node;
};
return [hydrate, hydrateNode];
}
const queuePostRenderEffect = queueEffectWithSuspense
;
/**
* The createRenderer function accepts two generic arguments:
* HostNode and HostElement, corresponding to Node and Element types in the
* host environment. For example, for runtime-dom, HostNode would be the DOM
* `Node` interface and HostElement would be the DOM `Element` interface.
*
* Custom renderers can pass in the platform specific types like this:
*
* ``` js
* const { render, createApp } = createRenderer<Node, Element>({
* patchProp,
* ...nodeOps
* })
* ```
*/
function createRenderer(options) {
return baseCreateRenderer(options);
}
// Separate API for creating hydration-enabled renderer.
// Hydration logic is only used when calling this function, making it
// tree-shakable.
function createHydrationRenderer(options) {
return baseCreateRenderer(options, createHydrationFunctions);
}
// implementation
function baseCreateRenderer(options, createHydrationFns) {
const target = shared.getGlobalThis();
target.__VUE__ = true;
const { insert: hostInsert, remove: hostRemove, patchProp: hostPatchProp, 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, slotScopeIds = null, optimized = !!n2.dynamicChildren) => {
if (n1 === n2) {
return;
}
// patching & not same type, unmount old tree
if (n1 && !isSameVNodeType(n1, n2)) {
anchor = getNextHostNode(n1);
unmount(n1, parentComponent, parentSuspense, true);
n1 = null;
}
if (n2.patchFlag === -2 /* 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, slotScopeIds, optimized);
break;
default:
if (shapeFlag & 1 /* ELEMENT */) {
processElement(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
else if (shapeFlag & 6 /* COMPONENT */) {
processComponent(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
else if (shapeFlag & 64 /* TELEPORT */) {
type.process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, internals);
}
else if (shapeFlag & 128 /* SUSPENSE */) {
type.process(n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, internals);
}
else ;
}
// set ref
if (ref != null && parentComponent) {
setRef(ref, n1 && n1.ref, parentSuspense, n2 || n1, !n2);
}
};
const processText = (n1, n2, container, anchor) => {
if (n1 == null) {
hostInsert((n2.el = hostCreateText(n2.children)), container, anchor);
}
else {
const el = (n2.el = n1.el);
if (n2.children !== n1.children) {
hostSetText(el, n2.children);
}
}
};
const processCommentNode = (n1, n2, container, anchor) => {
if (n1 == null) {
hostInsert((n2.el = hostCreateComment(n2.children || '')), container, anchor);
}
else {
// there's no support for dynamic comments
n2.el = n1.el;
}
};
const mountStaticNode = (n2, container, anchor, isSVG) => {
[n2.el, n2.anchor] = hostInsertStaticContent(n2.children, container, anchor, isSVG, n2.el, n2.anchor);
};
const moveStaticNode = ({ el, anchor }, container, nextSibling) => {
let next;
while (el && el !== anchor) {
next = hostNextSibling(el);
hostInsert(el, container, nextSibling);
el = next;
}
hostInsert(anchor, container, nextSibling);
};
const removeStaticNode = ({ el, anchor }) => {
let next;
while (el && el !== anchor) {
next = hostNextSibling(el);
hostRemove(el);
el = next;
}
hostRemove(anchor);
};
const processElement = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
isSVG = isSVG || n2.type === 'svg';
if (n1 == null) {
mountElement(n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
else {
patchElement(n1, n2, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
};
const mountElement = (vnode, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
let el;
let vnodeHook;
const { type, props, shapeFlag, transition, 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, props);
// 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', slotScopeIds, optimized);
}
if (dirs) {
invokeDirectiveHook(vnode, null, parentComponent, 'created');
}
// props
if (props) {
for (const key in props) {
if (key !== 'value' && !shared.isReservedProp(key)) {
hostPatchProp(el, key, null, props[key], isSVG, vnode.children, parentComponent, parentSuspense, unmountChildren);
}
}
/**
* Special case for setting value on DOM elements:
* - it can be order-sensitive (e.g. should be set *after* min/max, #2325, #4024)
* - it needs to be forced (#1471)
* #2353 proposes adding another renderer option to configure this, but
* the properties affects are so finite it is worth special casing it
* here to reduce the complexity. (Special casing it also should not
* affect non-DOM renderers)
*/
if ('value' in props) {
hostPatchProp(el, 'value', null, props.value);
}
if ((vnodeHook = props.onVnodeBeforeMount)) {
invokeVNodeHook(vnodeHook, parentComponent, vnode);
}
}
// scopeId
setScopeId(el, vnode, vnode.scopeId, slotScopeIds, 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, vnode, scopeId, slotScopeIds, parentComponent) => {
if (scopeId) {
hostSetScopeId(el, scopeId);
}
if (slotScopeIds) {
for (let i = 0; i < slotScopeIds.length; i++) {
hostSetScopeId(el, slotScopeIds[i]);
}
}
if (parentComponent) {
let subTree = parentComponent.subTree;
if (vnode === subTree) {
const parentVNode = parentComponent.vnode;
setScopeId(el, parentVNode, parentVNode.scopeId, parentVNode.slotScopeIds, parentComponent.parent);
}
}
};
const mountChildren = (children, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, start = 0) => {
for (let i = start; i < children.length; i++) {
const child = (children[i] = optimized
? cloneIfMounted(children[i])
: normalizeVNode(children[i]));
patch(null, child, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
};
const patchElement = (n1, n2, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
const el = (n2.el = n1.el);
let { patchFlag, dynamicChildren, dirs } = n2;
// #1426 take the old vnode's patch flag into account since user may clone a
// compiler-generated vnode, which de-opts to FULL_PROPS
patchFlag |= n1.patchFlag & 16 /* FULL_PROPS */;
const oldProps = n1.props || shared.EMPTY_OBJ;
const newProps = n2.props || shared.EMPTY_OBJ;
let vnodeHook;
// disable recurse in beforeUpdate hooks
parentComponent && toggleRecurse(parentComponent, false);
if ((vnodeHook = newProps.onVnodeBeforeUpdate)) {
invokeVNodeHook(vnodeHook, parentComponent, n2, n1);
}
if (dirs) {
invokeDirectiveHook(n2, n1, parentComponent, 'beforeUpdate');
}
parentComponent && toggleRecurse(parentComponent, true);
const areChildrenSVG = isSVG && n2.type !== 'foreignObject';
if (dynamicChildren) {
patchBlockChildren(n1.dynamicChildren, dynamicChildren, el, parentComponent, parentSuspense, areChildrenSVG, slotScopeIds);
}
else if (!optimized) {
// full diff
patchChildren(n1, n2, el, null, parentComponent, parentSuspense, areChildrenSVG, slotScopeIds, false);
}
if (patchFlag > 0) {
// the presence of a patchFlag means this element's render code was
// generated by the compiler and can take the fast path.
// in this path old node and new node are guaranteed to have the same shape
// (i.e. at the exact same position in the source template)
if (patchFlag & 16 /* 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];
// #1471 force patch value
if (next !== prev || key === 'value') {
hostPatchProp(el, key, prev, next, isSVG, n1.children, parentComponent, parentSuspense, unmountChildren);
}
}
}
}
// text
// This flag is matched when the element has only dynamic text children.
if (patchFlag & 1 /* TEXT */) {
if (n1.children !== n2.children) {
hostSetElementText(el, n2.children);
}
}
}
else if (!optimized && dynamicChildren == null) {
// unoptimized, full diff
patchProps(el, n2, oldProps, newProps, parentComponent, parentSuspense, isSVG);
}
if ((vnodeHook = newProps.onVnodeUpdated) || dirs) {
queuePostRenderEffect(() => {
vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, n2, n1);
dirs && invokeDirectiveHook(n2, n1, parentComponent, 'updated');
}, parentSuspense);
}
};
// The fast path for blocks.
const patchBlockChildren = (oldChildren, newChildren, fallbackContainer, parentComponent, parentSuspense, isSVG, slotScopeIds) => {
for (let i = 0; i < newChildren.length; i++) {
const oldVNode = oldChildren[i];
const newVNode = newChildren[i];
// Determine the container (parent element) for the patch.
const container =
// oldVNode may be an errored async setup() component inside Suspense
// which will not have a mounted element
oldVNode.el &&
// - In the case of a Fragment, we need to provide the actual parent
// of the Fragment itself so it can move its children.
(oldVNode.type === Fragment ||
// - In the case of different nodes, there is going to be a replacement
// which also requires the correct parent container
!isSameVNodeType(oldVNode, newVNode) ||
// - In the case of a component, it could contain anything.
oldVNode.shapeFlag & (6 /* COMPONENT */ | 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, slotScopeIds, 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];
// defer patching value
if (next !== prev && key !== 'value') {
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);
}
}
}
if ('value' in newProps) {
hostPatchProp(el, 'value', oldProps.value, newProps.value);
}
}
};
const processFragment = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
const fragmentStartAnchor = (n2.el = n1 ? n1.el : hostCreateText(''));
const fragmentEndAnchor = (n2.anchor = n1 ? n1.anchor : hostCreateText(''));
let { patchFlag, dynamicChildren, slotScopeIds: fragmentSlotScopeIds } = n2;
// check if this is a slot fragment with :slotted scope ids
if (fragmentSlotScopeIds) {
slotScopeIds = slotScopeIds
? slotScopeIds.concat(fragmentSlotScopeIds)
: fragmentSlotScopeIds;
}
if (n1 == null) {
hostInsert(fragmentStartAnchor, container, anchor);
hostInsert(fragmentEndAnchor, container, anchor);
// a fragment can only have array children
// since they are either generated by the compiler, or implicitly created
// from arrays.
mountChildren(n2.children, container, fragmentEndAnchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
else {
if (patchFlag > 0 &&
patchFlag & 64 /* STABLE_FRAGMENT */ &&
dynamicChildren &&
// #2715 the previous fragment could've been a BAILed one as a result
// of renderSlot() with no valid children
n1.dynamicChildren) {
// a stable fragment (template root or <template v-for>) doesn't need to
// patch children order, but it may contain dynamicChildren.
patchBlockChildren(n1.dynamicChildren, dynamicChildren, container, parentComponent, parentSuspense, isSVG, slotScopeIds);
if (
// #2080 if the stable fragment has a key, it's a <template v-for> that may
// get moved around. Make sure all root level vnodes inherit el.
// #2134 or if it's a component root, it may also get moved around
// as the component is being moved.
n2.key != null ||
(parentComponent && n2 === parentComponent.subTree)) {
traverseStaticChildren(n1, n2, true /* shallow */);
}
}
else {
// keyed / unkeyed, or manual fragments.
// for keyed & unkeyed, since they are compiler generated from v-for,
// each child is guaranteed to be a block so the fragment will never
// have dynamicChildren.
patchChildren(n1, n2, container, fragmentEndAnchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
}
};
const processComponent = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
n2.slotScopeIds = slotScopeIds;
if (n1 == null) {
if (n2.shapeFlag & 512 /* 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;
}
// resolve props and slots for setup context
{
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.
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) => {
const componentUpdateFn = () => {
if (!instance.isMounted) {
let vnodeHook;
const { el, props } = initialVNode;
const { bm, m, parent } = instance;
const isAsyncWrapperVNode = isAsyncWrapper(initialVNode);
toggleRecurse(instance, false);
// beforeMount hook
if (bm) {
shared.invokeArrayFns(bm);
}
// onVnodeBeforeMount
if (!isAsyncWrapperVNode &&
(vnodeHook = props && props.onVnodeBeforeMount)) {
invokeVNodeHook(vnodeHook, parent, initialVNode);
}
toggleRecurse(instance, true);
if (el && hydrateNode) {
// vnode has adopted host node - perform hydration instead of mount.
const hydrateSubTree = () => {
instance.subTree = renderComponentRoot(instance);
hydrateNode(el, instance.subTree, instance, parentSuspense, null);
};
if (isAsyncWrapperVNode) {
initialVNode.type.__asyncLoader().then(
// note: we are moving the render call into an async callback,
// which means it won't track dependencies - but it's ok because
// a server-rendered async wrapper is already in resolved state
// and it will never need to change.
() => !instance.isUnmounted && hydrateSubTree());
}
else {
hydrateSubTree();
}
}
else {
const subTree = (instance.subTree = renderComponentRoot(instance));
patch(null, subTree, container, anchor, instance, parentSuspense, isSVG);
initialVNode.el = subTree.el;
}
// mounted hook
if (m) {
queuePostRenderEffect(m, parentSuspense);
}
// onVnodeMounted
if (!isAsyncWrapperVNode &&
(vnodeHook = props && props.onVnodeMounted)) {
const scopedInitialVNode = initialVNode;
queuePostRenderEffect(() => invokeVNodeHook(vnodeHook, parent, scopedInitialVNode), parentSuspense);
}
// activated hook for keep-alive roots.
// #1742 activated hook must be accessed after first render
// since the hook may be injected by a child keep-alive
if (initialVNode.shapeFlag & 256 /* COMPONENT_SHOULD_KEEP_ALIVE */) {
instance.a && queuePostRenderEffect(instance.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;
// Disallow component effect recursion during pre-lifecycle hooks.
toggleRecurse(instance, false);
if (next) {
next.el = vnode.el;
updateComponentPreRender(instance, next, optimized);
}
else {
next = vnode;
}
// beforeUpdate hook
if (bu) {
shared.invokeArrayFns(bu);
}
// onVnodeBeforeUpdate
if ((vnodeHook = next.props && next.props.onVnodeBeforeUpdate)) {
invokeVNodeHook(vnodeHook, parent, next, vnode);
}
toggleRecurse(instance, true);
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);
}
}
};
// create reactive effect for rendering
const effect = (instance.effect = new reactivity.ReactiveEffect(componentUpdateFn, () => queueJob(instance.update), instance.scope // track it in component's effect scope
));
const update = (instance.update = effect.run.bind(effect));
update.id = instance.uid;
// allowRecurse
// #1801, #2043 component render effects should allow recursive updates
toggleRecurse(instance, true);
update();
};
const updateComponentPreRender = (instance, nextVNode, optimized) => {
nextVNode.component = instance;
const prevProps = instance.vnode.props;
instance.vnode = nextVNode;
instance.next = null;
updateProps(instance, nextVNode.props, prevProps, optimized);
updateSlots(instance, nextVNode.children, optimized);
reactivity.pauseTracking();
// props update may have triggered pre-flush watchers.
// flush them before the render update.
flushPreFlushCbs(undefined, instance.update);
reactivity.resetTracking();
};
const patchChildren = (n1, n2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized = false) => {
const c1 = n1 && n1.children;
const prevShapeFlag = n1 ? n1.shapeFlag : 0;
const c2 = n2.children;
const { patchFlag, shapeFlag } = n2;
// fast path
if (patchFlag > 0) {
if (patchFlag & 128 /* KEYED_FRAGMENT */) {
// this could be either fully-keyed or mixed (some keyed some not)
// presence of patchFlag means children are guaranteed to be arrays
patchKeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
return;
}
else if (patchFlag & 256 /* UNKEYED_FRAGMENT */) {
// unkeyed
patchUnkeyedChildren(c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
return;
}
}
// children has 3 possibilities: text, array or no children.
if (shapeFlag & 8 /* 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, slotScopeIds, optimized);
}
else {
// no new children, just unmount old
unmountChildren(c1, parentComponent, parentSuspense, true);
}
}
else {
// prev children was text OR null
// new children is array OR null
if (prevShapeFlag & 8 /* TEXT_CHILDREN */) {
hostSetElementText(container, '');
}
// mount new if array
if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
mountChildren(c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
}
}
};
const patchUnkeyedChildren = (c1, c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, 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, slotScopeIds, optimized);
}
if (oldLength > newLength) {
// remove old
unmountChildren(c1, parentComponent, parentSuspense, true, false, commonLength);
}
else {
// mount new
mountChildren(c2, container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized, commonLength);
}
};
// can be all-keyed or mixed
const patchKeyedChildren = (c1, c2, container, parentAnchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized) => {
let i = 0;
const l2 = c2.length;
let e1 = c1.length - 1; // prev ending index
let e2 = l2 - 1; // next ending index
// 1. sync from start
// (a b) c
// (a b) d e
while (i <= e1 && i <= e2) {
const n1 = c1[i];
const n2 = (c2[i] = optimized
? cloneIfMounted(c2[i])
: normalizeVNode(c2[i]));
if (isSameVNodeType(n1, n2)) {
patch(n1, n2, container, null, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
else {
break;
}
i++;
}
// 2. sync from end
// a (b c)
// d e (b c)
while (i <= e1 && i <= e2) {
const n1 = c1[e1];
const n2 = (c2[e2] = optimized
? cloneIfMounted(c2[e2])
: normalizeVNode(c2[e2]));
if (isSameVNodeType(n1, n2)) {
patch(n1, n2, container, null, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
}
else {
break;
}
e1--;
e2--;
}
// 3. common sequence + mount
// (a b)
// (a b) c
// i = 2, e1 = 1, e2 = 2
// (a b)
// c (a b)
// i = 0, e1 = -1, e2 = 0
if (i > e1) {
if (i <= e2) {
const nextPos = e2 + 1;
const anchor = nextPos < l2 ? c2[nextPos].el : parentAnchor;
while (i <= e2) {
patch(null, (c2[i] = optimized
? cloneIfMounted(c2[i])
: normalizeVNode(c2[i])), container, anchor, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
i++;
}
}
}
// 4. common sequence + unmount
// (a b) c
// (a b)
// i = 2, e1 = 2, e2 = 1
// a (b c)
// (b c)
// i = 0, e1 = 0, e2 = -1
else if (i > e2) {
while (i <= e1) {
unmount(c1[i], parentComponent, parentSuspense, true);
i++;
}
}
// 5. unknown sequence
// [i ... e1 + 1]: a b [c d e] f g
// [i ... e2 + 1]: a b [e d c h] f g
// i = 2, e1 = 4, e2 = 5
else {
const s1 = i; // prev starting index
const s2 = i; // next starting index
// 5.1 build key:index map for newChildren
const keyToNewIndexMap = new Map();
for (i = s2; i <= e2; i++) {
const nextChild = (c2[i] = optimized
? cloneIfMounted(c2[i])
: normalizeVNode(c2[i]));
if (nextChild.key != null) {
keyToNewIndexMap.set(nextChild.key, i);
}
}
// 5.2 loop through old children left to be patched and try to patch
// matching nodes & remove nodes that are no longer present
let j;
let patched = 0;
const toBePatched = e2 - s2 + 1;
let moved = false;
// used to track whether any node has moved
let maxNewIndexSoFar = 0;
// works as Map<newIndex, oldIndex>
// Note that oldIndex is offset by +1
// and oldIndex = 0 is a special value indicating the new node has
// no corresponding old node.
// used for determining longest stable subsequence
const newIndexToOldIndexMap = new Array(toBePatched);
for (i = 0; i < toBePatched; i++)
newIndexToOldIndexMap[i] = 0;
for (i = s1; i <= e1; i++) {
const prevChild = c1[i];
if (patched >= toBePatched) {
// all new children have been patched so this can only be a removal
unmount(prevChild, parentComponent, parentSuspense, true);
continue;
}
let newIndex;
if (prevChild.key != null) {
newIndex = keyToNewIndexMap.get(prevChild.key);
}
else {
// key-less node, try to locate a key-less node of the same type
for (j = s2; j <= e2; j++) {
if (newIndexToOldIndexMap[j - s2] === 0 &&
isSameVNodeType(prevChild, c2[j])) {
newIndex = j;
break;
}
}
}
if (newIndex === undefined) {
unmount(prevChild, parentComponent, parentSuspense, true);
}
else {
newIndexToOldIndexMap[newIndex - s2] = i + 1;
if (newIndex >= maxNewIndexSoFar) {
maxNewIndexSoFar = newIndex;
}
else {
moved = true;
}
patch(prevChild, c2[newIndex], container, null, parentComponent, parentSuspense, isSVG, slotScopeIds, optimized);
patched++;
}
}
// 5.3 move and mount
// generate longest stable subsequence only when nodes have moved
const increasingNewIndexSequence = moved
? getSequence(newIndexToOldIndexMap)
: 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, slotScopeIds, optimized);
}
else if (moved) {
// move if:
// There is no stable subsequence (e.g. a reverse)
// OR current node is not among the stable sequence
if (j < 0 || i !== increasingNewIndexSequence[j]) {
move(nextChild, container, anchor, 2 /* 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, vnode, true);
}
if (shapeFlag & 256 /* COMPONENT_SHOULD_KEEP_ALIVE */) {
parentComponent.ctx.deactivate(vnode);
return;
}
const shouldInvokeDirs = shapeFlag & 1 /* ELEMENT */ && dirs;
const shouldInvokeVnodeHook = !isAsyncWrapper(vnode);
let vnodeHook;
if (shouldInvokeVnodeHook &&
(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 (shapeFlag & 64 /* TELEPORT */) {
vnode.type.remove(vnode, parentComponent, parentSuspense, optimized, internals, doRemove);
}
else if (dynamicChildren &&
// #1153: fast path should not be taken for non-stable (v-for) fragments
(type !== Fragment ||
(patchFlag > 0 && patchFlag & 64 /* 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 */ | 256 /* UNKEYED_FRAGMENT */)) ||
(!optimized && shapeFlag & 16 /* ARRAY_CHILDREN */)) {
unmountChildren(children, parentComponent, parentSuspense);
}
if (doRemove) {
remove(vnode);
}
}
if ((shouldInvokeVnodeHook &&
(vnodeHook = props && props.onVnodeUnmounted)) ||
shouldInvokeDirs) {
queuePostRenderEffect(() => {
vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, vnode);
shouldInvokeDirs &&
invokeDirectiveHook(vnode, null, parentComponent, 'unmounted');
}, parentSuspense);
}
};
const remove = vnode => {
const { type, el, anchor, transition } = vnode;
if (type === Fragment) {
{
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, scope, update, subTree, um } = instance;
// beforeUnmount hook
if (bum) {
shared.invokeArrayFns(bum);
}
// stop effects in component scope
scope.stop();
// update may be null if a component is unmounted before its async
// setup has resolved.
if (update) {
// so that scheduler will no longer invoke it
update.active = false;
unmount(subTree, instance, parentSuspense, doRemove);
}
// unmounted hook
if (um) {
queuePostRenderEffect(um, parentSuspense);
}
queuePostRenderEffect(() => {
instance.isUnmounted = true;
}, parentSuspense);
// A component with async dep inside a pending suspense is unmounted before
// its async dep resolves. This should remove the dep from the suspense, and
// cause the suspense to resolve immediately if that was the last dep.
if (parentSuspense &&
parentSuspense.pendingBranch &&
!parentSuspense.isUnmounted &&
instance.asyncDep &&
!instance.asyncResolved &&
instance.suspenseId === parentSuspense.pendingId) {
parentSuspense.deps--;
if (parentSuspense.deps === 0) {
parentSuspense.resolve();
}
}
};
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, isSVG) => {
if (vnode == null) {
if (container._vnode) {
unmount(container._vnode, null, null, true);
}
}
else {
patch(container._vnode || null, vnode, container, null, null, null, isSVG);
}
flushPostFlushCbs();
container._vnode = vnode;
};
const internals = {
p: patch,
um: unmount,
m: move,
r: remove,
mt: mountComponent,
mc: mountChildren,
pc: patchChildren,
pbc: patchBlockChildren,
n: getNextHostNode,
o: options
};
let hydrate;
let hydrateNode;
if (createHydrationFns) {
[hydrate, hydrateNode] = createHydrationFns(internals);
}
return {
render,
hydrate,
createApp: createAppAPI(render, hydrate)
};
}
function toggleRecurse({ effect, update }, allowed) {
effect.allowRecurse = update.allowRecurse = allowed;
}
/**
* #1156
* When a component is HMR-enabled, we need to make sure that all static nodes
* inside a block also inherit the DOM element from the previous tree so that
* HMR updates (which are full updates) can retrieve the element for patching.
*
* #2080
* Inside keyed `template` fragment static children, if a fragment is moved,
* the children will always be moved. Therefore, in order to ensure correct move
* position, el should be inherited from previous nodes.
*/
function traverseStaticChildren(n1, n2, shallow = false) {
const ch1 = n1.children;
const ch2 = n2.children;
if (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) >> 1;
if (arr[result[c]] < arrI) {
u = c + 1;
}
else {
v = c;
}
}
if (arrI < arr[result[u]]) {
if (u > 0) {
p[i] = result[u - 1];
}
result[u] = i;
}
}
}
u = result.length;
v = result[u - 1];
while (u-- > 0) {
result[u] = v;
v = p[v];
}
return result;
}
const isTeleport = (type) => type.__isTeleport;
const isTeleportDisabled = (props) => props && (props.disabled || props.disabled === '');
const isTargetSVG = (target) => typeof SVGElement !== 'undefined' && target instanceof SVGElement;
const resolveTarget = (props, select) => {
const targetSelector = props && props.to;
if (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, slotScopeIds, optimized, internals) {
const { mc: mountChildren, pc: patchChildren, pbc: patchBlockChildren, o: { insert, querySelector, createText, createComment } } = internals;
const disabled = isTeleportDisabled(n2.props);
let { shapeFlag, children, dynamicChildren } = n2;
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, slotScopeIds, optimized);
}
};
if (disabled) {
mount(container, mainAnchor);
}
else if (target) {
mount(target, targetAnchor);
}
}
else {
// update content
n2.el = n1.el;
const mainAnchor = (n2.anchor = n1.anchor);
const target = (n2.target = n1.target);
const targetAnchor = (n2.targetAnchor = n1.targetAnchor);
const wasDisabled = isTeleportDisabled(n1.props);
const currentContainer = wasDisabled ? container : target;
const currentAnchor = wasDisabled ? mainAnchor : targetAnchor;
isSVG = isSVG || isTargetSVG(target);
if (dynamicChildren) {
// fast path when the teleport happens to be a block root
patchBlockChildren(n1.dynamicChildren, dynamicChildren, currentContainer, parentComponent, parentSuspense, isSVG, slotScopeIds);
// even in block tree mode we need to make sure all root-level nodes
// in the teleport inherit previous DOM references so that they can
// be moved in future patches.
traverseStaticChildren(n1, n2, true);
}
else if (!optimized) {
patchChildren(n1, n2, currentContainer, currentAnchor, parentComponent, parentSuspense, isSVG, slotScopeIds, false);
}
if (disabled) {
if (!wasDisabled) {
// enabled -> disabled
// move into main container
moveTeleport(n2, container, mainAnchor, internals, 1 /* 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, parentComponent, parentSuspense, optimized, { um: unmount, o: { remove: hostRemove } }, doRemove) {
const { shapeFlag, children, anchor, targetAnchor, target, props } = vnode;
if (target) {
hostRemove(targetAnchor);
}
// an unmounted teleport should always remove its children if not disabled
if (doRemove || !isTeleportDisabled(props)) {
hostRemove(anchor);
if (shapeFlag & 16 /* ARRAY_CHILDREN */) {
for (let i = 0; i < children.length; i++) {
const child = children[i];
unmount(child, parentComponent, parentSuspense, true, !!child.dynamicChildren);
}
}
}
},
move: moveTeleport,
hydrate: hydrateTeleport
};
function moveTeleport(vnode, container, parentAnchor, { o: { insert }, m: move }, moveType = 2 /* 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, slotScopeIds, optimized, { o: { nextSibling, parentNode, querySelector } }, hydrateChildren) {
const target = (vnode.target = resolveTarget(vnode.props, querySelector));
if (target) {
// if multiple teleports rendered to the same target element, we need to
// pick up from where the last teleport finished instead of the first node
const targetNode = target._lpa || target.firstChild;
if (vnode.shapeFlag & 16 /* ARRAY_CHILDREN */) {
if (isTeleportDisabled(vnode.props)) {
vnode.anchor = hydrateChildren(nextSibling(node), vnode, parentNode(node), parentComponent, parentSuspense, slotScopeIds, optimized);
vnode.targetAnchor = targetNode;
}
else {
vnode.anchor = nextSibling(node);
vnode.targetAnchor = hydrateChildren(targetNode, vnode, target, parentComponent, parentSuspense, slotScopeIds, 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, maybeSelfReference) {
return resolveAsset(COMPONENTS, name, true, maybeSelfReference) || 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, maybeSelfReference = false) {
const instance = currentRenderingInstance || currentInstance;
if (instance) {
const Component = instance.type;
// explicit self name has highest priority
if (type === COMPONENTS) {
const selfName = getComponentName(Component);
if (selfName &&
(selfName === name ||
selfName === shared.camelize(name) ||
selfName === shared.capitalize(shared.camelize(name)))) {
return Component;
}
}
const res =
// local registration
// check instance[type] first which is resolved for options API
resolve(instance[type] || Component[type], name) ||
// global registration
resolve(instance.appContext[type], name);
if (!res && maybeSelfReference) {
// fallback to implicit self-reference
return Component;
}
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 isBlockTreeEnabled = 1;
/**
* Block tracking sometimes needs to be disabled, for example during the
* creation of a tree that needs to be cached by v-once. The compiler generates
* code like this:
*
* ``` js
* _cache[1] || (
* setBlockTracking(-1),
* _cache[1] = createVNode(...),
* setBlockTracking(1),
* _cache[1]
* )
* ```
*
* @private
*/
function setBlockTracking(value) {
isBlockTreeEnabled += value;
}
function setupBlock(vnode) {
// save current block children on the block vnode
vnode.dynamicChildren =
isBlockTreeEnabled > 0 ? currentBlock || shared.EMPTY_ARR : null;
// close block
closeBlock();
// a block is always going to be patched, so track it as a child of its
// parent block
if (isBlockTreeEnabled > 0 && currentBlock) {
currentBlock.push(vnode);
}
return vnode;
}
/**
* @private
*/
function createElementBlock(type, props, children, patchFlag, dynamicProps, shapeFlag) {
return setupBlock(createBaseVNode(type, props, children, patchFlag, dynamicProps, shapeFlag, true /* isBlock */));
}
/**
* Create a block root vnode. Takes the same exact arguments as `createVNode`.
* A block root keeps track of dynamic nodes within the block in the
* `dynamicChildren` array.
*
* @private
*/
function createBlock(type, props, children, patchFlag, dynamicProps) {
return setupBlock(createVNode(type, props, children, patchFlag, dynamicProps, true /* isBlock: prevent a block from tracking itself */));
}
function isVNode(value) {
return value ? value.__v_isVNode === true : false;
}
function isSameVNodeType(n1, n2) {
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, ref_key, ref_for }) => {
return (ref != null
? shared.isString(ref) || reactivity.isRef(ref) || shared.isFunction(ref)
? { i: currentRenderingInstance, r: ref, k: ref_key, f: !!ref_for }
: ref
: null);
};
function createBaseVNode(type, props = null, children = null, patchFlag = 0, dynamicProps = null, shapeFlag = type === Fragment ? 0 : 1 /* ELEMENT */, isBlockNode = false, needFullChildrenNormalization = false) {
const vnode = {
__v_isVNode: true,
__v_skip: true,
type,
props,
key: props && normalizeKey(props),
ref: props && normalizeRef(props),
scopeId: currentScopeId,
slotScopeIds: null,
children,
component: null,
suspense: null,
ssContent: null,
ssFallback: null,
dirs: null,
transition: null,
el: null,
anchor: null,
target: null,
targetAnchor: null,
staticCount: 0,
shapeFlag,
patchFlag,
dynamicProps,
dynamicChildren: null,
appContext: null
};
if (needFullChildrenNormalization) {
normalizeChildren(vnode, children);
// normalize suspense children
if (shapeFlag & 128 /* SUSPENSE */) {
type.normalize(vnode);
}
}
else if (children) {
// compiled element vnode - if children is passed, only possible types are
// string or Array.
vnode.shapeFlag |= shared.isString(children)
? 8 /* TEXT_CHILDREN */
: 16 /* ARRAY_CHILDREN */;
}
// track vnode for block tree
if (isBlockTreeEnabled > 0 &&
// avoid a block node from tracking itself
!isBlockNode &&
// has current parent block
currentBlock &&
// presence of a patch flag indicates this node needs patching on updates.
// component nodes also should always be patched, because even if the
// component doesn't need to update, it needs to persist the instance on to
// the next vnode so that it can be properly unmounted later.
(vnode.patchFlag > 0 || shapeFlag & 6 /* COMPONENT */) &&
// the EVENTS flag is only for hydration and if it is the only flag, the
// vnode should not be considered dynamic due to handler caching.
vnode.patchFlag !== 32 /* HYDRATE_EVENTS */) {
currentBlock.push(vnode);
}
return vnode;
}
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.
props = guardReactiveProps(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;
return createBaseVNode(type, props, children, patchFlag, dynamicProps, shapeFlag, isBlockNode, true);
}
function guardReactiveProps(props) {
if (!props)
return null;
return reactivity.isProxy(props) || InternalObjectKey in props
? shared.extend({}, props)
: props;
}
function cloneVNode(vnode, extraProps, mergeRef = false) {
// This is intentionally NOT using spread or extend to avoid the runtime
// key enumeration cost.
const { props, ref, patchFlag, children } = vnode;
const mergedProps = extraProps ? mergeProps(props || {}, extraProps) : props;
const cloned = {
__v_isVNode: true,
__v_skip: true,
type: vnode.type,
props: mergedProps,
key: mergedProps && normalizeKey(mergedProps),
ref: extraProps && extraProps.ref
? // #2078 in the case of <component :is="vnode" ref="extra"/>
// if the vnode itself already has a ref, cloneVNode will need to merge
// the refs so the single vnode can be set on multiple refs
mergeRef && ref
? shared.isArray(ref)
? ref.concat(normalizeRef(extraProps))
: [ref, normalizeRef(extraProps)]
: normalizeRef(extraProps)
: ref,
scopeId: vnode.scopeId,
slotScopeIds: vnode.slotScopeIds,
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: preserve 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
};
return cloned;
}
/**
* @private
*/
function createTextVNode(text = ' ', flag = 0) {
return createVNode(Text, null, text, flag);
}
/**
* @private
*/
function createStaticVNode(content, numberOfNodes) {
// A static vnode can contain multiple stringified elements, and the number
// of elements is necessary for hydration.
const vnode = createVNode(Static, null, content);
vnode.staticCount = numberOfNodes;
return vnode;
}
/**
* @private
*/
function createCommentVNode(text = '',
// when used as the v-else branch, the comment node must be created as a
// block to ensure correct updates.
asBlock = false) {
return asBlock
? (openBlock(), createBlock(Comment, null, text))
: createVNode(Comment, null, text);
}
function normalizeVNode(child) {
if (child == null || typeof child === 'boolean') {
// empty placeholder
return createVNode(Comment);
}
else if (shared.isArray(child)) {
// fragment
return createVNode(Fragment, null,
// #3666, avoid reference pollution when reusing vnode
child.slice());
}
else if (typeof child === 'object') {
// already vnode, this should be the most common since compiled templates
// always produce all-vnode children arrays
return cloneIfMounted(child);
}
else {
// strings and numbers
return createVNode(Text, null, String(child));
}
}
// optimized normalization for template-compiled render fns
function cloneIfMounted(child) {
return child.el === null || child.memo ? 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 */ | 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 && (slot._d = false);
normalizeChildren(vnode, slot());
slot._c && (slot._d = true);
}
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.slots._ === 1 /* STABLE */) {
children._ = 1 /* STABLE */;
}
else {
children._ = 2 /* DYNAMIC */;
vnode.patchFlag |= 1024 /* DYNAMIC_SLOTS */;
}
}
}
}
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 = {};
for (let i = 0; i < args.length; i++) {
const toMerge = args[i];
for (const key in toMerge) {
if (key === 'class') {
if (ret.class !== toMerge.class) {
ret.class = 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 (incoming &&
existing !== incoming &&
!(shared.isArray(existing) && existing.includes(incoming))) {
ret[key] = existing
? [].concat(existing, incoming)
: incoming;
}
}
else if (key !== '') {
ret[key] = toMerge[key];
}
}
}
return ret;
}
function invokeVNodeHook(hook, instance, vnode, prevVNode = null) {
callWithAsyncErrorHandling(hook, instance, 7 /* VNODE_HOOK */, [
vnode,
prevVNode
]);
}
/**
* Actual implementation
*/
function renderList(source, renderItem, cache, index) {
let ret;
const cached = (cache && cache[index]);
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, undefined, cached && cached[i]);
}
}
else if (typeof source === 'number') {
ret = new Array(source);
for (let i = 0; i < source; i++) {
ret[i] = renderItem(i + 1, i, undefined, cached && cached[i]);
}
}
else if (shared.isObject(source)) {
if (source[Symbol.iterator]) {
ret = Array.from(source, (item, i) => renderItem(item, i, undefined, cached && cached[i]));
}
else {
const keys = Object.keys(source);
ret = new Array(keys.length);
for (let i = 0, l = keys.length; i < l; i++) {
const key = keys[i];
ret[i] = renderItem(source[key], key, i, cached && cached[i]);
}
}
}
else {
ret = [];
}
if (cache) {
cache[index] = ret;
}
return ret;
}
/**
* Compiler runtime helper for creating dynamic slots object
* @private
*/
function createSlots(slots, dynamicSlots) {
for (let i = 0; i < dynamicSlots.length; i++) {
const slot = dynamicSlots[i];
// array of dynamic slot generated by <template v-for="..." #[...]>
if (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;
}
/**
* Compiler runtime helper for rendering `<slot/>`
* @private
*/
function renderSlot(slots, name, props = {},
// this is not a user-facing function, so the fallback is always generated by
// the compiler and guaranteed to be a function returning an array
fallback, noSlotted) {
if (currentRenderingInstance.isCE ||
(currentRenderingInstance.parent &&
isAsyncWrapper(currentRenderingInstance.parent) &&
currentRenderingInstance.parent.isCE)) {
return createVNode('slot', name === 'default' ? null : { name }, fallback && 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.
if (slot && slot._c) {
slot._d = false;
}
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 */);
if (!noSlotted && rendered.scopeId) {
rendered.slotScopeIds = [rendered.scopeId + '-s'];
}
if (slot && slot._c) {
slot._d = true;
}
return rendered;
}
function ensureValidVNode(vnodes) {
return vnodes.some(child => {
if (!isVNode(child))
return true;
if (child.type === Comment)
return false;
if (child.type === Fragment &&
!ensureValidVNode(child.children))
return false;
return true;
})
? vnodes
: null;
}
/**
* For prefixing keys in v-on="obj" with "on"
* @private
*/
function toHandlers(obj) {
const ret = {};
for (const key in obj) {
ret[shared.toHandlerKey(key)] = obj[key];
}
return ret;
}
/**
* #2437 In Vue 3, functional components do not have a public instance proxy but
* they exist in the internal parent chain. For code that relies on traversing
* public $parent chains, skip functional ones and go to the parent instead.
*/
const getPublicInstance = (i) => {
if (!i)
return null;
if (isStatefulComponent(i))
return getExposeProxy(i) || i.proxy;
return getPublicInstance(i.parent);
};
const publicPropertiesMap =
// Move PURE marker to new line to workaround compiler discarding it
// due to type annotation
/*#__PURE__*/ 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),
$watch: i => (instanceWatch.bind(i) )
});
const PublicInstanceProxyHandlers = {
get({ _: instance }, key) {
const { ctx, setupState, data, props, accessCache, type, appContext } = instance;
// data / props / ctx
// This getter gets called for every property access on the render context
// during render and is a major hotspot. The most expensive part of this
// is the multiple hasOwn() calls. It's much faster to do a simple property
// access on a plain object, so we use an accessCache object (with null
// prototype) to memoize what access type a key corresponds to.
let normalizedProps;
if (key[0] !== '$') {
const n = accessCache[key];
if (n !== undefined) {
switch (n) {
case 1 /* SETUP */:
return setupState[key];
case 2 /* DATA */:
return data[key];
case 4 /* CONTEXT */:
return ctx[key];
case 3 /* PROPS */:
return props[key];
// default: just fallthrough
}
}
else if (setupState !== shared.EMPTY_OBJ && shared.hasOwn(setupState, key)) {
accessCache[key] = 1 /* SETUP */;
return setupState[key];
}
else if (data !== shared.EMPTY_OBJ && shared.hasOwn(data, key)) {
accessCache[key] = 2 /* 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] = 3 /* PROPS */;
return props[key];
}
else if (ctx !== shared.EMPTY_OBJ && shared.hasOwn(ctx, key)) {
accessCache[key] = 4 /* CONTEXT */;
return ctx[key];
}
else if (shouldCacheAccess) {
accessCache[key] = 0 /* 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 `$`
accessCache[key] = 4 /* CONTEXT */;
return ctx[key];
}
else if (
// global properties
((globalProperties = appContext.config.globalProperties),
shared.hasOwn(globalProperties, key))) {
{
return globalProperties[key];
}
}
else ;
},
set({ _: instance }, key, value) {
const { data, setupState, ctx } = instance;
if (setupState !== shared.EMPTY_OBJ && shared.hasOwn(setupState, key)) {
setupState[key] = value;
return true;
}
else if (data !== shared.EMPTY_OBJ && shared.hasOwn(data, key)) {
data[key] = value;
return true;
}
else if (shared.hasOwn(instance.props, key)) {
return false;
}
if (key[0] === '$' && 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] ||
(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));
},
defineProperty(target, key, descriptor) {
if (descriptor.get != null) {
// invalidate key cache of a getter based property #5417
target._.accessCache[key] = 0;
}
else if (shared.hasOwn(descriptor, 'value')) {
this.set(target, key, descriptor.value, null);
}
return Reflect.defineProperty(target, key, descriptor);
}
};
const RuntimeCompiledPublicInstanceProxyHandlers = /*#__PURE__*/ 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,
effect: null,
update: null,
scope: new reactivity.EffectScope(true /* detached */),
render: null,
proxy: null,
exposed: null,
exposeProxy: null,
withProxy: null,
provides: parent ? parent.provides : Object.create(appContext.provides),
accessCache: null,
renderCache: [],
// local resovled assets
components: null,
directives: null,
// resolved props and emits options
propsOptions: normalizePropsOptions(type, appContext),
emitsOptions: normalizeEmitsOptions(type, appContext),
// emit
emit: null,
emitted: null,
// props default value
propsDefaults: shared.EMPTY_OBJ,
// inheritAttrs
inheritAttrs: type.inheritAttrs,
// 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,
sp: null
};
{
instance.ctx = { _: instance };
}
instance.root = parent ? parent.root : instance;
instance.emit = emit.bind(null, instance);
// apply custom element special handling
if (vnode.ce) {
vnode.ce(instance);
}
return instance;
}
let currentInstance = null;
const getCurrentInstance = () => currentInstance || currentRenderingInstance;
const setCurrentInstance = (instance) => {
currentInstance = instance;
instance.scope.on();
};
const unsetCurrentInstance = () => {
currentInstance && currentInstance.scope.off();
currentInstance = null;
};
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 = reactivity.markRaw(new Proxy(instance.ctx, PublicInstanceProxyHandlers));
// 2. call setup()
const { setup } = Component;
if (setup) {
const setupContext = (instance.setupContext =
setup.length > 1 ? createSetupContext(instance) : null);
setCurrentInstance(instance);
reactivity.pauseTracking();
const setupResult = callWithErrorHandling(setup, instance, 0 /* SETUP_FUNCTION */, [instance.props, setupContext]);
reactivity.resetTracking();
unsetCurrentInstance();
if (shared.isPromise(setupResult)) {
setupResult.then(unsetCurrentInstance, unsetCurrentInstance);
if (isSSR) {
// return the promise so server-renderer can wait on it
return setupResult
.then((resolvedResult) => {
handleSetupResult(instance, resolvedResult, isSSR);
})
.catch(e => {
handleError(e, instance, 0 /* SETUP_FUNCTION */);
});
}
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;
let installWithProxy;
/**
* For runtime-dom to register the compiler.
* Note the exported method uses any to avoid d.ts relying on the compiler types.
*/
function registerRuntimeCompiler(_compile) {
compile = _compile;
installWithProxy = i => {
if (i.render._rc) {
i.withProxy = new Proxy(i.ctx, RuntimeCompiledPublicInstanceProxyHandlers);
}
};
}
// dev only
const isRuntimeOnly = () => !compile;
function finishComponentSetup(instance, isSSR, skipOptions) {
const Component = instance.type;
// template / render function normalization
// could be already set when returned from setup()
if (!instance.render) {
// only do on-the-fly compile if not in SSR - SSR on-the-fly compilation
// is done by server-renderer
if (!isSSR && compile && !Component.render) {
const template = Component.template;
if (template) {
const { isCustomElement, compilerOptions } = instance.appContext.config;
const { delimiters, compilerOptions: componentCompilerOptions } = Component;
const finalCompilerOptions = shared.extend(shared.extend({
isCustomElement,
delimiters
}, compilerOptions), componentCompilerOptions);
Component.render = compile(template, finalCompilerOptions);
}
}
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 (installWithProxy) {
installWithProxy(instance);
}
}
// support for 2.x options
{
setCurrentInstance(instance);
reactivity.pauseTracking();
applyOptions(instance);
reactivity.resetTracking();
unsetCurrentInstance();
}
}
function createAttrsProxy(instance) {
return new Proxy(instance.attrs, {
get(target, key) {
reactivity.track(instance, "get" /* GET */, '$attrs');
return target[key];
}
});
}
function createSetupContext(instance) {
const expose = exposed => {
instance.exposed = exposed || {};
};
let attrs;
{
return {
get attrs() {
return attrs || (attrs = createAttrsProxy(instance));
},
slots: instance.slots,
emit: instance.emit,
expose
};
}
}
function getExposeProxy(instance) {
if (instance.exposed) {
return (instance.exposeProxy ||
(instance.exposeProxy = new Proxy(reactivity.proxyRefs(reactivity.markRaw(instance.exposed)), {
get(target, key) {
if (key in target) {
return target[key];
}
else if (key in publicPropertiesMap) {
return publicPropertiesMap[key](instance);
}
}
})));
}
}
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;
}
const computed = ((getterOrOptions, debugOptions) => {
// @ts-ignore
return reactivity.computed(getterOrOptions, debugOptions, isInSSRComponentSetup);
});
// implementation
function defineProps() {
return null;
}
// implementation
function defineEmits() {
return null;
}
/**
* Vue `<script setup>` compiler macro for declaring a component's exposed
* instance properties when it is accessed by a parent component via template
* refs.
*
* `<script setup>` components are closed by default - i.e. variables inside
* the `<script setup>` scope is not exposed to parent unless explicitly exposed
* via `defineExpose`.
*
* This is only usable inside `<script setup>`, is compiled away in the
* output and should **not** be actually called at runtime.
*/
function defineExpose(exposed) {
}
/**
* Vue `<script setup>` compiler macro for providing props default values when
* using type-based `defineProps` declaration.
*
* Example usage:
* ```ts
* withDefaults(defineProps<{
* size?: number
* labels?: string[]
* }>(), {
* size: 3,
* labels: () => ['default label']
* })
* ```
*
* This is only usable inside `<script setup>`, is compiled away in the output
* and should **not** be actually called at runtime.
*/
function withDefaults(props, defaults) {
return null;
}
function useSlots() {
return getContext().slots;
}
function useAttrs() {
return getContext().attrs;
}
function getContext() {
const i = getCurrentInstance();
return i.setupContext || (i.setupContext = createSetupContext(i));
}
/**
* Runtime helper for merging default declarations. Imported by compiled code
* only.
* @internal
*/
function mergeDefaults(raw, defaults) {
const props = shared.isArray(raw)
? raw.reduce((normalized, p) => ((normalized[p] = {}), normalized), {})
: raw;
for (const key in defaults) {
const opt = props[key];
if (opt) {
if (shared.isArray(opt) || shared.isFunction(opt)) {
props[key] = { type: opt, default: defaults[key] };
}
else {
opt.default = defaults[key];
}
}
else if (opt === null) {
props[key] = { default: defaults[key] };
}
else ;
}
return props;
}
/**
* Used to create a proxy for the rest element when destructuring props with
* defineProps().
* @internal
*/
function createPropsRestProxy(props, excludedKeys) {
const ret = {};
for (const key in props) {
if (!excludedKeys.includes(key)) {
Object.defineProperty(ret, key, {
enumerable: true,
get: () => props[key]
});
}
}
return ret;
}
/**
* `<script setup>` helper for persisting the current instance context over
* async/await flows.
*
* `@vue/compiler-sfc` converts the following:
*
* ```ts
* const x = await foo()
* ```
*
* into:
*
* ```ts
* let __temp, __restore
* const x = (([__temp, __restore] = withAsyncContext(() => foo())),__temp=await __temp,__restore(),__temp)
* ```
* @internal
*/
function withAsyncContext(getAwaitable) {
const ctx = getCurrentInstance();
let awaitable = getAwaitable();
unsetCurrentInstance();
if (shared.isPromise(awaitable)) {
awaitable = awaitable.catch(e => {
setCurrentInstance(ctx);
throw e;
});
}
return [awaitable, () => setCurrentInstance(ctx)];
}
// Actual implementation
function h(type, propsOrChildren, children) {
const l = arguments.length;
if (l === 2) {
if (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;
}
}
function withMemo(memo, render, cache, index) {
const cached = cache[index];
if (cached && isMemoSame(cached, memo)) {
return cached;
}
const ret = render();
// shallow clone
ret.memo = memo.slice();
return (cache[index] = ret);
}
function isMemoSame(cached, memo) {
const prev = cached.memo;
if (prev.length != memo.length) {
return false;
}
for (let i = 0; i < prev.length; i++) {
if (prev[i] !== memo[i]) {
return false;
}
}
// make sure to let parent block track it when returning cached
if (isBlockTreeEnabled > 0 && currentBlock) {
currentBlock.push(cached);
}
return true;
}
// Core API ------------------------------------------------------------------
const version = "3.2.33";
const _ssrUtils = {
createComponentInstance,
setupComponent,
renderComponentRoot,
setCurrentRenderingInstance,
isVNode,
normalizeVNode
};
/**
* SSR utils for \@vue/server-renderer. Only exposed in cjs builds.
* @internal
*/
const ssrUtils = (_ssrUtils );
/**
* @internal only exposed in compat builds
*/
const resolveFilter = null;
/**
* @internal only exposed in compat builds.
*/
const compatUtils = (null);
exports.EffectScope = reactivity.EffectScope;
exports.ReactiveEffect = reactivity.ReactiveEffect;
exports.customRef = reactivity.customRef;
exports.effect = reactivity.effect;
exports.effectScope = reactivity.effectScope;
exports.getCurrentScope = reactivity.getCurrentScope;
exports.isProxy = reactivity.isProxy;
exports.isReactive = reactivity.isReactive;
exports.isReadonly = reactivity.isReadonly;
exports.isRef = reactivity.isRef;
exports.isShallow = reactivity.isShallow;
exports.markRaw = reactivity.markRaw;
exports.onScopeDispose = reactivity.onScopeDispose;
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.stop = reactivity.stop;
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.normalizeClass = shared.normalizeClass;
exports.normalizeProps = shared.normalizeProps;
exports.normalizeStyle = shared.normalizeStyle;
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.compatUtils = compatUtils;
exports.computed = computed;
exports.createBlock = createBlock;
exports.createCommentVNode = createCommentVNode;
exports.createElementBlock = createElementBlock;
exports.createElementVNode = createBaseVNode;
exports.createHydrationRenderer = createHydrationRenderer;
exports.createPropsRestProxy = createPropsRestProxy;
exports.createRenderer = createRenderer;
exports.createSlots = createSlots;
exports.createStaticVNode = createStaticVNode;
exports.createTextVNode = createTextVNode;
exports.createVNode = createVNode;
exports.defineAsyncComponent = defineAsyncComponent;
exports.defineComponent = defineComponent;
exports.defineEmits = defineEmits;
exports.defineExpose = defineExpose;
exports.defineProps = defineProps;
exports.getCurrentInstance = getCurrentInstance;
exports.getTransitionRawChildren = getTransitionRawChildren;
exports.guardReactiveProps = guardReactiveProps;
exports.h = h;
exports.handleError = handleError;
exports.initCustomFormatter = initCustomFormatter;
exports.inject = inject;
exports.isMemoSame = isMemoSame;
exports.isRuntimeOnly = isRuntimeOnly;
exports.isVNode = isVNode;
exports.mergeDefaults = mergeDefaults;
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.onServerPrefetch = onServerPrefetch;
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.resolveFilter = resolveFilter;
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.useAttrs = useAttrs;
exports.useSSRContext = useSSRContext;
exports.useSlots = useSlots;
exports.useTransitionState = useTransitionState;
exports.version = version;
exports.warn = warn;
exports.watch = watch;
exports.watchEffect = watchEffect;
exports.watchPostEffect = watchPostEffect;
exports.watchSyncEffect = watchSyncEffect;
exports.withAsyncContext = withAsyncContext;
exports.withCtx = withCtx;
exports.withDefaults = withDefaults;
exports.withDirectives = withDirectives;
exports.withMemo = withMemo;
exports.withScopeId = withScopeId;