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277x 277x 277x 277x 277x 277x 277x 117x 117x 160x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 277x 4x 4x 4x 4x 4x 2x 101x 101x 2x 13x 13x 13x 13x 13x 13x 13x 2x 68x 68x 68x 68x 26x 42x 68x 2x 5679x 404x 5678x 352x 352x 352x 352x 352x 5275x 4306x 4913x 617x 617x 5679x 2x 4578x 134x 4458x 119x 4578x 2x 7071x 7071x 7071x 3443x 7050x 1135x 3608x 368x 19x 19x 17x 17x 17x 17x 19x 362x 349x 349x 349x 177x 342x 12x 12x 12x 1x 12x 11x 11x 11x 12x 349x 2493x 104x 104x 2120x 2021x 2021x 9x 9x 2021x 2012x 2012x 2021x 7052x 7052x 7052x 2x 203x 203x 402x 402x 389x 68x 68x 68x 388x 36x 321x 50x 50x 50x 50x 49x 49x 50x 48x 5x 43x 48x 285x 235x 235x 389x 395x 203x 203x 2x 44x 44x 44x 44x 44x 44x 44x 44x 44x 44x | import {
EMPTY_ARR,
PatchFlags,
ShapeFlags,
SlotFlags,
extend,
isArray,
isFunction,
isObject,
isOn,
isString,
normalizeClass,
normalizeStyle,
} from '@vue/shared'
import {
type ClassComponent,
type Component,
type ComponentInternalInstance,
type ConcreteComponent,
type Data,
isClassComponent,
} from './component'
import type { RawSlots } from './componentSlots'
import {
type ReactiveFlags,
type Ref,
isProxy,
isRef,
toRaw,
} from '@vue/reactivity'
import type { AppContext } from './apiCreateApp'
import {
type Suspense,
type SuspenseBoundary,
type SuspenseImpl,
isSuspense,
} from './components/Suspense'
import type { DirectiveBinding } from './directives'
import {
type TransitionHooks,
setTransitionHooks,
} from './components/BaseTransition'
import { warn } from './warning'
import {
type Teleport,
type TeleportImpl,
isTeleport,
} from './components/Teleport'
import {
currentRenderingInstance,
currentScopeId,
} from './componentRenderContext'
import type { RendererElement, RendererNode } from './renderer'
import { NULL_DYNAMIC_COMPONENT } from './helpers/resolveAssets'
import { hmrDirtyComponents } from './hmr'
import { convertLegacyComponent } from './compat/component'
import { convertLegacyVModelProps } from './compat/componentVModel'
import { defineLegacyVNodeProperties } from './compat/renderFn'
import { ErrorCodes, callWithAsyncErrorHandling } from './errorHandling'
import type { ComponentPublicInstance } from './componentPublicInstance'
import { isInternalObject } from './internalObject'
export const Fragment = Symbol.for('v-fgt') as any as {
__isFragment: true
new (): {
$props: VNodeProps
}
}
export const Text: unique symbol = Symbol.for('v-txt')
export const Comment: unique symbol = Symbol.for('v-cmt')
export const Static: unique symbol = Symbol.for('v-stc')
export type VNodeTypes =
| string
| VNode
| Component
| typeof Text
| typeof Static
| typeof Comment
| typeof Fragment
| typeof Teleport
| typeof TeleportImpl
| typeof Suspense
| typeof SuspenseImpl
export type VNodeRef =
| string
| Ref
| ((
ref: Element | ComponentPublicInstance | null,
refs: Record<string, any>,
) => void)
export type VNodeNormalizedRefAtom = {
/**
* component instance
*/
i: ComponentInternalInstance
/**
* Actual ref
*/
r: VNodeRef
/**
* setup ref key
*/
k?: string
/**
* refInFor marker
*/
f?: boolean
}
export type VNodeNormalizedRef =
| VNodeNormalizedRefAtom
| VNodeNormalizedRefAtom[]
type VNodeMountHook = (vnode: VNode) => void
type VNodeUpdateHook = (vnode: VNode, oldVNode: VNode) => void
export type VNodeHook =
| VNodeMountHook
| VNodeUpdateHook
| VNodeMountHook[]
| VNodeUpdateHook[]
// https://github.com/microsoft/TypeScript/issues/33099
export type VNodeProps = {
key?: PropertyKey
ref?: VNodeRef
ref_for?: boolean
ref_key?: string
// vnode hooks
onVnodeBeforeMount?: VNodeMountHook | VNodeMountHook[]
onVnodeMounted?: VNodeMountHook | VNodeMountHook[]
onVnodeBeforeUpdate?: VNodeUpdateHook | VNodeUpdateHook[]
onVnodeUpdated?: VNodeUpdateHook | VNodeUpdateHook[]
onVnodeBeforeUnmount?: VNodeMountHook | VNodeMountHook[]
onVnodeUnmounted?: VNodeMountHook | VNodeMountHook[]
}
type VNodeChildAtom =
| VNode
| string
| number
| boolean
| null
| undefined
| void
export type VNodeArrayChildren = Array<VNodeArrayChildren | VNodeChildAtom>
export type VNodeChild = VNodeChildAtom | VNodeArrayChildren
export type VNodeNormalizedChildren =
| string
| VNodeArrayChildren
| RawSlots
| null
export interface VNode<
HostNode = RendererNode,
HostElement = RendererElement,
ExtraProps = { [key: string]: any },
> {
/**
* @internal
*/
__v_isVNode: true
/**
* @internal
*/
[ReactiveFlags.SKIP]: true
type: VNodeTypes
props: (VNodeProps & ExtraProps) | null
key: PropertyKey | null
ref: VNodeNormalizedRef | null
/**
* SFC only. This is assigned on vnode creation using currentScopeId
* which is set alongside currentRenderingInstance.
*/
scopeId: string | null
/**
* SFC only. This is assigned to:
* - Slot fragment vnodes with :slotted SFC styles.
* - Component vnodes (during patch/hydration) so that its root node can
* inherit the component's slotScopeIds
* @internal
*/
slotScopeIds: string[] | null
children: VNodeNormalizedChildren
component: ComponentInternalInstance | null
dirs: DirectiveBinding[] | null
transition: TransitionHooks<HostElement> | null
// DOM
el: HostNode | null
anchor: HostNode | null // fragment anchor
target: HostElement | null // teleport target
targetStart: HostNode | null // teleport target start anchor
targetAnchor: HostNode | null // teleport target anchor
/**
* number of elements contained in a static vnode
* @internal
*/
staticCount: number
// suspense
suspense: SuspenseBoundary | null
/**
* @internal
*/
ssContent: VNode | null
/**
* @internal
*/
ssFallback: VNode | null
// optimization only
shapeFlag: number
patchFlag: number
/**
* @internal
*/
dynamicProps: string[] | null
/**
* @internal
*/
dynamicChildren: (VNode[] & { hasOnce?: boolean }) | null
// application root node only
appContext: AppContext | null
/**
* @internal lexical scope owner instance
*/
ctx: ComponentInternalInstance | null
/**
* @internal attached by v-memo
*/
memo?: any[]
/**
* @internal index for cleaning v-memo cache
*/
cacheIndex?: number
/**
* @internal __COMPAT__ only
*/
isCompatRoot?: true
/**
* @internal custom element interception hook
*/
ce?: (instance: ComponentInternalInstance) => void
}
// 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).
export const blockStack: VNode['dynamicChildren'][] = []
export let currentBlock: VNode['dynamicChildren'] = 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
*/
export function openBlock(disableTracking = false): void {
blockStack.push((currentBlock = disableTracking ? null : []))
}
export function closeBlock(): void {
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)
export 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
*/
export function setBlockTracking(value: number): void {
isBlockTreeEnabled += value
if (value < 0 && currentBlock) {
// mark current block so it doesn't take fast path and skip possible
// nested components duriung unmount
currentBlock.hasOnce = true
}
}
function setupBlock(vnode: VNode) {
// save current block children on the block vnode
vnode.dynamicChildren =
isBlockTreeEnabled > 0 ? currentBlock || (EMPTY_ARR as any) : 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
*/
export function createElementBlock(
type: string | typeof Fragment,
props?: Record<string, any> | null,
children?: any,
patchFlag?: number,
dynamicProps?: string[],
shapeFlag?: number,
): VNode {
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
*/
export function createBlock(
type: VNodeTypes | ClassComponent,
props?: Record<string, any> | null,
children?: any,
patchFlag?: number,
dynamicProps?: string[],
): VNode {
return setupBlock(
createVNode(
type,
props,
children,
patchFlag,
dynamicProps,
true /* isBlock: prevent a block from tracking itself */,
),
)
}
export function isVNode(value: any): value is VNode {
return value ? value.__v_isVNode === true : false
}
export function isSameVNodeType(n1: VNode, n2: VNode): boolean {
if (__DEV__ && n2.shapeFlag & ShapeFlags.COMPONENT && n1.component) {
const dirtyInstances = hmrDirtyComponents.get(n2.type as ConcreteComponent)
if (dirtyInstances && dirtyInstances.has(n1.component)) {
// #7042, ensure the vnode being unmounted during HMR
// bitwise operations to remove keep alive flags
n1.shapeFlag &= ~ShapeFlags.COMPONENT_SHOULD_KEEP_ALIVE
n2.shapeFlag &= ~ShapeFlags.COMPONENT_KEPT_ALIVE
// HMR only: if the component has been hot-updated, force a reload.
return false
}
}
return n1.type === n2.type && n1.key === n2.key
}
let vnodeArgsTransformer:
| ((
args: Parameters<typeof _createVNode>,
instance: ComponentInternalInstance | null,
) => Parameters<typeof _createVNode>)
| undefined
/**
* 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
*/
export function transformVNodeArgs(
transformer?: typeof vnodeArgsTransformer,
): void {
vnodeArgsTransformer = transformer
}
const createVNodeWithArgsTransform = (
...args: Parameters<typeof _createVNode>
): VNode => {
return _createVNode(
...(vnodeArgsTransformer
? vnodeArgsTransformer(args, currentRenderingInstance)
: args),
)
}
const normalizeKey = ({ key }: VNodeProps): VNode['key'] =>
key != null ? key : null
const normalizeRef = ({
ref,
ref_key,
ref_for,
}: VNodeProps): VNodeNormalizedRefAtom | null => {
if (typeof ref === 'number') {
ref = '' + ref
}
return (
ref != null
? isString(ref) || isRef(ref) || isFunction(ref)
? { i: currentRenderingInstance, r: ref, k: ref_key, f: !!ref_for }
: ref
: null
) as any
}
function createBaseVNode(
type: VNodeTypes | ClassComponent | typeof NULL_DYNAMIC_COMPONENT,
props: (Data & VNodeProps) | null = null,
children: unknown = null,
patchFlag = 0,
dynamicProps: string[] | null = null,
shapeFlag: number = type === Fragment ? 0 : ShapeFlags.ELEMENT,
isBlockNode = false,
needFullChildrenNormalization = false,
): VNode {
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,
targetStart: null,
targetAnchor: null,
staticCount: 0,
shapeFlag,
patchFlag,
dynamicProps,
dynamicChildren: null,
appContext: null,
ctx: currentRenderingInstance,
} as VNode
if (needFullChildrenNormalization) {
normalizeChildren(vnode, children)
// normalize suspense children
if (__FEATURE_SUSPENSE__ && shapeFlag & ShapeFlags.SUSPENSE) {
;(type as typeof SuspenseImpl).normalize(vnode)
}
} else if (children) {
// compiled element vnode - if children is passed, only possible types are
// string or Array.
vnode.shapeFlag |= isString(children)
? ShapeFlags.TEXT_CHILDREN
: ShapeFlags.ARRAY_CHILDREN
}
// validate key
if (__DEV__ && vnode.key !== vnode.key) {
warn(`VNode created with invalid key (NaN). VNode type:`, vnode.type)
}
// track vnode for block tree
if (
isBlockTreeEnabled > 0 &&
// avoid a block node from tracking itself
!isBlockNode &&
// has current parent block
currentBlock &&
// presence of a patch flag indicates this node needs patching on updates.
// component nodes also should always be patched, because even if the
// component doesn't need to update, it needs to persist the instance on to
// the next vnode so that it can be properly unmounted later.
(vnode.patchFlag > 0 || shapeFlag & ShapeFlags.COMPONENT) &&
// the EVENTS flag is only for hydration and if it is the only flag, the
// vnode should not be considered dynamic due to handler caching.
vnode.patchFlag !== PatchFlags.NEED_HYDRATION
) {
currentBlock.push(vnode)
}
if (__COMPAT__) {
convertLegacyVModelProps(vnode)
defineLegacyVNodeProperties(vnode)
}
return vnode
}
export { createBaseVNode as createElementVNode }
export const createVNode = (
__DEV__ ? createVNodeWithArgsTransform : _createVNode
) as typeof _createVNode
function _createVNode(
type: VNodeTypes | ClassComponent | typeof NULL_DYNAMIC_COMPONENT,
props: (Data & VNodeProps) | null = null,
children: unknown = null,
patchFlag: number = 0,
dynamicProps: string[] | null = null,
isBlockNode = false,
): VNode {
if (!type || type === NULL_DYNAMIC_COMPONENT) {
if (__DEV__ && !type) {
warn(`Invalid vnode type when creating vnode: ${type}.`)
}
type = Comment
}
if (isVNode(type)) {
// createVNode receiving an existing vnode. This happens in cases like
// <component :is="vnode"/>
// #2078 make sure to merge refs during the clone instead of overwriting it
const cloned = cloneVNode(type, props, true /* mergeRef: true */)
if (children) {
normalizeChildren(cloned, children)
}
if (isBlockTreeEnabled > 0 && !isBlockNode && currentBlock) {
if (cloned.shapeFlag & ShapeFlags.COMPONENT) {
currentBlock[currentBlock.indexOf(type)] = cloned
} else {
currentBlock.push(cloned)
}
}
cloned.patchFlag = PatchFlags.BAIL
return cloned
}
// class component normalization.
if (isClassComponent(type)) {
type = type.__vccOpts
}
// 2.x async/functional component compat
if (__COMPAT__) {
type = convertLegacyComponent(type, currentRenderingInstance)
}
// class & style normalization.
if (props) {
// for reactive or proxy objects, we need to clone it to enable mutation.
props = guardReactiveProps(props)!
let { class: klass, style } = props
if (klass && !isString(klass)) {
props.class = normalizeClass(klass)
}
if (isObject(style)) {
// reactive state objects need to be cloned since they are likely to be
// mutated
if (isProxy(style) && !isArray(style)) {
style = extend({}, style)
}
props.style = normalizeStyle(style)
}
}
// encode the vnode type information into a bitmap
const shapeFlag = isString(type)
? ShapeFlags.ELEMENT
: __FEATURE_SUSPENSE__ && isSuspense(type)
? ShapeFlags.SUSPENSE
: isTeleport(type)
? ShapeFlags.TELEPORT
: isObject(type)
? ShapeFlags.STATEFUL_COMPONENT
: isFunction(type)
? ShapeFlags.FUNCTIONAL_COMPONENT
: 0
if (__DEV__ && shapeFlag & ShapeFlags.STATEFUL_COMPONENT && isProxy(type)) {
type = toRaw(type)
warn(
`Vue received a Component that was made a reactive object. This can ` +
`lead to unnecessary performance overhead and should be avoided by ` +
`marking the component with \`markRaw\` or using \`shallowRef\` ` +
`instead of \`ref\`.`,
`\nComponent that was made reactive: `,
type,
)
}
return createBaseVNode(
type,
props,
children,
patchFlag,
dynamicProps,
shapeFlag,
isBlockNode,
true,
)
}
export function guardReactiveProps(
props: (Data & VNodeProps) | null,
): (Data & VNodeProps) | null {
if (!props) return null
return isProxy(props) || isInternalObject(props) ? extend({}, props) : props
}
export function cloneVNode<T, U>(
vnode: VNode<T, U>,
extraProps?: (Data & VNodeProps) | null,
mergeRef = false,
cloneTransition = false,
): VNode<T, U> {
// This is intentionally NOT using spread or extend to avoid the runtime
// key enumeration cost.
const { props, ref, patchFlag, children, transition } = vnode
const mergedProps = extraProps ? mergeProps(props || {}, extraProps) : props
const cloned: VNode<T, U> = {
__v_isVNode: true,
__v_skip: true,
type: vnode.type,
props: mergedProps,
key: mergedProps && normalizeKey(mergedProps),
ref:
extraProps && extraProps.ref
? // #2078 in the case of <component :is="vnode" ref="extra"/>
// if the vnode itself already has a ref, cloneVNode will need to merge
// the refs so the single vnode can be set on multiple refs
mergeRef && ref
? isArray(ref)
? ref.concat(normalizeRef(extraProps)!)
: [ref, normalizeRef(extraProps)!]
: normalizeRef(extraProps)
: ref,
scopeId: vnode.scopeId,
slotScopeIds: vnode.slotScopeIds,
children:
__DEV__ && patchFlag === PatchFlags.CACHED && isArray(children)
? (children as VNode[]).map(deepCloneVNode)
: children,
target: vnode.target,
targetStart: vnode.targetStart,
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 === PatchFlags.CACHED // hoisted node
? PatchFlags.FULL_PROPS
: patchFlag | PatchFlags.FULL_PROPS
: patchFlag,
dynamicProps: vnode.dynamicProps,
dynamicChildren: vnode.dynamicChildren,
appContext: vnode.appContext,
dirs: vnode.dirs,
transition,
// These should technically only be non-null on mounted VNodes. However,
// they *should* be copied for kept-alive vnodes. So we just always copy
// them since them being non-null during a mount doesn't affect the logic as
// they will simply be overwritten.
component: vnode.component,
suspense: vnode.suspense,
ssContent: vnode.ssContent && cloneVNode(vnode.ssContent),
ssFallback: vnode.ssFallback && cloneVNode(vnode.ssFallback),
el: vnode.el,
anchor: vnode.anchor,
ctx: vnode.ctx,
ce: vnode.ce,
}
// if the vnode will be replaced by the cloned one, it is necessary
// to clone the transition to ensure that the vnode referenced within
// the transition hooks is fresh.
if (transition && cloneTransition) {
setTransitionHooks(
cloned as VNode,
transition.clone(cloned as VNode) as TransitionHooks,
)
}
if (__COMPAT__) {
defineLegacyVNodeProperties(cloned as VNode)
}
return cloned
}
/**
* Dev only, for HMR of hoisted vnodes reused in v-for
* https://github.com/vitejs/vite/issues/2022
*/
function deepCloneVNode(vnode: VNode): VNode {
const cloned = cloneVNode(vnode)
if (isArray(vnode.children)) {
cloned.children = (vnode.children as VNode[]).map(deepCloneVNode)
}
return cloned
}
/**
* @private
*/
export function createTextVNode(text: string = ' ', flag: number = 0): VNode {
return createVNode(Text, null, text, flag)
}
/**
* @private
*/
export function createStaticVNode(
content: string,
numberOfNodes: number,
): VNode {
// 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
*/
export function createCommentVNode(
text: string = '',
// when used as the v-else branch, the comment node must be created as a
// block to ensure correct updates.
asBlock: boolean = false,
): VNode {
return asBlock
? (openBlock(), createBlock(Comment, null, text))
: createVNode(Comment, null, text)
}
export function normalizeVNode(child: VNodeChild): VNode {
if (child == null || typeof child === 'boolean') {
// empty placeholder
return createVNode(Comment)
} else if (isArray(child)) {
// fragment
return createVNode(
Fragment,
null,
// #3666, avoid reference pollution when reusing vnode
child.slice(),
)
} else if (isVNode(child)) {
// 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
export function cloneIfMounted(child: VNode): VNode {
return (child.el === null && child.patchFlag !== PatchFlags.CACHED) ||
child.memo
? child
: cloneVNode(child)
}
export function normalizeChildren(vnode: VNode, children: unknown): void {
let type = 0
const { shapeFlag } = vnode
if (children == null) {
children = null
} else if (isArray(children)) {
type = ShapeFlags.ARRAY_CHILDREN
} else if (typeof children === 'object') {
if (shapeFlag & (ShapeFlags.ELEMENT | ShapeFlags.TELEPORT)) {
// Normalize slot to plain children for plain element and Teleport
const slot = (children as any).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 = ShapeFlags.SLOTS_CHILDREN
const slotFlag = (children as RawSlots)._
if (!slotFlag && !isInternalObject(children)) {
// if slots are not normalized, attach context instance
// (compiled / normalized slots already have context)
;(children as RawSlots)._ctx = currentRenderingInstance
} else if (slotFlag === SlotFlags.FORWARDED && currentRenderingInstance) {
// a child component receives forwarded slots from the parent.
// its slot type is determined by its parent's slot type.
if (
(currentRenderingInstance.slots as RawSlots)._ === SlotFlags.STABLE
) {
;(children as RawSlots)._ = SlotFlags.STABLE
} else {
;(children as RawSlots)._ = SlotFlags.DYNAMIC
vnode.patchFlag |= PatchFlags.DYNAMIC_SLOTS
}
}
}
} else if (isFunction(children)) {
children = { default: children, _ctx: currentRenderingInstance }
type = ShapeFlags.SLOTS_CHILDREN
} else {
children = String(children)
// force teleport children to array so it can be moved around
if (shapeFlag & ShapeFlags.TELEPORT) {
type = ShapeFlags.ARRAY_CHILDREN
children = [createTextVNode(children as string)]
} else {
type = ShapeFlags.TEXT_CHILDREN
}
}
vnode.children = children as VNodeNormalizedChildren
vnode.shapeFlag |= type
}
export function mergeProps(...args: (Data & VNodeProps)[]): Data {
const ret: Data = {}
for (let i = 0; i < args.length; i++) {
const toMerge = args[i]
for (const key in toMerge) {
if (key === 'class') {
if (ret.class !== toMerge.class) {
ret.class = normalizeClass([ret.class, toMerge.class])
}
} else if (key === 'style') {
ret.style = normalizeStyle([ret.style, toMerge.style])
} else if (isOn(key)) {
const existing = ret[key]
const incoming = toMerge[key]
if (
incoming &&
existing !== incoming &&
!(isArray(existing) && existing.includes(incoming))
) {
ret[key] = existing
? [].concat(existing as any, incoming as any)
: incoming
}
} else if (key !== '') {
ret[key] = toMerge[key]
}
}
}
return ret
}
export function invokeVNodeHook(
hook: VNodeHook,
instance: ComponentInternalInstance | null,
vnode: VNode,
prevVNode: VNode | null = null,
): void {
callWithAsyncErrorHandling(hook, instance, ErrorCodes.VNODE_HOOK, [
vnode,
prevVNode,
])
}
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