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perf(runtime-vapor): improve traverse children

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三咲智子 Kevin Deng 2024-02-22 02:07:38 +08:00
parent fa0ca8a5af
commit 531f4f0052
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GPG Key ID: 69992F2250DFD93E
2 changed files with 16 additions and 8 deletions
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8
packages/runtime-vapor/src/dom.ts
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@ -65,14 +65,6 @@ export function remove(block: Block, parent: ParentBlock) {
} }
} }
/*! #__NO_SIDE_EFFECTS__ */
export function children(node: Node | Node[], ...paths: number[]): Node {
for (const idx of paths) {
node = isArray(node) ? node[idx] : node.childNodes[idx]
}
return node as Node
}
/*! #__NO_SIDE_EFFECTS__ */ /*! #__NO_SIDE_EFFECTS__ */
export function createTextNode(val?: unknown): Text { export function createTextNode(val?: unknown): Text {
// eslint-disable-next-line no-restricted-globals // eslint-disable-next-line no-restricted-globals

16
packages/runtime-vapor/src/template.ts
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@ -1,3 +1,5 @@
import { isArray } from '@vue/shared'
/*! #__NO_SIDE_EFFECTS__ */ /*! #__NO_SIDE_EFFECTS__ */
export function template(str: string): () => ChildNode[] { export function template(str: string): () => ChildNode[] {
let cached = false let cached = false
@ -24,3 +26,17 @@ export function template(str: string): () => ChildNode[] {
function fragmentToNodes(node: DocumentFragment): ChildNode[] { function fragmentToNodes(node: DocumentFragment): ChildNode[] {
return Array.from((node.cloneNode(true) as DocumentFragment).childNodes) return Array.from((node.cloneNode(true) as DocumentFragment).childNodes)
} }
/*! #__NO_SIDE_EFFECTS__ */
export function children(node: Node | Node[], ...paths: number[]): Node {
for (const idx of paths) {
if (isArray(node)) {
node = node[idx]
} else {
for (let i = 0; i <= idx; i++) {
node = (node as Node)[i === 0 ? 'firstChild' : 'nextSibling']!
}
}
}
return node as Node
}