35 lines
1.0 KiB
TypeScript
35 lines
1.0 KiB
TypeScript
import { isArray, isString, isObject } from '@vue/shared'
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import { warn } from '@vue/runtime-core'
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export function ssrRenderList(
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source: unknown,
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renderItem: (value: unknown, key: string | number, index?: number) => void
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) {
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if (isArray(source) || isString(source)) {
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for (let i = 0, l = source.length; i < l; i++) {
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renderItem(source[i], i)
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}
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} else if (typeof source === 'number') {
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if (__DEV__ && !Number.isInteger(source)) {
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warn(`The v-for range expect an integer value but got ${source}.`)
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return
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}
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for (let i = 0; i < source; i++) {
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renderItem(i + 1, i)
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}
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} else if (isObject(source)) {
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if (source[Symbol.iterator as any]) {
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const arr = Array.from(source as Iterable<any>)
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for (let i = 0, l = arr.length; i < l; i++) {
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renderItem(arr[i], i)
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}
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} else {
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const keys = Object.keys(source)
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for (let i = 0, l = keys.length; i < l; i++) {
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const key = keys[i]
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renderItem(source[key], key, i)
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}
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}
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}
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}
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