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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | 2x 2x 349x 349x 349x 349x 349x 349x 228x 228x 121x 242x 215x 215x 91x 91x 91x 215x 54x 54x 54x 54x 54x 70x 215x 17x 17x 17x 17x 17x 53x 53x 144x 144x 2x 208x 208x 366x 366x 366x 427x 427x 289x 420x 138x 138x 427x 366x 366x 235x 235x 235x 235x 235x 36x 36x 199x 199x 199x 199x 196x 196x 235x 3x 3x 3x 3x 196x 196x 301x 301x 12x 12x 12x 12x 12x 12x 12x 301x | import {
type App,
type VNode,
createApp,
createVNode,
ssrContextKey,
ssrUtils,
} from 'vue'
import { isPromise, isString } from '@vue/shared'
import { type SSRBuffer, type SSRContext, renderComponentVNode } from './render'
const { isVNode } = ssrUtils
function nestedUnrollBuffer(
buffer: SSRBuffer,
parentRet: string,
startIndex: number,
): Promise<string> | string {
if (!buffer.hasAsync) {
return parentRet + unrollBufferSync(buffer)
}
let ret = parentRet
for (let i = startIndex; i < buffer.length; i += 1) {
const item = buffer[i]
if (isString(item)) {
ret += item
continue
}
if (isPromise(item)) {
return item.then(nestedItem => {
buffer[i] = nestedItem
return nestedUnrollBuffer(buffer, ret, i)
})
}
const result = nestedUnrollBuffer(item, ret, 0)
if (isPromise(result)) {
return result.then(nestedItem => {
buffer[i] = nestedItem
return nestedUnrollBuffer(buffer, '', i)
})
}
ret = result
}
return ret
}
export function unrollBuffer(buffer: SSRBuffer): Promise<string> | string {
return nestedUnrollBuffer(buffer, '', 0)
}
function unrollBufferSync(buffer: SSRBuffer): string {
let ret = ''
for (let i = 0; i < buffer.length; i++) {
let item = buffer[i]
if (isString(item)) {
ret += item
} else {
// since this is a sync buffer, child buffers are never promises
ret += unrollBufferSync(item as SSRBuffer)
}
}
return ret
}
export async function renderToString(
input: App | VNode,
context: SSRContext = {},
): Promise<string> {
if (isVNode(input)) {
// raw vnode, wrap with app (for context)
return renderToString(createApp({ render: () => input }), context)
}
// rendering an app
const vnode = createVNode(input._component, input._props)
vnode.appContext = input._context
// provide the ssr context to the tree
input.provide(ssrContextKey, context)
const buffer = await renderComponentVNode(vnode)
const result = await unrollBuffer(buffer as SSRBuffer)
await resolveTeleports(context)
if (context.__watcherHandles) {
for (const unwatch of context.__watcherHandles) {
unwatch()
}
}
return result
}
export async function resolveTeleports(context: SSRContext): Promise<void> {
if (context.__teleportBuffers) {
context.teleports = context.teleports || {}
for (const key in context.__teleportBuffers) {
// note: it's OK to await sequentially here because the Promises were
// created eagerly in parallel.
context.teleports[key] = await unrollBuffer(
await Promise.all([context.__teleportBuffers[key]]),
)
}
}
}
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