Function createBuffer

packages/server-renderer/src/render.ts:67–90

()

//   synchronously)
// - An async buffer (a Promise that resolves to a resolved buffer)
export function createBuffer() {
  let appendable = false
  const buffer: SSRBuffer = []
  return {
    getBuffer(): SSRBuffer {
      // Return static buffer and await on items during unroll stage
      return buffer
    },
    push(item: SSRBufferItem): void {
      const isStringItem = isString(item)
      if (appendable && isStringItem) {
        buffer[buffer.length - 1] += item as string
        return
      }
      buffer.push(item)
      appendable = isStringItem
      if (isPromise(item) || (isArray(item) && item.hasAsync)) {
        // promise, or child buffer with async, mark as async.
        // this allows skipping unnecessary await ticks during unroll stage
        buffer.hasAsync = true
      }
    },
  }
}

export function renderComponentVNode(
  vnode: VNode,