Function hydrateSuspense

packages/runtime-core/src/components/Suspense.ts:804–854

(
  node: Node,
  vnode: VNode,
  parentComponent: ComponentInternalInstance | null,
  parentSuspense: SuspenseBoundary | null,
  namespace: ElementNamespace,
  slotScopeIds: string[] | null,
  optimized: boolean,
  rendererInternals: RendererInternals,
  hydrateNode: (
    node: Node,
    vnode: VNode,
    parentComponent: ComponentInternalInstance | null,
    parentSuspense: SuspenseBoundary | null,
    slotScopeIds: string[] | null,
    optimized: boolean,
  ) => Node | null,
)

}

function hydrateSuspense(
  node: Node,
  vnode: VNode,
  parentComponent: ComponentInternalInstance | null,
  parentSuspense: SuspenseBoundary | null,
  namespace: ElementNamespace,
  slotScopeIds: string[] | null,
  optimized: boolean,
  rendererInternals: RendererInternals,
  hydrateNode: (
    node: Node,
    vnode: VNode,
    parentComponent: ComponentInternalInstance | null,
    parentSuspense: SuspenseBoundary | null,
    slotScopeIds: string[] | null,
    optimized: boolean,
  ) => Node | null,
): Node | null {
  const suspense = (vnode.suspense = createSuspenseBoundary(
    vnode,
    parentSuspense,
    parentComponent,
    node.parentNode!,
    // eslint-disable-next-line no-restricted-globals
    document.createElement('div'),
    null,
    namespace,
    slotScopeIds,
    optimized,
    rendererInternals,
    true /* hydrating */,
  ))
  // there are two possible scenarios for server-rendered suspense:
  // - success: ssr content should be fully resolved
  // - failure: ssr content should be the fallback branch.
  // however, on the client we don't really know if it has failed or not
  // attempt to hydrate the DOM assuming it has succeeded, but we still
  // need to construct a suspense boundary first
  const result = hydrateNode(
    node,
    (suspense.pendingBranch = vnode.ssContent!),
    parentComponent,
    suspense,
    slotScopeIds,
    optimized,
  )
  if (suspense.deps === 0) {
    suspense.resolve(false, true)
  }
  return result
}

function normalizeSuspenseChildren(vnode: VNode): void {
  const { shapeFlag, children } = vnode