pushOffscreenSuspenseHandler() — react Function Reference

Source Code

packages/react-reconciler/src/ReactFiberSuspenseContext.js lines 125–142

export function pushOffscreenSuspenseHandler(fiber: Fiber): void {
  if (fiber.tag === OffscreenComponent) {
    // A SuspenseList context is only pushed here to avoid a push/pop mismatch.
    // Reuse the current value on the stack.
    // TODO: We can avoid needing to push here by by forking popSuspenseHandler
    // into separate functions for Activity, Suspense and Offscreen.
    push(suspenseStackCursor, suspenseStackCursor.current, fiber);
    push(suspenseHandlerStackCursor, fiber, fiber);
    if (shellBoundary === null) {
      // We're rendering hidden content. If it suspends, we can handle it by
      // just not committing the offscreen boundary.
      shellBoundary = fiber;
    }
  } else {
    // This is a LegacyHidden component.
    reuseSuspenseHandlerOnStack(fiber);
  }
}