Function pushHostContainer

docs/external/js/react-dom.development.js:14553–14570

(fiber, nextRootInstance)

  }

  function pushHostContainer(fiber, nextRootInstance) {
    // Push current root instance onto the stack;
    // This allows us to reset root when portals are popped.
    push(rootInstanceStackCursor, nextRootInstance, fiber); // Track the context and the Fiber that provided it.
    // This enables us to pop only Fibers that provide unique contexts.

    push(contextFiberStackCursor, fiber, fiber); // Finally, we need to push the host context to the stack.
    // However, we can't just call getRootHostContext() and push it because
    // we'd have a different number of entries on the stack depending on
    // whether getRootHostContext() throws somewhere in renderer code or not.
    // So we push an empty value first. This lets us safely unwind on errors.

    push(contextStackCursor$1, NO_CONTEXT, fiber);
    var nextRootContext = getRootHostContext(nextRootInstance); // Now that we know this function doesn't throw, replace it.

    pop(contextStackCursor$1, fiber);
    push(contextStackCursor$1, nextRootContext, fiber);
  }

  function popHostContainer(fiber) {
    pop(contextStackCursor$1, fiber);