Function popProvider

packages/react-server/src/ReactFizzNewContext.js:230–280

(context: ReactContext<T>)

}

export function popProvider<T>(context: ReactContext<T>): ContextSnapshot {
  const prevSnapshot = currentActiveSnapshot;

  if (prevSnapshot === null) {
    throw new Error(
      'Tried to pop a Context at the root of the app. This is a bug in React.',
    );
  }

  if (__DEV__) {
    if (prevSnapshot.context !== context) {
      console.error(
        'The parent context is not the expected context. This is probably a bug in React.',
      );
    }
  }
  if (isPrimaryRenderer) {
    const value = prevSnapshot.parentValue;
    prevSnapshot.context._currentValue = value;
    if (__DEV__) {
      if (
        context._currentRenderer !== undefined &&
        context._currentRenderer !== null &&
        context._currentRenderer !== rendererSigil
      ) {
        console.error(
          'Detected multiple renderers concurrently rendering the ' +
            'same context provider. This is currently unsupported.',
        );
      }
      context._currentRenderer = rendererSigil;
    }
  } else {
    const value = prevSnapshot.parentValue;
    prevSnapshot.context._currentValue2 = value;
    if (__DEV__) {
      if (
        context._currentRenderer2 !== undefined &&
        context._currentRenderer2 !== null &&
        context._currentRenderer2 !== rendererSigil
      ) {
        console.error(
          'Detected multiple renderers concurrently rendering the ' +
            'same context provider. This is currently unsupported.',
        );
      }
      context._currentRenderer2 = rendererSigil;
    }
  }
  return (currentActiveSnapshot = prevSnapshot.parent);
}

export function getActiveContext(): ContextSnapshot {
  return currentActiveSnapshot;