Function readContext

packages/react-reconciler/src/ReactFiberNewContext.js:502–516

(context: ReactContext<T>)

}

export function readContext<T>(context: ReactContext<T>): T {
  if (__DEV__) {
    // This warning would fire if you read context inside a Hook like useMemo.
    // Unlike the class check below, it's not enforced in production for perf.
    if (isDisallowedContextReadInDEV) {
      console.error(
        'Context can only be read while React is rendering. ' +
          'In classes, you can read it in the render method or getDerivedStateFromProps. ' +
          'In function components, you can read it directly in the function body, but not ' +
          'inside Hooks like useReducer() or useMemo().',
      );
    }
  }
  return readContextForConsumer(currentlyRenderingFiber, context);
}

export function readContextDuringReconciliation<T>(
  consumer: Fiber,