Function safelyAttachRef

packages/react-reconciler/src/commitWork.ts:206–216

(fiber: FiberNode)

};

function safelyAttachRef(fiber: FiberNode) {
	const ref = fiber.ref;
	if (ref !== null) {
		const instance = fiber.stateNode;
		if (typeof ref === 'function') {
			ref(instance);
		} else {
			ref.current = instance;
		}
	}
}

export const commitMutationEffects = commitEffects(
	'mutation',