Function updateFunctionComponent

packages/react-reconciler/src/beginWork.ts:217–234

(
	wip: FiberNode,
	Component: FiberNode['type'],
	renderLane: Lane
)

}

function updateFunctionComponent(
	wip: FiberNode,
	Component: FiberNode['type'],
	renderLane: Lane
) {
	prepareToReadContext(wip, renderLane);
	// render
	const nextChildren = renderWithHooks(wip, Component, renderLane);

	const current = wip.alternate;
	if (current !== null && !didReceiveUpdate) {
		bailoutHook(wip, renderLane);
		return bailoutOnAlreadyFinishedWork(wip, renderLane);
	}

	reconcileChildren(wip, nextChildren);
	return wip.child;
}

function updateHostRoot(wip: FiberNode, renderLane: Lane) {
	const baseState = wip.memoizedState;