Interface ContextItem

packages/react-reconciler/src/fiberContext.ts:15–19

let lastContextDep: ContextItem<any> | null = null;

export interface ContextItem<Value> {
	context: ReactContext<Value>;
	memoizedState: Value;
	next: ContextItem<Value> | null;
}

let prevContextValue: any = null;
const prevContextValueStack: any[] = [];