import * as React from 'react';

export default function createReactContext<T>(
	defaultValue: T,
	calculateChangedBits?: (prev: T, next: T) => number
): Context<T>;

type RenderFn<T> = (value: T) => React.ReactNode;

export type Context<T> = {
	Provider: React.ComponentClass<ProviderProps<T>>;
	Consumer: React.ComponentClass<ConsumerProps<T>>;
};

export type ProviderProps<T> = {
	value: T;
	children?: React.ReactNode;
	observedBits?: any,
};

export type ConsumerProps<T> = {
	children: RenderFn<T> | [RenderFn<T>];
	observedBits?: number;
};