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32 lines
679 B
32 lines
679 B
// @flow
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import { Component, type Node } from 'react';
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type RenderFn<T> = (value: T) => Node;
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export type ProviderProps<T> = {
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value: T,
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children?: Node
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};
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export type ConsumerProps<T> = {
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children: RenderFn<T> | [RenderFn<T>],
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observedBits?: number
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};
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export type ConsumerState<T> = {
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value: T
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};
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export type Provider<T> = Component<ProviderProps<T>>;
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export type Consumer<T> = Component<ConsumerProps<T>, ConsumerState<T>>;
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export type Context<T> = {
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Provider: Class<Provider<T>>,
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Consumer: Class<Consumer<T>>
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};
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declare export default function createReactContext<T>(
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defaultValue: T,
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calculateChangedBits?: (prev: T, next: T) => number
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): Context<T>;
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