51 lines
1.5 KiB
TypeScript
51 lines
1.5 KiB
TypeScript
import type { Context } from 'react'
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import { React } from '../utils/react'
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import type { Action, Store, UnknownAction } from 'redux'
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import type { Subscription } from '../utils/Subscription'
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import type { ProviderProps } from './Provider'
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export interface ReactReduxContextValue<
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SS = any,
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A extends Action<string> = UnknownAction,
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> extends Pick<ProviderProps, 'stabilityCheck' | 'identityFunctionCheck'> {
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store: Store<SS, A>
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subscription: Subscription
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getServerState?: () => SS
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}
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const ContextKey = /* @__PURE__ */ Symbol.for(`react-redux-context`)
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const gT: {
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[ContextKey]?: Map<
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typeof React.createContext,
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Context<ReactReduxContextValue | null>
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>
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} = (
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typeof globalThis !== 'undefined'
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? globalThis
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: /* fall back to a per-module scope (pre-8.1 behaviour) if `globalThis` is not available */ {}
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) as any
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function getContext(): Context<ReactReduxContextValue | null> {
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if (!React.createContext) return {} as any
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const contextMap = (gT[ContextKey] ??= new Map<
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typeof React.createContext,
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Context<ReactReduxContextValue | null>
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>())
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let realContext = contextMap.get(React.createContext)
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if (!realContext) {
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realContext = React.createContext<ReactReduxContextValue | null>(
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null as any,
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)
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if (process.env.NODE_ENV !== 'production') {
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realContext.displayName = 'ReactRedux'
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}
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contextMap.set(React.createContext, realContext)
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}
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return realContext
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}
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export const ReactReduxContext = /*#__PURE__*/ getContext()
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export type ReactReduxContextInstance = typeof ReactReduxContext
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