typesafe-actions/dist/create-reducer.d.ts

Typesafe Action Creators for Redux / Flux Architectures (in TypeScript)

import { Reducer, Action, Types } from './type-helpers';
declare type HandleActionChainApi<TState, TInputAction extends Action, TRootAction extends Action> = <TActionCreator extends (...args: any[]) => TInputAction, THandledAction extends ReturnType<TActionCreator>, TOutputAction extends Exclude<TInputAction, THandledAction>>(singleOrMultipleCreatorsAndTypes: TActionCreator | TActionCreator[], reducer: (state: TState, action: THandledAction) => TState) => [TOutputAction] extends [Action] ? Reducer<TState, TRootAction> & {
    handlers: Record<Exclude<TRootAction, TOutputAction>['type'], (state: TState, action: TRootAction) => TState>;
    handleAction: HandleActionChainApi<TState, TOutputAction, TRootAction>;
} : Reducer<TState, TRootAction> & {
    handlers: Record<TRootAction['type'], (state: TState, action: TRootAction) => TState>;
};
declare type HandleTypeChainApi<TState, TInputAction extends Action, TRootAction extends Action> = <TType extends TInputAction['type'], THandledAction extends Extract<TInputAction, Action<TType>>, TOutputAction extends Exclude<TInputAction, THandledAction>>(singleOrMultipleCreatorsAndTypes: TType | TType[], reducer: (state: TState, action: THandledAction) => TState) => [TOutputAction] extends [Action] ? Reducer<TState, TRootAction> & {
    handlers: Record<Exclude<TRootAction, TOutputAction>['type'], (state: TState, action: TRootAction) => TState>;
    handleType: HandleTypeChainApi<TState, TOutputAction, TRootAction>;
} : Reducer<TState, TRootAction> & {
    handlers: Record<TRootAction['type'], (state: TState, action: TRootAction) => TState>;
};
declare type GetAction<TAction extends Action, TType extends TAction['type']> = TAction extends Action<TType> ? TAction : never;
declare type InitialHandler<TState, TRootAction extends Action> = {
    [P in TRootAction['type']]?: (state: TState, action: GetAction<TRootAction, P>) => TState;
};
declare type RootAction = Types extends {
    RootAction: infer T;
} ? T : any;
export declare function createReducer<TState, TRootAction extends Action = RootAction>(initialState: TState, initialHandlers?: InitialHandler<TState, TRootAction>): Reducer<TState, TRootAction> & Readonly<{
    handlers: InitialHandler<TState, any>;
    handleAction: [unknown] extends [TRootAction] ? any : HandleActionChainApi<TState, TRootAction, TRootAction>;
    handleType: [unknown] extends [TRootAction] ? any : HandleTypeChainApi<TState, TRootAction, TRootAction>;
}>;
export {};