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refactor(selectors): Capture the type of a selectors projector #1920

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merged 1 commit into from Jun 6, 2019
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refactor(selectors): Capture the type of a selectors projector #1920

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21 changes: 15 additions & 6 deletions modules/store/src/selector.ts
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Expand Up @@ -12,17 +12,26 @@ export type MemoizeFn = (t: AnyFn) => MemoizedProjection;

export type ComparatorFn = (a: any, b: any) => boolean;

export interface MemoizedSelector<State, Result>
extends Selector<State, Result> {
export type DefaultProjectorFn<T> = (...args: any[]) => T;

export interface MemoizedSelector<
State,
Result,
ProjectorFn = DefaultProjectorFn<Result>
> extends Selector<State, Result> {
release(): void;
projector: AnyFn;
projector: ProjectorFn;
setResult: (result?: Result) => void;
}

export interface MemoizedSelectorWithProps<State, Props, Result>
extends SelectorWithProps<State, Props, Result> {
export interface MemoizedSelectorWithProps<
State,
Props,
Result,
ProjectorFn = DefaultProjectorFn<Result>
> extends SelectorWithProps<State, Props, Result> {
release(): void;
projector: AnyFn;
projector: ProjectorFn;
setResult: (result?: Result) => void;
}

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