mirror of
https://github.com/xibyte/jsketcher
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62 lines
1.3 KiB
TypeScript
62 lines
1.3 KiB
TypeScript
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interface Observable<T> {
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attach(callback: (value: T) => any): () => void
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}
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interface Stream<T> extends Observable<T> {
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map<V>(fn: (value: T) => V);
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filter(predicate: (T) => boolean): Stream<T>;
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pairwise(first?: T): Stream<[T, T]>;
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scan<R>(seed: R, scanFn: (accum: R, current: T) => R): Stream<R>;
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remember(initialValue: T, usingStream?: any): StateStream<T>
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distinct(): Stream<T>;
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throttle(delay?: number, accumulator?: any): Stream<T>;
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pipe(otherStream): () => void;
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}
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interface Emitter<T> extends Stream<T> {
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next(value?: T) : void;
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}
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interface StateStream<T> extends Emitter<T> {
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value: T;
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update(updater: (T) => T): void;
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mutate(mutator: (T) => void): void;
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}
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export function stream<T>(): Emitter<T>;
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export function eventStream<T>(): Emitter<T>;
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export function combine<T>(...streams: Stream<any>[]): Stream<T>;
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export function merge(...streams: Stream<any>[]): Stream<any>;
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export function state<T>(initialValue: T): StateStream<T>;
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export function distinctState<T>(initialValue: T): StateStream<T>;
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export function externalState<T>(get: any, set: any): StateStream<T>;
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export function never<T>(): Emitter<T>
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export function constant<T>(value: T): Stream<T>
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export function map<T, V>(stream: Stream<T>, fn: (T) => V): Stream<V>;
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export function filter<T>(stream: Stream<T>, predicate: (T) => boolean): Stream<T>;
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