1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
|
// @strict: true
type Op<I, O> = (thing: Thing<I>) => Thing<O>;
type Thing<T> = {
value: T;
pipe<A, B>(
opA: Op<T, A>,
opB: Op<A, B>,
): Thing<B>;
};
type Box<V> = { data: V };
declare const thing: Thing<number>;
declare function map<T, R>(project: (value: T) => R): Op<T, R>;
declare function tap<T>(next: (value: T) => void): Op<T, T>;
declare function box<V>(data: V): Box<V>;
declare function createAndUnbox<V>(factory: () => Thing<V | Box<V>>): Thing<V>;
declare function log(value: any): void;
const result1 = createAndUnbox(() => thing.pipe(
map((data) => box(data)),
tap((v) => log(v)),
));
const result2 = createAndUnbox(() => thing.pipe(
tap((v) => log(v)),
map((data) => box(data)),
));
|