]>
Commit | Line | Data |
---|---|---|
1 | export function isPromise <T = unknown> (value: T | Promise<T>): value is Promise<T> { | |
2 | return value && typeof (value as Promise<T>).then === 'function' | |
3 | } | |
4 | ||
5 | export function isCatchable (value: any) { | |
6 | return value && typeof value.catch === 'function' | |
7 | } | |
8 | ||
9 | export function timeoutPromise <T> (promise: Promise<T>, timeoutMs: number) { | |
10 | let timer: ReturnType<typeof setTimeout> | |
11 | ||
12 | return Promise.race([ | |
13 | promise, | |
14 | ||
15 | new Promise((_res, rej) => { | |
16 | timer = setTimeout(() => rej(new Error('Timeout')), timeoutMs) | |
17 | }) | |
18 | ]).finally(() => clearTimeout(timer)) | |
19 | } | |
20 | ||
21 | export function promisify0<A> (func: (cb: (err: any, result: A) => void) => void): () => Promise<A> { | |
22 | return function promisified (): Promise<A> { | |
23 | return new Promise<A>((resolve: (arg: A) => void, reject: (err: any) => void) => { | |
24 | // eslint-disable-next-line no-useless-call | |
25 | func.apply(null, [ (err: any, res: A) => err ? reject(err) : resolve(res) ]) | |
26 | }) | |
27 | } | |
28 | } | |
29 | ||
30 | // Thanks to https://gist.github.com/kumasento/617daa7e46f13ecdd9b2 | |
31 | export function promisify1<T, A> (func: (arg: T, cb: (err: any, result: A) => void) => void): (arg: T) => Promise<A> { | |
32 | return function promisified (arg: T): Promise<A> { | |
33 | return new Promise<A>((resolve: (arg: A) => void, reject: (err: any) => void) => { | |
34 | // eslint-disable-next-line no-useless-call | |
35 | func.apply(null, [ arg, (err: any, res: A) => err ? reject(err) : resolve(res) ]) | |
36 | }) | |
37 | } | |
38 | } | |
39 | ||
40 | // eslint-disable-next-line max-len | |
41 | export function promisify2<T, U, A> (func: (arg1: T, arg2: U, cb: (err: any, result: A) => void) => void): (arg1: T, arg2: U) => Promise<A> { | |
42 | return function promisified (arg1: T, arg2: U): Promise<A> { | |
43 | return new Promise<A>((resolve: (arg: A) => void, reject: (err: any) => void) => { | |
44 | // eslint-disable-next-line no-useless-call | |
45 | func.apply(null, [ arg1, arg2, (err: any, res: A) => err ? reject(err) : resolve(res) ]) | |
46 | }) | |
47 | } | |
48 | } | |
49 | ||
50 | // eslint-disable-next-line max-len | |
51 | export function promisify3<T, U, V, A> (func: (arg1: T, arg2: U, arg3: V, cb: (err: any, result: A) => void) => void): (arg1: T, arg2: U, arg3: V) => Promise<A> { | |
52 | return function promisified (arg1: T, arg2: U, arg3: V): Promise<A> { | |
53 | return new Promise<A>((resolve: (arg: A) => void, reject: (err: any) => void) => { | |
54 | // eslint-disable-next-line no-useless-call | |
55 | func.apply(null, [ arg1, arg2, arg3, (err: any, res: A) => err ? reject(err) : resolve(res) ]) | |
56 | }) | |
57 | } | |
58 | } |