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a1587156 C |
1 | /* eslint-disable @typescript-eslint/array-type */ |
2 | ||
453e83ea C |
3 | export type FunctionPropertyNames<T> = { |
4 | [K in keyof T]: T[K] extends Function ? K : never | |
5 | }[keyof T] | |
5224c394 C |
6 | |
7 | export type FunctionProperties<T> = Pick<T, FunctionPropertyNames<T>> | |
453e83ea | 8 | |
453e83ea C |
9 | export type PickWith<T, KT extends keyof T, V> = { |
10 | [P in KT]: T[P] extends V ? V : never | |
11 | } | |
12 | ||
13 | export type PickWithOpt<T, KT extends keyof T, V> = { | |
14 | [P in KT]?: T[P] extends V ? V : never | |
15 | } | |
8424c402 C |
16 | |
17 | // https://github.com/krzkaczor/ts-essentials Rocks! | |
18 | export type DeepPartial<T> = { | |
19 | [P in keyof T]?: T[P] extends Array<infer U> | |
20 | ? Array<DeepPartial<U>> | |
21 | : T[P] extends ReadonlyArray<infer U> | |
22 | ? ReadonlyArray<DeepPartial<U>> | |
23 | : DeepPartial<T[P]> | |
10a105f0 | 24 | } |
67ed6552 C |
25 | |
26 | type Primitive = string | Function | number | boolean | Symbol | undefined | null | |
27 | export type DeepOmitHelper<T, K extends keyof T> = { | |
28 | [P in K]: // extra level of indirection needed to trigger homomorhic behavior | |
29 | T[P] extends infer TP // distribute over unions | |
30 | ? TP extends Primitive | |
31 | ? TP // leave primitives and functions alone | |
32 | : TP extends any[] | |
33 | ? DeepOmitArray<TP, K> // Array special handling | |
34 | : DeepOmit<TP, K> | |
35 | : never | |
36 | } | |
37 | export type DeepOmit<T, K> = T extends Primitive ? T : DeepOmitHelper<T, Exclude<keyof T, K>> | |
38 | ||
39 | export type DeepOmitArray<T extends any[], K> = { | |
40 | [P in keyof T]: DeepOmit<T[P], K> | |
41 | } |