@studiohyperdrive/ngx-forms
Version:
An Angular package to help with complex forms and their validation.
35 lines (34 loc) • 1.03 kB
TypeScript
import { AbstractControl, FormGroup } from '@angular/forms';
export type FormAccessorControlsEntity<FormAccessorFormType extends AbstractControl> = FormAccessorFormType extends FormGroup ? ControlPaths<FormAccessorFormType> | 'formAccessorSelf' : 'formAccessorSelf';
type Previous = [
never,
0,
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
...0[]
];
type Join<Key, Path> = Key extends string | number ? Path extends string | number ? `${Key}${'' extends Path ? '' : '.'}${Path}` : never : never;
type ControlPaths<FormAccessorFormType extends AbstractControl, Depth extends number = 10> = [
Depth
] extends [never] ? never : FormAccessorFormType extends FormGroup ? {
[Key in keyof FormAccessorFormType['controls']]-?: Key extends string | number ? `${Key}` | Join<Key, ControlPaths<FormAccessorFormType['controls'][Key], Previous[Depth]>> : never;
}[keyof FormAccessorFormType['controls']] : '';
export {};