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/ graphql-parser.d.ts
Created
July 25, 2023 06:38
A type-level graphql lexer & parser & ts converter.
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| // Utility | |
| type GetFirstCharacter<Text extends string> = Text extends `${infer First}${infer Rest}` ? First : never; | |
| type StringStartsWith<Source extends string, Char extends string> = Source extends `${infer First}${infer Rest}` | |
| ? First extends Char | |
| ? true | |
| : false | |
| : false; | |
| type SliceStringFirst<Source extends string> = Source extends `${infer First}${infer Rest}` | |
| ? Rest | |
| : never; |
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| type StringToArray<str extends string> = str extends `${infer First}${infer Rest}` | |
| ? [ First, ...StringToArray<Rest> ] | |
| : [] | |
| type NewArray<length extends number, arr extends any[] = []> = arr["length"] extends length | |
| ? arr | |
| : NewArray<length, [ ...arr, any ]>; | |
| type New2DArray<length extends number, arr extends any[][] = []> = arr["length"] extends length | |
| ? arr |