A parser for TypeScript types, written in TypeScript types

Posted on August 4, 2025 by newsflashtom

A parser for TypeScript types, written in TypeScript types

tsints

a parser for typescript types, written in typescript types (no js here!)

testimonials

please no please I beg you — @jakebailey.dev

EM WHAT THE FUCK

ur deranged

Photo: Markus Winkler / Pexels

hell yeah

i cant wait to do ludicrous shit with ts7 speeds

why are you like this

usage

code like this

A technician in uniform working on a motherboard at a desk in a laboratory setting. — Photo: Quang Nguyen Vinh / Pexels

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import type { Parse } from "./parser/index.ts";
type _ = Parse<"{some:[ts, 'type']}">;

evaluates to a @babel/parser-style AST

type _ = {
  type: "TSTypeLiteral";
  members: [
    {
      type: "TSPropertySignature";
      key: {
        type: "Identifier";
        name: "some";
      };
      computed: false;
      typeAnnotation: {
        type: "TSTypeAnnotation";
        typeAnnotation: {
          type: "TSTupleType";
          elementTypes: [
            {
              type: "TSTypeReference";
              typeName: {
                type: "Identifier";
                name: "ts";
              };
            },
            {
              type: "TSLiteralType";
              literal: {
                type: "StringLiteral";
                raw: "'type'";
              };
            },
          ];
        };
      };
    },
  ];
};

should i use this

idk, do you want to spend 5 extra seconds every time you run tsc waiting for it to evaluate the parsing code?

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