TypeScript -> AST -> TypeScript

Question

Is there a way to parse a TypeScript file to an AST, modify the AST, and parse it then back to TypeScript as the tools Esprima + Escodegen are able to?

Important is that I do NOT want to compile/transpile the TypeScript code first into JavaScript.

Might github.com/Microsoft/TypeScript/wiki/… be what you're after? — Joe Clay
– Joe Clay, Commented Oct 7, 2016 at 13:00
@JoeClay The problem is that there is apparently no way to modify the AST of the .ts file with the public API. I think this is what is discussed also here in #7580. Am I right? — cape
– cape, Commented Oct 13, 2016 at 14:49
Looks like it ): You might have to do some digging through the private API if you want to achieve this right now, by the looks of things. — Joe Clay
– Joe Clay, Commented Oct 13, 2016 at 15:50
In astexplorer.net you could see your AST (under menu 'acorn' choose 'typescript') — Stefan van de Vooren
– Stefan van de Vooren, Commented Nov 7, 2018 at 10:18

Andzej Maciusovic · Accepted Answer · 2017-12-23 21:20:24Z

7

Yes, with Typescript 2.x you can transform ast. Here is a good blog post about it http://blog.scottlogic.com/2017/05/02/typescript-compiler-api-revisited.html. In the official typescript wiki it is not well documented yet.

answered Dec 23, 2017 at 21:20

Andzej Maciusovic

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