Using Typescript Compiler API to rewrite typescript file

Question

I'm trying to work with Typescript Compiler API to create a tool for merging typescript files. I'd like to know is there a way to:

Change AST after it was produced by parsing .ts file.
Serialize changed AST back to .ts file

I have read documentation on Compiler API, but it seems to cover only read-only uses-cases of working with AST, while I'm more interesting in modifying source files.

Thanks for any help in advance.

This is not very important - in place or create another tree and write it. I prefer to work at AST level hovewer, but right now i'm researching a solution based on working with text, inserting it at the locations computed from AST. — execc
– execc, Commented May 8, 2017 at 16:38

basarat · Accepted Answer · 2017-05-09 01:54:10Z

6

Change AST after it was produced by parsing .ts file. Serialize changed AST back to .ts file

Both of these are emitter plugins, you need to add a custom transformer. The best docs are still in the PR https://github.com/Microsoft/TypeScript/pull/13940 🌹

answered May 9, 2017 at 1:54

basarat

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