Generates corresponding .d.ts file

[cschroeter]

It would be great if we could specify (like source maps) an option to also generate declaration files.

[kdy1]

I've been agonized if it is possible without fully blown typescript parser. I thinks it's not possible yet.

(I'm working on a fully-blown typescript compiler, but It would take some time.)

[cschroeter]

Okay, I get it. Unfortunately the advantage of swc is kind of lost when you need the declaration files, since you have to run tsc --emitOnlyDeclaration anyway

[kdy1]

Reopening as I checked an output from tsc and I noticed that it's possible without a full type checker.
My ts checker branch (already) contains enough code to emit types of correct typescript files.

Currentlly it cannot infer the type of parameter, but it's okay as d.ts contains it as-is

[cschroeter]

If this were to work, that would be wonderful