How to generate typescript typings from WebIDL

[giniedp]

I am new to emscripten and curious about how people generate d.ts files for 3rd party C++ libraries where nbind or mbind is not an option.

A couple of weeks ago i have written an WebIDL -> d.ts converter specifically for ammo.js

• https://github.com/giniedp/ammojs-typed
• TypeScript declarations? kripken/ammo.js#233

Before doing that i was looking for an existing WebIDL -> d.ts conversion tool but could not find any complete solution. The closest i could find was

• https://github.com/Microsoft/dts-gen which generates d.ts from any js library, so this has incomplete type definitions with lots of any
• https://github.com/microsoft/TSJS-lib-generator which is a project dedicated to DOM apis and not really a tool in my sense

so i am left with these questions

1. is there a WebIDL -> d.ts converter outside of emscripten that i have overseen?
2. is such tool desired for emscripten (or maybe already exists)?
3. should such a tool be part of emscripten or should it be a standalone project

[kripken]

I don't think there is one. I think it could be useful! And yes, would be good to have it in emscripten itself.

[stale]

This issue has been automatically marked as stale because there has been no activity in the past year. It will be closed automatically if no further activity occurs in the next 30 days. Feel free to re-open at any time if this issue is still relevant.

[tchakabam]

@giniedp I have understood you built it yourself? :) https://github.com/giniedp/webidl2ts

[giniedp]

@giniedp I have understood you built it yourself? :) https://github.com/giniedp/webidl2ts

yes, i did. But haven't worked on that topic for a while now.

[isaac-mason]

JoltPhysics.js and recast-navigation-js are using a fork of @giniedp's webidl2ts to generate typescript types from the emscripten webidl: https://github.com/pmndrs/webidl-dts-gen

We've stumbled through adding fixes aligning generated types with the output of the webidl binder. @giniedp if you're still working on webidl2ts I'm keen to upstream the improvements.

Like webidl2ts, webidl-dts-gen still has an emscripten and non-emscripten mode, but I'm really only supporting it for usage with emscripten.

I'm also keen to help improve the typescript story for the webidl binder itself, but I'm lacking in direction 😅