WebIDLParseError, unrecognised tokens

[Ohems]

I'm trying to run the type generation from a fresh clone and with a brand new ammo.idl file last updated in commit 1a601e4. This is the output:

PS D:\Coding\JavaScript\ammo.js-typings> npm install
added 141 packages from 133 contributors and audited 141 packages in 3.155s
found 33 vulnerabilities (14 moderate, 14 high, 5 critical)
  run `npm audit fix` to fix them, or `npm audit` for details
PS D:\Coding\JavaScript\ammo.js-typings> npm run build

> @types/ammo.js@1.0.3 build D:\Coding\JavaScript\ammo.js-typings
> ts-node build.ts


D:\Coding\JavaScript\ammo.js-typings\node_modules\webidl2\dist\webpack:\WebIDL2\lib\tokeniser.js:228
    throw new WebIDLParseError(syntaxError(this.source, this.position, this.current, message));
          ^
WebIDLParseError: Syntax error at line 49, since `interface btVector4`:
btVector4 implements btVector3;
^ Unrecognised tokens
    at tokeniser_Tokeniser.error (D:\Coding\JavaScript\ammo.js-typings\node_modules\webidl2\dist\webpack:\WebIDL2\lib\tokeniser.js:228:11)
    at error (D:\Coding\JavaScript\ammo.js-typings\node_modules\webidl2\dist\webpack:\WebIDL2\lib\webidl2.js:25:15)
    at parseByTokens (D:\Coding\JavaScript\ammo.js-typings\node_modules\webidl2\dist\webpack:\WebIDL2\lib\webidl2.js:90:43)
    at Module.j (D:\Coding\JavaScript\ammo.js-typings\node_modules\webidl2\dist\webpack:\WebIDL2\lib\webidl2.js:105:10)
    at AmmoJsTypeDefinitionsGenerator.generate (D:\Coding\JavaScript\ammo.js-typings\build.ts:219:31)
    at Object.<anonymous> (D:\Coding\JavaScript\ammo.js-typings\build.ts:246:26)
    at Module._compile (node:internal/modules/cjs/loader:1254:14)
    at Module.m._compile (D:\Coding\JavaScript\ammo.js-typings\node_modules\ts-node\src\index.ts:814:23)
    at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
    at Object.require.extensions.<computed> [as .ts] (D:\Coding\JavaScript\ammo.js-typings\node_modules\ts-node\src\index.ts:817:12)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @types/ammo.js@1.0.3 build: `ts-node build.ts`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @types/ammo.js@1.0.3 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\Daniel\AppData\Roaming\npm-cache\_logs\2023-07-25T09_02_57_922Z-debug.log
PS D:\Coding\JavaScript\ammo.js-typings> node --version
v18.16.0
PS D:\Coding\JavaScript\ammo.js-typings> npm --version
6.14.5

I'm on Windows 11, running the commands inside Powershell.

[Ohems]

Seems to be a problem in the WebIDL parser. Inputting the contents of the ammo.idl file to their online parser yields the same error.

[Ohems]

The ammo.idl file appears to have faulty syntax within. Opened an issue here kripken/ammo.js#418