When Node.js is run with Amaro, but also with `--jitless` flag error message about lack of `WebAssembly` global could be more descriptive

[arturgawlik]

When I run node --jitless index.ts for this index.ts file

console.log('Hello from TypeScript!');

then I got this error message:

This is small, but maybe it could be improved by making error message a little more descriptive about lack of WebAssembly global object when V8 is running in "JIT-less" mode 🤔

[marco-ippolito]

Yes this is a known problem (like fetch) we can probably improve the error message

[arturgawlik]

I think that those checks should be performed as close as possible to the code which is actually using WebAssembly, so probably one check should be performed in Amaro, and another one in Undici itself. I would go with such solution to mitigate potentially situation when e.g. Amaro will stop using WebAssembly, but assertion whether WebAssembly is present will still be performed in https://github.com/nodejs/node 🤔

[marco-ippolito]

Answered. here nodejs/amaro#353 (comment)
The assertion needs to happen in Node.js where the parser is first instantiated