Is it possible to port Janet's VM to WASM?

[glyh]

If so, we can run Janet bytecodes on WASM, without the whole interpretor.

If that's possible, would it be faster? If I'm trying to implement such thing, what source files should I look into?

If that's not possible, what should an implementation be like to work well with WASM? through LLVM?

Thanks a lot!

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P.S. seems like there's not yet a formal spec for Janet. I hope there will be one soon.
P.S.S If there will be no spec in a short period, could you tell me how should I read the source files?

[sogaiu]

Don't know if you've seen this already, but FWIW there is this issue regarding an official language spec.

[glyh]

Thanks, I've seen this.

[sogaiu]

Regarding reading the source, others may have some better tips, but here are some things I found useful (I've been trying to read and understand the source on and off):

• janet.h can kind of be used as an outline for the public API
• The official docs have some prose descriptions of various parts including but not limited to:
  • Data Structures
  • Fibers
  • The Janet Abstract Machine
  • The Event Loop
  • C API

(I mention the docs because I've found that they sometimes help in interpreting the source.)

I wrote up some steps on getting an LSP server for C working so that code navigation can be done smoothly. Possibly it might be of some use.

On a related note, recently I was shown an article on the general topic of trying to understand an existing code base and I found that it had some good tips.

There is a janet-language/help gitter channel / matrix room as well (in addition to the discussions area here on github) so it might be that some specific questions could be addressed there.