Jai WASM Plugin

A prototype of a Metaprogram Plugin for compiling Jai to wasm64 (and maybe wasm32).

How it works?

The Metaprogram Plugin sets the LLVM target triple to wasm64.
It then strips all procedure bodies that contain inline assembly (we need to provide non-asm alternatives in the future).
After, it links the WASM binary with the wasm-ld.
Optionally, it uses the wasm64232 tool to convert the 64 WASM binary to 32 one (this is currently untested).

A tiny change in Basic/Print.jai:3 is needed. Change it from USE_SIMD :: true; to USE_SIMD :: CPU == .X64;.
Include the WASM Metaprogram Plugin in your build.jai.
Or compile your program with the following command jai main.jai -plug wasm --- import_dir /path/to/wasm/plugin

Define foreign JavaScript functions with a foreign directive in the following way:

alert :: (s: string) #foreign WASM;

Export Jai procedures with #program_export directive. Optionally you can specify the export name #program_export "export_name".

#program_export
render :: ()  {
    ...
}

When compilation output is set to executable main is automatically exported.

Compile main.jai with the WASM metaprogram plugin with the following command jai main.jai -plug wasm --- import_dir /path/to/wasm/plugin.
Serve public folder with local HTTP server.

This approach is based on jai-wasm thanks!