This is an initial port of WASI based WebAssembly support.
This enables a CRuby binary to be available on Web browser, Serverless Edge environment, and other WebAssembly/WASI embedders.
Currently this port passes basic and bootstrap test suites not using Thread API.
The upstreaming PR on ruby/ruby is here: https://github.com/ruby/ruby/pull/5407
Background¶
For example, CRuby already supports WebAssembly target by Emscripten, but Emscripten heavily depends on JavaScript to emulate some missing features in WebAssembly itself.
In short the WASI is an effort to define a standard set of syscalls for WebAssembly modules, allowing WebAssembly modules to not only be portable across architectures but also be portable across environments implementing this standard set of system calls. The environments includes non JS environments, Edge Computing platforms, IoT devices, and so on.
This is a proposal ticket to support WASI based WebAssembly target.
This is a part of Ruby Association Grant project
