Helpful references

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This is just to document some helpful pointers to code that might help for Charlotte development. Here's a start:

• Walt is an MIT-licensed JavaScript package that compiles a JavaScript-like language to WebAssembly. It's a close match to the WebAssembly/Charlotte approach. Right now, it looks like it can do:
  • Arrays
  • Composite objects
  • Direct binary wasm generation without extra tools

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wasm-ffi is a JavaScript package that helps with interoperability of JavaScript and WebAssembly. For example, it handles calling wasm functions with string or array arguments. Currently, it supports wasm compiled by C and Rust, and AssemblyScript is upcoming. It looks like a great fit for use with Charlotte. I'm not sure we have to do much on our end to support it other than following the C ffi when we write out structs, arrays, and strings to memory.

wasm-bindgen is another interop package. This one is more Rust-focused, but it might have some helpful ideas.

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Cheerp is hybrid like Charlotte in that it can compile to either JS or WASM (it compiles C/C++). It's GPL2, so we can't look at the code. I assume we can look at the docs. Blog here.