Memory management

[penzn]

Sharing linear memory between WASM and JavaScript without shared memory management is slightly hazardous -- one side can easily clobber what the other wrote. It would be beneficial to provide C memory management functionality in wasm libc, that can be used for both JS and WebAssembly, similar to what Rust does.

[penzn]

Ping @sunfishcode

[sunfishcode]

I think tools that ease the interop between JS and wasm are outside the scope of reference-sysroot.

One thing that should significantly help in this area is the host bindings proposal. That will allow one to pass a slice of linear memory to a function, rather than just exporting all of memory.

[sunfishcode]

Host bindings has evolved into WebIDL bindings which is evolving further and aiming to be not specific to the Web. It's an ongoing story, but that's where I expect this issue will be solved, rather than in reference-sysroot.