Roc WASM Platform

roc wasi platform can be used by roc to build wasi modules.

cd examples/helloworld
roc build --target wasm32
wasmtime helloworld.wasm

File example

$ roc build --target=wasm32 examples/file.roc
🔨 Rebuilding platform...
0 errors and 0 warnings found in 227 ms while successfully building:

    examples/file.wasm

$ wasmtime --dir=examples/ examples/file.wasm
SUCCESS opened crash.roc

$ wasmtime --dir=. examples/file.wasm
ERROR unable to file