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An experimental compiler from Rust to WebAssembly (inactive - do not use)

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mir2wasm

This project is not under development and does nothing useful. If you just want to compile Rust to WASM then the mainline Rust compiler can do that for you. Read https://rustwasm.github.io/book/

An experimental compiler from Rust to WebAssembly, based on rustc + Rust MIR.

This doesn't do anything useful yet.

Hacking notes

I recommend that you install rustup and then use it to install the current rustc nightly version:

Tested with nightly-2017-03-03

git clone https://github.com/brson/mir2wasm.git
cd mir2wasm
rustup override set nightly-2017-03-03
cargo build
cargo run -q -- rust-examples/nocore-hello-world.rs

Do println debugging with debug! so it goes to stderr and print it like:

RUST_LOG=mir2wasm cargo run -q -- rust-examples/nocore-hello-world.rs
rustc -Z unstable-options --unpretty=mir rust-examples/nocore-hello-world.rs

rustc docs.

Plug this stuff into a wast file to print something:

  (import $print_i32 "spectest" "print" (param i32))
  (export "foo" $foo)
...
    (call_import $print_i32 (get_local $1))

Resources

  • miri the MIR interpreter. mir2wasm is derived from it but shares no actual code. It probably should share code though, and there's lots to learn from miri.
  • rustc_trans::mir.
  • roadmap discussion.

License

Licensed under either of

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you shall be dual licensed as above, without any additional terms or conditions.

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An experimental compiler from Rust to WebAssembly (inactive - do not use)

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License

Apache-2.0, MIT licenses found

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LICENSE-APACHE
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LICENSE-MIT

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