witgen

witgen is a library to help you generate wit definitions in a wit file for WebAssembly

Examples

• Into your Rust code:

use witgen::witgen;

#[witgen]
fn test(other: Vec<u8>, number: u8, othernum: i32) -> (String, i64) {
    (String::from("test"), 0i64)
}

• Then you can launch (at the root of your package):

$ cargo witgen generate

• It will generate a witgen.wit file at the root of your package:

test : function(other: list <u8>, number: u8, othernum: s32) -> (string, s64)

Roadmap:

• Implement proc macro #[witgen] to put on enum, struct and functions
• Add proc_macro options (rename, file ?, ...)