wasmtime-component-macro 24.0.7

Macros for deriving component interface types from Rust types
Documentation 
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package foo:foo;

world w {
  export simple-export;
  export export-using-import;

  export export-using-export1;
  export export-using-export2;
}

interface simple-export {
  resource a {
    constructor();
    static-a: static func() -> u32;
    method-a: func() -> u32;
  }
}

interface export-using-import {
  use transitive-import.{y};
  resource a {
    constructor(y: y);
    static-a: static func() -> y;
    method-a: func(y: y) -> y;
  }
}

interface transitive-import {
  resource y;
}

interface export-using-export1 {
  resource a {
    constructor();
  }
}

interface export-using-export2 {
  use export-using-export1.{a};
  resource b {
    constructor(a: a);
  }
}