wit-bindgen-cli 0.57.1

CLI tool to generate bindings for WIT documents and the component model. 
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package test:resource-aggregates;

interface to-test {
  resource thing {
    constructor(v: u32);
  }

  record r1 {
    thing: thing
  }

  record r2 {
    thing: borrow<thing>
  }

  record r3 {
    thing1: borrow<thing>,
    thing2: thing,
  }

  type t1 = tuple<thing, r1>;

  type t2 = tuple<borrow<thing>>;

  variant v1 {
    thing(thing),
  }

  variant v2 {
    thing(borrow<thing>),
  }

  type l1 = list<thing>;

  type l2 = list<borrow<thing>>;

  foo: func(
    r1: r1,
    r2: r2,
    r3: r3,
    t1: t1,
    t2: t2,
    v1: v1,
    v2: v2,
    l1: l1,
    l2: l2,
    o1: option<thing>,
    o2: option<borrow<thing>>,
    result1: result<thing>,
    result2: result<borrow<thing>>,
  ) -> u32;
}

world test {
  export to-test;
}

world runner {
  import to-test;

  export run: func();
}