rust/src/test/compile-fail/terr-in-field.rs

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

type foo = {a: int, b: int};
type bar = {a: int, b: uint};

fn want_foo(f: foo) {}
fn have_bar(b: bar) {
    want_foo(b); //~ ERROR (in field `b`, expected int but found uint)
}

fn main() {}