rust/src/test/compile-fail/pattern-tyvar.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.

// error-pattern: mismatched types

enum bar { t1((), Option<Vec<isize> >), t2, }

fn foo(t: bar) {
    match t {
      bar::t1(_, Some::<isize>(x)) => {
        println!("{}", x);
      }
      _ => { panic!(); }
    }
}

fn main() { }