issue-15129.rs

// Copyright 2014 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.


pub enum T {
    T1(()),
    T2(())
}

pub enum V {
    V1(isize),
    V2(bool)
}

fn foo(x: (T, V)) -> String {
    match x {
        (T::T1(()), V::V1(i))  => format!("T1(()), V1({})", i),
        (T::T2(()), V::V2(b))  => format!("T2(()), V2({})", b),
        _ => String::new()
    }
}


fn main() {
    assert_eq!(foo((T::T1(()), V::V1(99))), "T1(()), V1(99)".to_string());
    assert_eq!(foo((T::T2(()), V::V2(true))), "T2(()), V2(true)".to_string());
}