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// 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.
// Tests that we are able to distinguish when loans borrow different
// anonymous fields of an enum variant vs the same anonymous field.
enum Foo {
X, Y(usize, usize)
}
fn distinct_variant() {
let mut y = Foo::Y(1, 2);
let a = match y {
Foo::Y(ref mut a, _) => a,
Foo::X => panic!()
};
let b = match y {
Foo::Y(_, ref mut b) => b,
Foo::X => panic!()
};
*a += 1;
*b += 1;
}
fn same_variant() {
let mut y = Foo::Y(1, 2);
let a = match y {
Foo::Y(ref mut a, _) => a,
Foo::X => panic!()
};
let b = match y {
Foo::Y(ref mut b, _) => b, //~ ERROR cannot borrow
Foo::X => panic!()
};
*a += 1;
*b += 1;
}
fn main() {
}
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