| // 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 a tuple vs the same anonymous field. |
| |
| fn distinct_variant() { |
| let mut y = (1, 2); |
| |
| let a = match y { |
| (ref mut a, _) => a |
| }; |
| |
| let b = match y { |
| (_, ref mut b) => b |
| }; |
| |
| *a += 1; |
| *b += 1; |
| } |
| |
| fn same_variant() { |
| let mut y = (1, 2); |
| |
| let a = match y { |
| (ref mut a, _) => a |
| }; |
| |
| let b = match y { |
| (ref mut b, _) => b //~ ERROR cannot borrow |
| }; |
| |
| *a += 1; |
| *b += 1; |
| } |
| |
| fn main() { |
| } |