src/test/ui/mut/mut-pattern-mismatched.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 fn main() {
  12     let foo = &mut 1;
  13
  14     // (separate lines to ensure the spans are accurate)
  15
  16      let &_ //~  ERROR mismatched types
  17             //~| expected type `&mut {integer}`
  18             //~| found type `&_`
  19             //~| types differ in mutability
  20         = foo;
  21     let &mut _ = foo;
  22
  23     let bar = &1;
  24     let &_ = bar;
  25     let &mut _ //~  ERROR mismatched types
  26                //~| expected type `&{integer}`
  27                //~| found type `&mut _`
  28                //~| types differ in mutability
  29          = bar;
  30 }