src/test/compile-fail/borrowck/borrowck-report-with-custom-diagnostic.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 #![allow(dead_code)]
  12 fn main() {
  13     // Original borrow ends at end of function
  14     let mut x = 1;
  15     let y = &mut x;
  16     //~^ previous borrow of `x` occurs here; the mutable borrow prevents
  17     let z = &x; //~ ERROR cannot borrow
  18 }
  19 //~^ NOTE previous borrow ends here
  20
  21 fn foo() {
  22     match true {
  23         true => {
  24             // Original borrow ends at end of match arm
  25             let mut x = 1;
  26             let y = &x;
  27             //~^ previous borrow of `x` occurs here; the immutable borrow prevents
  28             let z = &mut x; //~ ERROR cannot borrow
  29         }
  30      //~^ NOTE previous borrow ends here
  31         false => ()
  32     }
  33 }
  34
  35 fn bar() {
  36     // Original borrow ends at end of closure
  37     || {
  38         let mut x = 1;
  39         let y = &mut x;
  40         //~^ previous borrow of `x` occurs here; the mutable borrow prevents
  41         let z = &mut x; //~ ERROR cannot borrow
  42     };
  43  //~^ NOTE previous borrow ends here
  44 }