src/test/ui/nll/closures-in-loops.rs

   1 // Copyright 2018 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 // Test messages where a closure capture conflicts with itself because it's in
  12 // a loop.
  13
  14 #![feature(nll)]
  15
  16 fn repreated_move(x: String) {
  17     for i in 0..10 {
  18         || x; //~ ERROR
  19     }
  20 }
  21
  22 fn repreated_mut_borrow(mut x: String) {
  23     let mut v = Vec::new();
  24     for i in 0..10 {
  25         v.push(|| x = String::new()); //~ ERROR
  26     }
  27 }
  28
  29 fn repreated_unique_borrow(x: &mut String) {
  30     let mut v = Vec::new();
  31     for i in 0..10 {
  32         v.push(|| *x = String::new()); //~ ERROR
  33     }
  34 }
  35
  36 fn main() {}