src/test/ui/borrowck/issue-81365-3.rs

   1 use std::ops::Deref;
   2
   3 struct DerefTarget {
   4     target_field: bool,
   5 }
   6 struct Container {
   7     target: DerefTarget,
   8     container_field: bool,
   9 }
  10
  11 impl Deref for Container {
  12     type Target = DerefTarget;
  13     fn deref(&self) -> &Self::Target {
  14         &self.target
  15     }
  16 }
  17
  18 struct Outer {
  19     container: Container,
  20 }
  21
  22 impl Deref for Outer {
  23     type Target = Container;
  24     fn deref(&self) -> &Self::Target {
  25         &self.container
  26     }
  27 }
  28
  29 impl Outer {
  30     fn bad_borrow(&mut self) {
  31         let first = &self.target_field;
  32         self.container.container_field = true; //~ ERROR E0506
  33         first;
  34     }
  35 }
  36
  37 fn main() {}