src/test/ui/borrowck/borrowck-move-mut-base-ptr.rs

   1 // Test that attempt to move `&mut` pointer while pointee is borrowed
   2 // yields an error.
   3 //
   4 // Example from compiler/rustc_borrowck/borrowck/README.md
   5
   6
   7
   8 fn foo(t0: &mut isize) {
   9     let p: &isize = &*t0; // Freezes `*t0`
  10     let t1 = t0;        //~ ERROR cannot move out of `t0`
  11     *t1 = 22;
  12     p.use_ref();
  13 }
  14
  15 fn main() {
  16 }
  17
  18 trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { }  }
  19 impl<T> Fake for T { }