src/test/compile-fail/trait-safety-fn-body.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 // Check that an unsafe impl does not imply that unsafe actions are
  12 // legal in the methods.
  13
  14 unsafe trait UnsafeTrait : Sized {
  15     fn foo(self) { }
  16 }
  17
  18 unsafe impl UnsafeTrait for *mut isize {
  19     fn foo(self) {
  20         // Unsafe actions are not made legal by taking place in an unsafe trait:
  21         *self += 1;
  22         //~^ ERROR E0133
  23         //~| NOTE dereference of raw pointer
  24     }
  25 }
  26
  27 fn main() { }