src/test/compile-fail/unique-vec-res.rs

   1 // Copyright 2012 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 use std::cell::Cell;
  12
  13 #[derive(Debug)]
  14 struct r<'a> {
  15   i: &'a Cell<isize>,
  16 }
  17
  18 impl<'a> Drop for r<'a> {
  19     fn drop(&mut self) {
  20         unsafe {
  21             self.i.set(self.i.get() + 1);
  22         }
  23     }
  24 }
  25
  26 fn f<T>(__isize: Vec<T> , _j: Vec<T> ) {
  27 }
  28
  29 fn clone<T: Clone>(t: &T) -> T { t.clone() }
  30
  31 fn main() {
  32     let i1 = &Cell::new(0);
  33     let i2 = &Cell::new(1);
  34     // FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
  35     let r1 = vec!(Box::new(r { i: i1 }));
  36     let r2 = vec!(Box::new(r { i: i2 }));
  37     f(clone(&r1), clone(&r2));
  38     //~^ ERROR the trait `core::clone::Clone` is not implemented for the type
  39     //~^^ ERROR the trait `core::clone::Clone` is not implemented for the type
  40     println!("{:?}", (r2, i1.get()));
  41     println!("{:?}", (r1, i2.get()));
  42 }