src/test/ui/nll/issue-52663-trait-object.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 #![feature(box_syntax)]
  12 #![feature(nll)]
  13
  14 trait Foo { fn get(&self); }
  15
  16 impl<A> Foo for A {
  17     fn get(&self) { }
  18 }
  19
  20 fn main() {
  21     let _ = {
  22         let tmp0 = 3;
  23         let tmp1 = &tmp0;
  24         box tmp1 as Box<Foo + '_>
  25     };
  26     //~^^^ ERROR `tmp0` does not live long enough
  27 }