src/test/compile-fail/regions-proc-bound-capture.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 fn borrowed_proc<'a>(x: &'a isize) -> Box<FnMut()->(isize) + 'a> {
  12     // This is legal, because the region bound on `proc`
  13     // states that it captures `x`.
  14     Box::new(move|| { *x })
  15 }
  16
  17 fn static_proc(x: &isize) -> Box<FnMut()->(isize) + 'static> {
  18     // This is illegal, because the region bound on `proc` is 'static.
  19     Box::new(move|| { *x }) //~ ERROR cannot infer an appropriate lifetime
  20 }
  21
  22 fn main() { }