src/test/ui/compare-method/proj-outlives-region.rs

   1 // Copyright 2016 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 #![allow(dead_code)]
  12 #![deny(extra_requirement_in_impl)]
  13
  14 // Test that we elaborate `Type: 'region` constraints and infer various important things.
  15
  16 trait Master<'a, T: ?Sized, U> {
  17     fn foo() where T: 'a;
  18 }
  19
  20 // `U::Item: 'a` does not imply that `U: 'a`
  21 impl<'a, U: Iterator> Master<'a, U::Item, U> for () {
  22     fn foo() where U: 'a { } //~ ERROR E0276
  23 }
  24
  25 fn main() {
  26     println!("Hello, world!");
  27 }