| // Copyright 2013 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // Test that shadowed lifetimes generate an error. |
| |
| struct Foo<'a>(&'a isize); |
| |
| impl<'a> Foo<'a> { |
| fn shadow_in_method<'a>(&'a self) -> &'a isize { |
| //~^ ERROR lifetime name `'a` shadows a lifetime name that is already in scope |
| self.0 |
| } |
| |
| fn shadow_in_type<'b>(&'b self) -> &'b isize { |
| let x: for<'b> fn(&'b isize) = panic!(); |
| //~^ ERROR lifetime name `'b` shadows a lifetime name that is already in scope |
| self.0 |
| } |
| |
| fn not_shadow_in_item<'b>(&'b self) { |
| struct Bar<'a, 'b>(&'a isize, &'b isize); // not a shadow, separate item |
| fn foo<'a, 'b>(x: &'a isize, y: &'b isize) { } // same |
| } |
| } |
| |
| fn main() { |
| } |