| // Copyright 2012-2014 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 when instantiating trait default methods, typeck handles |
| // lifetime parameters defined on the method bound correctly. |
| |
| |
| pub trait Foo { |
| fn bar<'a, I: Iterator<Item=&'a ()>>(&self, it: I) -> usize { |
| let mut xs = it.filter(|_| true); |
| xs.count() |
| } |
| } |
| |
| pub struct Baz; |
| |
| impl Foo for Baz { |
| // When instantiating `Foo::bar` for `Baz` here, typeck used to |
| // ICE due to the lifetime parameter of `bar`. |
| } |
| |
| fn main() { |
| let x = Baz; |
| let y = vec!((), (), ()); |
| assert_eq!(x.bar(y.iter()), 3); |
| } |
