| // Copyright 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 interaction between unboxed closure sugar and region |
| // parameters (should be exactly as if angle brackets were used |
| // and regions omitted). |
| |
| #![feature(unboxed_closures)] |
| #![allow(dead_code)] |
| |
| use std::marker; |
| |
| trait Foo<'a,T> { |
| type Output; |
| fn dummy(&'a self) -> &'a (T,Self::Output); |
| } |
| |
| trait Eq<X: ?Sized> { fn is_of_eq_type(&self, x: &X) -> bool { true } } |
| impl<X: ?Sized> Eq<X> for X { } |
| fn eq<A: ?Sized,B: ?Sized +Eq<A>>() { } |
| |
| fn same_type<A,B:Eq<A>>(a: A, b: B) { } |
| |
| fn test<'a,'b>() { |
| // Parens are equivalent to omitting default in angle. |
| eq::< Foo<(isize,),Output=()>, Foo(isize) >(); |
| |
| // Here we specify 'static explicitly in angle-bracket version. |
| // Parenthesized winds up getting inferred. |
| eq::< Foo<'static, (isize,),Output=()>, Foo(isize) >(); |
| } |
| |
| fn test2(x: &Foo<(isize,),Output=()>, y: &Foo(isize)) { |
| //~^ ERROR wrong number of lifetime arguments: expected 1, found 0 |
| // Here, the omitted lifetimes are expanded to distinct things. |
| same_type(x, y) |
| } |
| |
| fn main() { } |