// Copyright 2012 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // Along with the other tests in this series, illustrates the // "projection gap": in this test, we know that `T: 'x`, and that is // enough to conclude that `T::Foo: 'x`. #![feature(rustc_attrs)] #![allow(dead_code)] #![allow(unused_variables)] trait Trait1<'x> { type Foo; } // calling this fn should trigger a check that the type argument // supplied is well-formed. fn wf() { } fn func<'x, T:Trait1<'x>>(t: &'x T) { wf::<&'x T::Foo>(); } #[rustc_error] fn main() { } //~ ERROR compilation successful