1 // Copyright 2015 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.
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.
11 // Test that we are imposing the requirement that every associated
12 // type of a bound that appears in the where clause on a struct must
13 // outlive the location in which the type appears, even when the
14 // associted type is in a supertype. Issue #22246.
18 use std::mem::transmute;
21 ///////////////////////////////////////////////////////////////////////////
29 pub trait TheSubTrait : TheTrait {
32 pub struct TheType<'b> {
36 impl<'b> TheTrait for TheType<'b> {
37 type TheAssocType = &'b ();
40 impl<'b> TheSubTrait for TheType<'b> {
43 ///////////////////////////////////////////////////////////////////////////
45 pub struct WithAssoc<T:TheSubTrait> {
49 fn with_assoc<'a,'b>() {
50 // For this type to be valid, the rules require that all
51 // associated types of traits that appear in `WithAssoc` must
52 // outlive 'a. In this case, that means TheType<'b>::TheAssocType,
53 // which is &'b (), must outlive 'a.
55 let _: &'a WithAssoc<TheType<'b>> = loop { }; //~ ERROR cannot infer