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Simplify and type_known_to_meet_builtin_bound and make it more correct when

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associated types are involved.
This commit is contained in:
Ariel Ben-Yehuda 2015-06-09 21:33:28 +03:00 • committed by Ariel Ben-Yehuda
parent 7a13b93b00
commit 56d765d0eb
3 changed files with 62 additions and 59 deletions
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24
src/test/compile-fail/issue-25700.rs Normal file
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// Copyright 2015 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.
struct S<T: 'static>(Option<&'static T>);
trait Tr { type Out; }
impl<T> Tr for T { type Out = T; }
impl<T: 'static> Copy for S<T> where S<T>: Tr<Out=T> {}
impl<T: 'static> Clone for S<T> where S<T>: Tr<Out=T> {
fn clone(&self) -> Self { *self }
}
fn main() {
let t = S::<()>(None);
drop(t);
drop(t); //~ ERROR use of moved value
}

22
src/test/run-pass/issue-25700-1.rs Normal file
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// Copyright 2015 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.
struct S<T: 'static>(Option<&'static T>);
trait Tr { type Out; }
impl<T> Tr for T { type Out = T; }
impl<T: 'static> Copy for S<T> where S<T>: Tr<Out=T> {}
impl<T: 'static> Clone for S<T> where S<T>: Tr<Out=T> {
fn clone(&self) -> Self { *self }
}
fn main() {
S::<()>(None);
}