| // 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 that when there is a conditional (but blanket) impl and a |
| // where clause, we don't get confused in trait resolution. |
| // |
| // Issue #18453. |
| |
| // pretty-expanded FIXME #23616 |
| |
| use std::rc::Rc; |
| |
| pub trait Foo<M> { |
| fn foo(&mut self, msg: M); |
| } |
| |
| pub trait Bar<M> { |
| fn dummy(&self) -> M; |
| } |
| |
| impl<M, F: Bar<M>> Foo<M> for F { |
| fn foo(&mut self, msg: M) { |
| } |
| } |
| |
| pub struct Both<M, F> { |
| inner: Rc<(M, F)>, |
| } |
| |
| impl<M, F: Foo<M>> Clone for Both<M, F> { |
| fn clone(&self) -> Both<M, F> { |
| Both { inner: self.inner.clone() } |
| } |
| } |
| |
| fn repro1<M, F: Foo<M>>(_both: Both<M, F>) { |
| } |
| |
| fn repro2<M, F: Foo<M>>(msg: M, foo: F) { |
| let both = Both { inner: Rc::new((msg, foo)) }; |
| repro1(both.clone()); // <--- This clone causes problem |
| } |
| |
| pub fn main() { |
| } |