rust/src/test/run-pass/trait-where-clause-vs-impl.rs
Brian Anderson 8c93a79e38 rustdoc: Replace no-pretty-expanded with pretty-expanded
Now that features must be declared expanded source often does not compile.
This adds 'pretty-expanded' to a bunch of test cases that still work.
2015-03-23 14:40:26 -07:00

53 lines
1.2 KiB
Rust

// 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() {
}