26 lines
812 B
Rust
26 lines
812 B
Rust
|
// 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.
|
||
|
|
|
||
|
|
// Regression test for #29859, supertrait version. This example
|
||
|
|
// allowed arbitrary trait bounds to be synthesized.
|
||
|
|
|
||
|
|
trait Magic: Copy {}
|
||
|
|
impl<T: Magic> Magic for T {}
|
||
|
|
|
||
|
|
fn copy<T: Magic>(x: T) -> (T, T) { (x, x) }
|
||
|
|
|
||
|
|
#[derive(Debug)]
|
||
|
|
struct NoClone;
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
let (a, b) = copy(NoClone); //~ ERROR E0275
|
||
|
|
println!("{:?} {:?}", a, b);
|
||
|
|
}
|