rust/src/test/compile-fail/traits-inductive-overflow-supertrait-oibit.rs
2016-02-09 11:52:39 -05:00

29 lines
884 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.
// OIBIT-based version of #29859, supertrait version. Test that using
// a simple OIBIT `..` impl alone still doesn't allow arbitrary bounds
// to be synthesized.
#![feature(optin_builtin_traits)]
trait Magic: Copy {}
impl Magic for .. {}
fn copy<T: Magic>(x: T) -> (T, T) { (x, x) }
#[derive(Debug)]
struct NoClone;
fn main() {
let (a, b) = copy(NoClone); //~ ERROR E0277
println!("{:?} {:?}", a, b);
}