| // 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, initial version. This example allowed |
| // arbitrary trait bounds to be synthesized. |
| |
| // Trait that you want all types to implement. |
| use std::marker::{Sync as Trait}; |
| |
| pub trait Magic { |
| type X: Trait; |
| } |
| impl<T: Magic> Magic for T { |
| type X = Self; |
| } |
| |
| fn check<T: Trait>() {} |
| |
| fn wizard<T: Magic>() { check::<<T as Magic>::X>(); } |
| |
| fn main() { |
| wizard::<*mut ()>(); //~ ERROR E0275 |
| // check::<*mut ()>(); |
| } |
