1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // Check that we correctly prevent users from making trait objects
12 // form traits that make use of `Self` in an argument or return position.
18 trait Baz : Bar<Self> {
21 fn make_bar<T:Bar<u32>>(t: &T) -> &Bar<u32> {
25 fn make_baz<T:Baz>(t: &T) -> &Baz {
27 //~| NOTE the trait cannot use `Self` as a type parameter in the supertraits or where-clauses
28 //~| NOTE the trait `Baz` cannot be made into an object