1 // Copyright 2018 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.
12 #![feature(existential_type)]
18 pub existential type Boo: ::std::fmt::Debug;
24 // don't actually know the type here
27 let _: &str = bomp(); //~ ERROR mismatched types
30 fn bomp() -> boo::Boo {
31 "" //~ ERROR mismatched types