| // Copyright 2016 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 issue #39292. The object vtable was being |
| // incorrectly left with a null pointer. |
| |
| trait Foo<T> { |
| fn print<'a>(&'a self) where T: 'a { println!("foo"); } |
| } |
| |
| impl<'a> Foo<&'a ()> for () { } |
| |
| trait Bar: for<'a> Foo<&'a ()> { } |
| |
| impl Bar for () {} |
| |
| fn main() { |
| (&() as &Bar).print(); // Segfault |
| } |
