| // 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. |
| |
| // compile-flags:-Zborrowck=mir -Zverbose |
| |
| #![allow(warnings)] |
| |
| use std::fmt::Debug; |
| |
| fn no_region<'a, T>(x: Box<T>) -> impl Debug + 'a |
| //~^ ERROR the parameter type `T` may not live long enough [E0309] |
| where |
| T: Debug, |
| { |
| x |
| } |
| |
| fn correct_region<'a, T>(x: Box<T>) -> impl Debug + 'a |
| where |
| T: 'a + Debug, |
| { |
| x |
| } |
| |
| fn wrong_region<'a, 'b, T>(x: Box<T>) -> impl Debug + 'a |
| //~^ ERROR the parameter type `T` may not live long enough [E0309] |
| where |
| T: 'b + Debug, |
| { |
| x |
| } |
| |
| fn outlives_region<'a, 'b, T>(x: Box<T>) -> impl Debug + 'a |
| where |
| T: 'b + Debug, |
| 'b: 'a, |
| { |
| x |
| } |
| |
| fn main() {} |