| // 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 |
| // compile-pass |
| |
| // Test that we assume that universal types like `T` outlive the |
| // function body. |
| |
| #![allow(warnings)] |
| #![feature(rustc_attrs)] |
| |
| use std::cell::Cell; |
| |
| fn twice<F, T>(value: T, mut f: F) |
| where |
| F: FnMut(Cell<&T>), |
| { |
| f(Cell::new(&value)); |
| f(Cell::new(&value)); |
| } |
| |
| #[rustc_errors] |
| fn generic<T>(value: T) { |
| // No error here: |
| twice(value, |r| invoke(r)); |
| } |
| |
| fn invoke<'a, T>(x: Cell<&'a T>) |
| where |
| T: 'a, |
| { |
| } |
| |
| fn main() {} |
