| // 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 |
| |
| // Test that we assume that universal types like `T` outlive the |
| // function body. |
| |
| #![allow(warnings)] |
| |
| use std::cell::Cell; |
| |
| // No errors here, because `'a` is local to the body. |
| fn region_within_body<T>(t: T) { |
| let some_int = 22; |
| let cell = Cell::new(&some_int); |
| outlives(cell, t) |
| } |
| |
| // Error here, because T: 'a is not satisfied. |
| fn region_static<'a, T>(cell: Cell<&'a usize>, t: T) { |
| outlives(cell, t) |
| //~^ ERROR the parameter type `T` may not live long enough |
| } |
| |
| fn outlives<'a, T>(x: Cell<&'a usize>, y: T) |
| where |
| T: 'a, |
| { |
| } |
| |
| fn main() {} |
