| // Copyright 2017 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. |
| |
| // Test an interesting corner case that ought to be legal (though the |
| // current code actually gets it wrong, see below): a fn that takes |
| // two arguments that are references with the same lifetime is in fact |
| // equivalent to a fn that takes two references with distinct |
| // lifetimes. This is true because the two functions can call one |
| // another -- effectively, the single lifetime `'a` is just inferred |
| // to be the intersection of the two distinct lifetimes. |
| // |
| // compile-pass |
| // compile-flags:-Zno-leak-check |
| |
| #![feature(nll)] |
| |
| use std::cell::Cell; |
| |
| fn make_cell_aa() -> Cell<for<'a> fn(&'a u32, &'a u32)> { |
| panic!() |
| } |
| |
| fn aa_eq_ab() { |
| let a: Cell<for<'a, 'b> fn(&'a u32, &'b u32)> = make_cell_aa(); |
| drop(a); |
| } |
| |
| fn main() { } |
