| // 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. |
| |
| #![feature(generators, generator_trait)] |
| |
| use std::ops::{GeneratorState, Generator}; |
| use std::cell::Cell; |
| |
| fn foo(x: &i32) { |
| // In this case, a reference to `b` escapes the generator, but not |
| // because of a yield. We see that there is no yield in the scope of |
| // `b` and give the more generic error message. |
| let mut a = &3; |
| let mut b = move || { |
| yield(); |
| let b = 5; |
| a = &b; |
| //~^ ERROR `b` does not live long enough |
| }; |
| } |
| |
| fn main() { } |
