| // 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 that NLL analysis propagates lifetimes correctly through |
| // field accesses, Box accesses, etc. |
| |
| #![feature(nll)] |
| |
| fn foo(s: &mut (i32,)) -> i32 { |
| let t = &mut *s; // this borrow should last for the entire function |
| let x = &t.0; |
| *s = (2,); //~ ERROR cannot assign to `*s` |
| *x |
| } |
| |
| fn bar(s: &Box<(i32,)>) -> &'static i32 { |
| // FIXME(#46983): error message should be better |
| &s.0 //~ ERROR explicit lifetime required in the type of `s` [E0621] |
| } |
| |
| fn main() { |
| foo(&mut (0,)); |
| bar(&Box::new((1,))); |
| } |
