| // Copyright 2018 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(nll)] |
| |
| struct X(usize); |
| |
| impl X { |
| fn zap(&self) { |
| //~^ HELP |
| //~| SUGGESTION &mut self |
| self.0 = 32; |
| //~^ ERROR |
| } |
| } |
| |
| fn main() { |
| let ref foo = 16; |
| //~^ HELP |
| //~| SUGGESTION ref mut foo |
| *foo = 32; |
| //~^ ERROR |
| if let Some(ref bar) = Some(16) { |
| //~^ HELP |
| //~| SUGGESTION ref mut bar |
| *bar = 32; |
| //~^ ERROR |
| } |
| match 16 { |
| ref quo => { *quo = 32; }, |
| //~^ ERROR |
| //~| HELP |
| //~| SUGGESTION ref mut quo |
| } |
| } |
