| // 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. |
| |
| // edition:2018 |
| |
| // Enabling `ireffutable_let_patterns` isn't necessary for what this tests, but it makes coming up |
| // with examples easier. |
| #![feature(irrefutable_let_patterns)] |
| |
| #[allow(irrefutable_let_patterns)] |
| fn main() { |
| use std::ops::Range; |
| |
| if let Range { start: _, end: _ } = true..true && false { } |
| //~^ ERROR ambiguous use of `&&` |
| |
| if let Range { start: _, end: _ } = true..true || false { } |
| //~^ ERROR ambiguous use of `||` |
| |
| while let Range { start: _, end: _ } = true..true && false { } |
| //~^ ERROR ambiguous use of `&&` |
| |
| while let Range { start: _, end: _ } = true..true || false { } |
| //~^ ERROR ambiguous use of `||` |
| |
| if let true = false && false { } |
| //~^ ERROR ambiguous use of `&&` |
| |
| while let true = (1 == 2) && false { } |
| //~^ ERROR ambiguous use of `&&` |
| |
| // The following cases are not an error as parenthesis are used to |
| // clarify intent: |
| |
| if let Range { start: _, end: _ } = true..(true || false) { } |
| |
| if let Range { start: _, end: _ } = true..(true && false) { } |
| |
| while let Range { start: _, end: _ } = true..(true || false) { } |
| |
| while let Range { start: _, end: _ } = true..(true && false) { } |
| } |
