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// Copyright 2014 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.
#![deny(unused_parens)]
#[derive(Eq, PartialEq)]
struct X { y: bool }
impl X {
fn foo(&self) -> bool { self.y }
}
fn foo() -> int {
return (1i); //~ ERROR unnecessary parentheses around `return` value
}
fn bar() -> X {
return (X { y: true }); //~ ERROR unnecessary parentheses around `return` value
}
fn main() {
foo();
bar();
if (true) {} //~ ERROR unnecessary parentheses around `if` condition
while (true) {} //~ ERROR unnecessary parentheses around `while` condition
match (true) { //~ ERROR unnecessary parentheses around `match` head expression
_ => {}
}
if let 1i = (1i) {} //~ ERROR unnecessary parentheses around `if let` head expression
while let 1i = (2i) {} //~ ERROR unnecessary parentheses around `while let` head expression
let v = X { y: false };
// struct lits needs parens, so these shouldn't warn.
if (v == X { y: true }) {}
if (X { y: true } == v) {}
if (X { y: false }.y) {}
while (X { y: false }.foo()) {}
while (true | X { y: false }.y) {}
match (X { y: false }) {
_ => {}
}
let mut _a = (0i); //~ ERROR unnecessary parentheses around assigned value
_a = (0i); //~ ERROR unnecessary parentheses around assigned value
_a += (1i); //~ ERROR unnecessary parentheses around assigned value
}
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