1 #![deny(unused_parens)]
3 #[derive(Eq, PartialEq)]
6 fn foo(&self, conjunct: bool) -> bool { self.y && conjunct }
10 return (1); //~ ERROR unnecessary parentheses around `return` value
12 fn bar(y: bool) -> X {
13 return (X { y }); //~ ERROR unnecessary parentheses around `return` value
16 fn unused_parens_around_return_type() -> (u32) { //~ ERROR unnecessary parentheses around type
24 fn passes_unused_parens_lint() -> &'static (dyn Trait) {
36 bar((true)); //~ ERROR unnecessary parentheses around function argument
38 if (true) {} //~ ERROR unnecessary parentheses around `if` condition
39 while (true) {} //~ ERROR unnecessary parentheses around `while` condition
40 //~^ WARN denote infinite loops with
41 match (true) { //~ ERROR unnecessary parentheses around `match` head expression
44 if let 1 = (1) {} //~ ERROR unnecessary parentheses around `let` head expression
45 while let 1 = (2) {} //~ ERROR unnecessary parentheses around `let` head expression
46 let v = X { y: false };
47 // struct lits needs parens, so these shouldn't warn.
48 if (v == X { y: true }) {}
49 if (X { y: true } == v) {}
50 if (X { y: false }.y) {}
52 while (X { y: false }.foo(true)) {}
53 while (true | X { y: false }.y) {}
55 match (X { y: false }) {
59 X { y: false }.foo((true)); //~ ERROR unnecessary parentheses around method argument
61 let mut _a = (0); //~ ERROR unnecessary parentheses around assigned value
62 _a = (0); //~ ERROR unnecessary parentheses around assigned value
63 _a += (1); //~ ERROR unnecessary parentheses around assigned value