src/tools/clippy/tests/ui/double_parens.rs

   1
   2
   3
   4 #![warn(double_parens)]
   5 #![allow(dead_code)]
   6
   7 fn dummy_fn<T>(_: T) {}
   8
   9 struct DummyStruct;
  10
  11 impl DummyStruct {
  12     fn dummy_method<T>(self, _: T) {}
  13 }
  14
  15 fn simple_double_parens() -> i32 {
  16     ((0))
  17 }
  18
  19 fn fn_double_parens() {
  20     dummy_fn((0));
  21 }
  22
  23 fn method_double_parens(x: DummyStruct) {
  24     x.dummy_method((0));
  25 }
  26
  27 fn tuple_double_parens() -> (i32, i32) {
  28     ((1, 2))
  29 }
  30
  31 fn unit_double_parens() {
  32     (())
  33 }
  34
  35 fn fn_tuple_ok() {
  36     dummy_fn((1, 2));
  37 }
  38
  39 fn method_tuple_ok(x: DummyStruct) {
  40     x.dummy_method((1, 2));
  41 }
  42
  43 fn fn_unit_ok() {
  44     dummy_fn(());
  45 }
  46
  47 fn method_unit_ok(x: DummyStruct) {
  48     x.dummy_method(());
  49 }
  50
  51 fn main() {}