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

   1 //@no-rustfix: overlapping suggestions
   2 #![deny(clippy::match_bool)]
   3
   4 fn match_bool() {
   5     let test: bool = true;
   6
   7     match test {
   8         //~^ ERROR: you seem to be trying to match on a boolean expression
   9         true => 0,
  10         false => 42,
  11     };
  12
  13     let option = 1;
  14     match option == 1 {
  15         //~^ ERROR: you seem to be trying to match on a boolean expression
  16         true => 1,
  17         false => 0,
  18     };
  19
  20     match test {
  21         //~^ ERROR: you seem to be trying to match on a boolean expression
  22         true => (),
  23         false => {
  24             println!("Noooo!");
  25         },
  26     };
  27
  28     match test {
  29         //~^ ERROR: you seem to be trying to match on a boolean expression
  30         false => {
  31             println!("Noooo!");
  32         },
  33         _ => (),
  34     };
  35
  36     match test && test {
  37         //~^ ERROR: this boolean expression can be simplified
  38         //~| NOTE: `-D clippy::nonminimal-bool` implied by `-D warnings`
  39         //~| ERROR: you seem to be trying to match on a boolean expression
  40         //~| ERROR: equal expressions as operands to `&&`
  41         //~| NOTE: `#[deny(clippy::eq_op)]` on by default
  42         false => {
  43             println!("Noooo!");
  44         },
  45         _ => (),
  46     };
  47
  48     match test {
  49         //~^ ERROR: you seem to be trying to match on a boolean expression
  50         false => {
  51             println!("Noooo!");
  52         },
  53         true => {
  54             println!("Yes!");
  55         },
  56     };
  57
  58     // Not linted
  59     match option {
  60         1..=10 => 1,
  61         11..=20 => 2,
  62         _ => 3,
  63     };
  64
  65     // Don't lint
  66     let _ = match test {
  67         #[cfg(feature = "foo")]
  68         true if option == 5 => 10,
  69         true => 0,
  70         false => 1,
  71     };
  72 }
  73
  74 fn main() {}