tests/ui/block_in_if_condition_closure.rs

   1 #![warn(clippy::block_in_if_condition_expr)]
   2 #![warn(clippy::block_in_if_condition_stmt)]
   3 #![allow(unused, clippy::let_and_return)]
   4
   5 fn predicate<F: FnOnce(T) -> bool, T>(pfn: F, val: T) -> bool {
   6     pfn(val)
   7 }
   8
   9 fn pred_test() {
  10     let v = 3;
  11     let sky = "blue";
  12     // This is a sneaky case, where the block isn't directly in the condition,
  13     // but is actually nside a closure that the condition is using.
  14     // The same principle applies -- add some extra expressions to make sure
  15     // linter isn't confused by them.
  16     if v == 3
  17         && sky == "blue"
  18         && predicate(
  19             |x| {
  20                 let target = 3;
  21                 x == target
  22             },
  23             v,
  24         )
  25     {}
  26
  27     if predicate(
  28         |x| {
  29             let target = 3;
  30             x == target
  31         },
  32         v,
  33     ) {}
  34 }
  35
  36 fn closure_without_block() {
  37     if predicate(|x| x == 3, 6) {}
  38 }
  39
  40 fn macro_in_closure() {
  41     let option = Some(true);
  42
  43     if option.unwrap_or_else(|| unimplemented!()) {
  44         unimplemented!()
  45     }
  46 }
  47
  48 fn main() {}