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

   1
   2
   3 #![allow(unused)]
   4
   5 #![warn(let_and_return)]
   6
   7 fn test() -> i32 {
   8     let _y = 0; // no warning
   9     let x = 5;
  10     x
  11 }
  12
  13 fn test_inner() -> i32 {
  14     if true {
  15         let x = 5;
  16         x
  17     } else {
  18         0
  19     }
  20 }
  21
  22 fn test_nowarn_1() -> i32 {
  23     let mut x = 5;
  24     x += 1;
  25     x
  26 }
  27
  28 fn test_nowarn_2() -> i32 {
  29     let x = 5;
  30     x + 1
  31 }
  32
  33 fn test_nowarn_3() -> (i32, i32) {
  34     // this should technically warn, but we do not compare complex patterns
  35     let (x, y) = (5, 9);
  36     (x, y)
  37 }
  38
  39 fn test_nowarn_4() -> i32 {
  40     // this should technically warn, but not b/c of let_and_return, but b/c of useless type
  41     let x: i32 = 5;
  42     x
  43 }
  44
  45 fn main() {
  46 }