rust-clippy/tests/ui/needless_match.stderr

error: this match expression is unnecessary
  --> $DIR/needless_match.rs:15:18
   |
LL |       let _: i32 = match x {
   |  __________________^
LL | |         0 => 0,
LL | |         1 => 1,
LL | |         2 => 2,
LL | |         _ => x,
LL | |     };
   | |_____^ help: replace it with: `x`
   |
   = note: `-D clippy::needless-match` implied by `-D warnings`

error: this match expression is unnecessary
  --> $DIR/needless_match.rs:24:21
   |
LL |       let _: Choice = match se {
   |  _____________________^
LL | |         Choice::A => Choice::A,
LL | |         Choice::B => Choice::B,
LL | |         Choice::C => Choice::C,
LL | |         Choice::D => Choice::D,
LL | |     };
   | |_____^ help: replace it with: `se`

error: this match expression is unnecessary
  --> $DIR/needless_match.rs:46:26
   |
LL |       let _: Option<i32> = match x {
   |  __________________________^
LL | |         Some(a) => Some(a),
LL | |         None => None,
LL | |     };
   | |_____^ help: replace it with: `x`

error: this match expression is unnecessary
  --> $DIR/needless_match.rs:62:31
   |
LL |       let _: Result<i32, i32> = match Ok(1) {
   |  _______________________________^
LL | |         Ok(a) => Ok(a),
LL | |         Err(err) => Err(err),
LL | |     };
   | |_____^ help: replace it with: `Ok(1)`

error: this match expression is unnecessary
  --> $DIR/needless_match.rs:66:31
   |
LL |       let _: Result<i32, i32> = match func_ret_err(0_i32) {
   |  _______________________________^
LL | |         Err(err) => Err(err),
LL | |         Ok(a) => Ok(a),
LL | |     };
   | |_____^ help: replace it with: `func_ret_err(0_i32)`

error: this if-let expression is unnecessary
  --> $DIR/needless_match.rs:73:5
   |
LL |     if let Some(a) = Some(1) { Some(a) } else { None }
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `Some(1)`

error: this if-let expression is unnecessary
  --> $DIR/needless_match.rs:77:30
   |
LL |     let _: Result<(), i32> = if let Err(e) = x { Err(e) } else { x };
   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `x`

error: this if-let expression is unnecessary
  --> $DIR/needless_match.rs:78:30
   |
LL |     let _: Result<(), i32> = if let Ok(val) = x { Ok(val) } else { x };
   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `x`

error: this if-let expression is unnecessary
  --> $DIR/needless_match.rs:84:21
   |
LL |       let _: Choice = if let Choice::A = x {
   |  _____________________^
LL | |         Choice::A
LL | |     } else if let Choice::B = x {
LL | |         Choice::B
...  |
LL | |         x
LL | |     };
   | |_____^ help: replace it with: `x`

error: aborting due to 9 previous errors