src/tools/clippy/tests/ui/eta.stderr

   1 error: redundant closure
   2   --> $DIR/eta.rs:32:27
   3    |
   4 LL |     let a = Some(1u8).map(|a| foo(a));
   5    |                           ^^^^^^^^^^ help: replace the closure with the function itself: `foo`
   6    |
   7    = note: `-D clippy::redundant-closure` implied by `-D warnings`
   8
   9 error: redundant closure
  10   --> $DIR/eta.rs:33:10
  11    |
  12 LL |     meta(|a| foo(a));
  13    |          ^^^^^^^^^^ help: replace the closure with the function itself: `foo`
  14
  15 error: redundant closure
  16   --> $DIR/eta.rs:37:40
  17    |
  18 LL |     let _: Option<Vec<u8>> = true.then(|| vec![]); // special case vec!
  19    |                                        ^^^^^^^^^ help: replace the closure with `Vec::new`: `std::vec::Vec::new`
  20
  21 error: this expression borrows a reference (`&u8`) that is immediately dereferenced by the compiler
  22   --> $DIR/eta.rs:39:21
  23    |
  24 LL |     all(&[1, 2, 3], &&2, |x, y| below(x, y)); //is adjusted
  25    |                     ^^^ help: change this to: `&2`
  26    |
  27    = note: `-D clippy::needless-borrow` implied by `-D warnings`
  28
  29 error: redundant closure
  30   --> $DIR/eta.rs:46:27
  31    |
  32 LL |     let e = Some(1u8).map(|a| generic(a));
  33    |                           ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `generic`
  34
  35 error: redundant closure
  36   --> $DIR/eta.rs:92:51
  37    |
  38 LL |     let e = Some(TestStruct { some_ref: &i }).map(|a| a.foo());
  39    |                                                   ^^^^^^^^^^^ help: replace the closure with the method itself: `TestStruct::foo`
  40    |
  41    = note: `-D clippy::redundant-closure-for-method-calls` implied by `-D warnings`
  42
  43 error: redundant closure
  44   --> $DIR/eta.rs:94:51
  45    |
  46 LL |     let e = Some(TestStruct { some_ref: &i }).map(|a| a.trait_foo());
  47    |                                                   ^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `TestTrait::trait_foo`
  48
  49 error: redundant closure
  50   --> $DIR/eta.rs:97:42
  51    |
  52 LL |     let e = Some(&mut vec![1, 2, 3]).map(|v| v.clear());
  53    |                                          ^^^^^^^^^^^^^ help: replace the closure with the method itself: `std::vec::Vec::clear`
  54
  55 error: redundant closure
  56   --> $DIR/eta.rs:102:29
  57    |
  58 LL |     let e = Some("str").map(|s| s.to_string());
  59    |                             ^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `std::string::ToString::to_string`
  60
  61 error: redundant closure
  62   --> $DIR/eta.rs:104:27
  63    |
  64 LL |     let e = Some('a').map(|s| s.to_uppercase());
  65    |                           ^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `char::to_uppercase`
  66
  67 error: redundant closure
  68   --> $DIR/eta.rs:107:65
  69    |
  70 LL |     let e: std::vec::Vec<char> = vec!['a', 'b', 'c'].iter().map(|c| c.to_ascii_uppercase()).collect();
  71    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `char::to_ascii_uppercase`
  72
  73 error: redundant closure
  74   --> $DIR/eta.rs:190:27
  75    |
  76 LL |     let a = Some(1u8).map(|a| foo_ptr(a));
  77    |                           ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `foo_ptr`
  78
  79 error: redundant closure
  80   --> $DIR/eta.rs:195:27
  81    |
  82 LL |     let a = Some(1u8).map(|a| closure(a));
  83    |                           ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `closure`
  84
  85 error: redundant closure
  86   --> $DIR/eta.rs:227:28
  87    |
  88 LL |     x.into_iter().for_each(|x| add_to_res(x));
  89    |                            ^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `&mut add_to_res`
  90
  91 error: redundant closure
  92   --> $DIR/eta.rs:228:28
  93    |
  94 LL |     y.into_iter().for_each(|x| add_to_res(x));
  95    |                            ^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `&mut add_to_res`
  96
  97 error: redundant closure
  98   --> $DIR/eta.rs:229:28
  99    |
 100 LL |     z.into_iter().for_each(|x| add_to_res(x));
 101    |                            ^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `add_to_res`
 102
 103 error: redundant closure
 104   --> $DIR/eta.rs:236:21
 105    |
 106 LL |         Some(1).map(|n| closure(n));
 107    |                     ^^^^^^^^^^^^^^ help: replace the closure with the function itself: `&mut closure`
 108
 109 error: aborting due to 17 previous errors
 110