src/test/ui/pattern/usefulness/non-exhaustive-match.stderr

   1 error[E0004]: non-exhaustive patterns: `A` not covered
   2   --> $DIR/non-exhaustive-match.rs:7:11
   3    |
   4 LL | enum T { A, B }
   5    | ---------------
   6    | |        |
   7    | |        not covered
   8    | `T` defined here
   9 ...
  10 LL |     match x { T::B => { } }
  11    |           ^ pattern `A` not covered
  12    |
  13    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
  14    = note: the matched value is of type `T`
  15
  16 error[E0004]: non-exhaustive patterns: `false` not covered
  17   --> $DIR/non-exhaustive-match.rs:8:11
  18    |
  19 LL |     match true {
  20    |           ^^^^ pattern `false` not covered
  21    |
  22    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
  23    = note: the matched value is of type `bool`
  24
  25 error[E0004]: non-exhaustive patterns: `Some(_)` not covered
  26   --> $DIR/non-exhaustive-match.rs:11:11
  27    |
  28 LL |     match Some(10) {
  29    |           ^^^^^^^^ pattern `Some(_)` not covered
  30    |
  31   ::: $SRC_DIR/core/src/option.rs:LL:COL
  32    |
  33 LL |     Some(#[stable(feature = "rust1", since = "1.0.0")] T),
  34    |     ---- not covered
  35    |
  36    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
  37    = note: the matched value is of type `std::option::Option<i32>`
  38
  39 error[E0004]: non-exhaustive patterns: `(_, _, i32::MIN..=3_i32)` and `(_, _, 5_i32..=i32::MAX)` not covered
  40   --> $DIR/non-exhaustive-match.rs:14:11
  41    |
  42 LL |     match (2, 3, 4) {
  43    |           ^^^^^^^^^ patterns `(_, _, i32::MIN..=3_i32)` and `(_, _, 5_i32..=i32::MAX)` not covered
  44    |
  45    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
  46    = note: the matched value is of type `(i32, i32, i32)`
  47
  48 error[E0004]: non-exhaustive patterns: `(A, A)` not covered
  49   --> $DIR/non-exhaustive-match.rs:18:11
  50    |
  51 LL |     match (T::A, T::A) {
  52    |           ^^^^^^^^^^^^ pattern `(A, A)` not covered
  53    |
  54    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
  55    = note: the matched value is of type `(T, T)`
  56
  57 error[E0004]: non-exhaustive patterns: `B` not covered
  58   --> $DIR/non-exhaustive-match.rs:22:11
  59    |
  60 LL | enum T { A, B }
  61    | ---------------
  62    | |           |
  63    | |           not covered
  64    | `T` defined here
  65 ...
  66 LL |     match T::A {
  67    |           ^^^^ pattern `B` not covered
  68    |
  69    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
  70    = note: the matched value is of type `T`
  71
  72 error[E0004]: non-exhaustive patterns: `[]` not covered
  73   --> $DIR/non-exhaustive-match.rs:33:11
  74    |
  75 LL |     match *vec {
  76    |           ^^^^ pattern `[]` not covered
  77    |
  78    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
  79    = note: the matched value is of type `[std::option::Option<isize>]`
  80
  81 error[E0004]: non-exhaustive patterns: `[_, _, _, _, ..]` not covered
  82   --> $DIR/non-exhaustive-match.rs:46:11
  83    |
  84 LL |     match *vec {
  85    |           ^^^^ pattern `[_, _, _, _, ..]` not covered
  86    |
  87    = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
  88    = note: the matched value is of type `[f32]`
  89
  90 error: aborting due to 8 previous errors
  91
  92 For more information about this error, try `rustc --explain E0004`.