tests/ui/uninhabited/uninhabited-matches-feature-gated.stderr

   1 error[E0004]: non-exhaustive patterns: `Err(_)` not covered
   2   --> $DIR/uninhabited-matches-feature-gated.rs:6:19
   3    |
   4 LL |     let _ = match x {
   5    |                   ^ pattern `Err(_)` not covered
   6    |
   7 note: `Result<u32, &Void>` defined here
   8   --> $SRC_DIR/core/src/result.rs:LL:COL
   9   ::: $SRC_DIR/core/src/result.rs:LL:COL
  10    |
  11    = note: not covered
  12    = note: the matched value is of type `Result<u32, &Void>`
  13 help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown
  14    |
  15 LL ~         Ok(n) => n,
  16 LL ~         Err(_) => todo!(),
  17    |
  18
  19 error[E0004]: non-exhaustive patterns: type `&Void` is non-empty
  20   --> $DIR/uninhabited-matches-feature-gated.rs:15:19
  21    |
  22 LL |     let _ = match x {};
  23    |                   ^
  24    |
  25 note: `Void` defined here
  26   --> $DIR/uninhabited-matches-feature-gated.rs:2:6
  27    |
  28 LL | enum Void {}
  29    |      ^^^^
  30    = note: the matched value is of type `&Void`
  31    = note: references are always considered inhabited
  32 help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
  33    |
  34 LL ~     let _ = match x {
  35 LL +         _ => todo!(),
  36 LL ~     };
  37    |
  38
  39 error[E0004]: non-exhaustive patterns: type `(Void,)` is non-empty
  40   --> $DIR/uninhabited-matches-feature-gated.rs:18:19
  41    |
  42 LL |     let _ = match x {};
  43    |                   ^
  44    |
  45    = note: the matched value is of type `(Void,)`
  46 help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
  47    |
  48 LL ~     let _ = match x {
  49 LL +         _ => todo!(),
  50 LL ~     };
  51    |
  52
  53 error[E0004]: non-exhaustive patterns: type `[Void; 1]` is non-empty
  54   --> $DIR/uninhabited-matches-feature-gated.rs:21:19
  55    |
  56 LL |     let _ = match x {};
  57    |                   ^
  58    |
  59    = note: the matched value is of type `[Void; 1]`
  60 help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
  61    |
  62 LL ~     let _ = match x {
  63 LL +         _ => todo!(),
  64 LL ~     };
  65    |
  66
  67 error[E0004]: non-exhaustive patterns: `&[_, ..]` not covered
  68   --> $DIR/uninhabited-matches-feature-gated.rs:24:19
  69    |
  70 LL |     let _ = match x {
  71    |                   ^ pattern `&[_, ..]` not covered
  72    |
  73    = note: the matched value is of type `&[Void]`
  74 help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown
  75    |
  76 LL ~         &[] => (),
  77 LL ~         &[_, ..] => todo!(),
  78    |
  79
  80 error[E0004]: non-exhaustive patterns: `Err(_)` not covered
  81   --> $DIR/uninhabited-matches-feature-gated.rs:32:19
  82    |
  83 LL |     let _ = match x {
  84    |                   ^ pattern `Err(_)` not covered
  85    |
  86 note: `Result<u32, Void>` defined here
  87   --> $SRC_DIR/core/src/result.rs:LL:COL
  88   ::: $SRC_DIR/core/src/result.rs:LL:COL
  89    |
  90    = note: not covered
  91    = note: the matched value is of type `Result<u32, Void>`
  92 help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown
  93    |
  94 LL ~         Ok(x) => x,
  95 LL ~         Err(_) => todo!(),
  96    |
  97
  98 error[E0005]: refutable pattern in local binding
  99   --> $DIR/uninhabited-matches-feature-gated.rs:37:9
 100    |
 101 LL |     let Ok(x) = x;
 102    |         ^^^^^ pattern `Err(_)` not covered
 103    |
 104    = note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant
 105    = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html
 106    = note: the matched value is of type `Result<u32, Void>`
 107 help: you might want to use `let else` to handle the variant that isn't matched
 108    |
 109 LL |     let Ok(x) = x else { todo!() };
 110    |                   ++++++++++++++++
 111
 112 error: aborting due to 7 previous errors
 113
 114 Some errors have detailed explanations: E0004, E0005.
 115 For more information about an error, try `rustc --explain E0004`.