| error: unreachable pattern |
| --> $DIR/empty-match-check-notes.rs:17:9 |
| | |
| LL | _ => {} |
| | ^ |
| | |
| note: the lint level is defined here |
| --> $DIR/empty-match-check-notes.rs:7:9 |
| | |
| LL | #![deny(unreachable_patterns)] |
| | ^^^^^^^^^^^^^^^^^^^^ |
| |
| error: unreachable pattern |
| --> $DIR/empty-match-check-notes.rs:20:9 |
| | |
| LL | _ if false => {} |
| | ^ |
| |
| error: unreachable pattern |
| --> $DIR/empty-match-check-notes.rs:27:9 |
| | |
| LL | _ => {} |
| | ^ |
| |
| error: unreachable pattern |
| --> $DIR/empty-match-check-notes.rs:30:9 |
| | |
| LL | _ if false => {} |
| | ^ |
| |
| error[E0005]: refutable pattern in local binding |
| --> $DIR/empty-match-check-notes.rs:35:9 |
| | |
| LL | let None = x; |
| | ^^^^ pattern `Some(_)` not covered |
| | |
| = note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant |
| = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html |
| = note: pattern `Some(_)` is currently uninhabited, but this variant contains private fields which may become inhabited in the future |
| = note: the matched value is of type `Option<SecretlyUninhabitedForeignStruct>` |
| help: you might want to use `if let` to ignore the variant that isn't matched |
| | |
| LL | if let None = x { todo!() }; |
| | ++ +++++++++++ |
| |
| error[E0004]: non-exhaustive patterns: `0_u8..=u8::MAX` not covered |
| --> $DIR/empty-match-check-notes.rs:45:11 |
| | |
| LL | match 0u8 { |
| | ^^^ pattern `0_u8..=u8::MAX` not covered |
| | |
| = note: the matched value is of type `u8` |
| = note: match arms with guards don't count towards exhaustivity |
| help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown |
| | |
| LL ~ _ if false => {}, |
| LL + 0_u8..=u8::MAX => todo!() |
| | |
| |
| error: aborting due to 6 previous errors |
| |
| Some errors have detailed explanations: E0004, E0005. |
| For more information about an error, try `rustc --explain E0004`. |