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|
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: `_` not covered
--> $DIR/empty-match-check-notes.rs:45:11
|
LL | match 0u8 {
| ^^^ pattern `_` 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 + _ => 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`.
|
