mirror of https://github.com/rust-lang/rust
38 lines
1.6 KiB
Plaintext
38 lines
1.6 KiB
Plaintext
error[E0308]: `match` arms have incompatible types
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--> $DIR/issue-17728.rs:108:14
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LL | / match to_parse {
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LL | | "w" | "west" => RoomDirection::West,
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LL | | "e" | "east" => RoomDirection::East,
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LL | | "n" | "north" => RoomDirection::North,
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... |
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LL | | "down" => RoomDirection::Down,
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| | ------------------- this and all prior arms are found to be of type `RoomDirection`
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LL | | _ => None
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| | ^^^^ expected `RoomDirection`, found `Option<_>`
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LL | | }
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| |_____- `match` arms have incompatible types
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= note: expected enum `RoomDirection`
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found enum `Option<_>`
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error: lifetime may not live long enough
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--> $DIR/issue-17728.rs:15:28
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LL | fn attemptTraverse(&self, room: &Room, directionStr: &str) -> Result<&Room, &str> {
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| - - let's call the lifetime of this reference `'1`
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| |
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| let's call the lifetime of this reference `'2`
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...
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LL | Some(entry) => Ok(entry),
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| ^^^^^^^^^ method was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`
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help: consider introducing a named lifetime parameter
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LL | fn attemptTraverse<'a>(&self, room: &'a Room, directionStr: &str) -> Result<&'a Room, &'a str> {
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| ++++ ++ ++ ++
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0308`.
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