mirror of https://github.com/rust-lang/rust
52 lines
1.9 KiB
Plaintext
52 lines
1.9 KiB
Plaintext
error[E0308]: mismatched types
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--> $DIR/match-with-different-arm-types-as-stmt-instead-of-expr.rs:9:30
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LL | fn not_all_paths(a: &str) -> u32 {
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| ------------- ^^^ expected `u32`, found `()`
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| |
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| implicitly returns `()` as its body has no tail or `return` expression
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...
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LL | };
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| - help: remove this semicolon to return this value
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error[E0308]: `match` arms have incompatible types
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--> $DIR/match-with-different-arm-types-as-stmt-instead-of-expr.rs:26:14
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LL | / match c {
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LL | | "baz" => Box::new(Baz),
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| | ------------- this is found to be of type `Box<Baz>`
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LL | | _ => Box::new(Bar),
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| | ^^^^^^^^^^^^^ expected `Box<Baz>`, found `Box<Bar>`
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LL | | };
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| |_____- `match` arms have incompatible types
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= note: expected struct `Box<Baz>`
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found struct `Box<Bar>`
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note: you might have meant to return the `match` expression
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--> $DIR/match-with-different-arm-types-as-stmt-instead-of-expr.rs:27:6
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LL | fn wrong(c: &str) -> Box<dyn Foo> {
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| ------------ the `match` arms can conform to this return type
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LL | / match c {
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LL | | "baz" => Box::new(Baz),
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LL | | _ => Box::new(Bar),
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LL | | };
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| | -^ the `match` is a statement because of this semicolon, consider removing it
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| |_____|
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| this could be implicitly returned but it is a statement, not a tail expression
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error[E0308]: mismatched types
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--> $DIR/match-with-different-arm-types-as-stmt-instead-of-expr.rs:23:22
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LL | fn wrong(c: &str) -> Box<dyn Foo> {
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| ----- ^^^^^^^^^^^^ expected `Box<dyn Foo>`, found `()`
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| |
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| implicitly returns `()` as its body has no tail or `return` expression
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= note: expected struct `Box<(dyn Foo + 'static)>`
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found unit type `()`
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error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0308`.
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