mirror of https://github.com/rust-lang/rust
25 lines
1.0 KiB
Plaintext
25 lines
1.0 KiB
Plaintext
error[E0271]: type mismatch resolving `<impl Bar as Foo>::Item == i32`
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--> $DIR/impl-trait-return-missing-constraint.rs:25:13
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LL | fn bar() -> impl Bar {
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| -------- the expected opaque type
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...
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LL | fn baz() -> impl Bar<Item = i32> {
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| ^^^^^^^^^^^^^^^^^^^^ expected associated type, found `i32`
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LL |
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LL | bar()
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| ----- return type was inferred to be `impl Bar` here
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= note: expected associated type `<impl Bar as Foo>::Item`
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found type `i32`
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= help: consider constraining the associated type `<impl Bar as Foo>::Item` to `i32` or calling a method that returns `<impl Bar as Foo>::Item`
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= note: for more information, visit https://doc.rust-lang.org/book/ch19-03-advanced-traits.html
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help: consider constraining the associated type `<impl Bar as Foo>::Item` to `i32`
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LL | fn bar() -> impl Bar<Item = i32> {
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| ++++++++++++
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0271`.
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