mirror of https://github.com/rust-lang/rust
55 lines
2.3 KiB
Plaintext
55 lines
2.3 KiB
Plaintext
error: unconstrained opaque type
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--> $DIR/recursive-type-alias-impl-trait-declaration-too-subtle.rs:4:16
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LL | type Foo = impl PartialEq<(Foo, i32)>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `Foo` must be used in combination with a concrete type within the same module
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error[E0053]: method `eq` has an incompatible type for trait
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--> $DIR/recursive-type-alias-impl-trait-declaration-too-subtle.rs:10:30
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LL | type Foo = impl PartialEq<(Foo, i32)>;
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| -------------------------- the found opaque type
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...
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LL | fn eq(&self, _other: &(Foo, i32)) -> bool {
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| ^^^^^^^^^^^
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| |
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| expected `a::Bar`, found opaque type
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| help: change the parameter type to match the trait: `&(a::Bar, i32)`
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= note: expected signature `fn(&a::Bar, &(a::Bar, _)) -> _`
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found signature `fn(&a::Bar, &(a::Foo, _)) -> _`
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error: unconstrained opaque type
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--> $DIR/recursive-type-alias-impl-trait-declaration-too-subtle.rs:18:16
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LL | type Foo = impl PartialEq<(Foo, i32)>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `Foo` must be used in combination with a concrete type within the same module
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error[E0053]: method `eq` has an incompatible type for trait
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--> $DIR/recursive-type-alias-impl-trait-declaration-too-subtle.rs:24:30
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LL | type Foo = impl PartialEq<(Foo, i32)>;
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| -------------------------- the expected opaque type
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...
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LL | fn eq(&self, _other: &(Bar, i32)) -> bool {
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| ^^^^^^^^^^^
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| |
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| expected opaque type, found `b::Bar`
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| help: change the parameter type to match the trait: `&(b::Foo, i32)`
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= note: expected signature `fn(&b::Bar, &(b::Foo, _)) -> _`
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found signature `fn(&b::Bar, &(b::Bar, _)) -> _`
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note: this item must have the opaque type in its signature in order to be able to register hidden types
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--> $DIR/recursive-type-alias-impl-trait-declaration-too-subtle.rs:24:12
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LL | fn eq(&self, _other: &(Bar, i32)) -> bool {
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| ^^
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error: aborting due to 4 previous errors
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For more information about this error, try `rustc --explain E0053`.
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