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Usman Akinyemi
b31dc4ab49
Avoid an ICE for:
struct A;
impl A<B> {}
The compiler no longer panics and can proceed to emit existing diagnostics.
Adds `tests/ui/missing/undeclared-generic-parameter.rs`.
Signed-off-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
37 lines
939 B
Plaintext
37 lines
939 B
Plaintext
error[E0425]: cannot find type `B` in this scope
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--> $DIR/undeclared-generic-parameter.rs:2:8
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LL | struct A;
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| --------- similarly named struct `A` defined here
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LL | impl A<B> {}
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| ^
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help: a struct with a similar name exists
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LL - impl A<B> {}
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LL + impl A<A> {}
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help: you might be missing a type parameter
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LL | impl<B> A<B> {}
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| +++
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error[E0107]: struct takes 0 generic arguments but 1 generic argument was supplied
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--> $DIR/undeclared-generic-parameter.rs:2:6
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LL | impl A<B> {}
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| ^--- help: remove the unnecessary generics
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| |
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| expected 0 generic arguments
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note: struct defined here, with 0 generic parameters
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--> $DIR/undeclared-generic-parameter.rs:1:8
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LL | struct A;
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| ^
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0107, E0425.
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For more information about an error, try `rustc --explain E0107`.
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