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22 lines
772 B
Rust
22 lines
772 B
Rust
#![feature(associated_type_defaults)]
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struct S<T = u8>(T);
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trait Tr<T = u8> {
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type A = ();
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}
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impl Tr<Self> for S {} // OK
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impl<T: Tr<Self>> Tr<T> for S {} // OK
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impl Tr for S where Self: Copy {} // OK
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impl Tr for S where S<Self>: Copy {} // OK
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impl Tr for S where Self::A: Copy {} // OK
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impl Tr for Self {} //~ ERROR `Self` is not valid in the self type of an impl block
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impl Tr for S<Self> {} //~ ERROR `Self` is not valid in the self type of an impl block
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impl Self {} //~ ERROR `Self` is not valid in the self type of an impl block
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impl S<Self> {} //~ ERROR `Self` is not valid in the self type of an impl block
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impl (Self, Self) {} //~ ERROR `Self` is not valid in the self type of an impl block
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impl Tr<Self::A> for S {} //~ ERROR cycle detected
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fn main() {}
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