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20 lines
299 B
Rust
20 lines
299 B
Rust
// edition:2018
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#![feature(impl_trait_in_assoc_type)]
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pub trait Bar {
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type E: Copy;
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fn foo<T>() -> Self::E;
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}
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impl<S> Bar for S {
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type E = impl std::marker::Copy;
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fn foo<T>() -> Self::E {
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//~^ ERROR : Copy` is not satisfied [E0277]
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async {}
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}
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}
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fn main() {}
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