mirror of https://github.com/rust-lang/rust
17 lines
455 B
Rust
17 lines
455 B
Rust
//@ check-pass
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#![feature(trait_alias)]
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trait Foo<T> {}
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trait Bar { type Assoc; }
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trait Alias<T: Bar> = Foo<T>;
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// Check that an alias only requires us to specify the associated types
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// of the principal's supertraits. For example, we shouldn't require
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// specifying the type `Assoc` on trait `Bar` just because we have some
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// `T: Bar` where clause on the alias... because that makes no sense.
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fn use_alias<T: Bar>(x: &dyn Alias<T>) {}
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fn main() {}
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