mirror of https://github.com/rust-lang/rust
23 lines
479 B
Rust
23 lines
479 B
Rust
// Check that projections don't count as constraining type parameters.
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struct S<T>(T);
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trait Tr { type Assoc; fn test(); }
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impl<T: Tr> S<T::Assoc> {
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//~^ ERROR the type parameter `T` is not constrained
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fn foo(self, _: T) {
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T::test();
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}
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}
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trait Trait1<T> { type Bar; }
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trait Trait2<'x> { type Foo; }
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impl<'a,T: Trait2<'a>> Trait1<<T as Trait2<'a>>::Foo> for T {
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//~^ ERROR the lifetime parameter `'a` is not constrained
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type Bar = &'a ();
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}
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fn main() {}
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