33 lines
946 B
Rust
33 lines
946 B
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// 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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