38 lines
897 B
Rust
38 lines
897 B
Rust
// Copyright 2016 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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trait Make {
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type Out;
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fn make() -> Self::Out;
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}
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impl Make for () {
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type Out = ();
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fn make() -> Self::Out {}
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}
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// Also make sure we don't hit an ICE when the projection can't be known
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fn f<T: Make>() -> <T as Make>::Out { loop {} }
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// ...and that it works with a blanket impl
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trait Tr {
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type Assoc;
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}
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impl<T: Make> Tr for T {
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type Assoc = ();
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}
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fn g<T: Make>() -> <T as Tr>::Assoc { }
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fn main() {}
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