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Auto merge of #32228 - jonas-schievink:diag1, r=sanxiyn
Normalize return type when checking for E0269 Fixes #31597 First time dealing with normalization. Maybe `normalize_associated_type` would be better here, but it seems to imply it's only used during trans.
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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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trait Make { | ||
type Out; | ||
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fn make() -> Self::Out; | ||
} | ||
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impl Make for () { | ||
type Out = (); | ||
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fn make() -> Self::Out {} | ||
} | ||
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// Also make sure we don't hit an ICE when the projection can't be known | ||
fn f<T: Make>() -> <T as Make>::Out { loop {} } | ||
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// ...and that it works with a blanket impl | ||
trait Tr { | ||
type Assoc; | ||
} | ||
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impl<T: Make> Tr for T { | ||
type Assoc = (); | ||
} | ||
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fn g<T: Make>() -> <T as Tr>::Assoc { } | ||
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fn main() {} |