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Auto merge of #45442 - matthewjasper:const-dynamic-capture-error, r=petrochenkov
Cleanly error for non-const variable in associated const Not sure if wrapping the whole `visit::walk_impl_item` call is correct. Closes #44239
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commit
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@ -2084,7 +2084,9 @@ fn resolve_implementation(&mut self,
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ValueNS,
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impl_item.span,
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|n, s| ResolutionError::ConstNotMemberOfTrait(n, s));
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visit::walk_impl_item(this, impl_item);
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this.with_constant_rib(|this|
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visit::walk_impl_item(this, impl_item)
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);
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}
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ImplItemKind::Method(ref sig, _) => {
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// If this is a trait impl, ensure the method
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19
src/test/compile-fail/issue-44239.rs
Normal file
19
src/test/compile-fail/issue-44239.rs
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@ -0,0 +1,19 @@
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// Copyright 2017 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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fn main() {
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let n = 0;
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struct Foo;
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impl Foo {
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const N: usize = n;
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//~^ ERROR attempt to use a non-constant value
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}
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}
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