rollup merge of #18527 : bkoropoff/issue-18490
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commit
bb7805f58f
2 changed files with 32 additions and 1 deletions
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@ -187,7 +187,11 @@ pub fn check_object_safety(tcx: &ty::ctxt, object_trait: &ty::TyTrait, span: Spa
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receiver through a trait object", method_name))
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}
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ty::StaticExplicitSelfCategory |
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ty::StaticExplicitSelfCategory => {
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// Static methods are always object-safe since they
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// can't be called through a trait object
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return msgs
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}
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ty::ByReferenceExplicitSelfCategory(..) |
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ty::ByBoxExplicitSelfCategory => {}
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}
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27
src/test/run-pass/trait-object-safety.rs
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27
src/test/run-pass/trait-object-safety.rs
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@ -0,0 +1,27 @@
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// Copyright 2014 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 object-safe methods are identified as such. Also
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// acts as a regression test for #18490
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trait Tr {
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// Static methods are always safe regardless of other rules
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fn new() -> Self;
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}
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struct St;
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impl Tr for St {
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fn new() -> St { St }
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}
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fn main() {
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&St as &Tr;
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}
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