get rid of const.no-mut-refs #2080
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FCP passed, rust-lang/rust#148746 is in the bors queue now. |
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The rule is that "mutable references contained within a mutable static may be referenced in the final value of a constant." However, the key here is that "mutable static" means either a `static mut` item or a `static` item with an interior mutable type. We had made that clear over in `const-eval.const-expr.path-static` but not in our rules about const item validity, and our link for "mutable static" had implied it may mean `static mut`. Let's fix that and add an example to demonstrate the point.
These link reference definitions were used in `const.no-mut-refs` and are no longer needed.
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This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed. Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers. |
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I had a WIP commit to clean up the language we're about to delete. If the commit looks OK to you, I'd like to put this in the history for posterity's stake. I've stacked your commit onto it and also deleted the link reference definitions that are now unused. |
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LGTM, thanks! |
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Pulls in rust-lang/reference#2080 to fix the tests.
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Update reference Pulls in rust-lang/reference#2080 to fix the tests. Closes #149575
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This updates to mdbook 0.5.2 from mdbook 0.4.52. A primary aspect of this change is that it splits the `mdbook` crate into multiple crates, and various API changes and cleanup. There's full release notes and a migration guide at https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-050. This also includes submodule updates: ## book 8 commits in f660f341887c8bbcd6c24fbfdf5d2a262f523965..9c9104e8a82430f97f42e738051bda718919211c 2025-10-27 21:41:51 -0400 to 2025-12-10 11:33:49 -0500 - Update to mdbook 0.5 - Update ch07-02-defining-modules-to-control-scope-and-privacy.md - use AND for search terms - Consistently use let...else - Merge branch 'main' into fix-typo-17-02 - Fix typo in section 17.2 - Revert "Fix typo in section 17.2" - Fix typo in section 17.2 ## edition-guide 2 commits in 5c621253d8f2a5a4adb64a6365905db67dffe3a2..c3c0f0b3da26610138b7ba7663f60cd2c68cf184 2025-10-23 14:13:01 +0000 to 2025-11-28 18:54:18 +0000 - Update to mdbook 0.5 (rust-lang/edition-guide#381) - Link to 1.56.0 and 1.85.0 blog posts (rust-lang/edition-guide#380) ## nomicon 6 commits in 60f0b30d8ec1c9eb5c2582f2ec55f1094b0f8c42..9fe8fa599ad228dda74f240cc32b54bc5c1aa3e6 2025-10-20 13:05:39 +0000 to 2025-12-03 11:54:04 +0000 - Remove references to outdated unsafe code guidelines (rust-lang/nomicon#512) - Update to mdbook 0.5 (rust-lang/nomicon#511) - Fix grammar in ffi.md (rust-lang/nomicon#510) - Add CITATION.cff (rust-lang/nomicon#507) - Use the newest Layout::array size checks for vec-alloc (rust-lang/nomicon#508) - review comment: dropck analysis is *not* trivial (rust-lang/nomicon#498) ## reference 17 commits in e122eefff3fef362eb7e0c08fb7ffbf5f9461905..50c5de90487b68d429a30cc9466dc8f5b410128f 2025-10-28 20:52:27 +0000 to 2025-12-09 22:19:05 +0000 - UB: update the extra clause for provenance UB during const evaluation (rust-lang/reference#2091) - Remove `[no-mentions]` handler in our triagebot config (rust-lang/reference#2102) - Clarify that omitting `nostack` is a promise from the compiler to the programmer (rust-lang/reference#1999) - Specify that range patterns must be nonempty. (rust-lang/reference#2093) - Update to mdbook 0.5 (rust-lang/reference#2096) - get rid of const.no-mut-refs (rust-lang/reference#2080) - use oxford comma (rust-lang/reference#2099) - document `cfg` conditions on inline assembly templates and operands (rust-lang/reference#2063) - remove unused "link reference definitions" (rust-lang/reference#2092) - Add review process overview to review-policy.md (rust-lang/reference#2088) - Remove restriction on dereferencing pointers in const (rust-lang/reference#2090) - add 'system' to variadic ABIs (rust-lang/reference#2069) - Guarantee the binary representation of `isize` explicitly (rust-lang/reference#2064) - Update `no_implicit_prelude` to use the attribute template (rust-lang/reference#1914) - Update `no_std` to use the attribute template (rust-lang/reference#1913) - const_eval.md: be more clear where link leads to (rust-lang/reference#2083) - specify s390x target features (rust-lang/reference#1972) ## rust-by-example 7 commits in 160e6bbca70b0c01aa4de88d19db7fc5ff8447c3..7d21279e40e8f0e91c2a22c5148dd2d745aef8b6 2025-11-03 09:26:45 -0300 to 2025-12-01 15:02:09 -0300 - Update to mdbook 0.5 (rust-lang/rust-by-example#1977) - Use `From::from` fn pointer to convert to boxed errors (rust-lang/rust-by-example#1906) - link the _tuple_ page instead "TupleStruct" (rust-lang/rust-by-example#1909) - enum_use.md: avoid an uncommon term (rust-lang/rust-by-example#1976) - make search less surprising (rust-lang/rust-by-example#1975) - Update documentation for `any` function in iter_any.md (rust-lang/rust-by-example#1973) - Revise `Path` type documentation for clarity (rust-lang/rust-by-example#1972)
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The reference PR that goes with rust-lang/rust#148746.
Fixes #2074.