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| author | Matthias Krüger <476013+matthiaskrgr@users.noreply.github.com> | 2025-07-19 08:55:33 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-07-19 08:55:33 +0200 |
| commit | fff53f1dbbceffb8f017eb555b04ee056a246097 (patch) | |
| tree | 90d26dafb429711399d746164e177550088d9837 /compiler/rustc_llvm/llvm-wrapper | |
| parent | ebd8557637b33cc09b6ee8273f3154d5d3af6a15 (diff) | |
| parent | 61c2c1211fc0591ff000fcb742f352f4e319ea82 (diff) | |
| download | rust-fff53f1dbbceffb8f017eb555b04ee056a246097.tar.gz rust-fff53f1dbbceffb8f017eb555b04ee056a246097.zip | |
Rollup merge of #141076 - the8472:fix-zip-panic-safety2, r=workingjubilee
fix Zip unsoundness (again) Some history: The Zip TrustedRandomAccess specialization has tried to emulate the side-effects of the naive implementation for a long time, including backwards iteration. #82292 tried to fix unsoundness (#82291) in that side-effect-preservation code, but this introduced some panic-safety unsoundness (#86443), but the fix #86452 didn't fix it for nested Zip iterators (#137255). Rather than piling yet another fix ontop of this heap of fixes this PR reduces the number of cases in which side-effects will be preserved; the necessary API guarantee change was approved in #83791 but we haven't made use of that so far. fixes #137255
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