[pointer] Update requirements for zero-sized types #1614
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Now that [1] is completed, zero-sized accesses no longer require provenance. Per [2], zero-sized references are no longer required to be dereferenceable, and so may not carry provenance. This commit updates `Ptr`'s invariants to not require provenance or a valid allocation when its referent is zero-sized. [1] rust-lang/rust#117945 [2] rust-lang/rust#125021 Closes #874
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #1614 +/- ##
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+ Coverage 87.70% 87.77% +0.06%
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Files 15 15
Lines 5565 5594 +29
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+ Hits 4881 4910 +29
Misses 684 684 ☔ View full report in Codecov by Sentry. |
jswrenn
approved these changes
Sep 7, 2024
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Now that [1] is completed, zero-sized accesses no longer require provenance. Per [2], zero-sized references are no longer required to be dereferenceable, and so may not carry provenance.
This commit updates
Ptr's invariants to not require provenance or a valid allocation when its referent is zero-sized.[1] rust-lang/rust#117945
[2] rust-lang/rust#125021
Closes #874