Strengthen soundness proof for size_of_val_raw #1574
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jswrenn
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| // [1] TODO(#429), | ||
| // TODO(https://github.com/rust-lang/unsafe-code-guidelines/issues/465#issuecomment-1782206516): | ||
| // Citation for this? |
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Is [1] still referenced somewhere after your revision?
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #1574 +/- ##
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Coverage 87.70% 87.70%
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Files 15 15
Lines 5563 5563
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Hits 4879 4879
Misses 684 684 ☔ View full report in Codecov by Sentry. |
Previously, we needed to rely on the fact that the instance of any valid Rust type with 0 elements has a size (in number of bytes) which is not greater than `isize::MAX`. Providing this as a guarantee turned out to be controversial. [1] This was made possible by rust-lang/rust#126152. [1] rust-lang/unsafe-code-guidelines#465 (comment)
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jswrenn
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Aug 6, 2024
|
Can we just use |
A few issues:
Note that |
djkoloski
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Aug 6, 2024
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Previously, we needed to rely on the fact that the instance of any valid Rust type with 0 elements has a size (in number of bytes) which is not greater than
isize::MAX. Providing this as a guarantee turned out to be controversial. [1]This was made possible by rust-lang/rust#126152.
[1] rust-lang/unsafe-code-guidelines#465 (comment)