Allow &raw [mut | const] for union field
#19867
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ChayimFriedman2
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May 26, 2025
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I decided to stick with separate methods because of I dont know how to rewrite this without recursion, and, I believe, it should be fine like this (not inlined) even if we used this methods just for this single case |
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I feel like it'll be better (and more performant) if we'll just unconditionally call |
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@rustbot ready |
Veykril
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…iler-errors Allow `&raw [mut | const]` for union field in safe code fixes rust-lang#141264 r? `@Veykril` Unresolved questions: - [x] Any edge cases? - [x] How this works with rust-analyzer (because all I've did is prevent compiler from emitting error in `&raw` context) (rust-lang/rust-analyzer#19867) - [x] Should we allow `addr_of!` and `addr_of_mut!` as well? In current version they both (`&raw` and `addr_of!`) are allowed (They are the same) - [x] Is chain of union fields is a safe? (Yes)
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…iler-errors Allow `&raw [mut | const]` for union field in safe code fixes rust-lang#141264 r? ``@Veykril`` Unresolved questions: - [x] Any edge cases? - [x] How this works with rust-analyzer (because all I've did is prevent compiler from emitting error in `&raw` context) (rust-lang/rust-analyzer#19867) - [x] Should we allow `addr_of!` and `addr_of_mut!` as well? In current version they both (`&raw` and `addr_of!`) are allowed (They are the same) - [x] Is chain of union fields is a safe? (Yes)
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Rollup merge of #141469 - Kivooeo:remove-usnsafegate, r=compiler-errors Allow `&raw [mut | const]` for union field in safe code fixes #141264 r? ``@Veykril`` Unresolved questions: - [x] Any edge cases? - [x] How this works with rust-analyzer (because all I've did is prevent compiler from emitting error in `&raw` context) (rust-lang/rust-analyzer#19867) - [x] Should we allow `addr_of!` and `addr_of_mut!` as well? In current version they both (`&raw` and `addr_of!`) are allowed (They are the same) - [x] Is chain of union fields is a safe? (Yes)
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Allow `&raw [mut | const]` for union field in safe code fixes rust-lang/rust#141264 r? ``@Veykril`` Unresolved questions: - [x] Any edge cases? - [x] How this works with rust-analyzer (because all I've did is prevent compiler from emitting error in `&raw` context) (rust-lang/rust-analyzer#19867) - [x] Should we allow `addr_of!` and `addr_of_mut!` as well? In current version they both (`&raw` and `addr_of!`) are allowed (They are the same) - [x] Is chain of union fields is a safe? (Yes)
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follow up rust-lang/rust#141469
i didn’t test it locally, just relying on the tests for now. also not really familiar with rust-analyzer code, but tried my best
if there’s anything that can be improved, feel free to point it out
r? @Veykril