Rollup merge of #141469 - Kivooeo:remove-usnsafegate, r=compiler-errors

matthiaskrgr · web-flow · commit bcc9ff942a74 · 2025-09-28T18:13:11.000+02:00
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)
diff --git a/tests/pass/both_borrows/smallvec.rs b/tests/pass/both_borrows/smallvec.rs
@@ -25,7 +25,7 @@ impl<T, const N: usize> RawSmallVec<T, N> {
     }
 
     const fn as_mut_ptr_inline(&mut self) -> *mut T {
-        (unsafe { &raw mut self.inline }) as *mut T
+        &raw mut self.inline as *mut T
     }
 
     const unsafe fn as_mut_ptr_heap(&mut self) -> *mut T {

Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,7 @@ impl<T, const N: usize> RawSmallVec<T, N> {`
`25`	`25`	`}`
`26`	`26`
`27`	`27`	`const fn as_mut_ptr_inline(&mut self) -> *mut T {`
`28`		`- (unsafe { &raw mut self.inline }) as *mut T`
	`28`	`+ &raw mut self.inline as *mut T`
`29`	`29`	`}`
`30`	`30`
`31`	`31`	`const unsafe fn as_mut_ptr_heap(&mut self) -> *mut T {`