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Rollup merge of #137764 - compiler-errors:always-applicable-negative-impl, r=lcnr

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Ensure that negative auto impls are always applicable

r? lcnr (or reassign if you dont want to review)

https://github.com/rust-lang/rust/issues/68318#issuecomment-2689265030
This commit is contained in:
Michael Goulet 2025-03-06 12:22:16 -05:00 • committed by GitHub
commit 00132141c7
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23 changed files with 359 additions and 151 deletions
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10
compiler/rustc_data_structures/src/marker.rs
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@ -1,3 +1,5 @@
use std::alloc::Allocator;
#[rustc_on_unimplemented(message = "`{Self}` doesn't implement `DynSend`. \
Add it to `rustc_data_structures::marker` or use `IntoDynSyncSend` if it's already `Send`")]
// This is an auto trait for types which can be sent across threads if `sync::is_dyn_thread_safe()`
@ -28,8 +30,8 @@ impls_dyn_send_neg!(
[*const T where T: ?Sized]
[*mut T where T: ?Sized]
[std::ptr::NonNull<T> where T: ?Sized]
[std::rc::Rc<T> where T: ?Sized]
[std::rc::Weak<T> where T: ?Sized]
[std::rc::Rc<T, A> where T: ?Sized, A: Allocator]
[std::rc::Weak<T, A> where T: ?Sized, A: Allocator]
[std::sync::MutexGuard<'_, T> where T: ?Sized]
[std::sync::RwLockReadGuard<'_, T> where T: ?Sized]
[std::sync::RwLockWriteGuard<'_, T> where T: ?Sized]
@ -96,8 +98,8 @@ impls_dyn_sync_neg!(
[std::cell::RefCell<T> where T: ?Sized]
[std::cell::UnsafeCell<T> where T: ?Sized]
[std::ptr::NonNull<T> where T: ?Sized]
[std::rc::Rc<T> where T: ?Sized]
[std::rc::Weak<T> where T: ?Sized]
[std::rc::Rc<T, A> where T: ?Sized, A: Allocator]
[std::rc::Weak<T, A> where T: ?Sized, A: Allocator]
[std::cell::OnceCell<T> where T]
[std::sync::mpsc::Receiver<T> where T]
[std::sync::mpsc::Sender<T> where T]