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| author | bors <bors@rust-lang.org> | 2024-03-06 18:51:11 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2024-03-06 18:51:11 +0000 |
| commit | 305d2b0f5c7e8081ab21f78e2d53ed8f84aebecd (patch) | |
| tree | e8c9415143a6307f929727db3da941edda124d78 /library/alloc/src/boxed.rs | |
| parent | 033c1e00b0fda6616c1442ecf40bb79da8c5db20 (diff) | |
| parent | 3c2318c0b21e2f4473c2465a4d9481ccd21906dd (diff) | |
Auto merge of #3363 - RalfJung:rustup, r=RalfJung
Rustup This should finally work again :)
Diffstat (limited to 'library/alloc/src/boxed.rs')
| -rw-r--r-- | library/alloc/src/boxed.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/library/alloc/src/boxed.rs b/library/alloc/src/boxed.rs index b202d9250d5..2736e5ee6c5 100644 --- a/library/alloc/src/boxed.rs +++ b/library/alloc/src/boxed.rs @@ -2062,6 +2062,9 @@ impl<Args: Tuple, F: AsyncFn<Args> + ?Sized, A: Allocator> AsyncFn<Args> for Box #[unstable(feature = "coerce_unsized", issue = "18598")] impl<T: ?Sized + Unsize<U>, U: ?Sized, A: Allocator> CoerceUnsized<Box<U, A>> for Box<T, A> {} +// It is quite crucial that we only allow the `Global` allocator here. +// Handling arbitrary custom allocators (which can affect the `Box` layout heavily!) +// would need a lot of codegen and interpreter adjustments. #[unstable(feature = "dispatch_from_dyn", issue = "none")] impl<T: ?Sized + Unsize<U>, U: ?Sized> DispatchFromDyn<Box<U>> for Box<T, Global> {} |