Change `{Box,Arc,Rc,Weak}::into_raw` to only work with `A = Global`

Also applies to `Vec::into_raw_parts`.

The expectation is that you can round-trip these methods with
`from_raw`, but this is only true when using the global allocator. With
custom allocators you should instead be using
`into_raw_with_allocator` and `from_raw_in`.

The implementation of `Box::leak` is changed to use
`Box::into_raw_with_allocator` and explicitly leak the allocator (which
was already the existing behavior). This is because, for `leak` to be
safe, the allocator must not free its underlying backing store. The
`Allocator` trait only guarantees that allocated memory remains valid
until the allocator is dropped.

0 files changed, 0 insertions, 0 deletions