working on an allocator (not allocator-api) and wanted a method that can allocate slice-based DSTs (anything shaped like struct Example{ ..., slice: [u8] }) without performing initialization. as i understand, there's no way to do MaybeUninit<T: ?Sized>, so i came up with my own UnsizedMaybeUninit<T: SliceDst + ?Sized> for use specifically with slice DSTs. i think it's sound (barring assuming without initializing) but i'm really not sure and would appreciate an extra pair of eyes on it
#Type for uninitialized unsized allocations
vast smelt
austere wasp
Since you already require the header to be a single field whose type is exposed via the trait, why not something simpler like this?
https://play.rust-lang.org/?version=nightly&mode=debug&edition=2024&gist=fcfbd3189f37b33e1ecc830fb304da52