767     type PointerMetadata: PointerMetadata;  typedef
776     type MaybeUninit: ?Sized + KnownLayout<PointerMetadata = Self::PointerMetadata>;
803     fn raw_from_ptr_len(bytes: NonNull<u8>, meta: Self::PointerMetadata) -> NonNull<Self>;  in raw_from_ptr_len()
812     fn pointer_to_metadata(ptr: *mut Self) -> Self::PointerMetadata;  in pointer_to_metadata()  argument
839         let meta = Self::PointerMetadata::from_elem_count(0);  in raw_dangling()
870     fn size_for_metadata(meta: Self::PointerMetadata) -> Option<usize> {  in size_for_metadata()
883     fn is_valid_metadata(meta: Self::PointerMetadata) -> bool {  in is_valid_metadata()
892     T: ?Sized + KnownLayout<PointerMetadata = usize>,  in trailing_slice_layout()  argument
900         T: KnownLayout<PointerMetadata = usize>,  in trailing_slice_layout()
943 pub trait PointerMetadata: Copy + Eq + Debug + Ord {  interface
972 impl PointerMetadata for () {  implementation
993 impl PointerMetadata for usize {
1032     type PointerMetadata = usize;  typedef
2524         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in try_ref_from_bytes_with_elems()  argument
2645         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in try_ref_from_prefix_with_elems()  argument
2753         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in try_ref_from_suffix_with_elems()  argument
2849         Self: KnownLayout<PointerMetadata = usize> + IntoBytes,  in try_mut_from_bytes_with_elems()  argument
2960         Self: KnownLayout<PointerMetadata = usize> + IntoBytes,  in try_mut_from_prefix_with_elems()  argument
3060         Self: KnownLayout<PointerMetadata = usize> + IntoBytes,  in try_mut_from_suffix_with_elems()  argument
3301     meta: Option<T::PointerMetadata>,  in try_ref_from_prefix_suffix()  argument
3321     meta: Option<T::PointerMetadata>,  in try_mut_from_prefix_suffix()  argument
3701         Self: KnownLayout<PointerMetadata = usize>,  in new_box_zeroed_with_elems()  argument
4714         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in ref_from_bytes_with_elems()  argument
4813         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in ref_from_prefix_with_elems()  argument
4907         Self: KnownLayout<PointerMetadata = usize> + Immutable,  in ref_from_suffix_with_elems()  argument
4988         Self: IntoBytes + KnownLayout<PointerMetadata = usize> + Immutable,  in mut_from_bytes_with_elems()  argument
5078         Self: IntoBytes + KnownLayout<PointerMetadata = usize>,  in mut_from_prefix_with_elems()  argument
5163         Self: IntoBytes + KnownLayout<PointerMetadata = usize>,  in mut_from_suffix_with_elems()  argument
5477     meta: Option<T::PointerMetadata>,  in ref_from_prefix_suffix()  argument
5497     meta: Option<T::PointerMetadata>,  in mut_from_prefix_suffix()  argument