Module deque 

ALTREP storage for native-element ring buffers.

Element and region reads preserve the split buffer. A contiguous pointer is exposed only after VecDeque::make_contiguous, without converting the owner to a Vec or copying into an R vector.

Macros

impl_native_deque 🔒

Functions

contiguous_slice 🔒

Borrow the complete logical sequence only when it occupies one segment.

copy_region 🔒

Copy at most two contiguous regions, with no allocation or rearrangement.