Incremental access to a v13 geometry section inside a fully loaded cache
buffer. sectionOffset is the Geometry section's absolute offset (from
the section table). A future evict-to-disk layer swaps the buffer for a
Blob and turns the subarray into a slice() read — the head/chunk contract
is already shaped for that.
Incremental access to a v13 geometry section inside a fully loaded cache buffer.
sectionOffsetis the Geometry section's absolute offset (from the section table). A future evict-to-disk layer swaps the buffer for a Blob and turns the subarray into a slice() read — the head/chunk contract is already shaped for that.