stephenafamo / scan / 29675134524

90%

main: 91%

Pull #12

github

perf: reuse the per-query link and destination buffers across rows

scanOneRow calls before/scan/after strictly in sequence for each row,
and the mapper factory runs once per query, so per-query closures can
carry buffers that are reused across rows — the same reasoning behind
the links slice in Mod and the scan-destination buffers in Row.

Reuse the allOptions destinations slice (and its boxed interface
value) across rows, and carry the regular path's row value in a small
reusable holder instead of boxing a new interface value on every row.

This removes two allocations per row from the allOptions path and one
from the regular path.

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