moonbitlang / core / 3154

96%

push

github

perf(hashmap): fix from_array to avoid mid-build rehashing

from_array was creating the initial table with capacity=arr.length(),
but the map grows at 50% load factor. This meant construction would
always trigger a rehash after inserting only half the elements.

Fix: use capacity=arr.length()*2 so all input entries fit without
triggering the grow threshold during construction.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

1 of 1 new or added line in 1 file covered. (100.0%)

13825 of 14443 relevant lines covered (95.72%)

176004.13 hits per line