Skip allocation if handle_interrupt arg is already usable
If the supplied hash is already frozen and compare-by-identity, we can use it directly (still checking its contents are valid symbols), without making a new copy.
Added by matthewd (Matthew Draper) almost 2 years ago
Skip allocation if handle_interrupt arg is already usable
If the supplied hash is already frozen and compare-by-identity, we can
use it directly (still checking its contents are valid symbols), without
making a new copy.