core :: Regex :: optimize_has=
self for String::has and is_in, but do not support searchesIf true, self cannont be used with String::search_all, String::replace
or String::split.
# Optimize `self` for `String::has` and `is_in`, but do not support searches
#
# If `true`, `self` cannont be used with `String::search_all`, `String::replace`
# or `String::split`.
var optimize_has = false is writable
lib/core/re.nit:156,2--160,37