I notice in recent commits that a number of these have been added:
/\[(\d+)\]/.freeze
I thought that Regexps are immutable. Furthermore, Regexp literals don't
generate a new object each time they are encountered:
irb(main):001:0> 3.times { puts /\d+/.object_id }
-605707646
-605707646
-605707646
=> 3
irb(main):002:0>
Unlike strings:
irb(main):002:0> 3.times { puts "abc".freeze.object_id }
-605884514
-605884594
-605884674
=> 3
So, could someone please explain why .freeze is beneficial on regexp
literals?
Thanks,
Brian.
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