Dictionary#keys should return a #dup
Reported by Lars Gierth | May 17th, 2010 @ 08:44 PM
Hi,
currently, modifying a Dictionary while iterating over its keys doesn't work.
dict = Dictionary.new
dict[:foo] = "asd"
dict[:bar] = "fgh"
dict[:t1] = 123
dict[:t2] = 456
dict.each do |k|
do_sth(:with => k)
dict.delete(k)
end
This swallows each second element, as the Enumerator contains the exact array we are modifying in dict.delete.
My suggestion is to make #delete return order.dup instead of order, patch is at http://github.com/lgierth/extlib/tree/dictionary-keys
Best regards,
Lars
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Lars Gierth