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module Puppet
module Util
class ExternalIterator
def initialize(coll)
@coll = coll
@cur_index = -1
end
def next
@cur_index = @cur_index + 1
item_at(@cur_index)
end
def peek
item_at(@cur_index + 1)
end
private
def item_at(index)
if @coll.length > index
[@coll[index], index]
else
[nil, nil]
end
end
end
end
end
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