Class: IceCube::Enumerator

Inherits:
Enumerator
  • Object
show all
Defined in:
lib/ice_cube/enumerator.rb

Instance Method Summary collapse

Constructor Details

#initialize(schedule, opening_time, closing_time) ⇒ Enumerator

Returns a new instance of Enumerator.



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# File 'lib/ice_cube/enumerator.rb', line 4

def initialize(schedule, opening_time, closing_time)
  @schedule = schedule
  @opening_time = TimeUtil.ensure_time(opening_time)
  @closing_time = TimeUtil.ensure_time(closing_time)
  align_opening_time
  @cursor = @opening_time
end

Instance Method Details

#each ⇒ Object

Raises:

  • (StopIteration) 


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# File 'lib/ice_cube/enumerator.rb', line 12

def each
  return to_enum unless block_given?
  while res = self.next && @closing_time.nil? || res <= @closing_time
    yield Occurrence.new(res, res + schedule.duration)
  end
  raise StopIteration
end

#next ⇒ Object 



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# File 'lib/ice_cube/enumerator.rb', line 20

def next
  t1 = full_required? ? schedule.start_time : opening_time
  Enumerator.new do |yielder|
    loop do
      t1.tap { |t| puts "LDA #{t}" + " #{File.basename(__FILE__)}:#{__LINE__}" }
      break unless (t0 = next_time(t1, closing_time).tap { |t| puts "LDB #{t}" + " #{File.basename(__FILE__)}:#{__LINE__}" })
      break if closing_time && t0 > closing_time
      yielder << (block_given? ? block.call(t0) : t0) if t0 >= opening_time
      break unless (t1 = next_time(t0 + 1, closing_time))
      break if closing_time && t1 > closing_time
      if TimeUtil.same_clock?(t0, t1) && recurrence_rules.any?(&:dst_adjust?)
        wind_back_dst
        next (t1 += 1)
      end
      yielder << (block_given? ? block.call(t1) : t1) if t1 >= opening_time
      next (t1 += 1)
    end
  end
end