Class: OCG::Operator::MIX

Inherits:
Abstract show all
Defined in:
lib/ocg/operator/mix.rb

Constant Summary

Constants inherited from Abstract

Abstract::VARIABLES_TO_COPY

Constants inherited from OCG

DELEGATORS, VARIABLES_TO_COPY, VERSION

Constants included from Copyable

Copyable::VARIABLES_TO_COPY

Instance Method Summary collapse

Methods inherited from Abstract

#reset

Methods inherited from OCG

#and, #each, #mix, #or, prepare_generator

Constructor Details

#initialize(*args) ⇒ MIX

Returns a new instance of MIX.



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# File 'lib/ocg/operator/mix.rb', line 9

def initialize(*args)
  super

  reset_main_generator
end

Instance Method Details

#finished? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ocg/operator/mix.rb', line 53

def finished?
  @main_generator.finished?
end

#initialize_copy(*args) ⇒ Object 



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# File 'lib/ocg/operator/mix.rb', line 15

def initialize_copy(*args)
  super

  reset_main_generator
end

#last ⇒ Object 



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# File 'lib/ocg/operator/mix.rb', line 42

def last
  left  = @left_generator.last
  right = @right_generator.last

  merge_results left, right
end

#length ⇒ Object 



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# File 'lib/ocg/operator/mix.rb', line 57

def length
  @main_generator.length
end

#next ⇒ Object 



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# File 'lib/ocg/operator/mix.rb', line 30

def next
  return nil if finished?

  @left_generator.reset if @left_generator.finished?
  @right_generator.reset if @right_generator.finished?

  left  = @left_generator.next
  right = @right_generator.next

  merge_results left, right
end

#reset_main_generator ⇒ Object 



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# File 'lib/ocg/operator/mix.rb', line 21

def reset_main_generator
  @main_generator =
    if @right_generator.length > @left_generator.length
      @right_generator
    else
      @left_generator
    end
end

#started? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ocg/operator/mix.rb', line 49

def started?
  @main_generator.started?
end