Module: Datapipes::Composable

Included in:
Sink, Source
Defined in:
lib/datapipes/composable.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#accumulated ⇒ Object

Returns the value of attribute accumulated.



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# File 'lib/datapipes/composable.rb', line 3

def accumulated
  @accumulated
end

Instance Method Details

#+(op2) ⇒ Object

Source and Sink can’t composed as function composition. So accumulates composed objects internaly, then use them later.



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# File 'lib/datapipes/composable.rb', line 7

def +(op2)
  op1 = self
  op1_acc = (op1.accumulated || [op1])
  op2_acc = (op2.accumulated || [op2])
  self.class.new.tap do |o|
    o.accumulated = op1_acc + op2_acc
  end
end