Method: Transformer::Lazy#take_while

Defined in:
lib/coroutines/base.rb

#take_while(&block) ⇒ Object 



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# File 'lib/coroutines/base.rb', line 443

def take_while(&block)
  Transformer.new do |y|
    yy = Yielder.new y
    yy.define_yield do |*values|
      if block.call(*values)
        y.yield(*values)
      else
        raise StopIteration
      end
      yy
    end
    @trans.call yy
  end
end