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# for ruby-1.8.0

module DRb
  class DRbServer
    module InvokeMethod18Mixin
      def block_yield(x)
	if x.size == 1 && x[0].class == Array
	  x[0] = DRbArray.new(x[0])
	end
        block_value = @block.call(*x)
      end
      
      def perform_with_block
        @obj.__send__(@msg_id, *@argv) do |*x|
          jump_error = nil
          begin
            block_value = block_yield(x)
          rescue LocalJumpError
            jump_error = $!
          end
          if jump_error
            case jump_error.reason
            when :retry
              retry
            when :break
              break(jump_error.exit_value)
            else
              raise jump_error
            end
          end
          block_value
        end
      end
    end
  end
end