class Opal::Parser

def _reduce_213(val, _values, result) 

def _reduce_213(val, _values, result)
                      result = new_call val[1], [:"-@", []], []
                      if val[1].type == :int
                        val[1][1] = -val[1][1]
                        result = val[1]
                      elsif val[1].type == :float
                        val[1][1] = -val[1][1].to_f
                        result = val[1]
                      end
                    
    result
end