# File lib/parser/ruby22.rb, line 5897
def _reduce_469(val, _values, result)
                      if @builder.respond_to? :negate
                        # AST builder interface compatibility
                        result = @builder.negate(val[0], val[1])
                      else
                        result = @builder.unary_num(val[0], val[1])
                      end
                    
    result
end