public override Node VisitClass([NotNull] coolgrammarParser.ClassContext context)
        {
            List <Method_Def> met  = new List <Method_Def>();
            List <Attr_Def>   attr = new List <Attr_Def>();

            foreach (var item in context.feature())
            {
                var v = Visit(item);
                if (v is Method_Def)
                {
                    met.Add((Method_Def)v);
                }
                else
                {
                    attr.Add((Attr_Def)v);
                }
            }

            string father;

            if (context.TYPE().Length > 1)
            {
                father = context.TYPE(1).GetText();
            }
            else
            {
                father = "Object";
            }

            return(new Class_Def(new Type_cool(context.TYPE(0).GetText()), new Type_cool(father), new Lista <Method_Def>(met), new Lista <Attr_Def>(attr)));
        }
 /// <summary>
 /// Visit a parse tree produced by <see cref="coolgrammarParser.class"/>.
 /// <para>
 /// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
 /// on <paramref name="context"/>.
 /// </para>
 /// </summary>
 /// <param name="context">The parse tree.</param>
 /// <return>The visitor result.</return>
 public virtual Result VisitClass([NotNull] coolgrammarParser.ClassContext context)
 {
     return(VisitChildren(context));
 }