public override void EnterSupertypesDecl(ExpressParser.SupertypesDeclContext context)
        {
            if (context.ABSTRACT() != null)
            {
                currentEntityInfo.IsAbstract = true;
            }

            currentEntityInfo.SupertypeOf.AddRange(context.oneOf().idList().GetText().Split(','));
        }
 /// <summary>
 /// Exit a parse tree produced by the <c>SupertypesDecl</c>
 /// labeled alternative in <see cref="ExpressParser.supertypeDeclaration"/>.
 /// <para>The default implementation does nothing.</para>
 /// </summary>
 /// <param name="context">The parse tree.</param>
 public virtual void ExitSupertypesDecl([NotNull] ExpressParser.SupertypesDeclContext context)
 {
 }