public override void EnterDeriveDef(ExpressParser.DeriveDefContext context)
{
var cad = new AttributeData(generator);
cad.IsDerived = true;
currAttrDatas.Add(cad);
((Entity)currTypeData).Attributes.Add(cad);
}
public override void ExitDeriveDef(ExpressParser.DeriveDefContext context)
{
currAttrDatas.Clear();
}