1 files changed, 5 insertions, 0 deletions
diff --git a/src/qscxmllib/datamodel.h b/src/qscxmllib/datamodel.h
index 89e1138..05a9743 100644
--- a/src/qscxmllib/datamodel.h
+++ b/src/qscxmllib/datamodel.h
@@ -56,6 +56,8 @@ struct ForeachInfo {
 typedef qint32 EvaluatorId;
 enum { NoEvaluator = -1 };
 
+class NullDataModel;
+class EcmaScriptDataModel;
 class SCXML_EXPORT DataModel
 {
     Q_DISABLE_COPY(DataModel)
@@ -82,6 +84,9 @@ public:
     virtual void setStringProperty(const QString &name, const QString &value, const QString &context,
                                    bool *ok) = 0;
 
+    virtual NullDataModel *asNullDataModel();
+    virtual EcmaScriptDataModel *asEcmaScriptDataModel();
+
 private:
     StateTable *m_table;
 };