intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 46 insertions, 0 deletions

diff --git a/library/cpp/yson/node/node_builder.h b/library/cpp/yson/node/node_builder.h
new file mode 100644
index 0000000000..69800016e0
--- /dev/null
+++ b/library/cpp/yson/node/node_builder.h
@@ -0,0 +1,46 @@
+#pragma once
+
+#include "node.h"
+
+#include <library/cpp/json/json_reader.h>
+
+#include <library/cpp/yson/consumer.h>
+
+#include <util/generic/stack.h>
+
+namespace NYT {
+
+////////////////////////////////////////////////////////////////////////////////
+
+class TNodeBuilder
+    : public ::NYson::TYsonConsumerBase
+{
+public:
+    TNodeBuilder(TNode* node);
+
+    void OnStringScalar(TStringBuf) override;
+    void OnInt64Scalar(i64) override;
+    void OnUint64Scalar(ui64) override;
+    void OnDoubleScalar(double) override;
+    void OnBooleanScalar(bool) override;
+    void OnEntity() override;
+    void OnBeginList() override;
+    void OnListItem() override;
+    void OnEndList() override;
+    void OnBeginMap() override;
+    void OnKeyedItem(TStringBuf) override;
+    void OnEndMap() override;
+    void OnBeginAttributes() override;
+    void OnEndAttributes() override;
+    void OnNode(TNode node);
+
+private:
+    TStack<TNode*> Stack_;
+
+private:
+    inline void AddNode(TNode node, bool pop);
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace NYT