intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 78 insertions, 0 deletions

diff --git a/library/cpp/protobuf/json/proto2json.h b/library/cpp/protobuf/json/proto2json.h
new file mode 100644
index 0000000000..89a1781a40
--- /dev/null
+++ b/library/cpp/protobuf/json/proto2json.h
@@ -0,0 +1,78 @@
+#pragma once
+
+#include "config.h"
+#include "json_output.h"
+
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/descriptor.pb.h>
+#include <google/protobuf/message.h>
+
+#include <util/generic/fwd.h>
+#include <util/generic/vector.h>
+#include <util/generic/yexception.h>
+#include <util/stream/str.h>
+
+#include <functional>
+
+namespace NJson {
+    class TJsonValue;
+    class TJsonWriter;
+}
+
+class IOutputStream;
+class TStringStream;
+
+namespace NProtobufJson {
+    void Proto2Json(const NProtoBuf::Message& proto, IJsonOutput& jsonOutput,
+                    const TProto2JsonConfig& config = TProto2JsonConfig(), bool closeMap = true);
+
+    void Proto2Json(const NProtoBuf::Message& proto, NJson::TJsonWriter& writer,
+                    const TProto2JsonConfig& config = TProto2JsonConfig());
+
+    /// @throw yexception
+    void Proto2Json(const NProtoBuf::Message& proto, NJson::TJsonValue& json,
+                    const TProto2JsonConfig& config = TProto2JsonConfig());
+
+    /// @throw yexception
+    void Proto2Json(const NProtoBuf::Message& proto, IOutputStream& out,
+                    const TProto2JsonConfig& config);
+    // Generated code shortcut
+    template <class T>
+    inline void Proto2Json(const T& proto, IOutputStream& out) {
+        out << proto.AsJSON();
+    }
+
+    // TStringStream deserves a special overload as its operator TString() would cause ambiguity
+    /// @throw yexception
+    void Proto2Json(const NProtoBuf::Message& proto, TStringStream& out,
+                    const TProto2JsonConfig& config);
+    // Generated code shortcut
+    template <class T>
+    inline void Proto2Json(const T& proto, TStringStream& out) {
+        out << proto.AsJSON();
+    }
+
+    /// @throw yexception
+    void Proto2Json(const NProtoBuf::Message& proto, TString& str,
+                    const TProto2JsonConfig& config);
+    // Generated code shortcut
+    template <class T>
+    inline void Proto2Json(const T& proto, TString& str) {
+        str.clear();
+        TStringOutput out(str);
+        out << proto.AsJSON();
+    }
+
+    /// @throw yexception
+    TString Proto2Json(const NProtoBuf::Message& proto,
+                       const TProto2JsonConfig& config);
+    // Returns incorrect result if proto contains another NProtoBuf::Message
+    // Generated code shortcut
+    template <class T>
+    inline TString Proto2Json(const T& proto) {
+        TString result;
+        Proto2Json(proto, result);
+        return result;
+    }
+
+}