third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/src/google/protobuf/util/internal/protostream_objectwriter.h

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 65 matching lines @@
  public:
   // Options that control ProtoStreamObjectWriter class's behavior.
   struct Options {
     // Treats integer inputs in google.protobuf.Struct as strings. Normally,
     // integer values are returned in double field "number_value" of
     // google.protobuf.Struct. However, this can cause precision loss for
     // int64/uint64 inputs. This option is provided for cases that want to
     // preserve integer precision.
     bool struct_integers_as_strings;
 
-    Options() : struct_integers_as_strings(false) {}
+    // Not treat unknown fields as an error. If there is an unknown fields,
+    // just ignore it and continue to process the rest.
+    bool ignore_unknown_fields;
+
+    // If true, check if enum name in camel case or without underscore matches
+    // the field name.
+    bool use_lower_camel_for_enums;
+
+    Options()
+        : struct_integers_as_strings(false),
+          ignore_unknown_fields(false),
+          use_lower_camel_for_enums(false) {}
 
     // Default instance of Options with all options set to defaults.
     static const Options& Defaults() {
       static Options defaults;
       return defaults;
     }
   };
 
 // Constructor. Does not take ownership of any parameter passed in.
   ProtoStreamObjectWriter(TypeResolver* type_resolver,
@@ skipping 36 matching lines @@
     // Passes a StartList call through to the Any writer.
     void StartList(StringPiece name);
 
     // Passes an EndList call through to the Any writer.
     void EndList();
 
     // Renders a data piece on the any.
     void RenderDataPiece(StringPiece name, const DataPiece& value);
 
    private:
+    // Before the "@type" field is encountered, we store all incoming data
+    // into this Event struct and replay them after we get the "@type" field.
+    class LIBPROTOBUF_EXPORT Event {
+     public:
+      enum Type {
+        START_OBJECT = 0,
+        END_OBJECT = 1,
+        START_LIST = 2,
+        END_LIST = 3,
+        RENDER_DATA_PIECE = 4,
+      };
+
+      // Constructor for END_OBJECT and END_LIST events.
+      explicit Event(Type type) : type_(type), value_(DataPiece::NullData()) {}
+
+      // Constructor for START_OBJECT and START_LIST events.
+      explicit Event(Type type, StringPiece name)
+          : type_(type),
+            name_(name.ToString()),
+            value_(DataPiece::NullData()) {}
+
+      // Constructor for RENDER_DATA_PIECE events.
+      explicit Event(StringPiece name, const DataPiece& value)
+          : type_(RENDER_DATA_PIECE), name_(name.ToString()), value_(value) {
+        DeepCopy();
+      }
+
+      Event(const Event& other)
+          : type_(other.type_), name_(other.name_), value_(other.value_) {
+        DeepCopy();
+      }
+
+      Event& operator=(const Event& other) {
+        type_ = other.type_;
+        name_ = other.name_;
+        value_ = other.value_;
+        DeepCopy();
+        return *this;
+      }
+
+      void Replay(AnyWriter* writer) const;
+
+     private:
+      void DeepCopy();
+
+      Type type_;
+      string name_;
+      DataPiece value_;
+      string value_storage_;
+    };
+
     // Handles starting up the any once we have a type.
     void StartAny(const DataPiece& value);
 
     // Writes the Any out to the parent writer in its serialized form.
     void WriteAny();
 
     // The parent of this writer, needed for various bits such as type info and
     // the listeners.
     ProtoStreamObjectWriter* parent_;
 
@@ skipping 15 matching lines @@
     int depth_;
 
     // True if the type is a well-known type. Well-known types in Any
     // has a special formating:
     // {
     //   "@type": "type.googleapis.com/google.protobuf.XXX",
     //   "value": <JSON representation of the type>,
     // }
     bool is_well_known_type_;
     TypeRenderer* well_known_type_render_;
+
+    // Store data before the "@type" field.
+    std::vector<Event> uninterpreted_events_;
   };
 
   // Represents an item in a stack of items used to keep state between
   // ObjectWrier events.
   class LIBPROTOBUF_EXPORT Item : public BaseElement {
    public:
     // Indicates the type of item.
     enum ItemType {
       MESSAGE,  // Simple message
       MAP,      // Proto3 map type
@@ skipping 36 matching lines @@
     ProtoStreamObjectWriter* ow_;
 
     // A writer for Any objects, handles all Any-related nonsense.
     google::protobuf::scoped_ptr<AnyWriter> any_;
 
     // The type of this element, see enum for permissible types.
     ItemType item_type_;
 
     // Set of map keys already seen for the type_. Used to validate incoming
     // messages so no map key appears more than once.
-    hash_set<string> map_keys_;
+    google::protobuf::scoped_ptr<hash_set<string> > map_keys_;
 
     // Conveys whether this Item is a placeholder or not. Placeholder items are
     // pushed to stack to account for special types.
     bool is_placeholder_;
 
     // Conveys whether this Item is a list or not. This is used to send
     // StartList or EndList calls to underlying ObjectWriter.
     bool is_list_;
 
     GOOGLE_DISALLOW_IMPLICIT_CONSTRUCTORS(Item);
   };
 
   ProtoStreamObjectWriter(const TypeInfo* typeinfo,
                           const google::protobuf::Type& type,
                           strings::ByteSink* output, ErrorListener* listener);
 
   // Returns true if the field is a map.
-  bool IsMap(const google::protobuf::Field& field);
+  inline bool IsMap(const google::protobuf::Field& field);
 
   // Returns true if the field is an any.
-  bool IsAny(const google::protobuf::Field& field);
+  inline bool IsAny(const google::protobuf::Field& field);
 
   // Returns true if the field is google.protobuf.Struct.
-  bool IsStruct(const google::protobuf::Field& field);
+  inline bool IsStruct(const google::protobuf::Field& field);
 
   // Returns true if the field is google.protobuf.Value.
-  bool IsStructValue(const google::protobuf::Field& field);
+  inline bool IsStructValue(const google::protobuf::Field& field);
 
   // Returns true if the field is google.protobuf.ListValue.
-  bool IsStructListValue(const google::protobuf::Field& field);
+  inline bool IsStructListValue(const google::protobuf::Field& field);
 
   // Renders google.protobuf.Value in struct.proto. It picks the right oneof
   // type based on value's type.
   static util::Status RenderStructValue(ProtoStreamObjectWriter* ow,
                                           const DataPiece& value);
 
   // Renders google.protobuf.Timestamp value.
   static util::Status RenderTimestamp(ProtoStreamObjectWriter* ow,
                                         const DataPiece& value);
 
@@ skipping 56 matching lines @@
 
   GOOGLE_DISALLOW_IMPLICIT_CONSTRUCTORS(ProtoStreamObjectWriter);
 };
 
 }  // namespace converter
 }  // namespace util
 }  // namespace protobuf
 
 }  // namespace google
 #endif  // GOOGLE_PROTOBUF_UTIL_CONVERTER_PROTOSTREAM_OBJECTWRITER_H__