// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_ #define BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_ #include #include #include "base/base_export.h" #include "base/json/json_reader.h" #include "base/memory/raw_ptr.h" #include "base/strings/string_piece.h" #include "base/values.h" class BASE_EXPORT JSONStringValueSerializer : public base::ValueSerializer { public: // |json_string| is the string that will be the destination of the // serialization. The caller of the constructor retains ownership of the // string. |json_string| must not be null. explicit JSONStringValueSerializer(std::string* json_string); JSONStringValueSerializer(const JSONStringValueSerializer&) = delete; JSONStringValueSerializer& operator=(const JSONStringValueSerializer&) = delete; ~JSONStringValueSerializer() override; // Attempt to serialize the data structure represented by Value into // JSON. If the return value is true, the result will have been written // into the string passed into the constructor. bool Serialize(base::ValueView root) override; // Equivalent to Serialize(root) except binary values are omitted from the // output. bool SerializeAndOmitBinaryValues(base::ValueView root); void set_pretty_print(bool new_value) { pretty_print_ = new_value; } bool pretty_print() { return pretty_print_; } private: bool SerializeInternal(base::ValueView root, bool omit_binary_values); // Owned by the caller of the constructor. raw_ptr json_string_; bool pretty_print_; // If true, serialization will span multiple lines. }; class BASE_EXPORT JSONStringValueDeserializer : public base::ValueDeserializer { public: // This retains a reference to the contents of |json_string|, so the data // must outlive the JSONStringValueDeserializer. |options| is a bitmask of // JSONParserOptions. explicit JSONStringValueDeserializer( const base::StringPiece& json_string, int options = base::JSON_PARSE_CHROMIUM_EXTENSIONS); JSONStringValueDeserializer(const JSONStringValueDeserializer&) = delete; JSONStringValueDeserializer& operator=(const JSONStringValueDeserializer&) = delete; ~JSONStringValueDeserializer() override; // Attempts to deserialize |json_string_| into a structure of Value objects. // If the return value is null, then // (1) |error_code| will be filled with an integer error code // (base::ValueDeserializer::kErrorCodeInvalidFormat) if a non-null // |error_code| was given. // (2) |error_message| will be filled with a formatted error message, // including the location of the error (if appropriate), if a non-null // |error_message| was given. // The caller takes ownership of the returned value. std::unique_ptr Deserialize(int* error_code, std::string* error_message) override; private: // Data is owned by the caller of the constructor. base::StringPiece json_string_; const int options_; }; #endif // BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_