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// 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.
#include <string>
#include "base/base_export.h"
#include "base/basictypes.h"
#include "base/file_path.h"
#include "base/values.h"
class BASE_EXPORT JSONStringValueSerializer : public base::ValueSerializer {
// json_string is the string that will be source of the deserialization
// or the destination of the serialization. The caller of the constructor
// retains ownership of the string.
explicit JSONStringValueSerializer(std::string* json_string)
: json_string_(json_string),
allow_trailing_comma_(false) {
// This version allows initialization with a const string reference for
// deserialization only.
explicit JSONStringValueSerializer(const std::string& json_string)
: json_string_(&const_cast<std::string&>(json_string)),
allow_trailing_comma_(false) {
virtual ~JSONStringValueSerializer();
// 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.
virtual bool Serialize(const Value& root) override;
// Equivalent to Serialize(root) except binary values are omitted from the
// output.
bool SerializeAndOmitBinaryValues(const Value& root);
// Attempt to deserialize the data structure encoded in the string passed
// in to the constructor into a structure of Value objects. If the return
// value is NULL, and if |error_code| is non-null, |error_code| will
// contain an integer error code (either JsonFileError or JsonParseError).
// If |error_message| is non-null, it will be filled in with a formatted
// error message including the location of the error if appropriate.
// The caller takes ownership of the returned value.
virtual Value* Deserialize(int* error_code,
std::string* error_message) override;
void set_pretty_print(bool new_value) { pretty_print_ = new_value; }
bool pretty_print() { return pretty_print_; }
void set_allow_trailing_comma(bool new_value) {
allow_trailing_comma_ = new_value;
bool SerializeInternal(const Value& root, bool omit_binary_values);
std::string* json_string_;
bool initialized_with_const_string_;
bool pretty_print_; // If true, serialization will span multiple lines.
// If true, deserialization will allow trailing commas.
bool allow_trailing_comma_;