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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.
#ifndef BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
#define BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
#include <string>
#include "base/base_export.h"
#include "base/files/file_path.h"
#include "base/macros.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() 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(const base::Value& root) override;
// Equivalent to Serialize(root) except binary values are omitted from the
// output.
bool SerializeAndOmitBinaryValues(const base::Value& root);
void set_pretty_print(bool new_value) { pretty_print_ = new_value; }
bool pretty_print() { return pretty_print_; }
private:
bool SerializeInternal(const base::Value& root, bool omit_binary_values);
// Owned by the caller of the constructor.
std::string* json_string_;
bool pretty_print_; // If true, serialization will span multiple lines.
DISALLOW_COPY_AND_ASSIGN(JSONStringValueSerializer);
};
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 = 0);
~JSONStringValueDeserializer() override;
// 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 (a JsonParseError in this case).
// 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.
std::unique_ptr<base::Value> 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_;
DISALLOW_COPY_AND_ASSIGN(JSONStringValueDeserializer);
};
#endif // BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
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