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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 <memory>
- #include <string>
- #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<std::string> 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<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_;
- };
- #endif // BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
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