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76 lines
2.9 KiB
C++
76 lines
2.9 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
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#define BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
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#include <string>
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#include "base/base_export.h"
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#include "base/files/file_path.h"
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#include "base/macros.h"
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#include "base/strings/string_piece.h"
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#include "base/values.h"
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class BASE_EXPORT JSONStringValueSerializer : public base::ValueSerializer {
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public:
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// |json_string| is the string that will be the destination of the
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// serialization. The caller of the constructor retains ownership of the
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// string. |json_string| must not be null.
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explicit JSONStringValueSerializer(std::string* json_string);
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~JSONStringValueSerializer() override;
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// Attempt to serialize the data structure represented by Value into
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// JSON. If the return value is true, the result will have been written
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// into the string passed into the constructor.
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bool Serialize(const base::Value& root) override;
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// Equivalent to Serialize(root) except binary values are omitted from the
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// output.
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bool SerializeAndOmitBinaryValues(const base::Value& root);
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void set_pretty_print(bool new_value) { pretty_print_ = new_value; }
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bool pretty_print() { return pretty_print_; }
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private:
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bool SerializeInternal(const base::Value& root, bool omit_binary_values);
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// Owned by the caller of the constructor.
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std::string* json_string_;
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bool pretty_print_; // If true, serialization will span multiple lines.
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DISALLOW_COPY_AND_ASSIGN(JSONStringValueSerializer);
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};
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class BASE_EXPORT JSONStringValueDeserializer : public base::ValueDeserializer {
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public:
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// This retains a reference to the contents of |json_string|, so the data
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// must outlive the JSONStringValueDeserializer. |options| is a bitmask of
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// JSONParserOptions.
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explicit JSONStringValueDeserializer(const base::StringPiece& json_string,
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int options = 0);
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~JSONStringValueDeserializer() override;
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// Attempt to deserialize the data structure encoded in the string passed
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// in to the constructor into a structure of Value objects. If the return
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// value is null, and if |error_code| is non-null, |error_code| will
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// contain an integer error code (a JsonParseError in this case).
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// If |error_message| is non-null, it will be filled in with a formatted
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// error message including the location of the error if appropriate.
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// The caller takes ownership of the returned value.
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std::unique_ptr<base::Value> Deserialize(int* error_code,
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std::string* error_message) override;
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private:
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// Data is owned by the caller of the constructor.
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base::StringPiece json_string_;
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const int options_;
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DISALLOW_COPY_AND_ASSIGN(JSONStringValueDeserializer);
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};
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#endif // BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
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