84 lines
3.1 KiB
C
84 lines
3.1 KiB
C
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// Copyright 2012 The Chromium Authors
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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 <memory>
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#include <string>
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#include "base/base_export.h"
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#include "base/json/json_reader.h"
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#include "base/memory/raw_ptr.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(const JSONStringValueSerializer&) = delete;
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JSONStringValueSerializer& operator=(const JSONStringValueSerializer&) =
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delete;
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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(base::ValueView 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(base::ValueView 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(base::ValueView root, bool omit_binary_values);
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// Owned by the caller of the constructor.
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raw_ptr<std::string> json_string_;
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bool pretty_print_; // If true, serialization will span multiple lines.
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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(
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const base::StringPiece& json_string,
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int options = base::JSON_PARSE_CHROMIUM_EXTENSIONS);
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JSONStringValueDeserializer(const JSONStringValueDeserializer&) = delete;
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JSONStringValueDeserializer& operator=(const JSONStringValueDeserializer&) =
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delete;
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~JSONStringValueDeserializer() override;
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// Attempts to deserialize |json_string_| into a structure of Value objects.
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// If the return value is null, then
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// (1) |error_code| will be filled with an integer error code
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// (base::ValueDeserializer::kErrorCodeInvalidFormat) if a non-null
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// |error_code| was given.
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// (2) |error_message| will be filled with a formatted error message,
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// including the location of the error (if appropriate), if a non-null
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// |error_message| was given.
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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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};
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#endif // BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
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