1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
// 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/basictypes.h"
#include "base/file_path.h"
#include "base/values.h"
class BASE_EXPORT JSONStringValueSerializer : public base::ValueSerializer {
public:
// 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),
initialized_with_const_string_(false),
pretty_print_(false),
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)),
initialized_with_const_string_(true),
pretty_print_(false),
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;
}
private:
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_;
DISALLOW_COPY_AND_ASSIGN(JSONStringValueSerializer);
};
#endif // BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
|
