File: json_string_value_serializer.h

package info (click to toggle)
chromium 139.0.7258.127-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 6,122,156 kB
  • sloc: cpp: 35,100,771; ansic: 7,163,530; javascript: 4,103,002; python: 1,436,920; asm: 946,517; xml: 746,709; pascal: 187,653; perl: 88,691; sh: 88,436; objc: 79,953; sql: 51,488; cs: 44,583; fortran: 24,137; makefile: 22,147; tcl: 15,277; php: 13,980; yacc: 8,984; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (83 lines) | stat: -rw-r--r-- 3,198 bytes parent folder | download | duplicates (7)
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
78
79
80
81
82
83
// Copyright 2012 The Chromium Authors
// 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 <string_view>

#include "base/base_export.h"
#include "base/json/json_reader.h"
#include "base/memory/raw_ptr.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(
      std::string_view 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.
  std::string_view json_string_;
  const int options_;
};

#endif  // BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_