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Side by Side Diff: base/json/json_string_value_serializer.h

Issue 1647803004: Move base to DEPS (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 4 years, 10 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
6 #define BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
7
8 #include <string>
9
10 #include "base/base_export.h"
11 #include "base/basictypes.h"
12 #include "base/files/file_path.h"
13 #include "base/strings/string_piece.h"
14 #include "base/values.h"
15
16 class BASE_EXPORT JSONStringValueSerializer : public base::ValueSerializer {
17 public:
18 // |json_string| is the string that will be the destination of the
19 // serialization. The caller of the constructor retains ownership of the
20 // string. |json_string| must not be null.
21 explicit JSONStringValueSerializer(std::string* json_string);
22
23 ~JSONStringValueSerializer() override;
24
25 // Attempt to serialize the data structure represented by Value into
26 // JSON. If the return value is true, the result will have been written
27 // into the string passed into the constructor.
28 bool Serialize(const base::Value& root) override;
29
30 // Equivalent to Serialize(root) except binary values are omitted from the
31 // output.
32 bool SerializeAndOmitBinaryValues(const base::Value& root);
33
34 void set_pretty_print(bool new_value) { pretty_print_ = new_value; }
35 bool pretty_print() { return pretty_print_; }
36
37 private:
38 bool SerializeInternal(const base::Value& root, bool omit_binary_values);
39
40 // Owned by the caller of the constructor.
41 std::string* json_string_;
42 bool pretty_print_; // If true, serialization will span multiple lines.
43
44 DISALLOW_COPY_AND_ASSIGN(JSONStringValueSerializer);
45 };
46
47 class BASE_EXPORT JSONStringValueDeserializer : public base::ValueDeserializer {
48 public:
49 // This retains a reference to the contents of |json_string|, so the data
50 // must outlive the JSONStringValueDeserializer.
51 explicit JSONStringValueDeserializer(const base::StringPiece& json_string);
52
53 ~JSONStringValueDeserializer() override;
54
55 // Attempt to deserialize the data structure encoded in the string passed
56 // in to the constructor into a structure of Value objects. If the return
57 // value is null, and if |error_code| is non-null, |error_code| will
58 // contain an integer error code (a JsonParseError in this case).
59 // If |error_message| is non-null, it will be filled in with a formatted
60 // error message including the location of the error if appropriate.
61 // The caller takes ownership of the returned value.
62 base::Value* Deserialize(int* error_code,
63 std::string* error_message) override;
64
65 void set_allow_trailing_comma(bool new_value) {
66 allow_trailing_comma_ = new_value;
67 }
68
69 private:
70 // Data is owned by the caller of the constructor.
71 base::StringPiece json_string_;
72 // If true, deserialization will allow trailing commas.
73 bool allow_trailing_comma_;
74
75 DISALLOW_COPY_AND_ASSIGN(JSONStringValueDeserializer);
76 };
77
78 #endif // BASE_JSON_JSON_STRING_VALUE_SERIALIZER_H_
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