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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/*
* Copyright (C) 2013 University of Washington. All rights reserved.
* Copyright (C) 2014 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef EncodedValue_h
#define EncodedValue_h
#if ENABLE(WEB_REPLAY)
#include "InspectorValues.h"
#include <wtf/Forward.h>
#include <wtf/Vector.h>
namespace JSC {
class NondeterministicInputBase;
template<typename T> struct EncodingTraits;
class EncodedValue final {
public:
explicit EncodedValue(RefPtr<Inspector::InspectorValue>&& value)
: m_value(value) { }
EncodedValue()
: m_value(nullptr) { }
static EncodedValue createObject()
{
return EncodedValue(Inspector::InspectorObject::create());
}
static EncodedValue createArray()
{
return EncodedValue(Inspector::InspectorArray::create());
}
static EncodedValue createString(const String& value)
{
return EncodedValue(Inspector::InspectorString::create(value));
}
static EncodedValue createString(const char* value)
{
return EncodedValue(Inspector::InspectorString::create(value));
}
template<typename T>
void put(const String&, const typename EncodingTraits<T>::DecodedType&);
template<typename T>
void append(const typename EncodingTraits<T>::DecodedType&);
template<typename T> bool get(const String&, typename EncodingTraits<T>::DecodedType&);
template<typename T> bool get(const String&, std::unique_ptr<typename EncodingTraits<T>::DecodedType>&);
template<typename T> T convertTo();
JS_EXPORT_PRIVATE RefPtr<Inspector::InspectorObject> asObject();
JS_EXPORT_PRIVATE RefPtr<Inspector::InspectorArray> asArray();
private:
RefPtr<Inspector::InspectorValue> m_value;
};
template<> JS_EXPORT_PRIVATE bool EncodedValue::convertTo<bool>();
template<> JS_EXPORT_PRIVATE double EncodedValue::convertTo<double>();
template<> JS_EXPORT_PRIVATE float EncodedValue::convertTo<float>();
template<> JS_EXPORT_PRIVATE int32_t EncodedValue::convertTo<int32_t>();
template<> JS_EXPORT_PRIVATE int64_t EncodedValue::convertTo<int64_t>();
template<> JS_EXPORT_PRIVATE uint32_t EncodedValue::convertTo<uint32_t>();
template<> JS_EXPORT_PRIVATE uint64_t EncodedValue::convertTo<uint64_t>();
template<> JS_EXPORT_PRIVATE String EncodedValue::convertTo<String>();
template<typename T>
struct EncodingTraits {
typedef T DecodedType;
static EncodedValue encodeValue(const DecodedType&);
static bool decodeValue(EncodedValue&, DecodedType&);
static bool decodeValue(EncodedValue&, std::unique_ptr<DecodedType>&);
};
template<typename T, size_t inlineCapacity, typename OverflowHandler>
struct EncodingTraits<Vector<T, inlineCapacity, OverflowHandler>> {
typedef Vector<typename EncodingTraits<T>::DecodedType, inlineCapacity, OverflowHandler> DecodedType;
static EncodedValue encodeValue(const DecodedType& vectorOfValues)
{
EncodedValue encodedVector = EncodedValue::createArray();
for (const typename EncodingTraits<T>::DecodedType& value : vectorOfValues)
encodedVector.append<T>(value);
return encodedVector;
}
static bool decodeValue(EncodedValue& encodedVector, DecodedType& decodedValue)
{
RefPtr<Inspector::InspectorArray> inspectorArray = encodedVector.asArray();
decodedValue = Vector<typename EncodingTraits<T>::DecodedType, inlineCapacity, OverflowHandler>(inspectorArray->length());
for (size_t i = 0; i < inspectorArray->length(); ++i) {
EncodedValue encodedElement(inspectorArray->get(i));
if (!EncodingTraits<T>::decodeValue(encodedElement, decodedValue.at(i)))
return false;
}
return true;
}
};
template<> struct EncodingTraits<EncodedValue> {
typedef EncodedValue DecodedType;
// We should never attempt to decode or encode an encoded value,
// so encodeValue and decodeValue are intentionally omitted here.
};
// Specialize byte vectors to use base64 encoding.
template<> struct EncodingTraits<Vector<char>> {
typedef Vector<char> DecodedType;
static EncodedValue encodeValue(const DecodedType&);
static bool decodeValue(EncodedValue&, DecodedType&);
};
template<typename T>
struct ScalarEncodingTraits {
typedef T DecodedType;
static JS_EXPORT_PRIVATE EncodedValue encodeValue(const DecodedType& decodedValue);
static bool decodeValue(EncodedValue& encodedValue, DecodedType& decodedValue)
{
decodedValue = encodedValue.convertTo<DecodedType>();
return true;
}
};
template<> struct EncodingTraits<bool> : public ScalarEncodingTraits<bool> { };
template<> struct EncodingTraits<double> : public ScalarEncodingTraits<double> { };
template<> struct EncodingTraits<float> : public ScalarEncodingTraits<float> { };
template<> struct EncodingTraits<int32_t> : public ScalarEncodingTraits<int32_t> { };
template<> struct EncodingTraits<int64_t> : public ScalarEncodingTraits<int64_t> { };
template<> struct EncodingTraits<uint32_t> : public ScalarEncodingTraits<uint32_t> { };
template<> struct EncodingTraits<uint64_t> : public ScalarEncodingTraits<uint64_t> { };
template<> struct EncodingTraits<String> : public ScalarEncodingTraits<String> {
static EncodedValue encodeValue(const String& value)
{
return EncodedValue::createString(value);
}
};
// Base cases for loading and storing values.
template<> JS_EXPORT_PRIVATE
void EncodedValue::put<EncodedValue>(const String& key, const typename EncodingTraits<EncodedValue>::DecodedType&);
template<> JS_EXPORT_PRIVATE
void EncodedValue::append<EncodedValue>(const typename EncodingTraits<EncodedValue>::DecodedType&);
template<> JS_EXPORT_PRIVATE
bool EncodedValue::get<EncodedValue>(const String& key, typename EncodingTraits<EncodedValue>::DecodedType&);
// Load and store types with an accompanying EncodingTraits implementation.
template<typename T>
void EncodedValue::put(const String& key, const typename EncodingTraits<T>::DecodedType& value)
{
EncodedValue encodedValue = EncodingTraits<T>::encodeValue(value);
put<EncodedValue>(key, encodedValue);
}
template<typename T>
void EncodedValue::append(const typename EncodingTraits<T>::DecodedType& value)
{
EncodedValue encodedValue = EncodingTraits<T>::encodeValue(value);
append<EncodedValue>(encodedValue);
}
template<typename T>
bool EncodedValue::get(const String& key, typename EncodingTraits<T>::DecodedType& decodedValue)
{
EncodedValue encodedValue;
if (!get<EncodedValue>(key, encodedValue))
return false;
return EncodingTraits<T>::decodeValue(encodedValue, decodedValue);
}
template<typename T>
bool EncodedValue::get(const String& key, std::unique_ptr<typename EncodingTraits<T>::DecodedType>& decodedValue)
{
EncodedValue encodedValue;
if (!get<EncodedValue>(key, encodedValue))
return false;
return EncodingTraits<T>::decodeValue(encodedValue, decodedValue);
}
} // namespace JSC
using JSC::EncodedValue;
using JSC::EncodingTraits;
#endif // ENABLE(WEB_REPLAY)
#endif // EncodedValue_h
|
