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
|
#pragma once
#include "cplt_fwd.hpp"
#include <cstddef>
#include <cstdint>
#include <span>
class SerializationAdapter
{
public:
static constexpr bool IsSerializer()
{
return true;
}
public:
DataStream* Stream;
template <class T>
void Bytes(size_t byteCount, T* buffer) const
{
Stream->WriteBytes(byteCount, buffer);
}
template <class T>
void Value(T t) const
{
Stream->Write(t);
}
template <class T>
void Object(T& obj) const
{
Stream->WriteObject(obj);
}
template <class TObject, class TAdapter>
void ObjectAdapted(TObject& obj, TAdapter adapter) const
{
Stream->WriteObjectAdapted(obj, adapter);
}
};
class DeserializationAdapter
{
public:
static constexpr bool IsSerializer()
{
return false;
}
public:
DataStream* Stream;
template <class T>
void Bytes(size_t byteCount, T* buffer) const
{
Stream->WriteBytes(byteCount, buffer);
}
template <class T>
void Value(T& t) const
{
Stream->Read(t);
}
template <class T>
void Object(T& obj) const
{
Stream->ReadObject(obj);
}
template <class TObject, class TAdapter>
void ObjectAdapted(TObject& obj, TAdapter& adapter) const
{
Stream->ReadObjectAdapted(obj, adapter);
}
};
namespace DataStreamTraits {
template <class T>
concept HasMember = requires(T t)
{
t.ReadFromDataStream(std::declval<DataStream>());
t.WriteToDataStream(std::declval<DataStream>());
};
template <class T>
concept HasIOAdapterMember = requires(T t)
{
t.OperateIOAdapter(std::declval<SerializationAdapter>());
t.OperateIOAdapter(std::declval<DeserializationAdapter>());
};
} // namespace DataStreamTraits
class DataStream
{
public:
enum Endianness
{
BigEndian,
LittleEndian,
};
private:
Endianness mEndian;
public:
DataStream();
~DataStream();
Endianness GetEndianness() const;
void SetEndianness(Endianness endianness);
void ReadBytes(size_t byteCount, std::byte* buffer);
void ReadBytes(size_t byteCount, char* buffer);
void ReadBytes(size_t byteCount, signed char* buffer);
void ReadBytes(size_t byteCount, unsigned char* buffer);
template <class TInserter>
void ReadBytes(size_t byteCount, TInserter&& inserter)
{
for (size_t i = 0; i < byteCount; ++i) {
uint8_t byte;
Read(byte);
inserter = byte;
}
}
void WriteBytes(size_t byteCount, const std::byte* buffer);
void WriteBytes(size_t byteCount, const char* buffer);
void WriteBytes(size_t byteCount, const signed char* buffer);
void WriteBytes(size_t byteCount, const unsigned char* buffer);
template <class TIterator>
void WriteBytes(TIterator&& begin, TIterator&& end)
{
for (; begin != end; ++begin) {
uint8_t byte = *begin;
Write(byte);
}
}
void Write(int8_t n);
void Write(int16_t n);
void Write(int32_t n);
void Write(int64_t n);
void Read(int8_t& n);
void Read(int16_t& n);
void Read(int32_t& n);
void Read(int64_t& n);
void Write(uint8_t n);
void Write(uint16_t n);
void Write(uint32_t n);
void Write(uint64_t n);
void Read(uint8_t& n);
void Read(uint16_t& n);
void Read(uint32_t& n);
void Read(uint64_t& n);
void Write(float n);
void Write(double n);
void Read(float& n);
void Read(double& n);
template <class TObject>
void ReadObject(TObject& obj)
{
using namespace DataStreamTraits;
if constexpr (requires(TObject t) { t.ReadFromDataStream(std::declval<DataStream>()); }) {
obj.ReadFromDataStream(*this);
} else if constexpr (requires(TObject t) { t.OperateIOAdapter(std::declval<DeserializationAdapter>()); }) {
DeserializationAdapter adapter{ this };
obj.OperateIOAdapter(adapter);
} else {
static_assert(false && sizeof(TObject), "This type does not have integration with DataStream.");
}
}
template <class TObject, class TAdapter>
void ReadObjectAdapted(TObject& obj, TAdapter& adapter)
{
adapter.ReadFromDataStream(*this, obj);
}
template <class TObject>
void WriteObject(TObject& obj)
{
using namespace DataStreamTraits;
if constexpr (requires(TObject t) { t.WriteToDataStream(std::declval<DataStream>()); }) {
obj.WriteToDataStream(*this);
} else if constexpr (requires(TObject t) { t.OperateIOAdapter(std::declval<SerializationAdapter>()); }) {
SerializationAdapter adapter{ this };
obj.OperateIOAdapter(adapter);
} else {
static_assert(false && sizeof(TObject), "This type does not have integration with DataStream.");
}
}
template <class TObject, class TAdapter>
void WriteObjectAdapted(TObject& obj, TAdapter& adapter)
{
adapter.WriteToDataStream(*this, obj);
}
};
|
