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[mono.git] / mcs / class / corlib / System.Runtime.Serialization.Formatters.Binary / BinaryCommon.cs
1 // BinaryCommon.cs
2 //
3 // Author:
4 //   Lluis Sanchez Gual (lluis@ideary.com)
5 //
6 // (C) 2003 Lluis Sanchez Gual
7
8 //
9 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
10 //
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
18 // 
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
21 // 
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30 \r
31 using System;\r
32 \r
33 namespace System.Runtime.Serialization.Formatters.Binary\r
34 {\r
35         internal class BinaryCommon\r
36         {\r
37                 // Header present in all binary serializations\r
38                 public static byte[] BinaryHeader = new Byte[] {0,1,0,0,0,255,255,255,255,1,0,0,0,0,0,0,0};\r
39 \r
40                 static Type[] _typeCodesToType;\r
41                 static byte[] _typeCodeMap;\r
42                 public static bool UseReflectionSerialization = false;\r
43 \r
44                 static BinaryCommon()\r
45                 {\r
46                         _typeCodesToType = new Type [19];\r
47                         _typeCodesToType[(int)BinaryTypeCode.Boolean] = typeof (Boolean);\r
48                         _typeCodesToType[(int)BinaryTypeCode.Byte] = typeof (Byte);\r
49                         _typeCodesToType[(int)BinaryTypeCode.Char] = typeof (Char);\r
50                         _typeCodesToType[(int)BinaryTypeCode.TimeSpan] = typeof (TimeSpan);\r
51                         _typeCodesToType[(int)BinaryTypeCode.DateTime] = typeof (DateTime);\r
52                         _typeCodesToType[(int)BinaryTypeCode.Decimal] = typeof (Decimal);\r
53                         _typeCodesToType[(int)BinaryTypeCode.Double] = typeof (Double);\r
54                         _typeCodesToType[(int)BinaryTypeCode.Int16] = typeof (Int16);\r
55                         _typeCodesToType[(int)BinaryTypeCode.Int32] = typeof (Int32);\r
56                         _typeCodesToType[(int)BinaryTypeCode.Int64] = typeof (Int64);\r
57                         _typeCodesToType[(int)BinaryTypeCode.SByte] = typeof (SByte);\r
58                         _typeCodesToType[(int)BinaryTypeCode.Single] = typeof (Single);\r
59                         _typeCodesToType[(int)BinaryTypeCode.UInt16] = typeof (UInt16);\r
60                         _typeCodesToType[(int)BinaryTypeCode.UInt32] = typeof (UInt32);\r
61                         _typeCodesToType[(int)BinaryTypeCode.UInt64] = typeof (UInt64);\r
62                         _typeCodesToType[(int)BinaryTypeCode.Null] = null;\r
63                         _typeCodesToType[(int)BinaryTypeCode.String] = typeof (string);\r
64 \r
65                         _typeCodeMap = new byte[30];\r
66                         _typeCodeMap[(int)TypeCode.Boolean] = (byte) BinaryTypeCode.Boolean;\r
67                         _typeCodeMap[(int)TypeCode.Byte] = (byte) BinaryTypeCode.Byte;\r
68                         _typeCodeMap[(int)TypeCode.Char] = (byte) BinaryTypeCode.Char;\r
69                         _typeCodeMap[(int)TypeCode.DateTime] = (byte) BinaryTypeCode.DateTime;\r
70                         _typeCodeMap[(int)TypeCode.Decimal] = (byte) BinaryTypeCode.Decimal;\r
71                         _typeCodeMap[(int)TypeCode.Double] = (byte) BinaryTypeCode.Double;\r
72                         _typeCodeMap[(int)TypeCode.Int16] = (byte) BinaryTypeCode.Int16;\r
73                         _typeCodeMap[(int)TypeCode.Int32] = (byte) BinaryTypeCode.Int32;\r
74                         _typeCodeMap[(int)TypeCode.Int64] = (byte) BinaryTypeCode.Int64;\r
75                         _typeCodeMap[(int)TypeCode.SByte] = (byte) BinaryTypeCode.SByte;\r
76                         _typeCodeMap[(int)TypeCode.Single] = (byte) BinaryTypeCode.Single;\r
77                         _typeCodeMap[(int)TypeCode.UInt16] = (byte) BinaryTypeCode.UInt16;\r
78                         _typeCodeMap[(int)TypeCode.UInt32] = (byte) BinaryTypeCode.UInt32;\r
79                         _typeCodeMap[(int)TypeCode.UInt64] = (byte) BinaryTypeCode.UInt64;\r
80                         _typeCodeMap[(int)TypeCode.String] = (byte) BinaryTypeCode.String;\r
81 \r
82                         // TimeStamp does not have a TypeCode, so it is managed as a special\r
83                         // case in GetTypeCode()\r
84                         \r
85                         // This environment variable is only for test and benchmarking pourposes.\r
86                         // By default, mono will always use IL generated class serializers.\r
87                         string s = Environment.GetEnvironmentVariable("MONO_REFLECTION_SERIALIZER");\r
88                         if (s == null) s = "no";\r
89                         UseReflectionSerialization = (s != "no");\r
90                 }\r
91 \r
92                 public static bool IsPrimitive (Type type)\r
93                 {\r
94                         return type.IsPrimitive || \r
95                                 type == typeof (DateTime) || \r
96                                 type == typeof (TimeSpan) || \r
97                                 type == typeof (Decimal);\r
98                 }\r
99 \r
100                 public static byte GetTypeCode (Type type)\r
101                 {\r
102                         if (type == typeof(TimeSpan)) return (byte) BinaryTypeCode.TimeSpan;\r
103                         else return _typeCodeMap [(int)Type.GetTypeCode(type)];\r
104                 }\r
105 \r
106                 public static Type GetTypeFromCode (int code)\r
107                 {\r
108                         return _typeCodesToType [code];\r
109                 }\r
110         }\r
111 \r
112         internal enum BinaryElement : byte\r
113         {
114                 Header = 0,
115                 RefTypeObject = 1,
116                 _Unknown1 = 2,
117                 _Unknown2 = 3,
118                 RuntimeObject = 4,
119                 ExternalObject = 5,
120                 String = 6,
121                 GenericArray = 7,
122                 BoxedPrimitiveTypeValue = 8,
123                 ObjectReference = 9,
124                 NullValue = 10,
125                 End = 11,
126                 Assembly = 12,
127                 ArrayFiller8b = 13,
128                 ArrayFiller32b = 14,
129                 ArrayOfPrimitiveType = 15,
130                 ArrayOfObject = 16,
131                 ArrayOfString = 17,
132                 Method = 18,
133                 _Unknown4 = 19,
134                 _Unknown5 = 20,
135                 MethodCall = 21,
136                 MethodResponse = 22
137         }
138
139         internal enum TypeTag : byte
140         {
141                 PrimitiveType = 0,
142                 String = 1,
143                 ObjectType = 2,
144                 RuntimeType = 3,
145                 GenericType = 4,
146                 ArrayOfObject = 5,
147                 ArrayOfString = 6,
148                 ArrayOfPrimitiveType = 7
149         }
150
151         internal enum ArrayStructure : byte
152         {
153                 SingleDimensional = 0,
154                 Jagged = 1,
155                 MultiDimensional = 2
156         }\r
157 \r
158         internal enum MethodFlags : byte
159         {
160                 NoArguments = 1,
161                 PrimitiveArguments = 2,
162                 ArgumentsInSimpleArray = 4,
163                 ArgumentsInMultiArray = 8,
164                 ExcludeLogicalCallContext = 16,
165                 IncludesLogicalCallContext = 64,
166                 IncludesSignature = 128,
167
168                 FormatMask = 15,
169                 NeedsInfoArrayMask = 4 + 8 + 64 + 128
170         }\r
171 \r
172         internal enum ReturnTypeTag : byte\r
173         {\r
174                 Null = 2,\r
175                 PrimitiveType = 8,\r
176                 ObjectType = 16,\r
177                 Exception = 32\r
178         }\r
179 \r
180         enum BinaryTypeCode : byte\r
181         {\r
182                 Boolean = 1,\r
183                 Byte = 2,\r
184                 Char = 3,\r
185                 Decimal = 5,\r
186                 Double = 6,\r
187                 Int16 = 7,\r
188                 Int32 = 8,\r
189                 Int64 = 9,\r
190                 SByte = 10,\r
191                 Single = 11,\r
192                 TimeSpan = 12,\r
193                 DateTime = 13,\r
194                 UInt16 = 14,\r
195                 UInt32 = 15,\r
196                 UInt64 = 16,\r
197                 Null = 17,\r
198                 String = 18\r
199         }\r
200 \r
201 }\r