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 \r
   8 using System;\r
   9 \r
  10 namespace System.Runtime.Serialization.Formatters.Binary\r
  11 {\r
  12         internal class BinaryCommon\r
  13         {\r
  14                 // Header present in all binary serializations\r
  15                 public static byte[] BinaryHeader = new Byte[] {0,1,0,0,0,255,255,255,255,1,0,0,0,0,0,0,0};\r
  16 \r
  17                 static Type[] _typeCodesToType;\r
  18                 static byte[] _typeCodeMap;\r
  19 \r
  20                 static BinaryCommon()\r
  21                 {\r
  22                         _typeCodesToType = new Type [19];\r
  23                         _typeCodesToType[(int)BinaryTypeCode.Boolean] = typeof (Boolean);\r
  24                         _typeCodesToType[(int)BinaryTypeCode.Byte] = typeof (Byte);\r
  25                         _typeCodesToType[(int)BinaryTypeCode.Char] = typeof (Char);\r
  26                         _typeCodesToType[(int)BinaryTypeCode.DateTime] = typeof (DateTime);\r
  27                         _typeCodesToType[(int)BinaryTypeCode.Decimal] = typeof (Decimal);\r
  28                         _typeCodesToType[(int)BinaryTypeCode.Double] = typeof (Double);\r
  29                         _typeCodesToType[(int)BinaryTypeCode.Int16] = typeof (Int16);\r
  30                         _typeCodesToType[(int)BinaryTypeCode.Int32] = typeof (Int32);\r
  31                         _typeCodesToType[(int)BinaryTypeCode.Int64] = typeof (Int64);\r
  32                         _typeCodesToType[(int)BinaryTypeCode.SByte] = typeof (SByte);\r
  33                         _typeCodesToType[(int)BinaryTypeCode.Single] = typeof (Single);\r
  34                         _typeCodesToType[(int)BinaryTypeCode.UInt16] = typeof (UInt16);\r
  35                         _typeCodesToType[(int)BinaryTypeCode.UInt32] = typeof (UInt32);\r
  36                         _typeCodesToType[(int)BinaryTypeCode.UInt64] = typeof (UInt64);\r
  37                         _typeCodesToType[(int)BinaryTypeCode.Null] = null;\r
  38                         _typeCodesToType[(int)BinaryTypeCode.String] = typeof (string);\r
  39 \r
  40                         _typeCodeMap = new byte[30];\r
  41                         _typeCodeMap[(int)TypeCode.Boolean] = (byte) BinaryTypeCode.Boolean;\r
  42                         _typeCodeMap[(int)TypeCode.Byte] = (byte) BinaryTypeCode.Byte;\r
  43                         _typeCodeMap[(int)TypeCode.Char] = (byte) BinaryTypeCode.Char;\r
  44                         _typeCodeMap[(int)TypeCode.DateTime] = (byte) BinaryTypeCode.DateTime;\r
  45                         _typeCodeMap[(int)TypeCode.Decimal] = (byte) BinaryTypeCode.Decimal;\r
  46                         _typeCodeMap[(int)TypeCode.Double] = (byte) BinaryTypeCode.Double;\r
  47                         _typeCodeMap[(int)TypeCode.Int16] = (byte) BinaryTypeCode.Int16;\r
  48                         _typeCodeMap[(int)TypeCode.Int32] = (byte) BinaryTypeCode.Int32;\r
  49                         _typeCodeMap[(int)TypeCode.Int64] = (byte) BinaryTypeCode.Int64;\r
  50                         _typeCodeMap[(int)TypeCode.SByte] = (byte) BinaryTypeCode.SByte;\r
  51                         _typeCodeMap[(int)TypeCode.Single] = (byte) BinaryTypeCode.Single;\r
  52                         _typeCodeMap[(int)TypeCode.UInt16] = (byte) BinaryTypeCode.UInt16;\r
  53                         _typeCodeMap[(int)TypeCode.UInt32] = (byte) BinaryTypeCode.UInt32;\r
  54                         _typeCodeMap[(int)TypeCode.UInt64] = (byte) BinaryTypeCode.UInt64;\r
  55                         _typeCodeMap[(int)TypeCode.String] = (byte) BinaryTypeCode.String;\r
  56                 }\r
  57 \r
  58                 public static bool IsPrimitive (Type type)\r
  59                 {\r
  60                         return type.IsPrimitive || type == typeof (DateTime) || type == typeof (Decimal);\r
  61                 }\r
  62 \r
  63                 public static byte GetTypeCode (Type type)\r
  64                 {\r
  65                         return _typeCodeMap [(int)Type.GetTypeCode(type)];\r
  66                 }\r
  67 \r
  68                 public static Type GetTypeFromCode (int code)\r
  69                 {\r
  70                         return _typeCodesToType [code];\r
  71                 }\r
  72         }\r
  73 \r
  74         internal enum BinaryElement : byte\r
  75         {
  76                 Header = 0,
  77                 RefTypeObject = 1,
  78                 _Unknown1 = 2,
  79                 _Unknown2 = 3,
  80                 RuntimeObject = 4,
  81                 ExternalObject = 5,
  82                 String = 6,
  83                 GenericArray = 7,
  84                 BoxedPrimitiveTypeValue = 8,
  85                 ObjectReference = 9,
  86                 NullValue = 10,
  87                 End = 11,
  88                 Assembly = 12,
  89                 ArrayFiller8b = 13,
  90                 ArrayFiller32b = 14,
  91                 ArrayOfPrimitiveType = 15,
  92                 ArrayOfObject = 16,
  93                 ArrayOfString = 17,
  94                 Method = 18,
  95                 _Unknown4 = 19,
  96                 _Unknown5 = 20,
  97                 MethodCall = 21,
  98                 MethodResponse = 22
  99         }
 100
 101         internal enum TypeTag : byte
 102         {
 103                 PrimitiveType = 0,
 104                 String = 1,
 105                 ObjectType = 2,
 106                 RuntimeType = 3,
 107                 GenericType = 4,
 108                 ArrayOfObject = 5,
 109                 ArrayOfString = 6,
 110                 ArrayOfPrimitiveType = 7
 111         }
 112
 113         internal enum ArrayStructure : byte
 114         {
 115                 SingleDimensional = 0,
 116                 Jagged = 1,
 117                 MultiDimensional = 2
 118         }\r
 119 \r
 120         internal enum MethodFlags : byte
 121         {
 122                 NoArguments = 1,
 123                 PrimitiveArguments = 2,
 124                 ArgumentsInSimpleArray = 4,
 125                 ArgumentsInMultiArray = 8,
 126                 ExcludeLogicalCallContext = 16,
 127                 IncludesLogicalCallContext = 64,
 128                 IncludesSignature = 128,
 129
 130                 FormatMask = 15,
 131                 NeedsInfoArrayMask = 4 + 8 + 64 + 128
 132         }\r
 133 \r
 134         internal enum ReturnTypeTag : byte\r
 135         {\r
 136                 Null = 2,\r
 137                 PrimitiveType = 8,\r
 138                 ObjectType = 16,\r
 139                 Exception = 32\r
 140         }\r
 141 \r
 142         enum BinaryTypeCode : byte\r
 143         {\r
 144                 Boolean = 1,\r
 145                 Byte = 2,\r
 146                 Char = 3,\r
 147                 Decimal = 5,\r
 148                 Double = 6,\r
 149                 Int16 = 7,\r
 150                 Int32 = 8,\r
 151                 Int64 = 9,\r
 152                 SByte = 10,\r
 153                 Single = 11,\r
 154                 DateTime = 13,\r
 155                 UInt16 = 14,\r
 156                 UInt32 = 15,\r
 157                 UInt64 = 16,\r
 158                 Null = 17,\r
 159                 String = 18\r
 160         }\r
 161 \r
 162 }\r