public void Emit(FieldInfo field, ref EmitHelper serializerEmit, ref EmitHelper deserializeEmit)
{
var writeIntMethod = typeof(BinaryWriter).GetMethod("Write", new[] { typeof(int) });
var writeStringMethod = typeof(BinaryWriter).GetMethod("Write", new[] { typeof(string) });
var arrayNotNullLabel = serializerEmit.DefineLabel();
var arrayNullLabel = serializerEmit.DefineLabel();
var whileLabel = serializerEmit.DefineLabel();
var endWhileLabel = serializerEmit.DefineLabel();
var elementType = field.FieldType.GetElementType();
var iLocal = serializerEmit.DeclareLocal(typeof(int));
var lenLocal = serializerEmit.DeclareLocal(typeof(int));
serializerEmit
.ldarg_0
.ldfld(field)
.brtrue(arrayNotNullLabel)
.ldarg_1
.ldc_i4_m1
.call(writeIntMethod)
.br(arrayNullLabel);
serializerEmit
.MarkLabel(arrayNotNullLabel)
.ldc_i4_0
.stloc(iLocal)
.ldarg_0
.ldfld(field)
.ldlen
.conv_i4
.stloc(lenLocal)
.ldarg_1
.ldloc(lenLocal)
.call(writeIntMethod)
.br(endWhileLabel)
.MarkLabel(whileLabel);
#region string
if (elementType == typeof(string))
{
var strElement = serializerEmit.DeclareLocal(typeof(string));
var strElementNullLbl = serializerEmit.DefineLabel();
var strElementNotNullLbl = serializerEmit.DefineLabel();
serializerEmit
.ldarg_0
.ldfld(field)
.ldloc(iLocal)
.ldelem_ref
.stloc(strElement)
.ldloc(strElement)
.brtrue(strElementNotNullLbl)
.ldarg_1
.ldc_i4_m1
.call(writeIntMethod)
.br(strElementNullLbl)
.MarkLabel(strElementNotNullLbl)
.ldarg_1
.ldloc(strElement)
.call(typeof(string).GetMethod("get_Length"))
.call(writeIntMethod)
.ldarg_1
.ldloc(strElement)
.call(writeStringMethod)
.MarkLabel(strElementNullLbl)
.ldloc(iLocal)
.ldc_i4_1
.add
.stloc(iLocal);
}
#endregion
#region Primitive, DateTime, decimal
else if (elementType.IsPrimitive || elementType == typeof(DateTime) || elementType == typeof(decimal))
{
serializerEmit
.ldarg_1
.ldarg_0
.ldfld(field)
.ldloc(iLocal)
.dup
.ldc_i4_1
.add
.stloc(iLocal);
if (elementType == typeof(bool) || elementType == typeof(sbyte))
{
serializerEmit = serializerEmit.ldelem_i1;
}
else if (elementType == typeof(byte))
{
serializerEmit = serializerEmit.ldelem_u1;
}
else if (elementType == typeof(char) || elementType == typeof(ushort))
{
serializerEmit = serializerEmit.ldelem_u2;
}
else if (elementType == typeof(short))
{
serializerEmit = serializerEmit.ldelem_i2;
}
else if (elementType == typeof(int))
{
serializerEmit = serializerEmit.ldelem_i4;
}
else if (elementType == typeof(uint))
{
serializerEmit = serializerEmit.ldelem_u4;
}
else if (elementType == typeof(float))
{
serializerEmit = serializerEmit.ldelem_r4;
}
else if (elementType == typeof(long) || elementType == typeof(ulong))
{
serializerEmit = serializerEmit.ldelem_i8;
}
else if (elementType == typeof(double))
{
serializerEmit = serializerEmit.ldelem_r8;
}
else if (elementType == typeof(decimal))
{
serializerEmit = serializerEmit.ldelema(elementType).ldobj(elementType);
}
else if (elementType == typeof(DateTime))
{
serializerEmit = serializerEmit.ldelema(elementType).call(typeof(DateTime).GetMethod("get_Ticks"));
}
var writeElementType = elementType != typeof(DateTime) ? elementType : typeof(long);
serializerEmit
.call(typeof(BinaryWriter).GetMethod("Write", new[] { writeElementType }));
}
#endregion
#region object
else if (elementType.IsClass)
{
var obj = serializerEmit.DeclareLocal(typeof(object));
var elementNullLabel = serializerEmit.DefineLabel();
var elementNotNullLabel = serializerEmit.DefineLabel();
var objectExistsLocal = serializerEmit.DefineLabel();
var objectNotExistsLocal = serializerEmit.DefineLabel();
serializerEmit
.ldarg_0
.ldfld(field)
.ldloc(iLocal)
.ldelem_ref
.stloc(obj)
.ldloc(obj)
.brtrue(elementNotNullLabel)
.ldarg_1
.ldc_i4_m1
.call(typeof(BinaryWriter).GetMethod("Write", new[] { typeof(int) }))
.br(elementNullLabel)
.MarkLabel(elementNotNullLabel)
.ldarg_2
.ldloc(obj)
.call(typeof(IDictionary<object, int>).GetMethod("ContainsKey", new[] { typeof(object) }))
.brtrue(objectExistsLocal)
.ldarg_1
.ldarg_3
.call(typeof(BinaryWriter).GetMethod("Write", new[] { typeof(int) }))
.ldloc(obj)
.castclass(typeof(ISerializable))
.ldarg_1
.ldarg_2
.ldarg_3
.call(typeof(ISerializable).GetMethod("Serialize"))
.br(objectNotExistsLocal)
.MarkLabel(objectExistsLocal)
.ldarg_1
.ldarg_2
.ldloc(obj)
.call(typeof(IDictionary<object, int>).GetMethod("get_Item", new[] { typeof(object) }))
.call(typeof(BinaryWriter).GetMethod("Write", new[] { typeof(int) }))
.MarkLabel(objectNotExistsLocal)
.MarkLabel(elementNullLabel)
.ldloc(iLocal)
.ldc_i4_1
.add
.stloc(iLocal);
}
#endregion
serializerEmit
.MarkLabel(endWhileLabel)
.ldloc(iLocal)
.ldloc(lenLocal)
.blt(whileLabel)
.MarkLabel(arrayNullLabel);
var readIntMethod = typeof(BinaryReader).GetMethod("ReadInt32");
var arrayNotNullLabel2 = deserializeEmit.DefineLabel();
var arrayNullLabel2 = deserializeEmit.DefineLabel();
var arrayLocal = deserializeEmit.DeclareLocal(field.FieldType);
var len = deserializeEmit.DeclareLocal(typeof(int));
var i = deserializeEmit.DeclareLocal(typeof(int));
var beginForLabel = deserializeEmit.DefineLabel();
var beginForBodyLabel = deserializeEmit.DefineLabel();
deserializeEmit = deserializeEmit
.ldarg_1
.call(readIntMethod)
.stloc(len)
.ldloc(len)
.ldc_i4_m1
.ceq
.brfalse(arrayNotNullLabel2)
.ldarg_0
.ldnull
.stfld(field)
.br(arrayNullLabel2)
.MarkLabel(arrayNotNullLabel2)
.ldloc(len)
.newarr(elementType)
.stloc(arrayLocal)
.ldc_i4_0
.stloc(i)
.br(beginForLabel)
.MarkLabel(beginForBodyLabel);
#region Primitive, decimal, DateTime
if (elementType.IsPrimitive)
{
deserializeEmit
.ldloc(arrayLocal)
.ldloc(i)
.ldarg_1
.call(typeof(BinaryReader).GetMethod("Read" + elementType.Name));
if (elementType == typeof(bool) || elementType == typeof(sbyte) || elementType == typeof(byte))
{
deserializeEmit = deserializeEmit.stelem_i1;
}
else if (elementType == typeof(char) || elementType == typeof(ushort) || elementType == typeof(short))
{
deserializeEmit = deserializeEmit.stelem_i2;
}
else if (elementType == typeof(int) || elementType == typeof(uint))
{
deserializeEmit = deserializeEmit.stelem_i4;
}
else if (elementType == typeof(float))
{
deserializeEmit = deserializeEmit.stelem_r4;
}
else if (elementType == typeof(long) || elementType == typeof(ulong))
{
deserializeEmit = deserializeEmit.stelem_i8;
}
else if (elementType == typeof(double))
{
deserializeEmit = deserializeEmit.stelem_r8;
}
}
else if (elementType == typeof(decimal))
{
deserializeEmit
.ldloc(arrayLocal)
.ldloc(i)
.ldelema(typeof(decimal))
.ldarg_1
.call(typeof(BinaryReader).GetMethod("ReadDecimal"))
.stobj(typeof(decimal));
}
else if (elementType == typeof(DateTime))
{
deserializeEmit
.ldloc(arrayLocal)
.ldloc(i)
.ldelema(typeof(DateTime))
.ldarg_1
.call(typeof(BinaryReader).GetMethod("ReadInt64"))
.newobj(typeof(DateTime), typeof(long))
.stobj(typeof(DateTime));
}
#endregion
#region string
else if (elementType == typeof(string))
{
var strLen = deserializeEmit.DeclareLocal(typeof(int));
var strNullLabel = deserializeEmit.DefineLabel();
var strNotNullLabel = deserializeEmit.DefineLabel();
deserializeEmit
.ldarg_1
.call(readIntMethod)
.stloc(strLen)
.ldloc(strLen)
.ldc_i4_m1
.ceq
.brfalse(strNotNullLabel)
.ldloc(arrayLocal)
.ldloc(i)
.ldelema(typeof(string))
.ldnull
.stobj(typeof(string))
.br(strNullLabel)
.MarkLabel(strNotNullLabel)
.ldloc(arrayLocal)
.ldloc(i)
.ldelema(typeof(string))
.ldarg_1
.call(typeof(BinaryReader).GetMethod("ReadString"))
.stobj(typeof(string))
.MarkLabel(strNullLabel);
}
#endregion
#region object
var desElementNullLabel = deserializeEmit.DefineLabel();
var desElementNotNullLabel = deserializeEmit.DefineLabel();
var propertyInstanceType = deserializeEmit.DeclareLocal(typeof(Type));
var indexLocal = deserializeEmit.DeclareLocal(typeof(int));
var desobjectExistsLocal = deserializeEmit.DefineLabel();
var desobjectNotExistsLocal = deserializeEmit.DefineLabel();
deserializeEmit
.ldarg_1
.call(typeof(BinaryReader).GetMethod("ReadInt32"))
.stloc(indexLocal)
.ldloc(indexLocal)
.ldc_i4_m1
.ceq
.brfalse(desElementNotNullLabel)
.ldloc(arrayLocal)
.ldloc(i)
.ldelema(elementType)
.ldnull
.stobj(elementType)
.br(desElementNullLabel)
.MarkLabel(desElementNotNullLabel)
.ldarg_2
.ldloc(indexLocal)
.call(typeof(IDictionary<int, object>).GetMethod("ContainsKey", new Type[] { typeof(int) }))
.brfalse(desobjectNotExistsLocal)
.ldloc(arrayLocal)
.ldloc(i)
.ldelema(elementType)
.ldarg_2
.ldloc(indexLocal)
.call(typeof(IDictionary<int, object>).GetMethod("get_Item", new Type[] { typeof(int) }))
.castclass(elementType)
.stobj(elementType)
.br(desobjectExistsLocal)
.MarkLabel(desobjectNotExistsLocal)
.ldarg_1
.call(typeof(BinaryReader).GetMethod("ReadString"))
.call(typeof(Type).GetMethod("GetType", new Type[] { typeof(string) }))
.stloc(propertyInstanceType)
.ldloc(arrayLocal)
.ldloc(i)
.ldelema(elementType)
.ldloc(propertyInstanceType)
.call(typeof(Activator).GetMethod("CreateInstance", new Type[] { typeof(Type) }))
.castclass(elementType)
.stobj(elementType)
.ldarg_2
.ldloc(indexLocal)
.ldloc(arrayLocal)
.ldloc(i)
.ldelem_ref
.call(typeof(IDictionary<int, object>).GetMethod("Add", new[] { typeof(int), typeof(object) }))
.ldloc(arrayLocal)
.ldloc(i)
.ldelem_ref
.castclass(typeof(ISerializable))
.ldarg_1
.ldarg_2
.call(typeof(ISerializable).GetMethod("Deserialize", new Type[] { typeof(BinaryReader), typeof(IDictionary<int, object>) }))
.MarkLabel(desobjectExistsLocal)
.MarkLabel(desElementNullLabel);
#endregion
deserializeEmit
.ldloc(i)
.ldc_i4_1
.add
.stloc(i)
.MarkLabel(beginForLabel)
.ldloc(i)
.ldloc(len)
.clt
.brtrue(beginForBodyLabel)
.ldarg_0
.ldloc(arrayLocal)
.stfld(field)
.MarkLabel(arrayNullLabel2);
}
