public override TObject Deserialize(Stream stream)
{
var theObject = Activator.CreateInstance <TObject>();
Type enumerableType;
foreach (var property in _properties)
{
if (TypesInfo.SystemTypes.Contains(property.PropertyType))
{
ReadObjectProperty(stream, property, theObject);
}
else if (TypesInfo.IsNullable(property.PropertyType))
{
ReadObjectNullableProperty(stream, property, theObject);
}
else if (TypesInfo.IsSupportedCollectionType(property.PropertyType, out enumerableType))
{
var lengthBytes = new byte[sizeof(int)];
stream.Read(lengthBytes, 0, lengthBytes.Length);
var arrayLength = BitConverter.ToInt32(lengthBytes, 0);
if (arrayLength > NullBytesCout)
{
var elementType = enumerableType == typeof(Array)
? property.PropertyType.GetElementType()
: enumerableType.GetGenericArguments()[0];
var array = Array.CreateInstance(elementType, arrayLength);
for (var i = 0; i < arrayLength; i++)
{
var element = ReadValue(stream, elementType);
array.SetValue(element, i);
}
if (enumerableType == typeof(Array))
{
property.SetValue(theObject, array);
}
else
{
var ctor = property.PropertyType.GetConstructor(new [] { enumerableType });
var enumerable = ctor.Invoke(new [] { array });
property.SetValue(theObject, enumerable);
}
}
}
else
{
throw new NotImplementedException();
}
}
return(theObject);
}
public override void Serialize(TObject theObject, Stream stream)
{
// properties
foreach (var property in _properties)
{
Type enumerableType;
if (TypesInfo.SystemTypes.Contains(property.PropertyType))
{
WriteObjectProperty(stream, property, theObject);
}
else if (TypesInfo.IsNullable(property.PropertyType))
{
WriteObjectNullableProperty(stream, property, theObject);
}
else if (TypesInfo.IsSupportedCollectionType(property.PropertyType, out enumerableType))
{
var elementType = enumerableType == typeof(Array)
? property.PropertyType.GetElementType()
: enumerableType.GetGenericArguments()[0];
var array = enumerableType == typeof(Array)
? (Array)property.GetValue(theObject)
: (Array)EnumerablesInfo
.GetToArrayMethod(enumerableType)
.Invoke(null, new object[] { property.GetValue(theObject) });
if (array != null)
{
var arrayLengthBytes = BitConverter.GetBytes(array.Length);
stream.Write(arrayLengthBytes, 0, arrayLengthBytes.Length);
for (var i = 0; i < array.Length; i++)
{
var arrayValue = array.GetValue(i);
WriteValueBytes(stream, arrayValue, elementType);
}
}
else
{
var arrayLengthBytes = BitConverter.GetBytes(NullBytesCout);
stream.Write(arrayLengthBytes, 0, arrayLengthBytes.Length);
}
}
else
{
throw new NotImplementedException();
}
}
}
public static EmitSerializer <TObject> Generate <TObject>()
where TObject : class, new()
{
var propertiesWriter = new DynamicMethod(
"WriteProperties",
null,
new Type[] { typeof(Stream), typeof(TObject) },
typeof(EmitSerializer <TObject>));
var writerIlGenerator = propertiesWriter.GetILGenerator();
var writerEmitter = new CodeEmitter(writerIlGenerator);
var propertiesReader = new DynamicMethod(
"ReadProperties",
null,
new Type[] { typeof(Stream), typeof(TObject) },
typeof(EmitSerializer <TObject>));
var readerIlGenerator = propertiesReader.GetILGenerator();
var readerEmitter = new CodeEmitter(readerIlGenerator);
var properties = typeof(TObject).GetProperties(BindingFlags.Instance | BindingFlags.Public);
foreach (var property in properties)
{
if (property.PropertyType == typeof(byte))
{
writerEmitter.EmitWriteBytePropertyCode(property);
readerEmitter.EmitReadBytePropertyCode(property);
}
else if (TypesInfo.PrimitiveTypes.Contains(property.PropertyType))
{
writerEmitter.EmitWritePrimitiveTypePropertyCode(property);
readerEmitter.EmitReadPrimitiveTypePropertyCode(property);
}
else if (property.PropertyType == typeof(Guid))
{
writerEmitter.EmitWriteGuidPropertyCode(property);
readerEmitter.EmitReadGuidPropertyCode(property);
}
else if (property.PropertyType == typeof(DateTime))
{
writerEmitter.EmitWriteDateTimePropertyCode(property);
readerEmitter.EmitReadDateTimePropertyCode(property);
}
else if (property.PropertyType == typeof(DateTimeOffset))
{
writerEmitter.EmitWriteDateTimeOffsetPropertyCode(property);
readerEmitter.EmitReadDateTimeOffsetPropertyCode(property);
}
else if (property.PropertyType == typeof(string))
{
writerEmitter.EmitWriteStringPropertyCode(property);
readerEmitter.EmitReadStringPropertyCode(property);
}
else if (property.PropertyType.IsArray)
{
writerEmitter.EmitWriteArrayPropertyCode(property);
readerEmitter.EmitReadArrayPropertyCode(property);
}
else if (GenericCollectionInfo.IsICollectionType(property.PropertyType))
{
writerEmitter.EmitWriteCollectionPropertyCode(property);
readerEmitter.EmitReadCollectionPropertyCode(property);
}
else if (TypesInfo.IsNullable(property.PropertyType))
{
writerEmitter.EmitWriteNullablePropertyCode(property);
readerEmitter.EmitReadNullablePropertyCode(property);
}
else
{
throw new NotImplementedException(
"Not supported property: " + property.PropertyType.ToString() + " " + property.Name);
}
}
writerEmitter.EmitMethodReturn();
readerEmitter.EmitMethodReturn();
var writePropertiesDelegate = (Action <Stream, TObject>)propertiesWriter.CreateDelegate(typeof(Action <Stream, TObject>));
var readPropertiesDelegate = (Action <Stream, TObject>)propertiesReader.CreateDelegate(typeof(Action <Stream, TObject>));
return(new EmitSerializer <TObject>(writePropertiesDelegate, readPropertiesDelegate));
}
