public void ProcessReferenceType <T>(IWriteOnlyExactValueDescriptor <T> descriptor)
where T : class
{
Type type;
if (TryReadReferenceType(descriptor, out type))
{
// Do not create instance when predefined type, Just route to it.
if (BinaryReaderWriterExtensions.IsPredefinedType(type))
{
descriptor.Route(
new BinaryStateMember
(new MyCustomStateMember((IReflectionStateMember)descriptor.StateMember,
type),
true,
true),
descriptor.Owner,
true);
return;
}
T instance = (T)Activator.CreateInstance(type);
_objects.Add(instance);
descriptor.Set(instance);
descriptor.Climb();
}
}
public void ProcessForWriteOnly(IWriteOnlyExactValueDescriptor <DateTime> descriptor)
{
AssertKnownType(descriptor);
long ticks = _reader.ReadInt64();
descriptor.Set(DateTime.FromBinary(ticks));
}
public void ProcessString(IWriteOnlyExactValueDescriptor <string> descriptor)
{
XElement element =
_reader.Element(descriptor.StateMember.Name);
string result = element.Value;
descriptor.Set(result);
}
public void ProcessPrimitives <[Primitive] T>(IWriteOnlyExactValueDescriptor <T> descriptor)
{
T value;
if (_store.TryGet <T>(descriptor.StateMember.Name, out value))
{
descriptor.Set(value);
}
}
public void ProcessInt32(IWriteOnlyExactValueDescriptor <int> descriptor)
{
XElement element =
_reader.Element(descriptor.StateMember.Name);
int result =
Convert.ToInt32(element.Value);
descriptor.Set(result);
}
public void ProcessForWriteOnly(IWriteOnlyExactValueDescriptor <string> descriptor)
{
Type type;
// Yeah yeah yeah, string is also a reference type.
if (TryReadReferenceType(descriptor, out type))
{
string value = _reader.ReadString();
_objects.Add(value);
descriptor.Set(value);
}
}
private bool TryReadReferenceType <T>(IWriteOnlyExactValueDescriptor <T> descriptor, out Type type)
where T : class
{
BinaryStateMember member = (BinaryStateMember)descriptor.StateMember;
type = member.RuntimeType;
if (member.HeaderHandled)
{
return(true);
}
byte header = _reader.ReadByte();
if (header == ReadWriteHeader.Null)
{
descriptor.Set(null);
}
else if (header == ReadWriteHeader.Revisited)
{
HandleVisited(descriptor);
}
else
{
if (!member.KnownType &&
(header == ReadWriteHeader.UnknownType))
{
string assemblyQualifiedName = _reader.ReadString();
type = Type.GetType(assemblyQualifiedName);
return(true);
}
if (header == ReadWriteHeader.KnownType)
{
return(true);
}
throw new Exception(
"Read an unknown header - probably a mismatch between reader and writer - i.e: a bug :(");
}
return(false);
}
public void ProcessObject(IWriteOnlyExactValueDescriptor <object> descriptor)
{
XElement element = _reader.Element(descriptor.StateMember.Name);
XAttribute attribute = element.Attribute("Type");
if (attribute != null)
{
var type = attribute.Value;
Type instanceType = Type.GetType(type);
// TODO: this will be the route method..
descriptor.Route
(new MyCustomStateMember((IReflectionStateMember)descriptor.StateMember,
instanceType), descriptor.Owner, true);
}
}
public void ProcessArray <[IsArray] TArray>(IWriteOnlyExactValueDescriptor <TArray> descriptor)
where TArray : class
{
// TODO: a bit too much code duplication here.
Type type;
if (TryReadReferenceType(descriptor, out type))
{
int[] lowerIndices = ReadIntArray();
int[] lengths = ReadIntArray();
Type elementType = typeof(TArray).GetElementType();
TArray value;
if (type == elementType.MakeArrayType())
{
// avoid T[*].
int length = lengths[0];
value =
(TArray)(object)
Array.CreateInstance(elementType, length);
}
else
{
value =
(TArray)(object)Array.CreateInstance
(elementType,
lengths,
lowerIndices);
}
_objects.Add(value);
descriptor.Set(value);
descriptor.Climb();
}
}
public void ProcessForWriteOnly(IWriteOnlyExactValueDescriptor <double> descriptor)
{
AssertKnownType(descriptor);
descriptor.Set(_reader.ReadDouble());
}
public void ProcessForWriteOnly(IWriteOnlyExactValueDescriptor <ulong> descriptor)
{
AssertKnownType(descriptor);
descriptor.Set(_reader.ReadUInt64());
}
public void ProcessForWriteOnly(IWriteOnlyExactValueDescriptor <short> descriptor)
{
AssertKnownType(descriptor);
descriptor.Set(_reader.ReadInt16());
}
private void HandleVisited <T>(IWriteOnlyExactValueDescriptor <T> descriptor)
{
int index = _reader.ReadInt32();
descriptor.Set((T)_objects[index]);
}
