/// <summary>
/// Reads an *implementation specific* bundled .NET object, including (as options) type-metadata, identity/re-use, etc.
/// </summary>
public static object ReadNetObject(object value, ProtoReader source, int key, Type type, NetObjectOptions options)
{
SubItemToken token = ProtoReader.StartSubItem(source);
int fieldNumber;
int newObjectKey = -1, newTypeKey = -1, tmp;
while ((fieldNumber = source.ReadFieldHeader()) > 0)
{
switch (fieldNumber)
{
case FieldExistingObjectKey:
tmp = source.ReadInt32();
value = source.NetCache.GetKeyedObject(tmp);
break;
case FieldNewObjectKey:
newObjectKey = source.ReadInt32();
break;
case FieldExistingTypeKey:
tmp = source.ReadInt32();
type = (Type)source.NetCache.GetKeyedObject(tmp);
key = source.GetTypeKey(ref type);
break;
case FieldNewTypeKey:
newTypeKey = source.ReadInt32();
break;
case FieldTypeName:
string typeName = source.ReadString();
type = source.DeserializeType(typeName);
if (type == null)
{
throw new ProtoException("Unable to resolve type: " + typeName + " (you can use the TypeModel.DynamicTypeFormatting event to provide a custom mapping)");
}
if (type == typeof(string))
{
key = -1;
}
else
{
key = source.GetTypeKey(ref type);
if (key < 0)
{
throw new InvalidOperationException("Dynamic type is not a contract-type: " + type.Name);
}
}
break;
case FieldObject:
bool isString = type == typeof(string);
bool wasNull = value == null;
bool lateSet = wasNull && (isString || ((options & NetObjectOptions.LateSet) != 0));
if (newObjectKey >= 0 && !lateSet)
{
if (value == null)
{
source.TrapNextObject(newObjectKey);
}
else
{
source.NetCache.SetKeyedObject(newObjectKey, value);
}
if (newTypeKey >= 0)
{
source.NetCache.SetKeyedObject(newTypeKey, type);
}
}
object oldValue = value;
if (isString)
{
value = source.ReadString();
}
else
{
value = ProtoReader.ReadTypedObject(oldValue, key, source, type);
}
if (newObjectKey >= 0)
{
if (wasNull && !lateSet)
{ // this both ensures (via exception) that it *was* set, and makes sure we don't shout
// about changed references
oldValue = source.NetCache.GetKeyedObject(newObjectKey);
}
if (lateSet)
{
source.NetCache.SetKeyedObject(newObjectKey, value);
if (newTypeKey >= 0)
{
source.NetCache.SetKeyedObject(newTypeKey, type);
}
}
}
if (newObjectKey >= 0 && !lateSet && !ReferenceEquals(oldValue, value))
{
throw new ProtoException("A reference-tracked object changed reference during deserialization");
}
if (newObjectKey < 0 && newTypeKey >= 0)
{ // have a new type, but not a new object
source.NetCache.SetKeyedObject(newTypeKey, type);
}
break;
default:
source.SkipField();
break;
}
}
if (newObjectKey >= 0 && (options & NetObjectOptions.AsReference) == 0)
{
throw new ProtoException("Object key in input stream, but reference-tracking was not expected");
}
ProtoReader.EndSubItem(token, source);
return(value);
}
/// <summary>
/// Reads an *implementation specific* bundled .NET object, including (as options) type-metadata, identity/re-use, etc.
/// </summary>
public static SubItemToken ReadNetObject_Start(ref object value, ProtoReader source, ref Type type, BclHelpers.NetObjectOptions options, out bool isDynamic, out bool isLateReference, ref int typeKey, out int newObjectKey, out int newTypeRefKey, out bool shouldEnd)
{
#if FEAT_IKVM
throw new NotSupportedException();
#else
shouldEnd = false;
newObjectKey = -1;
newTypeRefKey = -1;
isDynamic = false;
isLateReference = false;
SubItemToken token = ProtoReader.StartSubItem(source);
int fieldNumber;
if ((fieldNumber = source.ReadFieldHeader()) == 0)
{
// null handling
value = null;
return(token);
}
do
{
int tmp;
switch (fieldNumber)
{
case FieldExistingObjectKey:
tmp = source.ReadInt32();
value = source.NetCache.GetKeyedObject(tmp);
break;
case FieldNewObjectKey:
newObjectKey = source.ReadInt32();
break;
case FieldExistingTypeKey:
tmp = source.ReadInt32();
type = (Type)source.NetCache.GetKeyedObject(tmp);
typeKey = source.GetTypeKey(ref type);
break;
case FieldNewTypeKey:
newTypeRefKey = source.ReadInt32();
break;
case FieldTypeName:
string typeName = source.ReadString();
type = source.DeserializeType(typeName);
if (type == null)
{
throw new ProtoException("Unable to resolve type: " + typeName + " (you can use the TypeModel.DynamicTypeFormatting event to provide a custom mapping)");
}
typeKey = source.GetTypeKey(ref type);
isDynamic = true;
break;
case FieldLateReferenceObject:
case FieldObject:
if (fieldNumber == FieldLateReferenceObject)
{
isLateReference = true;
}
shouldEnd = true;
bool wasNull = value == null;
bool lateSet = wasNull && ((options & BclHelpers.NetObjectOptions.LateSet) != 0);
if (newObjectKey >= 0 && !lateSet)
{
if (value == null)
{
source.TrapNextObject(newObjectKey);
}
else
{
source.NetCache.SetKeyedObject(newObjectKey, value);
}
if (newTypeRefKey >= 0)
{
source.NetCache.SetKeyedObject(newTypeRefKey, type);
}
}
return(token);
default:
source.SkipField();
break;
}
} while ((fieldNumber = source.ReadFieldHeader()) > 0);
return(token);
#endif
}