private PropertyInfo ReadProperty(BinaryReader Reader, FPropertyTag Tag = null)
{
var Info = new PropertyInfo();
if (Tag == null)
{
Info.Tag.Deserialize(Reader);
}
else
{
Info.Tag = Tag;
}
if (Info.Tag.Name == "None")
{
return(null);
}
if (Info.Tag.Size == 0)
{
return(Info);
}
if (Info.Tag.Type == "StructProperty")
{
if (!HardcodedStructs.ContainsKey(Info.Tag.StructName))
{
// If it's not hardcoded it has tags for each field
for (var Child = ReadProperty(Reader); Child != null; Child = ReadProperty(Reader))
{
Info.Children.Add(Child);
}
return(Info);
}
Info.Prop = HardcodedStructs[Info.Tag.StructName]();
}
else if (Info.Tag.Type == "ArrayProperty")
{
var ArrayProp = new UArrayProperty();
ArrayProp.Deserialize(Reader);
Info.Prop = ArrayProp;
for (var i = 0; i < ArrayProp.Length; i++)
{
var Child = ReadProperty(Reader, ArrayProp.InnerTag);
Child.ArrayIndex = i;
Info.Children.Add(Child);
}
return(Info);
}
else
{
if (!PropertyConstructors.ContainsKey(Info.Tag.Type))
{
// Unsupported type
Info.UnsupportedData = Reader.ReadBytes(Info.Tag.Size);
return(Info);
}
Info.Prop = PropertyConstructors[Info.Tag.Type]();
}
var Data = Reader.ReadBytes(Info.Tag.Size);
using (var DataStream = new MemoryStream(Data))
{
using (var DataReader = new BinaryReader(DataStream))
{
Info.Prop.Deserialize(DataReader);
}
}
return(Info);
}
private PropertyInfo ReadProperty(BinaryReader Reader, FPropertyTag Tag = null)
{
var Info = new PropertyInfo();
if (Tag == null)
{
Info.Tag.Deserialize(Reader);
}
else
{
Info.Tag = Tag;
}
if (Info.Tag.Name == "None")
{
return(null);
}
if (Info.Tag.Type == "BoolProperty")
{
// Special handling for tagless bools in MapProperty
if (Tag != null)
{
Info.Tag.BoolVal = Reader.ReadByte();
}
return(Info);
}
else if (Info.Tag.Type == "StructProperty")
{
if (Info.Tag.StructName == null || !HardcodedStructs.ContainsKey(Info.Tag.StructName))
{
// If it's not hardcoded it has tags for each field
for (var Child = ReadProperty(Reader); Child != null; Child = ReadProperty(Reader))
{
Child.Parent = Info;
Info.Children.Add(Child);
}
return(Info);
}
Info.Prop = HardcodedStructs[Info.Tag.StructName]();
}
else if (Info.Tag.Type == "MapProperty")
{
var MapProp = new UMapProperty();
var StartOffset = Reader.BaseStream.Position;
MapProp.Deserialize(Reader);
Info.Prop = MapProp;
for (var i = 0; i < MapProp.NumEntries; i++)
{
var Key = ReadProperty(Reader, new FPropertyTag(Info.Tag.InnerType));
Key.ArrayIndex = i;
Key.KVType = PropertyInfo.KeyValueType.Key;
Key.Parent = Info;
Info.Children.Add(Key);
var Value = ReadProperty(Reader, new FPropertyTag(Info.Tag.ValueType));
Value.ArrayIndex = i;
Value.KVType = PropertyInfo.KeyValueType.Value;
Value.Parent = Info;
Info.Children.Add(Value);
if (Key.FailureReason != null || Value.FailureReason != null)
{
// It's impossible to skip a MapProperty child that can't be deserialized because the size is unknown
Reader.BaseStream.Seek(StartOffset, SeekOrigin.Begin);
Info.RawData = Reader.ReadBytes(Info.Tag.Size);
Info.FailureReason = "Failed to deserialize child: " + (Key.FailureReason ?? Value.FailureReason);
Info.Children.Clear();
return(Info);
}
}
return(Info);
}
else if (Info.Tag.Type == "ArrayProperty")
{
var ArrayProp = new UArrayProperty();
ArrayProp.Deserialize(Reader);
Info.Prop = ArrayProp;
for (var i = 0; i < ArrayProp.Length; i++)
{
var Child = ReadProperty(Reader, ArrayProp.InnerTag);
Child.ArrayIndex = i;
Child.Parent = Info;
Info.Children.Add(Child);
}
return(Info);
}
else
{
if (!PropertyConstructors.ContainsKey(Info.Tag.Type))
{
Info.RawData = Reader.ReadBytes(Info.Tag.Size);
Info.FailureReason = "Unsupported type";
return(Info);
}
Info.Prop = PropertyConstructors[Info.Tag.Type]();
}
// UMapProperty does not provide a full tag for the inner types, so the size is unknown
if (Tag != null && Tag.Size == 0)
{
try
{
Info.Prop.Deserialize(Reader);
}
catch (Exception e)
{
// Treat it the same as an unsupported property type
Info.FailureReason = e.Message;
Info.Prop = null;
}
return(Info);
}
Info.RawData = Reader.ReadBytes(Info.Tag.Size);
using (var DataStream = new MemoryStream(Info.RawData))
{
using (var DataReader = new BinaryReader(DataStream))
{
try
{
Info.Prop.Deserialize(DataReader);
}
catch (Exception e)
{
// Treat it the same as an unsupported property type
Info.FailureReason = e.Message;
Info.Prop = null;
}
}
}
return(Info);
}
