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correct support of Il2CppRGCTXDefinition in metadata version above 27.1 #339

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Merged
SamboyCoding merged 3 commits into from
Sep 17, 2024
Merged

correct support of Il2CppRGCTXDefinition in metadata version above 27.1 #339

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004d48c
Update Il2CppRGCTXDefinition.cs
lifeengines Sep 16, 2024
4476b73
Update Il2CppRGCTXDataType.cs
lifeengines Sep 16, 2024
05b3c8a
Update Il2CppRGCTXDefinition.cs
lifeengines Sep 16, 2024
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1 change: 1 addition & 0 deletions LibCpp2IL/BinaryStructures/Il2CppRGCTXDataType.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,4 +7,5 @@ public enum Il2CppRGCTXDataType : int
IL2CPP_RGCTX_DATA_CLASS,
IL2CPP_RGCTX_DATA_METHOD,
IL2CPP_RGCTX_DATA_ARRAY,
IL2CPP_RGCTX_DATA_CONSTRAINED,
}
63 changes: 59 additions & 4 deletions LibCpp2IL/BinaryStructures/Il2CppRGCTXDefinition.cs
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Expand Up @@ -7,17 +7,72 @@ public class Il2CppRGCTXDefinition : ReadableClass
public Il2CppRGCTXDataType type;
public int _rawIndex;

public int MethodIndex => _rawIndex;
public int MethodIndex => type == Il2CppRGCTXDataType.IL2CPP_RGCTX_DATA_CONSTRAINED ? _constrainedData.MethodIndex : _defData.MethodIndex;

public int TypeIndex => _rawIndex;
public int TypeIndex => type == Il2CppRGCTXDataType.IL2CPP_RGCTX_DATA_CONSTRAINED ? _constrainedData.TypeIndex : _defData.TypeIndex;

public Il2CppMethodSpec? MethodSpec => LibCpp2IlMain.Binary?.GetMethodSpec(MethodIndex);

public Il2CppTypeReflectionData? Type => LibCpp2ILUtils.GetTypeReflectionData(LibCpp2IlMain.Binary!.GetType(TypeIndex));


public class Il2CppRGCTXDefinitionData : ReadableClass
{
private int rgctxDataDummy;
public int MethodIndex => rgctxDataDummy;
public int TypeIndex => rgctxDataDummy;
public override void Read(ClassReadingBinaryReader reader)
{
rgctxDataDummy = reader.ReadInt32();
}
}

public class Il2CppRGCTXConstrainedData : ReadableClass
{
public int _typeIndex;
public int _encodedMethodIndex;
public int TypeIndex => _typeIndex;
public int MethodIndex => _encodedMethodIndex;

public override void Read(ClassReadingBinaryReader reader)
{
_typeIndex = reader.ReadInt32();
_encodedMethodIndex = reader.ReadInt32();
}
}
[Version(Min = 27.2f)]
private Il2CppRGCTXConstrainedData _constrainedData;

private Il2CppRGCTXDefinitionData _defData;
public override void Read(ClassReadingBinaryReader reader)
{
type = (Il2CppRGCTXDataType)reader.ReadInt32();
_rawIndex = reader.ReadInt32();
type = IsLessThan(29) ? (Il2CppRGCTXDataType)reader.ReadInt32() : (Il2CppRGCTXDataType)reader.ReadInt64();
if (IsLessThan(27.2f))
{
_defData = new Il2CppRGCTXDefinitionData();
_defData.Read(reader);
}
else
{
var va = reader.ReadNUint();
if (type == Il2CppRGCTXDataType.IL2CPP_RGCTX_DATA_CONSTRAINED)
{
var bakPosition = reader.Position;
reader.Position = LibCpp2IlMain.Binary!.MapVirtualAddressToRaw(va);
_constrainedData = new Il2CppRGCTXConstrainedData();
_constrainedData.Read(reader);
reader.Position = bakPosition;
}
else
{
var bakPosition = reader.Position;
reader.Position = LibCpp2IlMain.Binary!.MapVirtualAddressToRaw(va);
_defData = new Il2CppRGCTXDefinitionData();
_defData.Read(reader);
reader.Position = bakPosition;
}

}

}
}