public void Decompile(Config config, string outputDir)
{
var writer = new StreamWriter(new FileStream(outputDir + "dump.cs", FileMode.Create), new UTF8Encoding(false));
//dump image
for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++)
{
var imageDef = metadata.imageDefs[imageIndex];
writer.Write($"// Image {imageIndex}: {metadata.GetStringFromIndex(imageDef.nameIndex)} - {imageDef.typeStart}\n");
}
//dump type
for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++)
{
try
{
var imageDef = metadata.imageDefs[imageIndex];
var typeEnd = imageDef.typeStart + imageDef.typeCount;
for (int typeDefIndex = imageDef.typeStart; typeDefIndex < typeEnd; typeDefIndex++)
{
var typeDef = metadata.typeDefs[typeDefIndex];
var extends = new List <string>();
if (typeDef.parentIndex >= 0)
{
var parent = il2Cpp.types[typeDef.parentIndex];
var parentName = executor.GetTypeName(parent, false, false);
if (!typeDef.IsValueType && !typeDef.IsEnum && parentName != "object")
{
extends.Add(parentName);
}
}
if (typeDef.interfaces_count > 0)
{
for (int i = 0; i < typeDef.interfaces_count; i++)
{
var @interface = il2Cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]];
extends.Add(executor.GetTypeName(@interface, false, false));
}
}
writer.Write($"\n// Namespace: {metadata.GetStringFromIndex(typeDef.namespaceIndex)}\n");
if (config.DumpAttribute)
{
writer.Write(GetCustomAttribute(imageDef, typeDef.customAttributeIndex, typeDef.token));
}
if (config.DumpAttribute && (typeDef.flags & TYPE_ATTRIBUTE_SERIALIZABLE) != 0)
{
writer.Write("[Serializable]\n");
}
var visibility = typeDef.flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
switch (visibility)
{
case TYPE_ATTRIBUTE_PUBLIC:
case TYPE_ATTRIBUTE_NESTED_PUBLIC:
writer.Write("public ");
break;
case TYPE_ATTRIBUTE_NOT_PUBLIC:
case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
writer.Write("internal ");
break;
case TYPE_ATTRIBUTE_NESTED_PRIVATE:
writer.Write("private ");
break;
case TYPE_ATTRIBUTE_NESTED_FAMILY:
writer.Write("protected ");
break;
case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
writer.Write("protected internal ");
break;
}
if ((typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0 && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0)
{
writer.Write("static ");
}
else if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) == 0 && (typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0)
{
writer.Write("abstract ");
}
else if (!typeDef.IsValueType && !typeDef.IsEnum && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0)
{
writer.Write("sealed ");
}
if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) != 0)
{
writer.Write("interface ");
}
else if (typeDef.IsEnum)
{
writer.Write("enum ");
}
else if (typeDef.IsValueType)
{
writer.Write("struct ");
}
else
{
writer.Write("class ");
}
var typeName = executor.GetTypeDefName(typeDef, false, true);
writer.Write($"{typeName}");
if (extends.Count > 0)
{
writer.Write($" : {string.Join(", ", extends)}");
}
if (config.DumpTypeDefIndex)
{
writer.Write($" // TypeDefIndex: {typeDefIndex}\n{{");
}
else
{
writer.Write("\n{");
}
//dump field
if (config.DumpField && typeDef.field_count > 0)
{
writer.Write("\n\t// Fields\n");
var fieldEnd = typeDef.fieldStart + typeDef.field_count;
for (var i = typeDef.fieldStart; i < fieldEnd; ++i)
{
var fieldDef = metadata.fieldDefs[i];
var fieldType = il2Cpp.types[fieldDef.typeIndex];
var isStatic = false;
if (config.DumpAttribute)
{
writer.Write(GetCustomAttribute(imageDef, fieldDef.customAttributeIndex, fieldDef.token, "\t"));
}
writer.Write("\t");
var access = fieldType.attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK;
switch (access)
{
case FIELD_ATTRIBUTE_PRIVATE:
writer.Write("private ");
break;
case FIELD_ATTRIBUTE_PUBLIC:
writer.Write("public ");
break;
case FIELD_ATTRIBUTE_FAMILY:
writer.Write("protected ");
break;
case FIELD_ATTRIBUTE_ASSEMBLY:
case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
writer.Write("internal ");
break;
case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
writer.Write("protected internal ");
break;
}
if ((fieldType.attrs & FIELD_ATTRIBUTE_LITERAL) != 0)
{
writer.Write("const ");
}
else
{
if ((fieldType.attrs & FIELD_ATTRIBUTE_STATIC) != 0)
{
isStatic = true;
writer.Write("static ");
}
if ((fieldType.attrs & FIELD_ATTRIBUTE_INIT_ONLY) != 0)
{
writer.Write("readonly ");
}
}
writer.Write($"{executor.GetTypeName(fieldType, false, false)} {metadata.GetStringFromIndex(fieldDef.nameIndex)}");
if (metadata.GetFieldDefaultValueFromIndex(i, out var fieldDefaultValue) && fieldDefaultValue.dataIndex != -1)
{
if (TryGetDefaultValue(fieldDefaultValue.typeIndex, fieldDefaultValue.dataIndex, out var value))
{
writer.Write($" = ");
if (value is string str)
{
writer.Write($"\"{str.ToEscapedString()}\"");
}
else if (value is char c)
{
var v = (int)c;
writer.Write($"'\\x{v:x}'");
}
else if (value != null)
{
writer.Write($"{value}");
}
}
else
{
writer.Write($" /*Metadata offset 0x{value:X}*/");
}
}
if (config.DumpFieldOffset)
{
writer.Write("; // 0x{0:X}\n", il2Cpp.GetFieldOffsetFromIndex(typeDefIndex, i - typeDef.fieldStart, i, typeDef.IsValueType, isStatic));
}
else
{
writer.Write(";\n");
}
}
}
//dump property
if (config.DumpProperty && typeDef.property_count > 0)
{
writer.Write("\n\t// Properties\n");
var propertyEnd = typeDef.propertyStart + typeDef.property_count;
for (var i = typeDef.propertyStart; i < propertyEnd; ++i)
{
var propertyDef = metadata.propertyDefs[i];
if (config.DumpAttribute)
{
writer.Write(GetCustomAttribute(imageDef, propertyDef.customAttributeIndex, propertyDef.token, "\t"));
}
writer.Write("\t");
if (propertyDef.get >= 0)
{
var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.get];
writer.Write(GetModifiers(methodDef));
var propertyType = il2Cpp.types[methodDef.returnType];
writer.Write($"{executor.GetTypeName(propertyType, false, false)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ ");
}
else if (propertyDef.set >= 0)
{
var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.set];
writer.Write(GetModifiers(methodDef));
var parameterDef = metadata.parameterDefs[methodDef.parameterStart];
var propertyType = il2Cpp.types[parameterDef.typeIndex];
writer.Write($"{executor.GetTypeName(propertyType, false, false)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ ");
}
if (propertyDef.get >= 0)
{
writer.Write("get; ");
}
if (propertyDef.set >= 0)
{
writer.Write("set; ");
}
writer.Write("}");
writer.Write("\n");
}
}
//dump method
if (config.DumpMethod && typeDef.method_count > 0)
{
writer.Write("\n\t// Methods\n");
var methodEnd = typeDef.methodStart + typeDef.method_count;
for (var i = typeDef.methodStart; i < methodEnd; ++i)
{
writer.Write("\n");
var methodDef = metadata.methodDefs[i];
if (config.DumpAttribute)
{
writer.Write(GetCustomAttribute(imageDef, methodDef.customAttributeIndex, methodDef.token, "\t"));
}
if (config.DumpMethodOffset)
{
var methodPointer = il2Cpp.GetMethodPointer(methodDef, imageIndex);
if (methodPointer > 0)
{
var fixedMethodPointer = il2Cpp.GetRVA(methodPointer);
writer.Write("\t// RVA: 0x{0:X} Offset: 0x{1:X} VA: 0x{2:X}", fixedMethodPointer, il2Cpp.MapVATR(methodPointer), methodPointer);
}
else
{
writer.Write("\t// RVA: -1 Offset: -1");
}
if (methodDef.slot != ushort.MaxValue)
{
writer.Write(" Slot: {0}", methodDef.slot);
}
writer.Write("\n");
}
writer.Write("\t");
writer.Write(GetModifiers(methodDef));
var methodReturnType = il2Cpp.types[methodDef.returnType];
var methodName = metadata.GetStringFromIndex(methodDef.nameIndex);
if (methodDef.genericContainerIndex >= 0)
{
var genericContainer = metadata.genericContainers[methodDef.genericContainerIndex];
methodName += executor.GetGenericContainerParams(genericContainer);
}
if (methodReturnType.byref == 1)
{
writer.Write("ref ");
}
writer.Write($"{executor.GetTypeName(methodReturnType, false, false)} {methodName}(");
var parameterStrs = new List <string>();
for (var j = 0; j < methodDef.parameterCount; ++j)
{
var parameterStr = "";
var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j];
var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex);
var parameterType = il2Cpp.types[parameterDef.typeIndex];
var parameterTypeName = executor.GetTypeName(parameterType, false, false);
if (parameterType.byref == 1)
{
if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0 && (parameterType.attrs & PARAM_ATTRIBUTE_IN) == 0)
{
parameterStr += "out ";
}
else if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) == 0 && (parameterType.attrs & PARAM_ATTRIBUTE_IN) != 0)
{
parameterStr += "in ";
}
else
{
parameterStr += "ref ";
}
}
else
{
if ((parameterType.attrs & PARAM_ATTRIBUTE_IN) != 0)
{
parameterStr += "[In] ";
}
if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0)
{
parameterStr += "[Out] ";
}
}
parameterStr += $"{parameterTypeName} {parameterName}";
if (metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j, out var parameterDefault) && parameterDefault.dataIndex != -1)
{
if (TryGetDefaultValue(parameterDefault.typeIndex, parameterDefault.dataIndex, out var value))
{
parameterStr += " = ";
if (value is string str)
{
parameterStr += $"\"{str.ToEscapedString()}\"";
}
else if (value is char c)
{
var v = (int)c;
parameterStr += $"'\\x{v:x}'";
}
else if (value != null)
{
parameterStr += $"{value}";
}
}
else
{
parameterStr += $" /*Metadata offset 0x{value:X}*/";
}
}
parameterStrs.Add(parameterStr);
}
writer.Write(string.Join(", ", parameterStrs));
writer.Write(") { }\n");
if (il2Cpp.methodDefinitionMethodSpecs.TryGetValue(i, out var methodSpecs))
{
writer.Write("\t/* GenericInstMethod :\n");
var groups = methodSpecs.GroupBy(x => il2Cpp.methodSpecGenericMethodPointers[x]);
foreach (var group in groups)
{
writer.Write("\t|\n");
var genericMethodPointer = group.Key;
if (genericMethodPointer > 0)
{
var fixedPointer = il2Cpp.GetRVA(genericMethodPointer);
writer.Write($"\t|-RVA: 0x{fixedPointer:X} Offset: 0x{il2Cpp.MapVATR(genericMethodPointer):X} VA: 0x{genericMethodPointer:X}\n");
}
else
{
writer.Write("\t|-RVA: -1 Offset: -1\n");
}
foreach (var methodSpec in group)
{
(var methodSpecTypeName, var methodSpecMethodName) = executor.GetMethodSpecName(methodSpec);
writer.Write($"\t|-{methodSpecTypeName}.{methodSpecMethodName}\n");
}
}
writer.Write("\t*/\n");
}
}
}
writer.Write("}\n");
}
}
catch (Exception e)
{
Console.WriteLine("ERROR: Some errors in dumping");
writer.Write("/*");
writer.Write(e);
writer.Write("*/\n}\n");
}
}
writer.Close();
}