Ejemplo n.º 1
0
        public DummyAssemblyCreator(Metadata metadata, Il2Cpp il2cpp)
        {
            this.metadata = metadata;
            this.il2cpp   = il2cpp;
            //Il2CppDummyDll
            var il2CppDummyDll       = AssemblyDefinition.ReadAssembly(new MemoryStream(Resource1.Il2CppDummyDll));
            var addressAttribute     = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AddressAttribute").Methods.First();
            var fieldOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "FieldOffsetAttribute").Methods.First();
            var stringType           = il2CppDummyDll.MainModule.TypeSystem.String;
            var resolver             = new MyAssemblyResolver();
            var moduleParameters     = new ModuleParameters
            {
                Kind             = ModuleKind.Dll,
                AssemblyResolver = resolver
            };

            //创建程序集,同时创建所有类
            foreach (var imageDef in metadata.imageDefs)
            {
                var assemblyName       = new AssemblyNameDefinition(metadata.GetStringFromIndex(imageDef.nameIndex).Replace(".dll", ""), new Version("3.7.1.6"));
                var assemblyDefinition = AssemblyDefinition.CreateAssembly(assemblyName, metadata.GetStringFromIndex(imageDef.nameIndex), moduleParameters);
                resolver.Register(assemblyDefinition);
                Assemblies.Add(assemblyDefinition);
                var moduleDefinition = assemblyDefinition.MainModule;
                moduleDefinition.Types.Clear();//清除自动创建的<Module>类
                var typeEnd = imageDef.typeStart + imageDef.typeCount;
                for (var index = imageDef.typeStart; index < typeEnd; ++index)
                {
                    var            typeDef       = metadata.typeDefs[index];
                    var            namespaceName = metadata.GetStringFromIndex(typeDef.namespaceIndex);
                    var            typeName      = metadata.GetStringFromIndex(typeDef.nameIndex);
                    TypeDefinition typeDefinition;
                    if (typeDef.declaringTypeIndex != -1)//nested types
                    {
                        typeDefinition = typeDefinitionDic[index];
                    }
                    else
                    {
                        typeDefinition = new TypeDefinition(namespaceName, typeName, (TypeAttributes)typeDef.flags);
                        moduleDefinition.Types.Add(typeDefinition);
                        typeDefinitionDic.Add(index, typeDefinition);
                    }
                    //nestedtype
                    for (int i = 0; i < typeDef.nested_type_count; i++)
                    {
                        var nestedIndex          = metadata.nestedTypeIndices[typeDef.nestedTypesStart + i];
                        var nestedTypeDef        = metadata.typeDefs[nestedIndex];
                        var nestedTypeDefinition = new TypeDefinition(metadata.GetStringFromIndex(nestedTypeDef.namespaceIndex), metadata.GetStringFromIndex(nestedTypeDef.nameIndex), (TypeAttributes)nestedTypeDef.flags);
                        typeDefinition.NestedTypes.Add(nestedTypeDefinition);
                        typeDefinitionDic.Add(nestedIndex, nestedTypeDefinition);
                    }
                }
            }
            //先单独处理,因为不知道会不会有问题
            for (var index = 0; index < metadata.uiNumTypes; ++index)
            {
                var typeDef        = metadata.typeDefs[index];
                var typeDefinition = typeDefinitionDic[index];
                //parent
                if (typeDef.parentIndex >= 0)
                {
                    var parentType    = il2cpp.types[typeDef.parentIndex];
                    var parentTypeRef = GetTypeReference(typeDefinition, parentType);
                    typeDefinition.BaseType = parentTypeRef;
                }
                //interfaces
                for (int i = 0; i < typeDef.interfaces_count; i++)
                {
                    var interfaceType    = il2cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]];
                    var interfaceTypeRef = GetTypeReference(typeDefinition, interfaceType);
                    typeDefinition.Interfaces.Add(interfaceTypeRef);
                }
            }
            //处理field, method, property等等
            for (var index = 0; index < metadata.uiNumTypes; ++index)
            {
                var typeDef        = metadata.typeDefs[index];
                var typeDefinition = typeDefinitionDic[index];
                //field
                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 fieldName       = metadata.GetStringFromIndex(fieldDef.nameIndex);
                    var fieldTypeRef    = GetTypeReference(typeDefinition, fieldType);
                    var fieldDefinition = new FieldDefinition(fieldName, (FieldAttributes)fieldType.attrs, fieldTypeRef);
                    typeDefinition.Fields.Add(fieldDefinition);
                    //fieldDefault
                    if (fieldDefinition.HasDefault)
                    {
                        var fieldDefault = metadata.GetFieldDefaultValueFromIndex(i);
                        if (fieldDefault != null && fieldDefault.dataIndex != -1)
                        {
                            fieldDefinition.Constant = GetDefaultValue(fieldDefault.dataIndex, fieldDefault.typeIndex);
                        }
                    }
                    //fieldOffset
                    var fieldOffset = il2cpp.GetFieldOffsetFromIndex(index, i - typeDef.fieldStart, i);
                    if (fieldOffset > 0)
                    {
                        var customAttribute = new CustomAttribute(typeDefinition.Module.Import(fieldOffsetAttribute));
                        var offset          = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{fieldOffset:X}"));
                        customAttribute.Fields.Add(offset);
                        fieldDefinition.CustomAttributes.Add(customAttribute);
                    }
                }
                //method
                var methodEnd = typeDef.methodStart + typeDef.method_count;
                for (var i = typeDef.methodStart; i < methodEnd; ++i)
                {
                    var methodDef        = metadata.methodDefs[i];
                    var methodReturnType = il2cpp.types[methodDef.returnType];
                    var methodName       = metadata.GetStringFromIndex(methodDef.nameIndex);
                    var methodDefinition = new MethodDefinition(methodName, (MethodAttributes)methodDef.flags, typeDefinition.Module.Import(typeof(void)));
                    typeDefinition.Methods.Add(methodDefinition);
                    methodDefinition.ReturnType = GetTypeReference(methodDefinition, methodReturnType);
                    if (methodDefinition.HasBody && typeDefinition.BaseType?.FullName != "System.MulticastDelegate")
                    {
                        var ilprocessor = methodDefinition.Body.GetILProcessor();
                        ilprocessor.Append(ilprocessor.Create(OpCodes.Nop));
                    }
                    methodDefinitionDic.Add(i, methodDefinition);
                    //method parameter
                    for (var j = 0; j < methodDef.parameterCount; ++j)
                    {
                        var parameterDef        = metadata.parameterDefs[methodDef.parameterStart + j];
                        var parameterName       = metadata.GetStringFromIndex(parameterDef.nameIndex);
                        var parameterType       = il2cpp.types[parameterDef.typeIndex];
                        var parameterTypeRef    = GetTypeReference(methodDefinition, parameterType);
                        var parameterDefinition = new ParameterDefinition(parameterName, (ParameterAttributes)parameterType.attrs, parameterTypeRef);
                        methodDefinition.Parameters.Add(parameterDefinition);
                        //ParameterDefault
                        if (parameterDefinition.HasDefault)
                        {
                            var parameterDefault = metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j);
                            if (parameterDefault != null && parameterDefault.dataIndex != -1)
                            {
                                parameterDefinition.Constant = GetDefaultValue(parameterDefault.dataIndex, parameterDefault.typeIndex);
                            }
                        }
                    }
                    //补充泛型参数
                    if (methodDef.genericContainerIndex >= 0)
                    {
                        var genericContainer = metadata.genericContainers[methodDef.genericContainerIndex];
                        if (genericContainer.type_argc > methodDefinition.GenericParameters.Count)
                        {
                            for (int j = methodDefinition.GenericParameters.Count + 1; j <= genericContainer.type_argc; j++)
                            {
                                var genericParameter = new GenericParameter("T" + j, methodDefinition);
                                methodDefinition.GenericParameters.Add(genericParameter);
                            }
                        }
                    }
                    //address
                    ulong methodPointer;
                    if (methodDef.methodIndex >= 0)
                    {
                        methodPointer = il2cpp.methodPointers[methodDef.methodIndex];
                    }
                    else
                    {
                        il2cpp.genericMethoddDictionary.TryGetValue(i, out methodPointer);
                    }
                    if (methodPointer > 0)
                    {
                        var customAttribute = new CustomAttribute(typeDefinition.Module.Import(addressAttribute));
                        var rva             = new CustomAttributeNamedArgument("RVA", new CustomAttributeArgument(stringType, $"0x{methodPointer:X}"));
                        var offset          = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{il2cpp.MapVATR(methodPointer):X}"));
                        customAttribute.Fields.Add(rva);
                        customAttribute.Fields.Add(offset);
                        methodDefinition.CustomAttributes.Add(customAttribute);
                    }
                }
                //property
                var propertyEnd = typeDef.propertyStart + typeDef.property_count;
                for (var i = typeDef.propertyStart; i < propertyEnd; ++i)
                {
                    var              propertyDef  = metadata.propertyDefs[i];
                    var              propertyName = metadata.GetStringFromIndex(propertyDef.nameIndex);
                    TypeReference    propertyType = null;
                    MethodDefinition GetMethod    = null;
                    MethodDefinition SetMethod    = null;
                    if (propertyDef.get >= 0)
                    {
                        GetMethod    = methodDefinitionDic[typeDef.methodStart + propertyDef.get];
                        propertyType = GetMethod.ReturnType;
                    }
                    if (propertyDef.set >= 0)
                    {
                        SetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.set];
                        if (propertyType == null)
                        {
                            propertyType = SetMethod.Parameters[0].ParameterType;
                        }
                    }
                    var propertyDefinition = new PropertyDefinition(propertyName, (PropertyAttributes)propertyDef.attrs, propertyType)
                    {
                        GetMethod = GetMethod,
                        SetMethod = SetMethod
                    };
                    typeDefinition.Properties.Add(propertyDefinition);
                }
                //event
                var eventEnd = typeDef.eventStart + typeDef.event_count;
                for (var i = typeDef.eventStart; i < eventEnd; ++i)
                {
                    var eventDef        = metadata.eventDefs[i];
                    var eventName       = metadata.GetStringFromIndex(eventDef.nameIndex);
                    var eventType       = il2cpp.types[eventDef.typeIndex];
                    var eventTypeRef    = GetTypeReference(typeDefinition, eventType);
                    var eventDefinition = new EventDefinition(eventName, (EventAttributes)eventType.attrs, eventTypeRef);
                    if (eventDef.add >= 0)
                    {
                        eventDefinition.AddMethod = methodDefinitionDic[typeDef.methodStart + eventDef.add];
                    }
                    if (eventDef.remove >= 0)
                    {
                        eventDefinition.RemoveMethod = methodDefinitionDic[typeDef.methodStart + eventDef.remove];
                    }
                    if (eventDef.raise >= 0)
                    {
                        eventDefinition.InvokeMethod = methodDefinitionDic[typeDef.methodStart + eventDef.raise];
                    }
                    typeDefinition.Events.Add(eventDefinition);
                }
                //补充泛型参数
                if (typeDef.genericContainerIndex >= 0)
                {
                    var genericContainer = metadata.genericContainers[typeDef.genericContainerIndex];
                    if (genericContainer.type_argc > typeDefinition.GenericParameters.Count)
                    {
                        for (int j = typeDefinition.GenericParameters.Count + 1; j <= genericContainer.type_argc; j++)
                        {
                            var genericParameter = new GenericParameter("T" + j, typeDefinition);
                            typeDefinition.GenericParameters.Add(genericParameter);
                        }
                    }
                }
            }
            //第三遍,添加CustomAttribute。只添加SerializeField用于MonoBehaviour的反序列化
            if (il2cpp.version > 20)
            {
                var engine         = Assemblies.Find(x => x.MainModule.Types.Any(t => t.Namespace == "UnityEngine" && t.Name == "SerializeField"));
                var serializeField = engine.MainModule.Types.First(x => x.Name == "SerializeField").Methods.First();
                foreach (var imageDef in metadata.imageDefs)
                {
                    var typeEnd = imageDef.typeStart + imageDef.typeCount;
                    for (int index = imageDef.typeStart; index < typeEnd; index++)
                    {
                        var typeDef        = metadata.typeDefs[index];
                        var typeDefinition = typeDefinitionDic[index];
                        //field
                        var fieldEnd = typeDef.fieldStart + typeDef.field_count;
                        for (var i = typeDef.fieldStart; i < fieldEnd; ++i)
                        {
                            var fieldDef        = metadata.fieldDefs[i];
                            var fieldName       = metadata.GetStringFromIndex(fieldDef.nameIndex);
                            var fieldDefinition = typeDefinition.Fields.First(x => x.Name == fieldName);
                            //fieldAttribute
                            var attributeIndex = metadata.GetCustomAttributeIndex(imageDef, fieldDef.customAttributeIndex, fieldDef.token);
                            if (attributeIndex >= 0)
                            {
                                var attributeTypeRange = metadata.attributeTypeRanges[attributeIndex];
                                for (int j = 0; j < attributeTypeRange.count; j++)
                                {
                                    var attributeTypeIndex = metadata.attributeTypes[attributeTypeRange.start + j];
                                    var attributeType      = il2cpp.types[attributeTypeIndex];
                                    if (attributeType.type == Il2CppTypeEnum.IL2CPP_TYPE_CLASS)
                                    {
                                        var klass         = metadata.typeDefs[attributeType.data.klassIndex];
                                        var attributeName = metadata.GetStringFromIndex(klass.nameIndex);
                                        if (attributeName == "SerializeField")
                                        {
                                            var customAttribute = new CustomAttribute(typeDefinition.Module.Import(serializeField));
                                            fieldDefinition.CustomAttributes.Add(customAttribute);
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
Ejemplo n.º 2
0
        public DummyAssemblyGenerator(Metadata metadata, Il2Cpp il2Cpp)
        {
            this.metadata = metadata;
            this.il2Cpp   = il2Cpp;

            //Il2CppDummyDll
            var il2CppDummyDll = Il2CppDummyDll.Create();

            Assemblies.Add(il2CppDummyDll);
            var addressAttribute     = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AddressAttribute").Methods[0];
            var fieldOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "FieldOffsetAttribute").Methods[0];

            attributeAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AttributeAttribute").Methods[0];
            var metadataOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "MetadataOffsetAttribute").Methods[0];

            stringType = il2CppDummyDll.MainModule.TypeSystem.String;

            var resolver         = new MyAssemblyResolver();
            var moduleParameters = new ModuleParameters
            {
                Kind             = ModuleKind.Dll,
                AssemblyResolver = resolver
            };

            resolver.Register(il2CppDummyDll);

            var fieldDefinitionDic     = new Dictionary <int, FieldDefinition>();
            var methodDefinitionDic    = new Dictionary <int, MethodDefinition>();
            var parameterDefinitionDic = new Dictionary <int, ParameterDefinition>();
            var propertyDefinitionDic  = new Dictionary <int, PropertyDefinition>();
            var eventDefinitionDic     = new Dictionary <int, EventDefinition>();

            //创建程序集,同时创建所有类
            foreach (var imageDef in metadata.imageDefs)
            {
                var imageName          = metadata.GetStringFromIndex(imageDef.nameIndex);
                var assemblyName       = new AssemblyNameDefinition(imageName.Replace(".dll", ""), new Version("3.7.1.6"));
                var assemblyDefinition = AssemblyDefinition.CreateAssembly(assemblyName, imageName, moduleParameters);
                resolver.Register(assemblyDefinition);
                Assemblies.Add(assemblyDefinition);
                var moduleDefinition = assemblyDefinition.MainModule;
                moduleDefinition.Types.Clear();//清除自动创建的<Module>类
                var typeEnd = imageDef.typeStart + imageDef.typeCount;
                for (var index = imageDef.typeStart; index < typeEnd; ++index)
                {
                    var            typeDef       = metadata.typeDefs[index];
                    var            namespaceName = metadata.GetStringFromIndex(typeDef.namespaceIndex);
                    var            typeName      = metadata.GetStringFromIndex(typeDef.nameIndex);
                    TypeDefinition typeDefinition;
                    if (typeDef.declaringTypeIndex != -1)//nested types
                    {
                        typeDefinition = typeDefinitionDic[index];
                    }
                    else
                    {
                        typeDefinition = new TypeDefinition(namespaceName, typeName, (TypeAttributes)typeDef.flags);
                        moduleDefinition.Types.Add(typeDefinition);
                        typeDefinitionDic.Add(index, typeDefinition);
                    }
                    //nestedtype
                    for (int i = 0; i < typeDef.nested_type_count; i++)
                    {
                        var nestedIndex          = metadata.nestedTypeIndices[typeDef.nestedTypesStart + i];
                        var nestedTypeDef        = metadata.typeDefs[nestedIndex];
                        var nestedTypeDefinition = new TypeDefinition(metadata.GetStringFromIndex(nestedTypeDef.namespaceIndex), metadata.GetStringFromIndex(nestedTypeDef.nameIndex), (TypeAttributes)nestedTypeDef.flags);
                        typeDefinition.NestedTypes.Add(nestedTypeDefinition);
                        typeDefinitionDic.Add(nestedIndex, nestedTypeDefinition);
                    }
                }
            }
            //先单独处理,因为不知道会不会有问题
            for (var index = 0; index < metadata.typeDefs.Length; ++index)
            {
                var typeDef        = metadata.typeDefs[index];
                var typeDefinition = typeDefinitionDic[index];
                //parent
                if (typeDef.parentIndex >= 0)
                {
                    var parentType    = il2Cpp.types[typeDef.parentIndex];
                    var parentTypeRef = GetTypeReference(typeDefinition, parentType);
                    typeDefinition.BaseType = parentTypeRef;
                }
                //interfaces
                for (int i = 0; i < typeDef.interfaces_count; i++)
                {
                    var interfaceType    = il2Cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]];
                    var interfaceTypeRef = GetTypeReference(typeDefinition, interfaceType);
                    typeDefinition.Interfaces.Add(new InterfaceImplementation(interfaceTypeRef));
                }
            }
            //处理field, method, property等等
            for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++)
            {
                var imageDef = metadata.imageDefs[imageIndex];
                var typeEnd  = imageDef.typeStart + imageDef.typeCount;
                for (int index = imageDef.typeStart; index < typeEnd; index++)
                {
                    var typeDef        = metadata.typeDefs[index];
                    var typeDefinition = typeDefinitionDic[index];

                    //field
                    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 fieldName       = metadata.GetStringFromIndex(fieldDef.nameIndex);
                        var fieldTypeRef    = GetTypeReference(typeDefinition, fieldType);
                        var fieldDefinition = new FieldDefinition(fieldName, (FieldAttributes)fieldType.attrs, fieldTypeRef);
                        typeDefinition.Fields.Add(fieldDefinition);
                        fieldDefinitionDic.Add(i, fieldDefinition);
                        //fieldDefault
                        if (metadata.GetFieldDefaultValueFromIndex(i, out var fieldDefault) && fieldDefault.dataIndex != -1)
                        {
                            if (TryGetDefaultValue(fieldDefault.typeIndex, fieldDefault.dataIndex, out var value))
                            {
                                fieldDefinition.Constant = value;
                            }
                            else
                            {
                                var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(metadataOffsetAttribute));
                                var offset          = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{value:X}"));
                                customAttribute.Fields.Add(offset);
                                fieldDefinition.CustomAttributes.Add(customAttribute);
                            }
                        }
                        //fieldOffset
                        if (!fieldDefinition.IsLiteral)
                        {
                            var fieldOffset = il2Cpp.GetFieldOffsetFromIndex(index, i - typeDef.fieldStart, i, typeDefinition.IsValueType, fieldDefinition.IsStatic);
                            if (fieldOffset >= 0)
                            {
                                var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(fieldOffsetAttribute));
                                var offset          = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{fieldOffset:X}"));
                                customAttribute.Fields.Add(offset);
                                fieldDefinition.CustomAttributes.Add(customAttribute);
                            }
                        }
                    }
                    //method
                    var methodEnd = typeDef.methodStart + typeDef.method_count;
                    for (var i = typeDef.methodStart; i < methodEnd; ++i)
                    {
                        var methodDef        = metadata.methodDefs[i];
                        var methodName       = metadata.GetStringFromIndex(methodDef.nameIndex);
                        var methodDefinition = new MethodDefinition(methodName, (MethodAttributes)methodDef.flags, typeDefinition.Module.ImportReference(typeof(void)));
                        methodDefinition.ImplAttributes = (MethodImplAttributes)methodDef.iflags;
                        typeDefinition.Methods.Add(methodDefinition);
                        var methodReturnType = il2Cpp.types[methodDef.returnType];
                        var returnType       = GetTypeReferenceWithByRef(methodDefinition, methodReturnType);
                        methodDefinition.ReturnType = returnType;
                        if (methodDefinition.HasBody && typeDefinition.BaseType?.FullName != "System.MulticastDelegate")
                        {
                            var ilprocessor = methodDefinition.Body.GetILProcessor();
                            if (returnType.FullName == "System.Void")
                            {
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ret));
                            }
                            else if (returnType.IsValueType)
                            {
                                var variable = new VariableDefinition(returnType);
                                methodDefinition.Body.Variables.Add(variable);
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ldloca_S, variable));
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Initobj, returnType));
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ldloc_0));
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ret));
                            }
                            else
                            {
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ldnull));
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ret));
                            }
                        }
                        methodDefinitionDic.Add(i, methodDefinition);
                        //method parameter
                        for (var j = 0; j < methodDef.parameterCount; ++j)
                        {
                            var parameterDef        = metadata.parameterDefs[methodDef.parameterStart + j];
                            var parameterName       = metadata.GetStringFromIndex(parameterDef.nameIndex);
                            var parameterType       = il2Cpp.types[parameterDef.typeIndex];
                            var parameterTypeRef    = GetTypeReferenceWithByRef(methodDefinition, parameterType);
                            var parameterDefinition = new ParameterDefinition(parameterName, (ParameterAttributes)parameterType.attrs, parameterTypeRef);
                            methodDefinition.Parameters.Add(parameterDefinition);
                            parameterDefinitionDic.Add(methodDef.parameterStart + j, parameterDefinition);
                            //ParameterDefault
                            if (metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j, out var parameterDefault) && parameterDefault.dataIndex != -1)
                            {
                                if (TryGetDefaultValue(parameterDefault.typeIndex, parameterDefault.dataIndex, out var value))
                                {
                                    parameterDefinition.Constant = value;
                                }
                                else
                                {
                                    var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(metadataOffsetAttribute));
                                    var offset          = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{value:X}"));
                                    customAttribute.Fields.Add(offset);
                                    parameterDefinition.CustomAttributes.Add(customAttribute);
                                }
                            }
                        }
                        //补充泛型参数
                        if (methodDef.genericContainerIndex >= 0)
                        {
                            var genericContainer = metadata.genericContainers[methodDef.genericContainerIndex];
                            if (genericContainer.type_argc > methodDefinition.GenericParameters.Count)
                            {
                                for (int j = 0; j < genericContainer.type_argc; j++)
                                {
                                    var genericParameterIndex = genericContainer.genericParameterStart + j;
                                    if (!genericParameterDic.TryGetValue(genericParameterIndex, out var genericParameter))
                                    {
                                        CreateGenericParameter(genericParameterIndex, methodDefinition);
                                    }
                                    else
                                    {
                                        if (!methodDefinition.GenericParameters.Contains(genericParameter))
                                        {
                                            methodDefinition.GenericParameters.Add(genericParameter);
                                        }
                                    }
                                }
                            }
                        }
                        //methodAddress
                        var methodPointer = il2Cpp.GetMethodPointer(methodDef, imageIndex);
                        if (methodPointer > 0)
                        {
                            var customAttribute    = new CustomAttribute(typeDefinition.Module.ImportReference(addressAttribute));
                            var fixedMethodPointer = il2Cpp.GetRVA(methodPointer);
                            var rva    = new CustomAttributeNamedArgument("RVA", new CustomAttributeArgument(stringType, $"0x{fixedMethodPointer:X}"));
                            var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{il2Cpp.MapVATR(methodPointer):X}"));
                            var va     = new CustomAttributeNamedArgument("VA", new CustomAttributeArgument(stringType, $"0x{methodPointer:X}"));
                            customAttribute.Fields.Add(rva);
                            customAttribute.Fields.Add(offset);
                            customAttribute.Fields.Add(va);
                            if (methodDef.slot != ushort.MaxValue)
                            {
                                var slot = new CustomAttributeNamedArgument("Slot", new CustomAttributeArgument(stringType, methodDef.slot.ToString()));
                                customAttribute.Fields.Add(slot);
                            }
                            methodDefinition.CustomAttributes.Add(customAttribute);
                        }
                    }
                    //property
                    var propertyEnd = typeDef.propertyStart + typeDef.property_count;
                    for (var i = typeDef.propertyStart; i < propertyEnd; ++i)
                    {
                        var              propertyDef  = metadata.propertyDefs[i];
                        var              propertyName = metadata.GetStringFromIndex(propertyDef.nameIndex);
                        TypeReference    propertyType = null;
                        MethodDefinition GetMethod    = null;
                        MethodDefinition SetMethod    = null;
                        if (propertyDef.get >= 0)
                        {
                            GetMethod    = methodDefinitionDic[typeDef.methodStart + propertyDef.get];
                            propertyType = GetMethod.ReturnType;
                        }
                        if (propertyDef.set >= 0)
                        {
                            SetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.set];
                            if (propertyType == null)
                            {
                                propertyType = SetMethod.Parameters[0].ParameterType;
                            }
                        }
                        var propertyDefinition = new PropertyDefinition(propertyName, (PropertyAttributes)propertyDef.attrs, propertyType)
                        {
                            GetMethod = GetMethod,
                            SetMethod = SetMethod
                        };
                        typeDefinition.Properties.Add(propertyDefinition);
                        propertyDefinitionDic.Add(i, propertyDefinition);
                    }
                    //event
                    var eventEnd = typeDef.eventStart + typeDef.event_count;
                    for (var i = typeDef.eventStart; i < eventEnd; ++i)
                    {
                        var eventDef        = metadata.eventDefs[i];
                        var eventName       = metadata.GetStringFromIndex(eventDef.nameIndex);
                        var eventType       = il2Cpp.types[eventDef.typeIndex];
                        var eventTypeRef    = GetTypeReference(typeDefinition, eventType);
                        var eventDefinition = new EventDefinition(eventName, (EventAttributes)eventType.attrs, eventTypeRef);
                        if (eventDef.add >= 0)
                        {
                            eventDefinition.AddMethod = methodDefinitionDic[typeDef.methodStart + eventDef.add];
                        }
                        if (eventDef.remove >= 0)
                        {
                            eventDefinition.RemoveMethod = methodDefinitionDic[typeDef.methodStart + eventDef.remove];
                        }
                        if (eventDef.raise >= 0)
                        {
                            eventDefinition.InvokeMethod = methodDefinitionDic[typeDef.methodStart + eventDef.raise];
                        }
                        typeDefinition.Events.Add(eventDefinition);
                        eventDefinitionDic.Add(i, eventDefinition);
                    }
                    //补充泛型参数
                    if (typeDef.genericContainerIndex >= 0)
                    {
                        var genericContainer = metadata.genericContainers[typeDef.genericContainerIndex];
                        if (genericContainer.type_argc > typeDefinition.GenericParameters.Count)
                        {
                            for (int i = 0; i < genericContainer.type_argc; i++)
                            {
                                var genericParameterIndex = genericContainer.genericParameterStart + i;
                                if (!genericParameterDic.TryGetValue(genericParameterIndex, out var genericParameter))
                                {
                                    CreateGenericParameter(genericParameterIndex, typeDefinition);
                                }
                                else
                                {
                                    if (!typeDefinition.GenericParameters.Contains(genericParameter))
                                    {
                                        typeDefinition.GenericParameters.Add(genericParameter);
                                    }
                                }
                            }
                        }
                    }
                }
            }
            //第三遍,添加CustomAttribute
            if (il2Cpp.Version > 20)
            {
                PrepareCustomAttribute();
                foreach (var imageDef in metadata.imageDefs)
                {
                    var typeEnd = imageDef.typeStart + imageDef.typeCount;
                    for (int index = imageDef.typeStart; index < typeEnd; index++)
                    {
                        var typeDef        = metadata.typeDefs[index];
                        var typeDefinition = typeDefinitionDic[index];
                        //typeAttribute
                        CreateCustomAttribute(imageDef, typeDef.customAttributeIndex, typeDef.token, typeDefinition.Module, typeDefinition.CustomAttributes);

                        //field
                        var fieldEnd = typeDef.fieldStart + typeDef.field_count;
                        for (var i = typeDef.fieldStart; i < fieldEnd; ++i)
                        {
                            var fieldDef        = metadata.fieldDefs[i];
                            var fieldDefinition = fieldDefinitionDic[i];
                            //fieldAttribute
                            CreateCustomAttribute(imageDef, fieldDef.customAttributeIndex, fieldDef.token, typeDefinition.Module, fieldDefinition.CustomAttributes);
                        }

                        //method
                        var methodEnd = typeDef.methodStart + typeDef.method_count;
                        for (var i = typeDef.methodStart; i < methodEnd; ++i)
                        {
                            var methodDef        = metadata.methodDefs[i];
                            var methodDefinition = methodDefinitionDic[i];
                            //methodAttribute
                            CreateCustomAttribute(imageDef, methodDef.customAttributeIndex, methodDef.token, typeDefinition.Module, methodDefinition.CustomAttributes);

                            //method parameter
                            for (var j = 0; j < methodDef.parameterCount; ++j)
                            {
                                var parameterDef        = metadata.parameterDefs[methodDef.parameterStart + j];
                                var parameterDefinition = parameterDefinitionDic[methodDef.parameterStart + j];
                                //parameterAttribute
                                CreateCustomAttribute(imageDef, parameterDef.customAttributeIndex, parameterDef.token, typeDefinition.Module, parameterDefinition.CustomAttributes);
                            }
                        }

                        //property
                        var propertyEnd = typeDef.propertyStart + typeDef.property_count;
                        for (var i = typeDef.propertyStart; i < propertyEnd; ++i)
                        {
                            var propertyDef        = metadata.propertyDefs[i];
                            var propertyDefinition = propertyDefinitionDic[i];
                            //propertyAttribute
                            CreateCustomAttribute(imageDef, propertyDef.customAttributeIndex, propertyDef.token, typeDefinition.Module, propertyDefinition.CustomAttributes);
                        }

                        //event
                        var eventEnd = typeDef.eventStart + typeDef.event_count;
                        for (var i = typeDef.eventStart; i < eventEnd; ++i)
                        {
                            var eventDef        = metadata.eventDefs[i];
                            var eventDefinition = eventDefinitionDic[i];
                            //eventAttribute
                            CreateCustomAttribute(imageDef, eventDef.customAttributeIndex, eventDef.token, typeDefinition.Module, eventDefinition.CustomAttributes);
                        }
                    }
                }
            }
        }
Ejemplo n.º 3
0
        public DummyAssemblyGenerator(Il2CppExecutor il2CppExecutor, bool addToken)
        {
            executor = il2CppExecutor;
            metadata = il2CppExecutor.metadata;
            il2Cpp   = il2CppExecutor.il2Cpp;

            //Il2CppDummyDll
            var il2CppDummyDll = Il2CppDummyDll.Create();

            Assemblies.Add(il2CppDummyDll);
            var addressAttribute     = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AddressAttribute").Methods[0];
            var fieldOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "FieldOffsetAttribute").Methods[0];

            attributeAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AttributeAttribute").Methods[0];
            var metadataOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "MetadataOffsetAttribute").Methods[0];
            var tokenAttribute          = il2CppDummyDll.MainModule.Types.First(x => x.Name == "TokenAttribute").Methods[0];

            stringType = il2CppDummyDll.MainModule.TypeSystem.String;

            var resolver         = new MyAssemblyResolver();
            var moduleParameters = new ModuleParameters
            {
                Kind             = ModuleKind.Dll,
                AssemblyResolver = resolver
            };

            resolver.Register(il2CppDummyDll);

            var parameterDefinitionDic = new Dictionary <int, ParameterDefinition>();
            var eventDefinitionDic     = new Dictionary <int, EventDefinition>();

            //创建程序集,同时创建所有类
            foreach (var imageDef in metadata.imageDefs)
            {
                var     imageName    = metadata.GetStringFromIndex(imageDef.nameIndex);
                var     aname        = metadata.assemblyDefs[imageDef.assemblyIndex].aname;
                var     assemblyName = metadata.GetStringFromIndex(aname.nameIndex);
                Version vers;
                if (aname.build >= 0)
                {
                    vers = new Version(aname.major, aname.minor, aname.build, aname.revision);
                }
                else
                {
                    //__Generated
                    vers = new Version(3, 7, 1, 6);
                }
                var assemblyNameDef = new AssemblyNameDefinition(assemblyName, vers);

                /*assemblyNameDef.Culture = metadata.GetStringFromIndex(aname.cultureIndex);
                 * assemblyNameDef.PublicKey = Encoding.UTF8.GetBytes(metadata.GetStringFromIndex(aname.publicKeyIndex));
                 * assemblyNameDef.HashAlgorithm = (AssemblyHashAlgorithm)aname.hash_alg;
                 * assemblyNameDef.Attributes = (AssemblyAttributes)aname.flags;
                 * assemblyNameDef.PublicKeyToken = aname.public_key_token;*/
                var assemblyDefinition = AssemblyDefinition.CreateAssembly(assemblyNameDef, imageName, moduleParameters);
                resolver.Register(assemblyDefinition);
                Assemblies.Add(assemblyDefinition);
                var moduleDefinition = assemblyDefinition.MainModule;
                moduleDefinition.Types.Clear();//清除自动创建的<Module>类
                var typeEnd = imageDef.typeStart + imageDef.typeCount;
                for (var index = imageDef.typeStart; index < typeEnd; ++index)
                {
                    var typeDef        = metadata.typeDefs[index];
                    var namespaceName  = metadata.GetStringFromIndex(typeDef.namespaceIndex);
                    var typeName       = metadata.GetStringFromIndex(typeDef.nameIndex);
                    var typeDefinition = new TypeDefinition(namespaceName, typeName, (TypeAttributes)typeDef.flags);
                    typeDefinitionDic.Add(typeDef, typeDefinition);
                    if (typeDef.declaringTypeIndex == -1)
                    {
                        moduleDefinition.Types.Add(typeDefinition);
                    }
                }
            }
            foreach (var imageDef in metadata.imageDefs)
            {
                var typeEnd = imageDef.typeStart + imageDef.typeCount;
                for (var index = imageDef.typeStart; index < typeEnd; ++index)
                {
                    var typeDef        = metadata.typeDefs[index];
                    var typeDefinition = typeDefinitionDic[typeDef];

                    //nestedtype
                    for (int i = 0; i < typeDef.nested_type_count; i++)
                    {
                        var nestedIndex          = metadata.nestedTypeIndices[typeDef.nestedTypesStart + i];
                        var nestedTypeDef        = metadata.typeDefs[nestedIndex];
                        var nestedTypeDefinition = typeDefinitionDic[nestedTypeDef];
                        typeDefinition.NestedTypes.Add(nestedTypeDefinition);
                    }
                }
            }
            //提前处理
            foreach (var imageDef in metadata.imageDefs)
            {
                var typeEnd = imageDef.typeStart + imageDef.typeCount;
                for (var index = imageDef.typeStart; index < typeEnd; ++index)
                {
                    var typeDef        = metadata.typeDefs[index];
                    var typeDefinition = typeDefinitionDic[typeDef];

                    if (addToken)
                    {
                        var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute));
                        customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{typeDef.token:X}")));
                        typeDefinition.CustomAttributes.Add(customTokenAttribute);
                    }

                    //genericParameter
                    if (typeDef.genericContainerIndex >= 0)
                    {
                        var genericContainer = metadata.genericContainers[typeDef.genericContainerIndex];
                        for (int i = 0; i < genericContainer.type_argc; i++)
                        {
                            var genericParameterIndex = genericContainer.genericParameterStart + i;
                            var param            = metadata.genericParameters[genericParameterIndex];
                            var genericParameter = CreateGenericParameter(param, typeDefinition);
                            typeDefinition.GenericParameters.Add(genericParameter);
                        }
                    }

                    //parent
                    if (typeDef.parentIndex >= 0)
                    {
                        var parentType    = il2Cpp.types[typeDef.parentIndex];
                        var parentTypeRef = GetTypeReference(typeDefinition, parentType);
                        typeDefinition.BaseType = parentTypeRef;
                    }

                    //interfaces
                    for (int i = 0; i < typeDef.interfaces_count; i++)
                    {
                        var interfaceType    = il2Cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]];
                        var interfaceTypeRef = GetTypeReference(typeDefinition, interfaceType);
                        typeDefinition.Interfaces.Add(new InterfaceImplementation(interfaceTypeRef));
                    }
                }
            }
            //处理field, method, property等等
            foreach (var imageDef in metadata.imageDefs)
            {
                var imageName = metadata.GetStringFromIndex(imageDef.nameIndex);
                var typeEnd   = imageDef.typeStart + imageDef.typeCount;
                for (int index = imageDef.typeStart; index < typeEnd; index++)
                {
                    var typeDef        = metadata.typeDefs[index];
                    var typeDefinition = typeDefinitionDic[typeDef];

                    //field
                    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 fieldName       = metadata.GetStringFromIndex(fieldDef.nameIndex);
                        var fieldTypeRef    = GetTypeReference(typeDefinition, fieldType);
                        var fieldDefinition = new FieldDefinition(fieldName, (FieldAttributes)fieldType.attrs, fieldTypeRef);
                        typeDefinition.Fields.Add(fieldDefinition);
                        fieldDefinitionDic.Add(i, fieldDefinition);

                        if (addToken)
                        {
                            var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute));
                            customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{fieldDef.token:X}")));
                            fieldDefinition.CustomAttributes.Add(customTokenAttribute);
                        }

                        //fieldDefault
                        if (metadata.GetFieldDefaultValueFromIndex(i, out var fieldDefault) && fieldDefault.dataIndex != -1)
                        {
                            if (executor.TryGetDefaultValue(fieldDefault.typeIndex, fieldDefault.dataIndex, out var value))
                            {
                                fieldDefinition.Constant = value;
                            }
                            else
                            {
                                var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(metadataOffsetAttribute));
                                var offset          = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{value:X}"));
                                customAttribute.Fields.Add(offset);
                                fieldDefinition.CustomAttributes.Add(customAttribute);
                            }
                        }
                        //fieldOffset
                        if (!fieldDefinition.IsLiteral)
                        {
                            var fieldOffset = il2Cpp.GetFieldOffsetFromIndex(index, i - typeDef.fieldStart, i, typeDefinition.IsValueType, fieldDefinition.IsStatic);
                            if (fieldOffset >= 0)
                            {
                                var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(fieldOffsetAttribute));
                                var offset          = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{fieldOffset:X}"));
                                customAttribute.Fields.Add(offset);
                                fieldDefinition.CustomAttributes.Add(customAttribute);
                            }
                        }
                    }
                    //method
                    var methodEnd = typeDef.methodStart + typeDef.method_count;
                    for (var i = typeDef.methodStart; i < methodEnd; ++i)
                    {
                        var methodDef        = metadata.methodDefs[i];
                        var methodName       = metadata.GetStringFromIndex(methodDef.nameIndex);
                        var methodDefinition = new MethodDefinition(methodName, (MethodAttributes)methodDef.flags, typeDefinition.Module.ImportReference(typeof(void)));
                        methodDefinition.ImplAttributes = (MethodImplAttributes)methodDef.iflags;
                        typeDefinition.Methods.Add(methodDefinition);
                        //genericParameter
                        if (methodDef.genericContainerIndex >= 0)
                        {
                            var genericContainer = metadata.genericContainers[methodDef.genericContainerIndex];
                            for (int j = 0; j < genericContainer.type_argc; j++)
                            {
                                var genericParameterIndex = genericContainer.genericParameterStart + j;
                                var param            = metadata.genericParameters[genericParameterIndex];
                                var genericParameter = CreateGenericParameter(param, methodDefinition);
                                methodDefinition.GenericParameters.Add(genericParameter);
                            }
                        }
                        var methodReturnType = il2Cpp.types[methodDef.returnType];
                        var returnType       = GetTypeReferenceWithByRef(methodDefinition, methodReturnType);
                        methodDefinition.ReturnType = returnType;

                        if (addToken)
                        {
                            var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute));
                            customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{methodDef.token:X}")));
                            methodDefinition.CustomAttributes.Add(customTokenAttribute);
                        }

                        if (methodDefinition.HasBody && typeDefinition.BaseType?.FullName != "System.MulticastDelegate")
                        {
                            var ilprocessor = methodDefinition.Body.GetILProcessor();
                            if (returnType.FullName == "System.Void")
                            {
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ret));
                            }
                            else if (returnType.IsValueType)
                            {
                                var variable = new VariableDefinition(returnType);
                                methodDefinition.Body.Variables.Add(variable);
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ldloca_S, variable));
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Initobj, returnType));
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ldloc_0));
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ret));
                            }
                            else
                            {
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ldnull));
                                ilprocessor.Append(ilprocessor.Create(OpCodes.Ret));
                            }
                        }
                        methodDefinitionDic.Add(i, methodDefinition);
                        //method parameter
                        for (var j = 0; j < methodDef.parameterCount; ++j)
                        {
                            var parameterDef        = metadata.parameterDefs[methodDef.parameterStart + j];
                            var parameterName       = metadata.GetStringFromIndex(parameterDef.nameIndex);
                            var parameterType       = il2Cpp.types[parameterDef.typeIndex];
                            var parameterTypeRef    = GetTypeReferenceWithByRef(methodDefinition, parameterType);
                            var parameterDefinition = new ParameterDefinition(parameterName, (ParameterAttributes)parameterType.attrs, parameterTypeRef);
                            methodDefinition.Parameters.Add(parameterDefinition);
                            parameterDefinitionDic.Add(methodDef.parameterStart + j, parameterDefinition);
                            //ParameterDefault
                            if (metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j, out var parameterDefault) && parameterDefault.dataIndex != -1)
                            {
                                if (executor.TryGetDefaultValue(parameterDefault.typeIndex, parameterDefault.dataIndex, out var value))
                                {
                                    parameterDefinition.Constant = value;
                                }
                                else
                                {
                                    var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(metadataOffsetAttribute));
                                    var offset          = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{value:X}"));
                                    customAttribute.Fields.Add(offset);
                                    parameterDefinition.CustomAttributes.Add(customAttribute);
                                }
                            }
                        }
                        //methodAddress
                        if (!methodDefinition.IsAbstract)
                        {
                            var methodPointer = il2Cpp.GetMethodPointer(imageName, methodDef);
                            if (methodPointer > 0)
                            {
                                var customAttribute    = new CustomAttribute(typeDefinition.Module.ImportReference(addressAttribute));
                                var fixedMethodPointer = il2Cpp.GetRVA(methodPointer);
                                var rva    = new CustomAttributeNamedArgument("RVA", new CustomAttributeArgument(stringType, $"0x{fixedMethodPointer:X}"));
                                var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{il2Cpp.MapVATR(methodPointer):X}"));
                                var va     = new CustomAttributeNamedArgument("VA", new CustomAttributeArgument(stringType, $"0x{methodPointer:X}"));
                                customAttribute.Fields.Add(rva);
                                customAttribute.Fields.Add(offset);
                                customAttribute.Fields.Add(va);
                                if (methodDef.slot != ushort.MaxValue)
                                {
                                    var slot = new CustomAttributeNamedArgument("Slot", new CustomAttributeArgument(stringType, methodDef.slot.ToString()));
                                    customAttribute.Fields.Add(slot);
                                }
                                methodDefinition.CustomAttributes.Add(customAttribute);
                            }
                        }
                    }
                    //property
                    var propertyEnd = typeDef.propertyStart + typeDef.property_count;
                    for (var i = typeDef.propertyStart; i < propertyEnd; ++i)
                    {
                        var              propertyDef  = metadata.propertyDefs[i];
                        var              propertyName = metadata.GetStringFromIndex(propertyDef.nameIndex);
                        TypeReference    propertyType = null;
                        MethodDefinition GetMethod    = null;
                        MethodDefinition SetMethod    = null;
                        if (propertyDef.get >= 0)
                        {
                            GetMethod    = methodDefinitionDic[typeDef.methodStart + propertyDef.get];
                            propertyType = GetMethod.ReturnType;
                        }
                        if (propertyDef.set >= 0)
                        {
                            SetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.set];
                            if (propertyType == null)
                            {
                                propertyType = SetMethod.Parameters[0].ParameterType;
                            }
                        }
                        var propertyDefinition = new PropertyDefinition(propertyName, (PropertyAttributes)propertyDef.attrs, propertyType)
                        {
                            GetMethod = GetMethod,
                            SetMethod = SetMethod
                        };
                        typeDefinition.Properties.Add(propertyDefinition);
                        propertyDefinitionDic.Add(i, propertyDefinition);

                        if (addToken)
                        {
                            var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute));
                            customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{propertyDef.token:X}")));
                            propertyDefinition.CustomAttributes.Add(customTokenAttribute);
                        }
                    }
                    //event
                    var eventEnd = typeDef.eventStart + typeDef.event_count;
                    for (var i = typeDef.eventStart; i < eventEnd; ++i)
                    {
                        var eventDef        = metadata.eventDefs[i];
                        var eventName       = metadata.GetStringFromIndex(eventDef.nameIndex);
                        var eventType       = il2Cpp.types[eventDef.typeIndex];
                        var eventTypeRef    = GetTypeReference(typeDefinition, eventType);
                        var eventDefinition = new EventDefinition(eventName, (EventAttributes)eventType.attrs, eventTypeRef);
                        if (eventDef.add >= 0)
                        {
                            eventDefinition.AddMethod = methodDefinitionDic[typeDef.methodStart + eventDef.add];
                        }
                        if (eventDef.remove >= 0)
                        {
                            eventDefinition.RemoveMethod = methodDefinitionDic[typeDef.methodStart + eventDef.remove];
                        }
                        if (eventDef.raise >= 0)
                        {
                            eventDefinition.InvokeMethod = methodDefinitionDic[typeDef.methodStart + eventDef.raise];
                        }
                        typeDefinition.Events.Add(eventDefinition);
                        eventDefinitionDic.Add(i, eventDefinition);

                        if (addToken)
                        {
                            var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute));
                            customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{eventDef.token:X}")));
                            eventDefinition.CustomAttributes.Add(customTokenAttribute);
                        }
                    }
                }
            }
            //第三遍,添加CustomAttribute
            if (il2Cpp.Version > 20)
            {
                foreach (var imageDef in metadata.imageDefs)
                {
                    var typeEnd = imageDef.typeStart + imageDef.typeCount;
                    for (int index = imageDef.typeStart; index < typeEnd; index++)
                    {
                        var typeDef        = metadata.typeDefs[index];
                        var typeDefinition = typeDefinitionDic[typeDef];
                        //typeAttribute
                        CreateCustomAttribute(imageDef, typeDef.customAttributeIndex, typeDef.token, typeDefinition.Module, typeDefinition.CustomAttributes);

                        //field
                        var fieldEnd = typeDef.fieldStart + typeDef.field_count;
                        for (var i = typeDef.fieldStart; i < fieldEnd; ++i)
                        {
                            var fieldDef        = metadata.fieldDefs[i];
                            var fieldDefinition = fieldDefinitionDic[i];
                            //fieldAttribute
                            CreateCustomAttribute(imageDef, fieldDef.customAttributeIndex, fieldDef.token, typeDefinition.Module, fieldDefinition.CustomAttributes);
                        }

                        //method
                        var methodEnd = typeDef.methodStart + typeDef.method_count;
                        for (var i = typeDef.methodStart; i < methodEnd; ++i)
                        {
                            var methodDef        = metadata.methodDefs[i];
                            var methodDefinition = methodDefinitionDic[i];
                            //methodAttribute
                            CreateCustomAttribute(imageDef, methodDef.customAttributeIndex, methodDef.token, typeDefinition.Module, methodDefinition.CustomAttributes);

                            //method parameter
                            for (var j = 0; j < methodDef.parameterCount; ++j)
                            {
                                var parameterDef        = metadata.parameterDefs[methodDef.parameterStart + j];
                                var parameterDefinition = parameterDefinitionDic[methodDef.parameterStart + j];
                                //parameterAttribute
                                CreateCustomAttribute(imageDef, parameterDef.customAttributeIndex, parameterDef.token, typeDefinition.Module, parameterDefinition.CustomAttributes);
                            }
                        }

                        //property
                        var propertyEnd = typeDef.propertyStart + typeDef.property_count;
                        for (var i = typeDef.propertyStart; i < propertyEnd; ++i)
                        {
                            var propertyDef        = metadata.propertyDefs[i];
                            var propertyDefinition = propertyDefinitionDic[i];
                            //propertyAttribute
                            CreateCustomAttribute(imageDef, propertyDef.customAttributeIndex, propertyDef.token, typeDefinition.Module, propertyDefinition.CustomAttributes);
                        }

                        //event
                        var eventEnd = typeDef.eventStart + typeDef.event_count;
                        for (var i = typeDef.eventStart; i < eventEnd; ++i)
                        {
                            var eventDef        = metadata.eventDefs[i];
                            var eventDefinition = eventDefinitionDic[i];
                            //eventAttribute
                            CreateCustomAttribute(imageDef, eventDef.customAttributeIndex, eventDef.token, typeDefinition.Module, eventDefinition.CustomAttributes);
                        }
                    }
                }
            }
        }