diff --git a/libil2cpp/huatuo-compatible-adaptor.h b/libil2cpp/huatuo-compatible-adaptor.h
new file mode 100644
index 0000000..b4f8eec
--- /dev/null
+++ b/libil2cpp/huatuo-compatible-adaptor.h
@@ -0,0 +1,117 @@
+#pragma once
+#include "il2cpp-config.h"
+#include "il2cpp-class-internals.h"
+
+#include "Baselib.h"
+#include "vm/Array.h"
+#include "vm/Type.h"
+#include "vm/Runtime.h"
+#include "icalls/mscorlib/System/Type.h"
+#include "icalls/mscorlib/System/MonoType.h"
+
+#if IL2CPP_BYTE_ORDER != IL2CPP_LITTLE_ENDIAN
+#error "only support litten endian"
+#endif
+
+#if	PLATFORM_ARCH_64 != 1
+#error "only support 64bit"
+#endif
+
+
+#ifndef ENABLE_PLACEHOLDER_DLL
+#define ENABLE_PLACEHOLDER_DLL 1
+#endif
+
+#define HUATUO_UNITY_2020_OR_NEW
+
+#define IS_CLASS_VALUE_TYPE(klass) ((klass)->valuetype)
+#define IS_CCTOR_FINISH_OR_NO_CCTOR(klass) ((klass)->cctor_finished) || !((klass)->has_cctor)
+#define GET_METHOD_PARAMETER_TYPE(param) param.parameter_type
+#define GET_ARRAY_ELEMENT_ADDRESS load_array_elema
+#define GET_CUSTOM_ATTRIBUTE_TYPE_RANGE_START(tr) ((tr).start)
+
+#define SET_IL2CPPTYPE_VALUE_TYPE(type, v) 
+#define GET_IL2CPPTYPE_VALUE_TYPE(type)
+
+#define VALUE_TYPE_METHOD_POINTER_IS_ADJUST_METHOD 1
+
+//#define ADJUST_VALUE_TYPE_THIS_POINTER(newPtr, oldPtr) newPtr = oldPtr - 1
+//// #define RECOVERY_VALUE_TYPE_THIS_POINTER(newPtr, oldPtr) newPtr = oldPtr + 1
+//#define CHECK_UNADJUST_VALUE_TYPE_THIS_POINTER(klass, ptr)
+
+namespace huatuo
+{
+
+	inline Il2CppReflectionType* GetReflectionTypeFromName(Il2CppString* name)
+	{
+		return il2cpp::icalls::mscorlib::System::Type::internal_from_name(name, true, false);
+	}
+
+	inline void ConstructDelegate(Il2CppDelegate* delegate, Il2CppObject* target, const MethodInfo* method)
+	{
+		il2cpp::vm::Type::ConstructDelegate(delegate, target, method->methodPointer, method);
+	}
+
+	inline const MethodInfo* GetGenericVirtualMethod(const MethodInfo* result, const MethodInfo* inflateMethod)
+	{
+		return il2cpp::vm::Runtime::GetGenericVirtualMethod(result, inflateMethod);
+	}
+
+	inline void InitNullableValueType(void* nullableValueTypeObj, void* data, Il2CppClass* klass)
+	{
+		uint32_t size = klass->castClass->instance_size - sizeof(Il2CppObject);
+		*((uint8_t*)nullableValueTypeObj + size) = 1;
+		memcpy(nullableValueTypeObj, data, size);
+	}
+
+	inline void NewNullableValueType(void* nullableValueTypeObj, void* data, Il2CppClass* klass)
+	{
+		uint32_t size = klass->castClass->instance_size - sizeof(Il2CppObject);
+		*((uint8_t*)nullableValueTypeObj + size) = 1;
+		memcpy(nullableValueTypeObj, data, size);
+	}
+
+	inline bool IsNullableHasValue(void* nullableValueObj, Il2CppClass* klass)
+	{
+		uint32_t size = klass->castClass->instance_size - sizeof(Il2CppObject);
+		return *((uint8_t*)nullableValueObj + size);
+	}
+
+	inline void GetNullableValueOrDefault(void* dst, void* nullableValueObj, Il2CppClass* klass)
+	{
+		uint32_t size = klass->castClass->instance_size - sizeof(Il2CppObject);
+		if (*((uint8_t*)nullableValueObj + size))
+		{
+			std::memcpy(dst, nullableValueObj, size);
+		}
+		else
+		{
+			std::memset(dst, 0, size);
+		}
+	}
+
+	inline void GetNullableValueOrDefault(void* dst, void* nullableValueObj, void* defaultData, Il2CppClass* klass)
+	{
+		uint32_t size = klass->castClass->instance_size - sizeof(Il2CppObject);
+		std::memcpy(dst, *((uint8_t*)nullableValueObj + size) ? nullableValueObj : defaultData, size);
+	}
+
+	inline void GetNullableValue(void* dst, void* nullableValueObj, Il2CppClass* klass)
+	{
+		uint32_t size = klass->castClass->instance_size - sizeof(Il2CppObject);
+		if (*((uint8_t*)nullableValueObj + size))
+		{
+			std::memcpy(dst, nullableValueObj, size);
+		}
+		else
+		{
+			il2cpp::vm::Exception::Raise(il2cpp::vm::Exception::GetInvalidOperationException("Nullable object must have a value."));
+		}
+	}
+
+	inline Il2CppString* GetKlassFullName(const Il2CppType* type)
+	{
+		Il2CppReflectionType* refType = il2cpp::icalls::mscorlib::System::Type::internal_from_handle((intptr_t)type);
+		return il2cpp::icalls::mscorlib::System::MonoType::getFullName(refType, true, false);
+	}
+}
\ No newline at end of file