support refl method default value

engine/3rdparty/zlib/include/refl/detail/field.h

@@ -6,22 +6,42 @@ using Ubpa::Name;
 using Ubpa::type_name;
 namespace refl {
 	class UClass;
+	class ArgsView;
+
 	using Offset = uint32_t;
 	using Method = void(*)(...);
+
+	using DefaultMember = const ArgsView (*)();
+	using DefaultMethod = std::pair<ArgsView*, int>(*)();
+
 	enum FieldFlag:uint32_t {
 		FIELD_NONE_FLAG				= 0,
 		FIELD_MEMBER_FLAG			= 1 << 0,
 		FIELD_ATTRIBUTE_FLAG		= 1 << 1,
 		FIELD_METHOD_FLAG			= 1 << 2,
+		FIELD_METHOD_VALUE_FLAG     = 1 << 3
 	};
 	struct FieldPtr {
-		using Data = std::variant<
+		union Data
-			Offset,     // offset
+		{
-			Method	    // method
+			Offset offset;
-		>;
+			Method method;
+			Data() : method(nullptr) {}
+			Data(Offset& offset) : offset(offset) {}
+			Data(Method& method) : method(method) {}
+		};
+		union Default {
+			DefaultMember member;
+			DefaultMethod method;
+			Default(): method(nullptr) {}
+			Default(DefaultMember& member) : member(member) {}
+			Default(DefaultMethod& method) : method(method) {}
+		};
 		Name name;
 		const UClass* type;
 		Data data;
+		Default value;
 		uint32_t flag;
 	};
+
 }

engine/3rdparty/zlib/include/refl/detail/type.h

@@ -4,20 +4,13 @@ namespace refl {
 	template <class T>
 	concept _ReflCheck_Ctor = requires { T(); };
 	template <class T>
-	concept _ReflCheck_UClass = requires{{T::BuildClass()} -> std::same_as<typename T::MyUClass>; };
+	concept _ReflCheck_UClass = requires(typename T::MyUClass& cls) { T::BuildClass(cls); } ;
 	template <class T>
 	concept _ReflCheck_Ctor_NoUClass = _ReflCheck_Ctor<T> && !_ReflCheck_UClass<T>;
-		
 	//类型接口
 	template<typename T>
 	struct TypeInfoImpl;
 
-	template<_ReflCheck_UClass T>
-	struct TypeInfoImpl<T> {
-		using MyUClass = typename T::MyUClass;
-		inline static MyUClass StaticClass = T::BuildClass();
-	};
-
 	template<typename T>
 	struct RealTypeImpl {
 		using type = std::remove_cv_t<std::remove_reference_t<T>>;

engine/3rdparty/zlib/include/refl/detail/uclass.h

@@ -5,8 +5,6 @@
 namespace refl {
 	struct vtable_uclass
 	{
-		//object
-		void (*InitObject)(void*);
 		//class
 		const FieldPtr* (*GetField)(const UClass*, const Name&, bool);
 		//function
@@ -14,6 +12,10 @@ namespace refl {
 		//function
 		void (*Call)(const FieldPtr&, std::vector<ArgsView>&);
 
+		//object
+		void (*InitObject)(void*);
+		void (*CopyObject)(void*, const void*);
+		void (*DestObject)(void*);
 	};
 	class UClass{
 		using enum FieldFlag;
@@ -70,20 +72,6 @@ namespace refl {
 			return false;
 		}
 	public:
-		template<_ReflCheck_Ctor T>
-		static void InitObject(void* ptr) {
-			T obj{};
-			std::construct_at((T*)ptr, obj);
-		}
-		//unsafe if called by other, need check class && size
-		void InitObject(void* ptr)const {
-			if (vtable.InitObject) {
-				vtable.InitObject(ptr);
-			}
-			else {
-				memset(ptr, 0, size);
-			}
-		}
 		const FieldPtr* GetField(const Name& name, bool isMethod)const {
 			if (vtable.GetField) {
 				return vtable.GetField(this, name, isMethod);
@@ -101,24 +89,36 @@ namespace refl {
 				return vtable.Call(field, ArgsList);
 			}
 		}
+		void InitObject(void* ptr)const {
+			if (vtable.InitObject) {
+				vtable.InitObject(ptr);
+			}
+			else {
+				memset(ptr, 0, size);
+			}
+		}
+		void CopyObject(void* dst, const void* src)const {
+			if (vtable.CopyObject) {
+				vtable.CopyObject(dst, src);
+			}
+			else {
+				memcpy(dst, src, size);
+			}
+		}
+		void DestObject(void* ptr)const {
+			if (vtable.DestObject) {
+				vtable.DestObject(ptr);
+			}
+		}
 	public:
-		template<Offset offset>
+		template<_ReflCheck_Ctor T>
-		constexpr static FieldPtr MakeMemberField(Name name, const UClass* cls) {
+		static void InitObject(void* ptr) {
-			FieldPtr::Data member = { offset };
+			T obj{};
-			constexpr uint32_t flag = FIELD_MEMBER_FLAG | FIELD_ATTRIBUTE_FLAG;
+			std::construct_at((T*)ptr, obj);
-			return { name, cls, {member}, flag };
 		}
-		template<typename R, typename ...Args>
+		template<typename T>
-		static FieldPtr MakeMethodField(R (* ptr)(Args...), Name name) {
+		static void CopyObject(void* dst, const void* src) {
-			FieldPtr::Data member = { *(Method*)&ptr};
+			*(T*)dst = *(T*)src;
-			constexpr uint32_t flag = FIELD_METHOD_FLAG;
-			return { name, &TypeInfo<R(*)(typename RealTypeImpl<Args>::type...)>::StaticClass, {member},flag };
-		}
-		template<typename T, typename R, typename ...Args>
-		static FieldPtr MakeMethodField(R(T::* ptr)(Args...), Name name) {
-			FieldPtr::Data member = { *(Method*)&ptr };
-			constexpr uint32_t flag = FIELD_MEMBER_FLAG | FIELD_METHOD_FLAG;
-			return { name, &TypeInfo<R(*)(const void*, typename RealTypeImpl<Args>::type...)>::StaticClass, {member},flag };
 		}
 	};
 }

engine/3rdparty/zlib/include/refl/detail/uclass.inl

@@ -5,12 +5,13 @@ namespace refl {
 	class UClass_Auto : public UClass {
 	public:
 		using UClass::UClass;
-		using UClassType = UClass_Auto<T>;
+		using MyUClass = UClass_Auto<T>;
 	public:
-		constexpr static UClassType BuildClass() {
+		constexpr static MyUClass BuildClass() {
-			UClassType cls(type_name<T>().View(), sizeof(T));
+			MyUClass cls(type_name<T>().View(), sizeof(T));
 			if constexpr (!std::is_trivially_copyable_v<T>) {
-				cls.vtable.InitObject = &UClass::InitObject<T>;
+				cls.vtable.InitObject = &MyUClass::InitObject<T>;
+				cls.vtable.CopyObject = &MyUClass::CopyObject<T>;
 			}
 			return cls;
 		}
@@ -25,22 +26,22 @@ namespace refl {
 	class UMethod_Auto : public UClass {
 		using UClass::UClass;
 		using MethodType = R(*)(Args...);
-		using UClassType = UMethod_Auto<R, Args...>;
+		using MyUClass = UMethod_Auto<R, Args...>;
 	public:
 		std::array<const UClass*, sizeof...(Args) + 1> UList{};
 
 		static std::vector<const UClass*> GetParams(const UClass* cls) {
-			auto& UList = static_cast<const UClassType*>(cls)->UList;
+			auto& UList = static_cast<const MyUClass*>(cls)->UList;
 			return { UList.data(), UList.data() + UList.size() };
 		}
 		static void Call(const FieldPtr& field, std::vector<ArgsView>& ArgsList) {
 			if constexpr (std::is_same_v<R, void>) {
-				MethodType fptr = (MethodType)std::get<Method>(field.data);
+				MethodType fptr = (MethodType)field.data.method;
 				auto param = ArgsList.rbegin();
 				fptr(param++->cast_to<Args>()...);
 			}
 			else {
-				MethodType fptr = (MethodType)std::get<Method>(field.data);
+				MethodType fptr = (MethodType)field.data.method;
 				auto param = ArgsList.rbegin();
 				auto ret = ArgsList.begin();
 				if (ret->cls == &TypeInfo<R>::StaticClass) {
@@ -63,10 +64,10 @@ namespace refl {
 		}
 	public:
 		//为了简化判断，cls 对象 统统指向 T*
-		constexpr static UClassType BuildClass() {
+		constexpr static MyUClass BuildClass() {
-			UClassType cls(type_name<MethodType>().View(), sizeof(MethodType));
+			MyUClass cls(type_name<MethodType>().View(), sizeof(MethodType));
-			cls.vtable.GetParams = &UClassType::GetParams;
+			cls.vtable.GetParams = &MyUClass::GetParams;
-			cls.vtable.Call = &UClassType::Call;
+			cls.vtable.Call = &MyUClass::Call;
 			cls.BuildUList();
 			return cls;
 		}
@@ -93,9 +94,12 @@ namespace refl {
 			}
 			return nullptr;
 		}
+		/*
 		void BuildClass() {
+			FList.shrink_to_fit();//缩减容量，FList大小不再改变了
 			vtable.GetField = &UClass_Custom::GetField;
 		}
+		*/
 	};
 	//基础类型的偏特化
 	template<_ReflCheck_Ctor_NoUClass T>
@@ -110,4 +114,28 @@ namespace refl {
 		using UClass = UMethod_Auto<R, Args...>;
 		inline constexpr static UClass StaticClass = UClass::BuildClass();
 	};
+
+	template<_ReflCheck_UClass T>
+	struct TypeInfoImpl<T> {
+		using MyUClass = typename T::MyUClass;
+		inline static MyUClass StaticClass = []()->MyUClass {
+			MyUClass cls(type_name<T>().View(), sizeof(T));
+			T::BuildClass(cls);
+			auto& vtable = cls.vtable;
+			if (!vtable.GetField) {
+				vtable.GetField = &MyUClass::GetField;
+			}
+			if constexpr (!std::is_trivially_copyable_v<T>) {
+				if (!vtable.InitObject) {
+					//这里一定会创建一个InitObject<T> 模板函数，如何优化
+					vtable.InitObject = &UClass::InitObject<T>;
+				}
+				if (!vtable.CopyObject) {
+					//这里一定会创建一个CopyObject<T> 模板函数，如何优化
+					vtable.CopyObject = &UClass::CopyObject<T>;
+				}
+			}
+			return cls;
+		}();
+	};
 }

engine/3rdparty/zlib/include/refl/detail/view.h

@@ -26,14 +26,22 @@ namespace refl {
 
 		ObjectView Parent();
 	};
-	class ArgsView {
+	//生命周期短，适用于传参，不建议保存数据
+	//这里类型丢失了呀，存入的都是指针数据
+	struct ArgsView {
 	public:
 		const void* val;
 		const UClass* cls;
 		ArgsView(const void* val = nullptr, const UClass* cls = nullptr) : val(val), cls(cls) {}
+		//右值=>右值压入栈，caller入栈地址
+		//左值=>caller变量地址
 		template<typename T>
-		ArgsView(T&& v): val(&v), cls(&TypeInfo<typename std::remove_reference_t<T>*>::StaticClass){}
+		ArgsView(T&& v): val(&v), cls(&TypeInfo<typename std::remove_reference_t<T>*>::StaticClass){
-
+			if constexpr (std::is_same_v<std::remove_reference_t<T>, ArgsView>) {
+				val = v.val;
+				cls = v.cls;
+			}
+		}
 		template<typename T>
 		constexpr inline T cast_to() {
 			if constexpr (std::is_pointer_v<T>) {
@@ -48,4 +56,17 @@ namespace refl {
 		}
 		bool ConvertTo(const UClass* toClass);
 	};
+	//存入的是真实的数据类型,type用于拷贝数据
+	struct ArgsValue : public ArgsView {
+		const UClass* type;
+		template<typename T>
+		ArgsValue(T&& t) : ArgsView(t), type(&TypeInfo<T>::StaticClass){}
+	};
+	struct ArgsValueList{
+		void* data{ nullptr };
+		ArgsView* ptr{nullptr};
+		int num{ 0 };
+		ArgsValueList(const std::vector<ArgsValue>& args);
+		~ArgsValueList();
+	};
 }

engine/3rdparty/zlib/include/refl/detail/view.inl

@@ -7,7 +7,7 @@ namespace refl {
 		if (cache && cache->name == name) {
 		_cache_get: bool isChild = cache->type->IsChildOf<T>(true);
 			if (isChild) {
-				t = *(T*)(ptr + std::get<uint32_t>(cache->data));
+				t = *(T*)(ptr + cache->data.offset);
 			}
 			return isChild;
 		}
@@ -25,10 +25,9 @@ namespace refl {
 	inline bool ObjectView::Set(const Name& name, const T& t)
 	{
 		if (cache && cache->name == name) {
-
 		_cache_set: bool isChild = cache->type->IsChildOf<T>(true);
 			if (isChild) {
-				*(T*)(ptr + std::get<uint32_t>(cache->data)) = t;
+				*(T*)(ptr + cache->data.offset) = t;
 			}
 			return isChild;
 		}
@@ -55,17 +54,33 @@ namespace refl {
 		constexpr int inputSize = sizeof...(Args);
 		auto params = field->type->GetParams();
 		int paramsSize = params.size();
-		bool member = field->flag & FIELD_MEMBER_FLAG;
+
-		if (inputSize + member >= paramsSize) {
-			return false;
-		}
 		std::vector<ArgsView> ArgsList;
 		ArgsList.reserve(paramsSize);
 		ArgsList.emplace_back();
+
+		bool member = field->flag & FIELD_MEMBER_FLAG;
 		if (member) {
 			ArgsList.emplace_back(ptr, &TypeInfo<const void*>::StaticClass);
 		}
 		(..., (ArgsList.emplace_back(args)));
+
+
+		int argsSize = ArgsList.size();
+		if (argsSize < paramsSize && field->flag & FIELD_METHOD_VALUE_FLAG) {
+			auto [argsPtr, valueSize] = field->value.method();
+			if (argsSize + valueSize >= paramsSize) {
+				for (int i = valueSize + argsSize - paramsSize; i < valueSize; i++) {
+					ArgsList.push_back(*(argsPtr + i));
+				}
+				argsSize = paramsSize;
+			}
+		}
+
+		if (argsSize < paramsSize) {
+			return false;
+		}
+
 		for (int i = member + 1; i < paramsSize; i++) {
 			if (ArgsList[i].cls != params[i] && !ArgsList[i].ConvertTo(params[i])) {
 				return false;
@@ -123,4 +138,35 @@ namespace refl {
 		}
 		return false;
 	}
+	ArgsValueList::ArgsValueList(const std::vector<ArgsValue>& args) {
+		num = args.size();
+		int size = num * sizeof(ArgsView);
+		for (auto& arg : args) {
+			size += arg.cls->size;
+		}
+		data = (void*)malloc(size);
+		ptr = (ArgsView*)data;
+		char* pData = ((char*)data) + num * sizeof(ArgsView);
+		for (auto& arg : args) {
+			arg.type->InitObject(pData);
+			arg.type->CopyObject(pData, arg.val);
+			ptr->cls = arg.cls;
+			ptr->val = pData;
+			ptr++;
+			pData += arg.cls->size;
+		}
+		ptr = (ArgsView*)data;
+	}
+	inline ArgsValueList::~ArgsValueList()
+	{
+		if (num == 0 || !data) {
+			return;
+		}
+		for (int i = 0; i < num; i++) {
+			ptr->cls->DestObject((void*)ptr->val);
+		}
+		free(data);
+		num = 0;
+		data = nullptr;
+	}
 }

engine/3rdparty/zlib/include/refl/refl.h

@@ -1,2 +1,41 @@
 #include "detail/uclass.inl"
 #include "detail/view.inl"
+namespace refl {
+	/* 成员变量需要定义默认值吗？那为什么不在initObjec里初始化?*/
+	template<typename T, typename Obj>
+	static FieldPtr MakeMemberField(T Obj::* ptr, Name name) {
+		FieldPtr::Default value;
+		Offset offset = reinterpret_cast<std::size_t>(&(reinterpret_cast<const Obj*>(0)->*ptr));
+		FieldPtr::Data member = { offset };
+		constexpr uint32_t flag = FIELD_MEMBER_FLAG | FIELD_ATTRIBUTE_FLAG;
+		return { name, &TypeInfo<T>::StaticClass, member, value, flag };
+	}
+	template<typename R, typename ...Args>
+	static FieldPtr MakeMethodField(R(*ptr)(Args...), Name name, const std::vector<ArgsValue>& args = {}) {
+		uint32_t flag = FIELD_METHOD_FLAG;
+		FieldPtr::Default value;
+		if (args.size() > 0) {
+			flag |= FIELD_METHOD_VALUE_FLAG;
+			static const ArgsValueList argsValue(args);
+			value.method = []() ->std::pair<ArgsView*, int> {
+				return { argsValue.ptr , argsValue.num };
+			};
+		}
+		FieldPtr::Data method = { *(Method*)&ptr };
+		return { name, &TypeInfo<R(*)(typename RealTypeImpl<Args>::type...)>::StaticClass, method, value, flag };
+	}
+	template<typename T, typename R, typename ...Args>
+	static FieldPtr MakeMethodField(R(T::* ptr)(Args...), Name name, const std::vector<ArgsValue>& args = {}) {
+		uint32_t flag = FIELD_MEMBER_FLAG | FIELD_METHOD_FLAG;
+		FieldPtr::Default value;
+		if (args.size() > 0) {
+			flag |= FIELD_METHOD_VALUE_FLAG;
+			static const ArgsValueList argsValue(args);
+			value.method = []() ->std::pair<ArgsView*, int> {
+				return { argsValue.ptr , argsValue.num };
+			};
+		}
+		FieldPtr::Data method = { *(Method*)&ptr };
+		return { name, &TypeInfo<R(*)(const void*, typename RealTypeImpl<Args>::type...)>::StaticClass, method, value,flag };
+	}
+}

engine/3rdparty/zlib/test/refl_01.cpp

@@ -33,27 +33,29 @@ struct vec3 : public vec3_parent {
 		cout << x1 << "::norm3" << endl;
 	}
 	using MyUClass = UClass_Custom;
-	static MyUClass BuildClass() {
+	static void BuildClass(MyUClass& cls) {
-		MyUClass cls(type_name<vec3>().View(), sizeof(vec3), &TypeInfo<vec3_parent>::StaticClass);
+		cls.parent = &TypeInfo<vec3_parent>::StaticClass;
-		auto& FList = cls.FList;
+		cls.AttrNum = 3;
-		FList.reserve(6);
+		cls.FList = {
-		FList.push_back(cls.MakeMemberField<offsetof(vec3, x)>("x", &TypeInfo<float>::StaticClass));
+			MakeMemberField(&vec3::x, "x"),
-		FList.push_back(cls.MakeMemberField<offsetof(vec3, y)>("y", &TypeInfo<float>::StaticClass));
+			MakeMemberField(&vec3::y, "y"),
-		FList.push_back(cls.MakeMemberField<offsetof(vec3, z)>("z", &TypeInfo<float>::StaticClass));
+			MakeMemberField(&vec3::z, "z"),
-		cls.AttrNum = FList.size();
+			MakeMethodField(&vec3::norm, "norm", {8, 9}),
-		FList.push_back(cls.MakeMethodField(&vec3::norm, "norm"));
+			MakeMethodField(&vec3::norm1, "norm1",{2})
-		FList.push_back(cls.MakeMethodField(&vec3::norm, "norm1"));
+		};
-		cls.vtable.InitObject = &UClass::InitObject<vec3>;
-		cls.BuildClass();
-		return cls;
 	}
 };
 int main() {
 	auto cls =  &TypeInfo<vec3>::StaticClass;
-	int x = 100, y = 2;
+	int x = 2, y = 3;
 	auto ov = cls->New();
+	ov.Invoke("norm", x);
+	ov.Invoke("norm", x);
 	ov.Invoke("norm", x, y);
+	ov.Invoke("norm1", y);
 	vec3* v = (vec3*)ov.ptr;
+	v->norm1(y);
+	ov.Invoke("norm1", y);
 	delete v;
 	cout << "hello world\n";
 }