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update refl invoke

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This commit is contained in:
ouczbs 2024-04-07 21:15:34 +08:00
parent 326f9b10be
commit c6ca4f12ec
4 changed files with 191 additions and 111 deletions
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6
engine/3rdparty/zlib/include/refl/field.h vendored
View File

@ -6,8 +6,8 @@ using Ubpa::Name;
using Ubpa::type_name;
namespace refl {
class UClass;
using Method = void(*)(...);
using Offset = uint32_t;
using Method = void(*)(...);
enum FieldFlag:uint32_t {
FIELD_NONE_FLAG = 0,
FIELD_MEMBER_FLAG = 1 << 0,
@ -16,8 +16,8 @@ namespace refl {
};
struct FieldPtr {
using Data = std::variant<
Offset, // offset
Method // method
Offset, // offset
Method // method
>;
Name name;
const UClass* type;

193
engine/3rdparty/zlib/include/refl/uclass.h vendored
View File

@ -3,21 +3,16 @@
#include "field.h"
#include "view.h"
namespace refl {
enum ClassFlag :uint32_t {
CLASS_NONE_FLAG = 0,
CLASS_MEMBER_FLAG = 1 << 0,
CLASS_ATTRIBUTE_FLAG = 1 << 1,
CLASS_METHOD_FLAG = 1 << 2,
};
class UClass{
using enum FieldFlag;
public:
Name name;
uint32_t size;
UClass* parent;
//uint32_t flag;
const UClass* parent;
public:
constexpr UClass(Name name, uint32_t size, UClass* parent = nullptr)
:name(name),size(size), parent(parent){}
constexpr UClass(std::string_view name, uint32_t size, const UClass* parent = nullptr)
:name(name), size(size), parent(parent){}
ObjectView New(void* ptr = nullptr) const{
if (ptr == nullptr) {
ptr = malloc(size);
@ -36,6 +31,16 @@ namespace refl {
InitObject(ptr);
return ptr;
}
bool IsChildOf(const UClass* cls) const {
const UClass* _parent = parent;
while (_parent != nullptr) {
if (_parent == cls) {
return true;
}
_parent = _parent->parent;
}
return false;
}
template<typename T>
bool IsChildOf(bool bthis = false) const {
constexpr UClass* cls = &TypeInfo<T>::StaticClass;
@ -56,53 +61,40 @@ namespace refl {
virtual void InitObject(void* ptr)const {
memset(ptr, 0, size);
}
virtual const FieldPtr* GetField(const Name& name)const {
virtual const FieldPtr* GetField(const Name& name, bool isMethod)const {
return nullptr;
}
virtual std::vector<UClass*> GetParams() const {
virtual std::vector<const UClass*> GetParams() const {
return{};
}
virtual void Call(const FieldPtr& field, std::vector<ArgsView>& ArgsList)const{}
virtual bool ConvertToValue(ArgsView& args)const{
return false;
}
protected:
template<typename T,Offset offset>
FieldPtr MakeMemberField(Name name) {
template<Offset offset>
FieldPtr MakeMemberField(Name name, const UClass* cls) {
FieldPtr::Data member = { offset };
constexpr uint32_t flag = FIELD_MEMBER_FLAG | FIELD_ATTRIBUTE_FLAG;
return { name, &TypeInfo<T>::StaticClass, {member}, flag };
return { name, cls, {member}, flag };
}
template<typename R, typename ...Args>
FieldPtr MakeMethodField(R (* ptr)(Args...), Name name) {
FieldPtr::Data member = { *(Method*)&ptr};
constexpr uint32_t flag = FIELD_METHOD_FLAG;
return { name, &TypeInfo<R(*)(Args...)>::StaticClass, {member},flag };
return { name, &TypeInfo<R(*)(typename RealTypeImpl<Args>::type...)>::StaticClass, {member},flag };
}
template<typename T, typename R, typename ...Args>
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*, Args...)>::StaticClass, {member},flag };
return { name, &TypeInfo<R(*)(const void*, typename RealTypeImpl<Args>::type...)>::StaticClass, {member},flag };
}
};
template<_ReflCheck_Ctor T>
class UClass_Auto : public UClass{
public:
using UClass::UClass;
bool ConvertToValue(ArgsView& args)const override {
if constexpr (std::is_same<T, int*>::value) {
using RawT = std::remove_pointer_t<T>;
args.val = (void*)*(RawT*)args.val;
args.cls = &TypeInfo<RawT>::StaticClass;
return true;
}
return false;
}
protected:
void InitObject(void* ptr)const override {
constexpr bool is_shallow_copyable = std::is_trivially_copyable<T>::value;
if constexpr (!is_shallow_copyable){
if constexpr (!std::is_trivially_copyable_v<T>){
T obj{};
std::construct_at((T*)ptr, obj);
}
@ -111,7 +103,7 @@ namespace refl {
}
}
public:
static UClass_Auto<T> BuildClass() {
constexpr static UClass_Auto<T> BuildClass() {
auto cls = UClass_Auto<T>(type_name<T>().View(), sizeof(T));
return cls;
}
@ -120,41 +112,52 @@ namespace refl {
template<_ReflCheck_Ctor_NoUClass T>
struct TypeInfoImpl<T>{
using UClass = UClass_Auto<T>;
inline static UClass StaticClass = UClass::BuildClass();
inline constexpr static UClass StaticClass = UClass::BuildClass();
};
/*
* 模板优化
* 成员参数转化为const void*
* 引用参数转化为指针
*/
template<typename R, typename... Args>
class UMethod_Auto : public UClass {
using UClass::UClass;
using MethodType = R(*)(Args...);
public:
std::array<UClass*, sizeof...(Args) + 1> UList;
std::array<const UClass*, sizeof...(Args) + 1> UList{};
std::vector<UClass*> GetParams()const override {
std::vector<const UClass*> GetParams()const override {
return { UList.data(), UList.data() + UList.size()};
}
void Call(const FieldPtr& field, std::vector<ArgsView>& ArgsList)const override {
Call<Args...>(field, ArgsList);
}
protected:
template<typename... Args>
inline void Call(const FieldPtr& field, std::vector<ArgsView>& ArgsList)const {
MethodType fptr = (MethodType)std::get<Method>(field.data);
int Indices = 0;
//fptr(ArgsList[1].val, Indices, Indices);
//fptr(std::forward<Args>((Args)Indices), ...);
int a = 1;
a = a + 1;
if constexpr (std::is_same_v<R, void>) {
MethodType fptr = (MethodType)std::get<Method>(field.data);
auto param = ArgsList.rbegin();
fptr(param++->cast_to<Args>()...);
}
else {
MethodType fptr = (MethodType)std::get<Method>(field.data);
auto param = ArgsList.rbegin();
auto ret = ArgsList.begin();
if (ret->cls == &TypeInfo<R>::StaticClass) {
*(R*)ret->val = fptr(param++->cast_to<Args>()...);
}
else {
fptr(param++->cast_to<Args>()...);
}
}
}
public:
//为了简化判断，cls 对象 统统指向 T*
static UMethod_Auto<R,Args...> BuildClass() {
auto cls = UMethod_Auto<R, Args...>(type_name<MethodType>().View(), sizeof(MethodType));
if constexpr(!std::is_same<R, void>::value) {
UMethod_Auto<R,Args...> cls(type_name<MethodType>().View(), sizeof(MethodType));
if constexpr(!std::is_same_v<R, void>) {
cls.UList[0] = &TypeInfo<R>::StaticClass;
}
if (sizeof...(Args) > 0) {
auto ptr = &cls.UList[1];
(...,(*ptr = &TypeInfo<Args>::StaticClass, ptr++));
(...,(*ptr = &TypeInfo<typename std::remove_pointer_t<Args>*>::StaticClass, ptr++));
}
return cls;
}
@ -175,11 +178,14 @@ _cache_get: bool isChild = cache->type->IsChildOf<T>(true);
}
return isChild;
}
auto field = cls->GetField(name);
auto field = cls->GetField(name, false);
if (field) {
cache = field;
goto _cache_get;
}
if (cls->parent) {
return Parent().Get(name, t);
}
return false;
}
template<typename T>
@ -193,18 +199,24 @@ _cache_set: bool isChild = cache->type->IsChildOf<T>(true);
}
return isChild;
}
auto field = cls->GetField(name);
auto field = cls->GetField(name, false);
if (field) {
cache = field;
goto _cache_set;
}
if (cls->parent) {
return Parent().Set(name, t);
}
return false;
}
template<typename ...Args>
bool ObjectView::Invoke(const Name& name, Args&&... args)
{
auto field = cls->GetField(name);
auto field = cls->GetField(name, true);
if (!field) {
if (cls->parent) {
return Parent().Invoke(name, args...);
}
return false;
}
constexpr int inputSize = sizeof...(Args);
@ -218,41 +230,66 @@ _cache_set: bool isChild = cache->type->IsChildOf<T>(true);
ArgsList.reserve(paramsSize);
ArgsList.emplace_back();
if (member) {
ArgsList.emplace_back(ptr, cls );
ArgsList.emplace_back(ptr, &TypeInfo<const void*>::StaticClass);
}
(..., (ArgsList.emplace_back((void*)&args, &TypeInfo<Args>::StaticClass)));
(..., (ArgsList.emplace_back(args)));
for (int i = member + 1; i < paramsSize; i++) {
if (ArgsList[i].cls != params[i]) {
ArgsList[i].ConvertTo(params[i]);
if (!ArgsList[i].ConvertTo(params[i])) {
return false;
}
}
}
field->type->Call(*field, ArgsList);
return false;
}
template<typename R, typename ...Args>
inline bool ObjectView::InvokeRet(const Name& name, R& ret, Args&& ...args)
{
auto field = cls->GetField(name);
if (!field) {
return false;
}
if (field->flag & FIELD_MEMBER_FLAG) {
using MemberMethodType = R(*)(const void*, Args...);
MemberMethodType fptr = (MemberMethodType)std::get<Method>(field->data);
ret = fptr(ptr, std::forward<Args>(args)...);
}
else {
using MethodType = R(*)(Args...);
MethodType fptr = (MethodType)std::get<Method>(field->data);
ret = fptr(std::forward<Args>(args)...);
}
return true;
}
bool ArgsView::ConvertTo(UClass* toClass) {
ArgsView args{val};
cls->ConvertToValue(args);
if (args.cls == toClass) {
*this = args;
template<_ReflCheck_Ctor R, typename ...Args>
R ObjectView::Invoke(const Name& name, Args&&... args)
{
auto field = cls->GetField(name, true);
if (!field) {
if (cls->parent) {
return Parent().Invoke<R>(name, args...);
}
return {};
}
R ret{};
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(ret);
if (member) {
ArgsList.emplace_back(ptr, &TypeInfo<const void*>::StaticClass);
}
(..., (ArgsList.emplace_back(args)));
for (int i = 0; i < paramsSize; i++) {
if (ArgsList[i].cls != params[i]) {
if (!ArgsList[i].ConvertTo(params[i])) {
return ret;
}
}
}
field->type->Call(*field, ArgsList);
return ret;
}
ObjectView ObjectView::Parent() {
return { ptr, cls ? cls->parent : nullptr };
}
/*平凡对象的转化要支持吗
* 比如同大小的安全转化
* 对象从小到大
* 对象从大到小
*/
bool ArgsView::ConvertTo(const UClass* toClass) {
//子类转父类
if (cls->IsChildOf(toClass)) {
cls = toClass;
return true;
}
return false;

25
engine/3rdparty/zlib/include/refl/view.h vendored
View File

@ -1,4 +1,6 @@
#pragma once
#include <string>
#include "type.h"
namespace refl {
class UClass;
class FieldPtr;
@ -19,14 +21,31 @@ namespace refl {
template<typename ...Args>
bool Invoke(const Name& name, Args&&... args);
template<typename R, typename ...Args>
bool InvokeRet(const Name& name,R& ret, Args&&... args);
template<_ReflCheck_Ctor R, typename ...Args>
R Invoke(const Name& name, Args&&... args);
ObjectView Parent();
};
class ArgsView {
public:
const void* val;
const UClass* cls;
ArgsView(const void* val = nullptr, const UClass* cls = nullptr) : val(val), cls(cls) {}
bool ConvertTo(UClass* toClass);
template<typename T>
ArgsView(T&& v): val(&v), cls(&TypeInfo<typename std::remove_reference_t<T>*>::StaticClass){}
template<typename T>
inline T cast_to() {
if constexpr (std::is_pointer_v<T>) {
return (T)val;
}
else if constexpr (std::is_reference_v<T>){
using RT = std::remove_reference_t<T>;
return *(RT*)val;
}else{
return *(T*)val;
}
}
bool ConvertTo(const UClass* toClass);
};
}

78
engine/3rdparty/zlib/test/refl_01.cpp vendored
View File

@ -7,7 +7,10 @@
using namespace std;
using namespace refl;
struct vec3_parent {
virtual void norm(int x1, int& x2) {
x2 = x1 * x2;
cout << x2 << "vec3_parent::norm" << endl;
}
};
struct vec3 : public vec3_parent {
using UClass = class vec3_UClass;
@ -15,10 +18,6 @@ struct vec3 : public vec3_parent {
float y = 2;
float z = 3;
string name{ "hellohellohellohellohellohello" };
void norm(int x1, int& x2) {
x2 = x1 * x * y * z * x2;
cout << x2 << "::norm" << endl;
}
virtual float norm1(int x1 = 10) {
cout << x1 << "::norm1" << endl;
return x * y *z * x1;
@ -34,11 +33,18 @@ struct vec3 : public vec3_parent {
struct vec3_UClass : public UClass {
public:
array<FieldPtr,6> FList;
int32_t AttrNum;
using UClass::UClass;
const FieldPtr* GetField(const Name& name)const override {
for (auto& field : FList) {
if (field.name == name) {
return &field;
const FieldPtr* GetField(const Name& name, bool isMethod)const override {
// 指定开始位置的迭代器
auto start = FList.begin();
if (isMethod) {
start += AttrNum;
}
auto end = FList.end();
for (auto it = start; it != end; ++it) {
if (it->name == name) {
return &*it;
}
}
return nullptr;
@ -50,11 +56,12 @@ public:
static vec3_UClass BuildClass() {
vec3_UClass cls(type_name<vec3>().View(), sizeof(vec3), &TypeInfo<vec3_parent>::StaticClass);
//offsetof(vec3, x) 很坑，相当坑
cls.FList[0] = cls.MakeMemberField<float, offsetof(vec3, x)>("x");
cls.FList[1] = cls.MakeMemberField<float, offsetof(vec3, y)>("y");
cls.FList[2] = cls.MakeMemberField<float, offsetof(vec3, z)>("z");
cls.AttrNum = 3;
cls.FList[0] = cls.MakeMemberField<offsetof(vec3, x)>("x", &TypeInfo<float>::StaticClass);
cls.FList[1] = cls.MakeMemberField<offsetof(vec3, y)>("y", &TypeInfo<float>::StaticClass);
cls.FList[2] = cls.MakeMemberField<offsetof(vec3, z)>("z", &TypeInfo<float>::StaticClass);
cls.FList[3] = cls.MakeMethodField(&vec3::norm, "norm");
//cls.FList[4] = cls.MakeMethodField(&vec3::norm1, "norm1");
cls.FList[4] = cls.MakeMethodField(&vec3::norm1, "norm1");
//cls.FList[5] = cls.MakeMethodField(&vec3::norm2, "norm2");
return cls;
}
@ -63,31 +70,48 @@ template<typename ...Args>
void printt(void* ptr, std::vector<ArgsView>& ArgsList) {
using MethodType = void (*)(Args...);
MethodType fptr = (MethodType)ptr;
auto param = ArgsList.begin();
auto val1 = (++param)->val;
auto val2 = (++param)->val;
auto val3 = (++param)->val;
fptr(val1, (int)val2, (int*)(void *)val3);
//fptr(val1, (int)val2, std::forward<int&>((int&)val3));
{
auto param = ArgsList.rbegin();
fptr(param++->cast_to<Args>()...);
//fptr((Args)param++->val...);
}
/* {
auto param = ArgsList.begin();
auto val1 = (++param);
auto val2 = (++param);
auto val3 = (++param);
fptr(val1->cast_to<void *>(), val1->cast_to<void*>(), val1->cast_to<void*>();
}
*/
//fptr((++param)->val, (int)(++param)->val, (int&)(++param)->val);
//fptr(std::forward<Args>(Args(param++->val))...);
//fptr(std::forward<Args>((Args)(++param)->val)...);
int x = 1;
x = x + 1;
}
int main() {
auto cls = &TypeInfo<vec3>::StaticClass;
auto cls2 = &TypeInfo<int>::StaticClass;
auto cls3 = &TypeInfo<int*>::StaticClass;
auto cls4 = &TypeInfo<void*>::StaticClass;
auto cls5 = &TypeInfo<decltype(&vec3::norm)>::StaticClass;
vec3 v;
int x = 1, y = 2;
std::vector<ArgsView> ArgsList;
ArgsList.emplace_back();
ArgsList.emplace_back(&v);
ArgsList.emplace_back((void*)x);
ArgsList.emplace_back(&y);
ArgsList.emplace_back(v);
ArgsList.emplace_back(x);
ArgsList.emplace_back(y);
auto ptr1 = &vec3::norm;
using MethodType = void (*)(void*, int, int*);
using MethodType = void (*)(void*, int, int&);
MethodType ptr2 = *(MethodType*)&ptr1;
ptr2(&v, x , &y);
printt<const void*, int , int*>(*(void**)&ptr1, ArgsList);
using R = int;
using RetType = void*;
auto ttt = sizeof(void*);
RetType ret;
//ptr2(&v, x , y);
auto ov = cls->New((void*)& v);
ov.Invoke("norm", x, y);
printt<const void*, int , int&>(*(void**)&ptr1, ArgsList);
//ptr2(x, y);
//cout << "hello world\n";
cout << "hello world\n";
}