61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
#pragma once
|
||
#include "type.h"
|
||
namespace refl {
|
||
class UClass;
|
||
class FieldPtr;
|
||
//生命周期短，适用于传参，不建议保存数据
|
||
//只能指向指针，引用=>指针，指针=>指针，T => T*,T的类型丢失
|
||
struct Any {
|
||
public:
|
||
const void* ptr;
|
||
const UClass* cls;
|
||
constexpr Any(const void* ptr, const UClass* cls) : ptr(ptr), cls(cls) {
|
||
//assert(cls->flag & CLASS_POINTER_FLAG);
|
||
}
|
||
constexpr Any() : ptr(nullptr), cls(nullptr) {}
|
||
//右值=>右值压入栈，caller入栈地址
|
||
//左值=>caller变量地址
|
||
template<typename T>
|
||
constexpr Any(T&& v) : ptr(&v), cls(&TypeInfo<args_type_t<T>>::StaticClass) {
|
||
if constexpr (std::is_same_v<args_type_t<T>, Any>) {
|
||
ptr = v.ptr;
|
||
cls = v.cls;
|
||
}
|
||
}
|
||
template<typename T>
|
||
constexpr Any(T* v) : ptr(v), cls(&TypeInfo<args_type_t<T>>::StaticClass) {
|
||
if constexpr (std::is_same_v<args_type_t<T>, Any>) {
|
||
ptr = v->ptr;
|
||
cls = v->cls;
|
||
}
|
||
}
|
||
template<typename T>//参数 T* => T*
|
||
constexpr inline T CastTo() const {
|
||
if constexpr (std::is_pointer_v<T>) {
|
||
return (T)ptr;
|
||
}
|
||
else if constexpr (std::is_reference_v<T>) {
|
||
using RT = std::remove_reference_t<T>;
|
||
return *(RT*)ptr;
|
||
}
|
||
else {
|
||
return *(T*)ptr;
|
||
}
|
||
}
|
||
bool Check(const UClass* toClass)const;
|
||
constexpr bool IsValid() const{
|
||
return cls != nullptr && ptr != nullptr;
|
||
}
|
||
constexpr int Size()const;
|
||
constexpr const UClass* Parent()const;
|
||
constexpr Any Change(const void* ptr)const {
|
||
return {ptr, cls};
|
||
}
|
||
Any Member(const FieldPtr& field)const;
|
||
Any Member(int i)const;
|
||
int ArraySize()const;
|
||
bool IsArray()const;
|
||
bool IsObject()const;
|
||
bool Construct(const zstd::sarray<Any>& ArgsList)const;
|
||
};
|
||
} |