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[ox/std] Add UAnyPtr

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This commit is contained in:
Gary Talent 2025-01-18 20:11:42 -06:00
parent 721f844214
commit b29b9a9b3a
1 changed files with 75 additions and 10 deletions
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85
deps/ox/src/ox/std/anyptr.hpp vendored
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@ -15,16 +15,20 @@
namespace ox {
class AnyPtr {
namespace detail {
template<bool unique>
class AnyPtrT {
private:
struct WrapBase {
virtual constexpr ~WrapBase() = default;
virtual constexpr WrapBase *copyTo(ox::Span<char> s) noexcept = 0;
virtual constexpr operator bool() const noexcept = 0;
virtual void free() noexcept = 0;
};
template<typename T>
struct Wrap: public WrapBase {
struct Wrap final: WrapBase {
T *data{};
constexpr Wrap(T *pData) noexcept: data(pData) {
}
@ -39,16 +43,20 @@ class AnyPtr {
constexpr operator bool() const noexcept override {
return data != nullptr;
}
constexpr void free() noexcept override {
ox::safeDelete(data);
data = {};
}
};
WrapBase *m_wrapPtr{};
ox::Array<char, sizeof(Wrap<void*>)> m_wrapData;
public:
constexpr AnyPtr() noexcept = default;
constexpr AnyPtrT() noexcept = default;
template<typename T>
constexpr AnyPtr(T *ptr) noexcept {
constexpr AnyPtrT(T *ptr) noexcept {
if (std::is_constant_evaluated()) {
m_wrapPtr = new Wrap(ptr);
} else {
@ -56,22 +64,39 @@ class AnyPtr {
}
}
constexpr AnyPtr(AnyPtr const&other) noexcept {
constexpr AnyPtrT(AnyPtrT const&other) noexcept {
if (other) {
m_wrapPtr = other.m_wrapPtr->copyTo(m_wrapData);
}
}
constexpr ~AnyPtr() noexcept {
constexpr AnyPtrT(AnyPtrT &&other) noexcept {
if (other) {
m_wrapPtr = other.m_wrapPtr->copyTo(m_wrapData);
if (std::is_constant_evaluated()) {
ox::safeDelete(m_wrapPtr);
}
other.m_wrapPtr = {};
}
}
constexpr ~AnyPtrT() noexcept {
if constexpr(unique) {
free();
}
if (std::is_constant_evaluated()) {
ox::safeDelete(m_wrapPtr);
}
}
template<typename T>
constexpr AnyPtr &operator=(T *ptr) noexcept {
if (std::is_constant_evaluated()) {
constexpr AnyPtrT &operator=(T *ptr) noexcept {
if constexpr(unique) {
free();
} else if (std::is_constant_evaluated()) {
ox::safeDelete(m_wrapPtr);
}
if (std::is_constant_evaluated()) {
m_wrapPtr = new Wrap(ptr);
} else {
m_wrapPtr = new(m_wrapData.data()) Wrap(ptr);
@ -79,10 +104,14 @@ class AnyPtr {
return *this;
}
constexpr AnyPtr &operator=(AnyPtr const&ptr) noexcept {
constexpr AnyPtrT &operator=(AnyPtrT const&ptr) noexcept {
if (this != &ptr) {
if (ptr) {
if constexpr(unique) {
free();
} else if (std::is_constant_evaluated()) {
ox::safeDelete(m_wrapPtr);
}
if (ptr) {
m_wrapPtr = ptr.m_wrapPtr->copyTo(m_wrapData);
} else {
m_wrapPtr = nullptr;
@ -91,10 +120,40 @@ class AnyPtr {
return *this;
}
constexpr AnyPtrT &operator=(AnyPtrT &&ptr) noexcept {
if (this != &ptr) {
if constexpr(unique) {
free();
} else if (std::is_constant_evaluated()) {
ox::safeDelete(m_wrapPtr);
}
if (ptr) {
m_wrapPtr = ptr.m_wrapPtr->copyTo(m_wrapData);
if (std::is_constant_evaluated()) {
ox::safeDelete(ptr.m_wrapPtr);
ptr.m_wrapPtr = nullptr;
}
} else {
m_wrapPtr = nullptr;
}
}
return *this;
}
constexpr operator bool() const noexcept {
return m_wrapPtr && *m_wrapPtr;
}
constexpr void free() noexcept {
if (m_wrapPtr) {
m_wrapPtr->free();
}
if (std::is_constant_evaluated()) {
ox::safeDelete(m_wrapPtr);
}
m_wrapPtr = nullptr;
}
template<typename T>
[[nodiscard]]
constexpr T *get() const noexcept {
@ -104,6 +163,12 @@ class AnyPtr {
return dynamic_cast<Wrap<T>*>(m_wrapPtr)->data;
#endif
}
};
}
using AnyPtr = detail::AnyPtrT<false>;
using UAnyPtr = detail::AnyPtrT<true>;
}