36   template <typename T, typename... Tys> void push(Tys &&...Args) {  in push()
37     new (grow(aligned_size<T>())) T(std::forward<Tys>(Args)...);  in push()
39     ItemTypes.push_back(toPrimType<T>());  in push()
44   template <typename T> T pop() {  in pop()
47     assert(ItemTypes.back() == toPrimType<T>());  in pop()
50     T *Ptr = &peekInternal<T>();  in pop()
51     T Value = std::move(*Ptr);  in pop()
52     shrink(aligned_size<T>());  in pop()
57   template <typename T> void discard() {  in discard()
60     assert(ItemTypes.back() == toPrimType<T>());  in discard()
63     T *Ptr = &peekInternal<T>();  in discard()
64     Ptr->~T();  in discard()
65     shrink(aligned_size<T>());  in discard()
69   template <typename T> T &peek() const {  in peek()
72     assert(ItemTypes.back() == toPrimType<T>());  in peek()
74     return peekInternal<T>();  in peek()
77   template <typename T> T &peek(size_t Offset) const {  in peek()
79     return *reinterpret_cast<T *>(peekData(Offset));  in peek()
101   template <typename T> constexpr size_t aligned_size() const {  in aligned_size()
103     return ((sizeof(T) + PtrAlign - 1) / PtrAlign) * PtrAlign;  in aligned_size()
107   template <typename T> T &peekInternal() const {  in peekInternal()
108     return *reinterpret_cast<T *>(peekData(aligned_size<T>()));  in peekInternal()
155   template <typename T> static constexpr PrimType toPrimType() {  in toPrimType()
156     if constexpr (std::is_same_v<T, Pointer>)  in toPrimType()
158     else if constexpr (std::is_same_v<T, bool> || std::is_same_v<T, Boolean>)  in toPrimType()
160     else if constexpr (std::is_same_v<T, int8_t> ||  in toPrimType()
161                        std::is_same_v<T, Integral<8, true>>)  in toPrimType()
163     else if constexpr (std::is_same_v<T, uint8_t> ||  in toPrimType()
164                        std::is_same_v<T, Integral<8, false>>)  in toPrimType()
166     else if constexpr (std::is_same_v<T, int16_t> ||  in toPrimType()
167                        std::is_same_v<T, Integral<16, true>>)  in toPrimType()
169     else if constexpr (std::is_same_v<T, uint16_t> ||  in toPrimType()
170                        std::is_same_v<T, Integral<16, false>>)  in toPrimType()
172     else if constexpr (std::is_same_v<T, int32_t> ||  in toPrimType()
173                        std::is_same_v<T, Integral<32, true>>)  in toPrimType()
175     else if constexpr (std::is_same_v<T, uint32_t> ||  in toPrimType()
176                        std::is_same_v<T, Integral<32, false>>)  in toPrimType()
178     else if constexpr (std::is_same_v<T, int64_t> ||  in toPrimType()
179                        std::is_same_v<T, Integral<64, true>>)  in toPrimType()
181     else if constexpr (std::is_same_v<T, uint64_t> ||  in toPrimType()
182                        std::is_same_v<T, Integral<64, false>>)  in toPrimType()
184     else if constexpr (std::is_same_v<T, Floating>)  in toPrimType()
186     else if constexpr (std::is_same_v<T, IntegralAP<true>>)  in toPrimType()
188     else if constexpr (std::is_same_v<T, IntegralAP<false>>)  in toPrimType()
190     else if constexpr (std::is_same_v<T, MemberPointer>)  in toPrimType()
192     else if constexpr (std::is_same_v<T, FixedPoint>)  in toPrimType()