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435 lines
15 KiB
435 lines
15 KiB
// TODO: Replace `cout, printf` with sprintf&fputs and custom buffers
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#ifndef _TABLE_H
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#define _TABLE_H
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#include "types.h"
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#include "vector_type.hpp"
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#include <iostream>
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#include <string>
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#include "io.h"
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template <typename T>
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class vector_type;
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template <>
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class vector_type<void>;
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#ifdef _MSC_VER
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namespace types {
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enum Type_t;
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template <typename T>
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struct Types;
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template <class T1, class T2>
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struct Coercion;
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}
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#endif
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template<typename _Ty>
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class ColView;
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template<typename _Ty>
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class ColRef : public vector_type<_Ty>
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{
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public:
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typedef ColRef<_Ty> Decayed_t;
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const char* name;
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types::Type_t ty = types::ERROR;
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ColRef() : vector_type<_Ty>(0), name("") {}
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ColRef(const uint32_t& size, const char* name = "") : vector_type<_Ty>(size), name(name) {}
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ColRef(const char* name) : name(name) {}
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void init() { ty = types::Types<_Ty>::getType(); this->size = this->capacity = 0; this->container = 0; }
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ColRef(const char* name, types::Type_t ty) : name(name), ty(ty) {}
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using vector_type<_Ty>::operator[];
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using vector_type<_Ty>::operator=;
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ColView<_Ty> operator [](const vector_type<uint32_t>&idxs) const {
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return ColView<_Ty>(*this, idxs);
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}
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void out(uint32_t n = 4, const char* sep = " ") const {
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n = n > this->size ? this->size : n;
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std::cout << '(';
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for (uint32_t i = 0; i < n; ++i)
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std::cout << this->operator[](i) << sep;
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std::cout << ')';
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}
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template<typename T>
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ColRef<T> scast();
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};
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template<typename _Ty>
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class ColView {
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public:
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typedef ColRef<_Ty> Decayed_t;
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const vector_type<uint32_t>& idxs;
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const ColRef<_Ty>& orig;
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const uint32_t& size;
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ColView(const ColRef<_Ty>& orig, const vector_type<uint32_t>& idxs) : orig(orig), idxs(idxs), size(idxs.size) {}
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ColView(const ColView<_Ty>& orig, const vector_type<uint32_t>& idxs) : orig(orig.orig), idxs(idxs), size(idxs.size) {
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for (uint32_t i = 0; i < size; ++i)
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idxs[i] = orig.idxs[idxs[i]];
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}
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_Ty& operator [](const uint32_t& i) const {
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return orig[idxs[i]];
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}
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struct Iterator_t {
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const uint32_t* val;
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const ColRef<_Ty>& orig;
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constexpr Iterator_t(const uint32_t* val, const ColRef<_Ty>& orig) noexcept : val(val), orig(orig) {}
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_Ty& operator*() { return orig[*val]; }
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bool operator != (const Iterator_t& rhs) { return rhs.val != val; }
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Iterator_t& operator++ () {
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++val;
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return *this;
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}
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Iterator_t operator++ (int) {
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Iterator_t tmp = *this;
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++val;
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return tmp;
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}
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};
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Iterator_t begin() const {
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return Iterator_t(idxs.begin(), orig);
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}
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Iterator_t end() const {
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return Iterator_t(idxs.end(), orig);
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}
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void out(uint32_t n = 4, const char* sep = " ") const {
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n = n > size ? size : n;
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std::cout<<'(';
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for (uint32_t i = 0; i < n; ++i)
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std::cout << this->operator[](i)<< sep;
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std::cout << ')';
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}
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};
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template <template <class...> class VT, class T>
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std::ostream& operator<<(std::ostream& os, const VT<T>& v)
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{
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v.out();
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return os;
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}
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template <class Type>
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struct decayed_impl<ColView, Type> { typedef ColRef<Type> type; };
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template<typename _Ty>
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template<typename T>
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inline ColRef<T> ColRef<_Ty>::scast()
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{
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this->ty = types::Types<T>::getType();
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return *(ColRef<T> *)this;
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}
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using uColRef = ColRef<void>;
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template<class ...Types> struct TableInfo;
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template<class ...Types> struct TableView;
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template <long long _Index, bool order = true, class... _Types>
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constexpr inline auto& get(const TableInfo<_Types...>& table) noexcept {
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if constexpr (order)
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return *(ColRef<std::tuple_element_t<_Index, std::tuple<_Types...>>> *) & (table.colrefs[_Index]);
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else
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return *(ColRef<std::tuple_element_t<-1-_Index, std::tuple<_Types...>>> *) & (table.colrefs[-1-_Index]);
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}
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template <long long _Index, class... _Types>
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constexpr inline ColRef<std::tuple_element_t<_Index, std::tuple<_Types...>>>& get(const TableView<_Types...>& table) noexcept {
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return *(ColRef<std::tuple_element_t<_Index, std::tuple<_Types...>>> *) & (table.info.colrefs[_Index]);
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}
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template <class V>
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struct is_vector_impl<ColRef<V>> : std::true_type {};
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template <class V>
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struct is_vector_impl<ColView<V>> : std::true_type {};
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template <class V>
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struct is_vector_impl<vector_type<V>> : std::true_type {};
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template<class ...Types>
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struct TableView;
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template<class ...Types>
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struct TableInfo {
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const char* name;
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ColRef<void>* colrefs;
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uint32_t n_cols;
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typedef std::tuple<Types...> tuple_type;
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void print(const char* __restrict sep, const char* __restrict end) const;
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template <class ...Types2>
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struct lineage_t {
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TableInfo<Types...>* this_table;
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TableInfo<Types2...>* table;
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vector_type<uint32_t> rid;
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constexpr lineage_t(TableInfo<Types...>*this_table, TableInfo<Types2...> *table)
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: this_table(this_table), table(table), rid(0) {}
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constexpr lineage_t() : this_table(0), table(0), rid(0) {}
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template <int col>
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inline auto& get(uint32_t idx) {
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return get<col>(*table)[rid[idx]];
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}
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void emplace_back(const uint32_t& v) {
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rid.emplace_back(v);
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}
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};
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template<class ...Types2>
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auto bind(TableInfo<Types2...>* table2) {
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return lineage_t(this, table2);
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}
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template <size_t j = 0>
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typename std::enable_if<j == sizeof...(Types) - 1, void>::type print_impl(const uint32_t& i, const char* __restrict sep = " ") const;
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template <size_t j = 0>
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typename std::enable_if<j < sizeof...(Types) - 1, void>::type print_impl(const uint32_t& i, const char* __restrict sep = " ") const;
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template <size_t ...Idxs>
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struct GetTypes {
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typedef typename std::tuple<typename std::tuple_element<Idxs, tuple_type>::type ...> type;
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};
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template <size_t ...Idxs>
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using getRecordType = typename GetTypes<Idxs...>::type;
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TableInfo(const char* name, uint32_t n_cols);
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template <int prog = 0>
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inline void materialize(const vector_type<uint32_t>& idxs, TableInfo<Types...>* tbl = nullptr) { // inplace materialize
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if constexpr(prog == 0) tbl = 0 ? this : tbl;
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if constexpr (prog == sizeof...(Types)) return;
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else {
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auto& col = get<prog>(*this);
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auto new_col = decays<decltype(col)>{idxs.size};
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for(uint32_t i = 0; i < idxs.size; ++i)
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new_col[i] = col[idxs[i]];
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get<prog>(*tbl) = new_col;
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materialize<prog + 1>();
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}
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}
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inline TableInfo<Types...>* materialize_copy(const vector_type<uint32_t>& idxs) {
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auto tbl = new TableInfo<Types...>(this->name, sizeof...(Types));
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materialize<0>(idxs, tbl);
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return tbl;
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}
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template<int ...cols>
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inline vector_type<uint32_t>* order_by() {
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vector_type<uint32_t>* ord = new vector_type<uint32_t>(colrefs[0].size);
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for (uint32_t i = 0; i < colrefs[0].size; ++i)
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(*ord)[i] = i;
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std::sort(ord->begin(), ord->end(), [this](const uint32_t& lhs, const uint32_t& rhs) {
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return
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std::forward_as_tuple((cols >= 0 ? get<cols, (cols >= 0)>(*this)[lhs] : -get<cols, (cols >= 0)>(*this)[lhs]) ...)
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<
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std::forward_as_tuple((cols >= 0 ? get<cols, (cols >= 0)>(*this)[rhs] : -get<cols, (cols >= 0)>(*this)[rhs]) ...);
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});
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return ord;
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}
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template <int ...cols>
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auto order_by_view () {
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return TableView<Types...>(order_by<cols...>(), *this);
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}
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// Print 2 -- generate printf string first, supports flattening, supports sprintf/printf/fprintf
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template <int col, int ...rem_cols, class Fn, class ...__Types>
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inline void print2_impl(Fn func, const uint32_t& i, const __Types& ... args) const {
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using this_type = typename std::tuple_element<col, tuple_type>::type;
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const auto& this_value = get<col>(*this)[i];
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const auto& next = [&](auto &v) {
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if constexpr (sizeof...(rem_cols) == 0)
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func(args..., v);
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else
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print2_impl<rem_cols...>(func, i, args ..., v);
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};
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if constexpr (is_vector_type<this_type>)
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for (int j = 0; j < this_value.size; ++j)
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next(this_value[j]);
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else
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next(this_value);
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}
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template <int ...cols>
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void print2(const char* __restrict sep = ",", const char* __restrict end = "\n",
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const vector_type<uint32_t>* __restrict view = nullptr, FILE* __restrict fp = nullptr) const {
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std::string printf_string =
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generate_printf_string<typename std::tuple_element<cols, tuple_type>::type ...>(sep, end);
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const auto& prt_loop = [&fp, &view, &printf_string, *this](const auto& f) {
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if(view)
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for (int i = 0; i < view->size; ++i)
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print2_impl<cols...>(f, (*view)[i], printf_string.c_str());
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else
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for (int i = 0; i < colrefs[0].size; ++i)
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print2_impl<cols...>(f, i, printf_string.c_str());
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};
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if (fp)
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prt_loop([&fp](auto... args) { fprintf(fp, args...); });
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else
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prt_loop(printf);
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}
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template <int ...vals> struct applier {
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inline constexpr static void apply(const TableInfo<Types...>& t, const char* __restrict sep = ",", const char* __restrict end = "\n",
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const vector_type<uint32_t>* __restrict view = nullptr, FILE* __restrict fp = nullptr)
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{ t.template print2<vals ...>(sep, end, view, fp); }};
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inline void printall(const char* __restrict sep = ",", const char* __restrict end = "\n",
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const vector_type<uint32_t>* __restrict view = nullptr, FILE* __restrict fp = nullptr) {
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applyIntegerSequence<sizeof...(Types), applier>::apply(*this, sep, end, view, fp);
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}
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};
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template<class ...Types>
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struct TableView {
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const vector_type<uint32_t>* idxs;
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const TableInfo<Types...>& info;
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constexpr TableView(const vector_type<uint32_t>* idxs, const TableInfo<Types...>& info) noexcept : idxs(idxs), info(info) {}
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void print(const char* __restrict sep, const char* __restrict end) const;
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template <size_t j = 0>
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typename std::enable_if<j == sizeof...(Types) - 1, void>::type print_impl(const uint32_t& i, const char* __restrict sep = " ") const;
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template <size_t j = 0>
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typename std::enable_if < j < sizeof...(Types) - 1, void>::type print_impl(const uint32_t& i, const char* __restrict sep = " ") const;
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~TableView() {
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delete idxs;
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}
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};
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template <class T>
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constexpr static inline bool is_vector(const ColRef<T>&) {
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return true;
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}
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template <class T>
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constexpr static inline bool is_vector(const vector_type<T>&) {
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return true;
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}
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template<class ...Types>
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TableInfo<Types...>::TableInfo(const char* name, uint32_t n_cols) : name(name), n_cols(n_cols) {
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this->colrefs = (ColRef<void>*)malloc(sizeof(ColRef<void>) * n_cols);
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}
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template <class ...Types>
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template <size_t j>
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inline typename std::enable_if<j == sizeof...(Types) - 1, void>::type
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TableView<Types ...>::print_impl(const uint32_t& i, const char* __restrict sep) const {
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std::cout << (get<j>(*this))[(*idxs)[i]];
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}
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template<class ...Types>
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template<size_t j>
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inline typename std::enable_if < j < sizeof...(Types) - 1, void>::type
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TableView<Types...>::print_impl(const uint32_t& i, const char* __restrict sep) const
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{
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std::cout << (get<j>(*this))[(*idxs)[i]] << sep;
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print_impl<j + 1>(i, sep);
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}
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template<class ...Types>
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inline void TableView<Types...>::print(const char* __restrict sep, const char* __restrict end) const {
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int n_rows = 0;
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if (info.colrefs[0].size > 0)
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n_rows = info.colrefs[0].size;
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for (int i = 0; i < n_rows; ++i) {
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print_impl(i);
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std::cout << end;
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}
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}
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template <class ...Types>
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template <size_t j>
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inline typename std::enable_if<j == sizeof...(Types) - 1, void>::type
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TableInfo<Types ...>::print_impl(const uint32_t& i, const char* __restrict sep) const {
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std::cout << (get<j>(*this))[i];
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}
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template<class ...Types>
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template<size_t j>
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inline typename std::enable_if<j < sizeof...(Types) - 1, void>::type
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TableInfo<Types...>::print_impl(const uint32_t& i, const char* __restrict sep) const
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{
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std::cout << (get<j>(*this))[i] << sep;
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print_impl<j+1>(i, sep);
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}
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template<class ...Types>
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inline void TableInfo<Types...>::print(const char* __restrict sep, const char* __restrict end) const {
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int n_rows = 0;
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if (n_cols > 0 && colrefs[0].size > 0)
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n_rows = colrefs[0].size;
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for (int i = 0; i < n_rows; ++i) {
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print_impl(i);
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std::cout << end;
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}
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}
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template <class T1, class T2, template<typename ...> class VT>
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VT<typename types::Coercion<T1, T2>::type> operator -(const VT<T1>& lhs, const VT<T2>& rhs) {
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auto ret = VT<typename types::Coercion<T1, T2>::type>(lhs.size, "");
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for (int i = 0; i < lhs.size; ++i)
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ret.container[i] = lhs.container[i] - rhs.container[i];
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return ret;
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}
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template <class T1, class T2, template<typename ...> class VT>
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VT<typename types::Coercion<T1, T2>::type> operator -(const VT<T1>& lhs, const T2& rhs) {
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auto ret = VT<typename types::Coercion<T1, T2>::type>(lhs.size, "");
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for (int i = 0; i < lhs.size; ++i)
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ret.container[i] = lhs.container[i] - rhs;
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return ret;
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}
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template <class T1, class T2, template<typename ...> class VT>
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VT<typename types::Coercion<T1, T2>::type> operator +(const VT<T1>& lhs, const VT<T2>& rhs) {
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auto ret = VT<typename types::Coercion<T1, T2>::type>(lhs.size, "");
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for (int i = 0; i < lhs.size; ++i)
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ret.container[i] = lhs.container[i] + rhs.container[i];
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return ret;
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}
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template <class T1, class T2, template<typename ...> class VT>
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VT<typename types::Coercion<T1, T2>::type> operator +(const VT<T1>& lhs, const T2& rhs) {
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auto ret = VT<typename types::Coercion<T1, T2>::type>(lhs.size, "");
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for (int i = 0; i < lhs.size; ++i)
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ret.container[i] = lhs.container[i] + rhs;
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return ret;
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}
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template <class T1, class T2, template<typename ...> class VT>
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VT<typename types::Coercion<T1, T2>::type> operator *(const VT<T1>& lhs, const VT<T2>& rhs) {
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auto ret = VT<typename types::Coercion<T1, T2>::type>(lhs.size, "");
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for (int i = 0; i < lhs.size; ++i)
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ret.container[i] = lhs.container[i] * rhs.container[i];
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return ret;
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}
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template <class T1, class T2, template<typename ...> class VT>
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VT<typename types::Coercion<T1, T2>::type> operator *(const VT<T1>& lhs, const T2& rhs) {
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auto ret = VT<typename types::Coercion<T1, T2>::type>(lhs.size, "");
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for (int i = 0; i < lhs.size; ++i)
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ret.container[i] = lhs.container[i] * rhs;
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return ret;
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}
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template <class T1, class T2, template<typename ...> class VT>
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VT<typename types::Coercion<T1, T2>::type> operator /(const VT<T1>& lhs, const VT<T2>& rhs) {
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auto ret = VT<typename types::Coercion<T1, T2>::type>(lhs.size, "");
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for (int i = 0; i < lhs.size; ++i)
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ret.container[i] = lhs.container[i] / rhs.container[i];
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return ret;
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}
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template <class T1, class T2, template<typename ...> class VT>
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VT<typename types::Coercion<T1, T2>::type> operator /(const VT<T1>& lhs, const T2& rhs) {
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auto ret = VT<typename types::Coercion<T1, T2>::type>(lhs.size, "");
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for (int i = 0; i < lhs.size; ++i)
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ret.container[i] = lhs.container[i] / rhs;
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return ret;
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}
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template <class ...Types>
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void print(const TableInfo<Types...>& v, const char* delimiter = " ", const char* endline = "\n") {
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v.print(delimiter, endline);
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}
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template <class ...Types>
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void print(const TableView<Types...>& v, const char* delimiter = " ", const char* endline = "\n") {
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v.print(delimiter, endline);
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}
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template <class T>
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void print(const T& v, const char* delimiter = " ") {
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std::cout<< v;
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// printf(types::printf_str[types::Types<T>::getType()], v);
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}
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|
template <class T>
|
|
void inline print_impl(const T& v, const char* delimiter, const char* endline) {
|
|
for (const auto& vi : v) {
|
|
print(vi);
|
|
std::cout << delimiter;
|
|
// printf("%s", delimiter);
|
|
}
|
|
std::cout << endline;
|
|
//printf("%s", endline);
|
|
}
|
|
|
|
template <class T, template<typename> class VT>
|
|
typename std::enable_if<!std::is_same<VT<T>, TableInfo<T>>::value>::type
|
|
print(const VT<T>& v, const char* delimiter = " ", const char* endline = "\n") {
|
|
print_impl(v, delimiter, endline);
|
|
}
|
|
|
|
#endif |