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73 lines
1.9 KiB
73 lines
1.9 KiB
#ifndef _TYPES_H
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#define _TYPES_H
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#include <typeinfo>
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#include <functional>
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#include <cstdint>
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#include <type_traits>
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#include "table.h"
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namespace types {
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enum Type_t {
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AINT, AFLOAT, ASTR, ADOUBLE, ALDOUBLE, ALONG, ASHORT, ADATE, ATIME, ACHAR, NONE,
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AUINT, AULONG, AUSHORT, AUCHAR
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};
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// TODO: deal with data/time <=> str/uint conversion
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struct date_t {
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uint32_t val;
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date_t(const char* d) {
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}
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const char* toString() const{
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return "";
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}
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};
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struct time_t {
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uint32_t val;
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time_t(const char* d) {
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}
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const char* toString() const {
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return "";
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}
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};
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template <typename T>
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struct Types {
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typedef T type;
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constexpr Types() noexcept = default;
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#define ConnectTypes(f, x, y) \
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f(int, AINT) \
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f(float, AFLOAT) \
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f(const char*, ASTR) \
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f(double, ADOUBLE) \
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f(long double, ALDOUBLE) \
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f(long, ALONG) \
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f(short, ASHORT) \
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f(date_t, ADATE) \
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f(time_t, ATIME) \
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f(unsigned short, AUSHORT) \
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f(unsigned long, AULONG) \
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f(unsigned int, AUINT) \
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f(unsigned char, ACHAR) \
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f(void, NONE)
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constexpr Type_t getType() const {
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#define TypeConnect(x, y) if(typeid(T) == typeid(x)) return y; else
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ConnectTypes(TypeConnect, x, y)
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return NONE;
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}
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};
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#define Cond(c, x, y) typename std::conditional<c, x, y>::type
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#define Comp(o) (sizeof(T1) o sizeof(T2))
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#define Same(x, y) (std::is_same_v<x, y>)
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#define _U(x) std::is_unsigned<x>::value
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#define Fp(x) std::is_floating_point<x>::value
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template <class T1, class T2>
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struct Coercion {
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using t1 = Cond(Comp(<=), Cond(Comp(==), Cond(Fp(T1), T1, Cond(Fp(T2), T2, Cond(_U(T1), T2, T1))), T2), T1);
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using t2 = Cond(Same(T1, T2), T1, Cond(Same(T1, const char*) || Same(T2, const char*), const char*, void));
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using type = Cond(Same(t2, void), Cond(Same(T1, date_t) && Same(T2, time_t) || Same(T1, time_t) && Same(T2, time_t), void, t1), t2);
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};
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}
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#endif // !_TYPES_H
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