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#include "Basic.hpp"
#include <charconv>
#include <cmath>
#include <limits>
bool NumericValue::IsInstance(const BaseValue* value)
{
return value->GetKind() == KD_Numeric;
}
NumericValue::NumericValue()
: BaseValue(BaseValue::KD_Numeric)
{
}
template <class T, int kMaxSize>
static std::string NumberToString(T value)
{
char buf[kMaxSize];
auto res = std::to_chars(buf, buf + kMaxSize, value);
if (res.ec == std::errc()) {
return std::string(buf, res.ptr);
} else {
return "<err>";
}
}
std::string NumericValue::GetTruncatedString() const
{
constexpr auto kMaxSize = std::numeric_limits<int64_t>::digits10;
return ::NumberToString<int64_t, kMaxSize>((int64_t)mValue);
}
std::string NumericValue::GetRoundedString() const
{
constexpr auto kMaxSize = std::numeric_limits<int64_t>::digits10;
return ::NumberToString<int64_t, kMaxSize>((int64_t)std::round(mValue));
}
std::string NumericValue::GetString() const
{
constexpr auto kMaxSize = std::numeric_limits<double>::max_digits10;
return ::NumberToString<double, kMaxSize>(mValue);
}
int64_t NumericValue::GetInt() const
{
return static_cast<int64_t>(mValue);
}
double NumericValue::GetValue() const
{
return mValue;
}
void NumericValue::SetValue(double value)
{
mValue = value;
}
bool TextValue::IsInstance(const BaseValue* value)
{
return value->GetKind() == KD_Text;
}
TextValue::TextValue()
: BaseValue(BaseValue::KD_Text)
{
}
const std::string& TextValue::GetValue() const
{
return mValue;
}
void TextValue::SetValue(const std::string& value)
{
mValue = value;
}
bool DateTimeValue::IsInstance(const BaseValue* value)
{
return value->GetKind() == KD_DateTime;
}
DateTimeValue::DateTimeValue()
: BaseValue(BaseValue::KD_DateTime)
{
}
std::string DateTimeValue::GetString() const
{
namespace chrono = std::chrono;
auto t = chrono::system_clock::to_time_t(mValue);
char data[32];
std::strftime(data, sizeof(data), "%Y-%m-%d %H:%M:%S", std::localtime(&t));
return std::string(data);
}
const std::chrono::time_point<std::chrono::system_clock>& DateTimeValue::GetValue() const
{
return mValue;
}
void DateTimeValue::SetValue(const std::chrono::time_point<std::chrono::system_clock>& value)
{
mValue = value;
}
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