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#ifndef SENTINEL_OPTIONAL_INL_H_
#error "Direct inclusion of this file is not allowed, include sentinel_optional.h"
// For the sake of sane code completion.
#include "sentinel_optional.h"
#endif
#include <library/cpp/yt/assert/assert.h>
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
template <class T, class TSentinel>
constexpr TSentinelOptional<T, TSentinel>::TSentinelOptional(std::nullopt_t) noexcept
: Value_(TSentinel::Sentinel)
{ }
template <class T, class TSentinel>
constexpr TSentinelOptional<T, TSentinel>::TSentinelOptional(T value) noexcept
: Value_(value)
{ }
template <class T, class TSentinel>
constexpr TSentinelOptional<T, TSentinel>::TSentinelOptional(std::optional<T> opt) noexcept
: Value_(opt ? *opt : TSentinel::Sentinel)
{ }
template <class T, class TSentinel>
constexpr TSentinelOptional<T, TSentinel>& TSentinelOptional<T, TSentinel>::operator=(std::nullopt_t) noexcept
{
Value_ = TSentinel::Sentinel;
return *this;
}
template <class T, class TSentinel>
constexpr TSentinelOptional<T, TSentinel>& TSentinelOptional<T, TSentinel>::operator=(T value) noexcept
{
Value_ = value;
return *this;
}
template <class T, class TSentinel>
constexpr bool TSentinelOptional<T, TSentinel>::has_value() const noexcept
{
return Value_ != TSentinel::Sentinel;
}
template <class T, class TSentinel>
constexpr TSentinelOptional<T, TSentinel>::operator bool() const noexcept
{
return has_value();
}
template <class T, class TSentinel>
constexpr T& TSentinelOptional<T, TSentinel>::operator*() noexcept
{
return Value_;
}
template <class T, class TSentinel>
constexpr const T& TSentinelOptional<T, TSentinel>::operator*() const noexcept
{
return Value_;
}
template <class T, class TSentinel>
constexpr T* TSentinelOptional<T, TSentinel>::operator->() noexcept
{
return &Value_;
}
template <class T, class TSentinel>
constexpr const T* TSentinelOptional<T, TSentinel>::operator->() const noexcept
{
return &Value_;
}
template <class T, class TSentinel>
T& TSentinelOptional<T, TSentinel>::value() noexcept
{
YT_ASSERT(has_value());
return Value_;
}
template <class T, class TSentinel>
const T& TSentinelOptional<T, TSentinel>::value() const noexcept
{
YT_ASSERT(has_value());
return Value_;
}
template <class T, class TSentinel>
constexpr T TSentinelOptional<T, TSentinel>::value_or(T default_value) const noexcept
{
return has_value() ? Value_ : default_value;
}
template <class T, class TSentinel>
constexpr void TSentinelOptional<T, TSentinel>::reset() noexcept
{
Value_ = TSentinel::Sentinel;
}
template <class T, class TSentinel>
constexpr TSentinelOptional<T, TSentinel>::operator std::optional<T>() const noexcept
{
return has_value() ? std::optional<T>(Value_) : std::nullopt;
}
template <class T, class TSentinel>
constexpr bool TSentinelOptional<T, TSentinel>::operator==(std::nullopt_t) const noexcept
{
return !has_value();
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
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