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#pragma once
#include <stdexcept>
#include "OptionalRef.h"
namespace crepe {
template <typename T>
OptionalRef<T>::OptionalRef(T & ref) {
this->set(ref);
}
template <typename T>
T & OptionalRef<T>::get() const {
if (this->ref == nullptr)
throw std::runtime_error("OptionalRef: attempt to dereference nullptr");
return *this->ref;
}
template <typename T>
void OptionalRef<T>::set(T & ref) noexcept {
this->ref = &ref;
}
template <typename T>
void OptionalRef<T>::clear() noexcept {
this->ref = nullptr;
}
template <typename T>
OptionalRef<T> & OptionalRef<T>::operator=(T & ref) {
this->set(ref);
return *this;
}
template <typename T>
OptionalRef<T>::operator bool() const noexcept {
return this->ref != nullptr;
}
} // namespace crepe
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