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#ifndef RFL_COMPARISONS_HPP_
#define RFL_COMPARISONS_HPP_
#include <type_traits>
#include "Result.hpp"
#include "parsing/schema/ValidationType.hpp"
namespace rfl {
template <auto _threshold>
struct EqualTo {
template <class T>
static Result<T> validate(T _value) noexcept {
constexpr auto threshold = static_cast<T>(_threshold);
if (_value != threshold) {
return error("Value expected to be equal to " +
std::to_string(threshold) + ", but got " +
std::to_string(_value) + ".");
}
return _value;
}
template <class T>
static parsing::schema::ValidationType to_schema() {
using ValidationType = parsing::schema::ValidationType;
const auto value =
std::is_floating_point_v<T>
? rfl::Variant<double, int>(static_cast<double>(_threshold))
: rfl::Variant<double, int>(static_cast<int>(_threshold));
return ValidationType{ValidationType::EqualTo{.value_ = value}};
}
};
template <auto _threshold>
struct Minimum {
template <class T>
static Result<T> validate(T _value) noexcept {
constexpr auto threshold = static_cast<T>(_threshold);
if (_value < threshold) {
return error("Value expected to be greater than or equal to " +
std::to_string(threshold) + ", but got " +
std::to_string(_value) + ".");
}
return _value;
}
template <class T>
static parsing::schema::ValidationType to_schema() {
using ValidationType = parsing::schema::ValidationType;
const auto value =
std::is_floating_point_v<T>
? rfl::Variant<double, int>(static_cast<double>(_threshold))
: rfl::Variant<double, int>(static_cast<int>(_threshold));
return ValidationType{ValidationType::Minimum{.value_ = value}};
}
};
template <auto _threshold>
struct ExclusiveMinimum {
template <class T>
static Result<T> validate(T _value) noexcept {
constexpr auto threshold = static_cast<T>(_threshold);
if (_value <= threshold) {
return error("Value expected to be greater than " +
std::to_string(threshold) + ", but got " +
std::to_string(_value) + ".");
}
return _value;
}
template <class T>
static parsing::schema::ValidationType to_schema() {
using ValidationType = parsing::schema::ValidationType;
const auto value =
std::is_floating_point_v<T>
? rfl::Variant<double, int>(static_cast<double>(_threshold))
: rfl::Variant<double, int>(static_cast<int>(_threshold));
return ValidationType{ValidationType::ExclusiveMinimum{.value_ = value}};
}
};
template <auto _threshold>
struct Maximum {
template <class T>
static Result<T> validate(T _value) noexcept {
constexpr auto threshold = static_cast<T>(_threshold);
if (_value > threshold) {
return error("Value expected to be less than or equal to " +
std::to_string(threshold) + ", but got " +
std::to_string(_value) + ".");
}
return _value;
}
template <class T>
static parsing::schema::ValidationType to_schema() {
using ValidationType = parsing::schema::ValidationType;
const auto value =
std::is_floating_point_v<T>
? rfl::Variant<double, int>(static_cast<double>(_threshold))
: rfl::Variant<double, int>(static_cast<int>(_threshold));
return ValidationType{ValidationType::Maximum{.value_ = value}};
}
};
template <auto _threshold>
struct ExclusiveMaximum {
template <class T>
static Result<T> validate(T _value) noexcept {
constexpr auto threshold = static_cast<T>(_threshold);
if (_value >= threshold) {
return error("Value expected to be less than " +
std::to_string(threshold) + ", but got " +
std::to_string(_value) + ".");
}
return _value;
}
template <class T>
static parsing::schema::ValidationType to_schema() {
using ValidationType = parsing::schema::ValidationType;
const auto value =
std::is_floating_point_v<T>
? rfl::Variant<double, int>(static_cast<double>(_threshold))
: rfl::Variant<double, int>(static_cast<int>(_threshold));
return ValidationType{ValidationType::ExclusiveMaximum{.value_ = value}};
}
};
template <auto _threshold>
struct NotEqualTo {
template <class T>
static Result<T> validate(T _value) noexcept {
constexpr auto threshold = static_cast<T>(_threshold);
if (_value == threshold) {
return error("Value expected to not be equal to " +
std::to_string(threshold) + ", but got " +
std::to_string(_value) + ".");
}
return _value;
}
template <class T>
static parsing::schema::ValidationType to_schema() {
using ValidationType = parsing::schema::ValidationType;
const auto value =
std::is_floating_point_v<T>
? rfl::Variant<double, int>(static_cast<double>(_threshold))
: rfl::Variant<double, int>(static_cast<int>(_threshold));
return ValidationType{ValidationType::NotEqualTo{.value_ = value}};
}
};
} // namespace rfl
#endif
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