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#ifndef RFL_DESCRIPTION_HPP_
#define RFL_DESCRIPTION_HPP_
#include <algorithm>
#include <string_view>
#include <tuple>
#include <type_traits>
#include <utility>
#include "Literal.hpp"
#include "default.hpp"
#include "internal/StringLiteral.hpp"
namespace rfl {
/// Used to add a description to the field - this is only relevant for the JSON
/// schema and will be ignored by the normal serialization routines.
template <internal::StringLiteral _description, class T>
struct Description {
/// The underlying type.
using Type = T;
/// The description of the field.
using Content = rfl::Literal<_description>;
using ReflectionType = Type;
Description() : value_(Type()) {}
Description(const Type& _value) : value_(_value) {}
Description(Type&& _value) noexcept : value_(std::move(_value)) {}
Description(Description<_description, T>&& _field) noexcept = default;
Description(const Description<_description, Type>& _field) = default;
template <class U>
Description(const Description<_description, U>& _field)
: value_(_field.get()) {}
template <class U>
Description(Description<_description, U>&& _field) : value_(_field.get()) {}
template <class U, typename std::enable_if<std::is_convertible_v<U, Type>,
bool>::type = true>
Description(const U& _value) : value_(_value) {}
template <class U, typename std::enable_if<std::is_convertible_v<U, Type>,
bool>::type = true>
Description(U&& _value) noexcept : value_(std::forward<U>(_value)) {}
template <class U, typename std::enable_if<std::is_convertible_v<U, Type>,
bool>::type = true>
Description(const Description<_description, U>& _field)
: value_(_field.value()) {}
/// Assigns the underlying object to its default value.
template <class U = Type,
typename std::enable_if<std::is_default_constructible_v<U>,
bool>::type = true>
Description(const Default&) : value_(Type()) {}
~Description() = default;
/// The description of the field, for internal use.
constexpr static const internal::StringLiteral description_ = _description;
/// Returns the underlying object.
const Type& get() const { return value_; }
/// Returns the underlying object.
Type& operator()() { return value_; }
/// Returns the underlying object.
const Type& operator()() const { return value_; }
/// Assigns the underlying object.
auto& operator=(const Type& _value) {
value_ = _value;
return *this;
}
/// Assigns the underlying object.
auto& operator=(Type&& _value) noexcept {
value_ = std::move(_value);
return *this;
}
/// Assigns the underlying object.
template <class U, typename std::enable_if<std::is_convertible_v<U, Type>,
bool>::type = true>
auto& operator=(const U& _value) {
value_ = _value;
return *this;
}
/// Assigns the underlying object to its default value.
template <class U = Type,
typename std::enable_if<std::is_default_constructible_v<U>,
bool>::type = true>
auto& operator=(const Default&) {
value_ = Type();
return *this;
}
/// Assigns the underlying object.
Description<_description, T>& operator=(
const Description<_description, T>& _field) = default;
/// Assigns the underlying object.
Description<_description, T>& operator=(
Description<_description, T>&& _field) = default;
/// Assigns the underlying object.
template <class U>
auto& operator=(const Description<_description, U>& _field) {
value_ = _field.get();
return *this;
}
/// Assigns the underlying object.
template <class U>
auto& operator=(Description<_description, U>&& _field) {
value_ = std::forward<T>(_field.value_);
return *this;
}
/// Returns the underlying object - necessary for the reflection to work.
const Type& reflection() const { return value_; }
/// Assigns the underlying object.
void set(const Type& _value) { value_ = _value; }
/// Assigns the underlying object.
void set(Type&& _value) { value_ = std::move(_value); }
/// Returns the underlying object.
Type& value() { return value_; }
/// Returns the underlying object.
const Type& value() const { return value_; }
/// The underlying value.
Type value_;
};
} // namespace rfl
#endif
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