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#pragma once
#include "pre_config.hpp"
#include <stdexcept>
#include <type_traits>
#define CRU_UNUSED(entity) static_cast<void>(entity);
#define CRU_DEFAULT_COPY(classname) \
classname(const classname&) = default; \
classname& operator=(const classname&) = default;
#define CRU_DEFAULT_MOVE(classname) \
classname(classname&&) = default; \
classname& operator=(classname&&) = default;
#define CRU_DELETE_COPY(classname) \
classname(const classname&) = delete; \
classname& operator=(const classname&) = delete;
#define CRU_DELETE_MOVE(classname) \
classname(classname&&) = delete; \
classname& operator=(classname&&) = delete;
namespace cru {
class Object {
public:
Object() = default;
CRU_DEFAULT_COPY(Object)
CRU_DEFAULT_MOVE(Object)
virtual ~Object() = default;
};
struct Interface {
Interface() = default;
CRU_DELETE_COPY(Interface)
CRU_DELETE_MOVE(Interface)
virtual ~Interface() = default;
};
[[noreturn]] inline void UnreachableCode() {
throw std::runtime_error("Unreachable code.");
}
} // namespace cru
template <typename Enum>
struct enable_bitmask_operators : std::false_type {};
#define CRU_ENABLE_BITMASK_OPERATORS(enumname) \
template <> \
struct enable_bitmask_operators<enumname> : std::true_type {};
template <typename Enum>
auto operator|(Enum lhs, Enum rhs)
-> std::enable_if_t<enable_bitmask_operators<Enum>::value, Enum> {
using underlying = typename std::underlying_type<Enum>::type;
return static_cast<Enum>(static_cast<underlying>(lhs) |
static_cast<underlying>(rhs));
}
template <typename Enum>
auto operator&(Enum lhs, Enum rhs)
-> std::enable_if_t<enable_bitmask_operators<Enum>::value, Enum> {
using underlying = typename std::underlying_type<Enum>::type;
return static_cast<Enum>(static_cast<underlying>(lhs) &
static_cast<underlying>(rhs));
}
template <typename Enum>
auto operator^(Enum lhs, Enum rhs)
-> std::enable_if_t<enable_bitmask_operators<Enum>::value, Enum> {
using underlying = typename std::underlying_type<Enum>::type;
return static_cast<Enum>(static_cast<underlying>(lhs) ^
static_cast<underlying>(rhs));
}
template <typename Enum>
auto operator~(Enum rhs)
-> std::enable_if_t<enable_bitmask_operators<Enum>::value, Enum> {
using underlying = typename std::underlying_type<Enum>::type;
return static_cast<Enum>(~static_cast<underlying>(rhs));
}
template <typename Enum>
auto operator|=(Enum& lhs, Enum rhs)
-> std::enable_if_t<enable_bitmask_operators<Enum>::value, Enum&> {
using underlying = typename std::underlying_type<Enum>::type;
lhs = static_cast<Enum>(static_cast<underlying>(lhs) |
static_cast<underlying>(rhs));
return lhs;
}
template <typename Enum>
auto operator&=(Enum& lhs, Enum rhs)
-> std::enable_if_t<enable_bitmask_operators<Enum>::value, Enum&> {
using underlying = typename std::underlying_type<Enum>::type;
lhs = static_cast<Enum>(static_cast<underlying>(lhs) &
static_cast<underlying>(rhs));
return lhs;
}
template <typename Enum>
auto operator^=(Enum& lhs, Enum rhs)
-> std::enable_if_t<enable_bitmask_operators<Enum>::value, Enum&> {
using underlying = typename std::underlying_type<Enum>::type;
lhs = static_cast<Enum>(static_cast<underlying>(lhs) ^
static_cast<underlying>(rhs));
return lhs;
}
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