mirror of
https://github.com/aantron/better-enums.git
synced 2025-12-06 16:56:42 +08:00
720 lines
27 KiB
C++
720 lines
27 KiB
C++
/// @file EnumInternal.h
|
|
/// Internal definitions for the enum type generator in `Enum.h`.
|
|
///
|
|
/// Several definitions must precede the public `ENUM` macro and the interface
|
|
/// defined in it. This includes helper classes and all `constexpr` functions,
|
|
/// which cannot be forward-declared. In order to make `Enum.h` more readable,
|
|
/// these definitions are placed into this file, which is included from
|
|
/// `Enum.h`.
|
|
///
|
|
/// Throughout the internal code, macro and template parameters named `EnumType`
|
|
/// stand for the class types generated by the `ENUM` macro, while parameters
|
|
/// named `EnumValue` stand for the internal C++ enum types. Roughly,
|
|
/// `EnumValue == EnumType::_Value`.
|
|
///
|
|
/// @todo Generating the values array using the `_eat_assign` template is
|
|
/// expensive, and the cost seems to be due to the instantiation of
|
|
/// compile-time objects, not due to templates. Trying statement expressions
|
|
/// (a GNU extension) didn't work, because statement expressions aren't
|
|
/// allowed "at file scope" (in this case, within a class type declared at
|
|
/// file scope).
|
|
/// @todo Compile time is currently dominated by the cost of static
|
|
/// instantiation. Try to reduce this cost by statically instantiating data
|
|
/// structures for each type, then dynamically passing them to a small
|
|
/// number of actual processing functions - which only have to be
|
|
/// instantiated once for every different underlying type. Underlying types
|
|
/// are very likely to collide.
|
|
|
|
// TODO Make it possible for enums to be map keys.
|
|
// TODO Rename internal functions to match public interface conventions.
|
|
|
|
|
|
|
|
#pragma once
|
|
|
|
#include <cstddef> // For size_t.
|
|
#include <cstring> // For string and memory routines.
|
|
#include <stdexcept>
|
|
#include <type_traits>
|
|
|
|
#include "EnumPreprocessorMap.h"
|
|
|
|
|
|
|
|
/// Internal namespace for compile-time and private run-time functions used by
|
|
/// the enum class generator.
|
|
namespace _enum {
|
|
|
|
|
|
|
|
/// Weak symbols to allow the same data structures to be defined statically in
|
|
/// multiple translation units, then be collapsed to one definition by the
|
|
/// linker.
|
|
#define _ENUM_WEAK __attribute__((weak))
|
|
|
|
|
|
|
|
// Forward declaration of _Internal, for use in a friend declation in _Iterable.
|
|
template <typename EnumType> class _Enum;
|
|
|
|
// TODO Make these standard-compliant.
|
|
/// Template for iterable objects over enum names and values.
|
|
///
|
|
/// The iterables are intended for use with C++11 `for-each` syntax. They are
|
|
/// returned by each enum type's static `names()` and `values()` methods. For
|
|
/// example, `EnumType::values()` is an iterable over valid values of type
|
|
/// `EnumType`, and allows the following form:
|
|
///
|
|
/// ~~~{.cc}
|
|
/// for (EnumType e : EnumType::values()) {
|
|
/// // ...
|
|
/// }
|
|
/// ~~~
|
|
///
|
|
/// The iterable class is templated to reuse code between the name and value
|
|
/// iterables.
|
|
///
|
|
/// @tparam Element Type of element returned during iteration: either the enum
|
|
/// type (for iterables over `values()`) or `const char*` (for iterables
|
|
/// over `names()`).
|
|
/// @tparam EnumType The enum type.
|
|
/// @tparam ArrayType Type of the array actually being iterated over. The reason
|
|
/// this is a type parameter is because for the iterable over `values()`,
|
|
/// the underlying array type is `const EnumType::_value * const`, instead
|
|
/// of `const EnumType * const`, as one might first expect. Objects of type
|
|
/// `EnumType` are constructed on the fly during iteration from values of
|
|
/// type `EnumType::_value` (this is a no-op at run-time). For iterables
|
|
/// over `names()`, `ArrayType` is simply `const char * const`, as would be
|
|
/// expeted.
|
|
///
|
|
/// @internal
|
|
///
|
|
/// An `_Iterable` stores a reference to the array (of either names or values)
|
|
/// that will be iterated over. `_Iterable::iterator` additionally stores an
|
|
/// index into the array. The iterator begins at the first valid index. Each
|
|
/// time it is incremented, the iterator advances to the next valid index. The
|
|
/// `end()` iterator stores an index equal to the size of the array. Values are
|
|
/// considered valid if they are not equal to the bad value, are not below the
|
|
/// minimum value, and are not above the maximum value. Names are valid if they
|
|
/// are the name of a valid value.
|
|
|
|
template <typename EnumType, typename Iterator>
|
|
class _Iterable;
|
|
|
|
template <typename EnumType>
|
|
class _ValueIterator {
|
|
public:
|
|
constexpr EnumType operator *() const
|
|
{
|
|
return EnumType::_value_array[_index];
|
|
}
|
|
|
|
_ValueIterator& operator ++()
|
|
{
|
|
if (_index < EnumType::_size)
|
|
++_index;
|
|
|
|
return *this;
|
|
}
|
|
|
|
constexpr bool operator ==(const _ValueIterator &other) const
|
|
{
|
|
return other._index == _index;
|
|
}
|
|
|
|
constexpr bool operator !=(const _ValueIterator &other) const
|
|
{
|
|
return !(*this == other);
|
|
}
|
|
|
|
private:
|
|
constexpr _ValueIterator(size_t index) : _index(index) { }
|
|
|
|
size_t _index;
|
|
|
|
friend _Iterable<EnumType, _ValueIterator<EnumType>>;
|
|
};
|
|
|
|
template <typename EnumType>
|
|
class _NameIterator {
|
|
public:
|
|
const char* operator *() const
|
|
{
|
|
return EnumType::_getProcessedName(_index);
|
|
}
|
|
|
|
_NameIterator& operator ++()
|
|
{
|
|
if (_index < EnumType::_size)
|
|
++_index;
|
|
|
|
return *this;
|
|
}
|
|
|
|
constexpr bool operator ==(const _NameIterator &other) const
|
|
{
|
|
return other._index == _index;
|
|
}
|
|
|
|
constexpr bool operator !=(const _NameIterator &other) const
|
|
{
|
|
return !(*this == other);
|
|
}
|
|
|
|
private:
|
|
constexpr _NameIterator(size_t index) : _index(index) { }
|
|
|
|
size_t _index;
|
|
|
|
friend _Iterable<EnumType, _NameIterator<EnumType>>;
|
|
};
|
|
|
|
template <typename EnumType, typename Iterator>
|
|
class _Iterable {
|
|
public:
|
|
using iterator = Iterator;
|
|
|
|
constexpr iterator begin() const
|
|
{
|
|
return iterator(0);
|
|
}
|
|
|
|
constexpr iterator end() const
|
|
{
|
|
return iterator(EnumType::_size);
|
|
}
|
|
|
|
constexpr size_t size() const { return EnumType::size(); }
|
|
|
|
private:
|
|
constexpr _Iterable() { };
|
|
|
|
friend EnumType;
|
|
};
|
|
|
|
|
|
|
|
/// Compile-time helper class used to transform expressions of the forms `A` and
|
|
/// `A = 42` into values of type `UnderlyingType` that can be used in
|
|
/// initializer lists. The `ENUM` macro is passed a mixture of simple enum
|
|
/// constants (`A`) and constants with an explicitly-assigned value (`A = 42`).
|
|
/// Both must be turned into expressions of type `UnderlyingType` in order to be
|
|
/// usable in initializer lists of the values array. This is done by prepending
|
|
/// a cast to the expression, as follows:
|
|
/// ~~~{.cc}
|
|
/// (_eat_assign<UnderlyingType>)A
|
|
/// (_eat_assign<UnderlyingType>)A = 42
|
|
/// ~~~
|
|
/// The second case is the interesting one. At compile time, the value `A` is
|
|
/// first converted to an equivalent `_eat_assign<UnderlyingType>` object, that
|
|
/// stores the value. This object has an overriden assignment operator, which
|
|
/// "eats" the `= 42` and returns the stored value of `A`, which is then used in
|
|
/// the initializer list.
|
|
/// @tparam UnderlyingType Final type used in the values array.
|
|
template <typename UnderlyingType>
|
|
class _eat_assign {
|
|
private:
|
|
UnderlyingType _value;
|
|
|
|
public:
|
|
explicit constexpr _eat_assign(UnderlyingType value) : _value(value) { }
|
|
template <typename Any>
|
|
constexpr UnderlyingType operator =(Any dummy) const
|
|
{ return _value; }
|
|
constexpr operator UnderlyingType () const { return _value; }
|
|
};
|
|
|
|
/// Prepends its second argument with the cast `(_eat_assign<UnderlyingType>)`
|
|
/// in order to make it usable in initializer lists. See `_eat_assign`.
|
|
#define _ENUM_EAT_ASSIGN_SINGLE(UnderlyingType, expression) \
|
|
((_enum::_eat_assign<UnderlyingType>)expression)
|
|
|
|
/// Prepends each of its arguments with the casts
|
|
/// `(_eat_assign<UnderlyingType>)`, creating the elements of an initializer
|
|
/// list of objects of type `UnderlyingType`.
|
|
#define _ENUM_EAT_ASSIGN(UnderlyingType, ...) \
|
|
_ENUM_PP_MAP(_ENUM_EAT_ASSIGN_SINGLE, UnderlyingType, __VA_ARGS__)
|
|
|
|
|
|
|
|
/// Stringizes its second argument. The first argument is not used - it is there
|
|
/// only because `_ENUM_PP_MAP` expects it.
|
|
#define _ENUM_STRINGIZE_SINGLE(ignored, expression) #expression
|
|
|
|
/// Stringizes each of its arguments.
|
|
#define _ENUM_STRINGIZE(...) \
|
|
_ENUM_PP_MAP(_ENUM_STRINGIZE_SINGLE, ignored, __VA_ARGS__)
|
|
|
|
|
|
|
|
/// Symbols that end a constant name. Constant can be defined in several ways,
|
|
/// for example:
|
|
/// ~~~{.cc}
|
|
/// A
|
|
/// A = AnotherConstant
|
|
/// A = 42
|
|
/// A=42
|
|
/// ~~~
|
|
/// These definitions are stringized in their entirety by `_ENUM_STRINGIZE`.
|
|
/// This means that in addition to the actual constant names, the raw `_names`
|
|
/// arrays potentially contain additional trailing symbols. `_ENUM_NAME_ENDERS`
|
|
/// defines an array of symbols that would end the part of the string that is
|
|
/// the actual constant name. Note that it is important that the null terminator
|
|
/// is implicitly present in this array.
|
|
#define _ENUM_NAME_ENDERS "= \t\n"
|
|
|
|
/// Compile-time function that determines whether a character terminates the
|
|
/// name portion of an enum constant definition.
|
|
///
|
|
/// Call as `_endsName(c)`.
|
|
///
|
|
/// @param c Character to be tested.
|
|
/// @param index Current index into the `_ENUM_NAME_ENDERS` array.
|
|
/// @return `true` if and only if `c` is one of the characters in
|
|
/// `_ENUM_NAME_ENDERS`, including the implicit null terminator in that
|
|
/// array.
|
|
constexpr bool _endsName(char c, size_t index = 0)
|
|
{
|
|
return
|
|
// First, test whether c is equal to the current character in
|
|
// _ENUM_NAME_ENDERS. In the case where c is the null terminator, this
|
|
// will cause _endsName to return true when it has exhausted
|
|
// _ENUM_NAME_ENDERS.
|
|
c == _ENUM_NAME_ENDERS[index] ? true :
|
|
// If _ENUM_NAME_ENDERS has been exhausted and c never matched, return
|
|
// false.
|
|
_ENUM_NAME_ENDERS[index] == '\0' ? false :
|
|
// Otherwise, go on to the next character in _ENUM_ENDERS.
|
|
_endsName(c, index + 1);
|
|
}
|
|
|
|
constexpr char _toLowercaseAscii(char c)
|
|
{
|
|
return c >= 0x41 && c <= 0x5A ? c + 0x20 : c;
|
|
}
|
|
|
|
/// Compile-time function that matches a stringized name (with potential
|
|
/// trailing spaces and equals signs) against a reference name (a regular
|
|
/// null-terminated string).
|
|
///
|
|
/// Call as `_namesMatch(stringizedName, referenceName)`.
|
|
///
|
|
/// @param stringizedName A stringized constant name, potentially terminated by
|
|
/// one of the symbols in `_ENUM_NAME_ENDERS` instead of a null terminator.
|
|
/// @param referenceName A name of interest. Null-terminated.
|
|
/// @param index Current index into both names.
|
|
/// @return `true` if and only if the portion of `stringizedName` before any of
|
|
/// the symbols in `_ENUM_NAME_ENDERS` exactly matches `referenceName`.
|
|
constexpr bool _namesMatch(const char *stringizedName,
|
|
const char *referenceName,
|
|
size_t index = 0)
|
|
{
|
|
return
|
|
// If the current character in the stringized name is a name ender,
|
|
// return true if the reference name ends as well, and false otherwise.
|
|
_endsName(stringizedName[index]) ? referenceName[index] == '\0' :
|
|
// The current character in the stringized name is not a name ender. If
|
|
// the reference name ended, then it is too short, so return false.
|
|
referenceName[index] == '\0' ? false :
|
|
// Neither name has ended. If the two current characters don't match,
|
|
// return false.
|
|
stringizedName[index] !=
|
|
referenceName[index] ? false :
|
|
// Otherwise, if the characters match, continue by comparing the rest of
|
|
// the names.
|
|
_namesMatch(stringizedName, referenceName, index + 1);
|
|
}
|
|
|
|
constexpr bool _namesMatchNocase(const char *stringizedName,
|
|
const char *referenceName,
|
|
size_t index = 0)
|
|
{
|
|
return
|
|
_endsName(stringizedName[index]) ? referenceName[index] == '\0' :
|
|
referenceName[index] == '\0' ? false :
|
|
_toLowercaseAscii(stringizedName[index]) !=
|
|
_toLowercaseAscii(referenceName[index]) ? false :
|
|
_namesMatchNocase(stringizedName, referenceName, index + 1);
|
|
}
|
|
|
|
#define _ENUM_NOT_FOUND ((size_t)-1)
|
|
|
|
|
|
|
|
/// Functions and types used to compute range properties such as the minimum and
|
|
/// maximum declared enum values, and the total number of valid enum values.
|
|
namespace _range {
|
|
|
|
template <typename UnderlyingType>
|
|
constexpr UnderlyingType _findMinLoop(const UnderlyingType *values,
|
|
size_t valueCount, size_t index,
|
|
UnderlyingType best)
|
|
{
|
|
return
|
|
index == valueCount ? best :
|
|
values[index] < best ?
|
|
_findMinLoop(values, valueCount, index + 1, values[index]) :
|
|
_findMinLoop(values, valueCount, index + 1, best);
|
|
}
|
|
|
|
template <typename UnderlyingType>
|
|
constexpr UnderlyingType _findMin(const UnderlyingType *values,
|
|
size_t valueCount)
|
|
{
|
|
return _findMinLoop(values, valueCount, 1, values[0]);
|
|
}
|
|
|
|
template <typename UnderlyingType>
|
|
constexpr UnderlyingType _findMaxLoop(const UnderlyingType *values,
|
|
size_t valueCount, size_t index,
|
|
UnderlyingType best)
|
|
{
|
|
return
|
|
index == valueCount ? best :
|
|
values[index] > best ?
|
|
_findMaxLoop(values, valueCount, index + 1, values[index]) :
|
|
_findMaxLoop(values, valueCount, index + 1, best);
|
|
}
|
|
|
|
template <typename UnderlyingType>
|
|
constexpr UnderlyingType _findMax(const UnderlyingType *values, size_t count)
|
|
{
|
|
return _findMaxLoop(values, count, 1, values[0]);
|
|
}
|
|
|
|
} // namespace _range
|
|
|
|
} // namespace _enum
|
|
|
|
// TODO Note that the static_assert for _rawSize > 0 never really gets a chance
|
|
// to fail in practice, because the preprocessor macros break before that.
|
|
|
|
|
|
|
|
namespace _enum {
|
|
|
|
// TODO Consider reserving memory statically. This will probably entail a great
|
|
// compile-time slowdown, however.
|
|
static inline const char * const* _processNames(const char * const *rawNames,
|
|
size_t count)
|
|
{
|
|
// Allocate the replacement names array.
|
|
const char **processedNames = new const char*[count];
|
|
if (processedNames == nullptr)
|
|
return nullptr;
|
|
|
|
// Count the number of bytes needed in the replacement names array (an upper
|
|
// bound).
|
|
size_t bytesNeeded = 0;
|
|
for (size_t index = 0; index < count; ++index)
|
|
bytesNeeded += std::strlen(rawNames[index]) + 1;
|
|
|
|
// Allocate memory for the string data.
|
|
char *nameStorage = new char[bytesNeeded];
|
|
if (nameStorage == nullptr) {
|
|
delete[] processedNames;
|
|
return nullptr;
|
|
}
|
|
|
|
// Trim each name and place the result in storage, then save a pointer to
|
|
// it.
|
|
char *writePointer = nameStorage;
|
|
for (size_t index = 0; index < count; ++index) {
|
|
const char *nameEnd =
|
|
std::strpbrk(rawNames[index], _ENUM_NAME_ENDERS);
|
|
|
|
size_t symbolCount =
|
|
nameEnd == nullptr ?
|
|
std::strlen(rawNames[index]) :
|
|
nameEnd - rawNames[index];
|
|
|
|
std::strncpy(writePointer, rawNames[index], symbolCount);
|
|
processedNames[index] = writePointer;
|
|
writePointer += symbolCount;
|
|
|
|
*writePointer = '\0';
|
|
++writePointer;
|
|
}
|
|
|
|
return processedNames;
|
|
}
|
|
|
|
#define _ENUM_TAG(EnumType) _tag_ ## EnumType
|
|
#define _ENUM_TAG_DECLARATION(EnumType) \
|
|
namespace _enum { \
|
|
struct _ENUM_TAG(EnumType); \
|
|
}
|
|
|
|
template <typename Tag> class _GeneratedArrays;
|
|
|
|
#define _ENUM_ARRAYS(EnumType, UnderlyingType, Tag, ...) \
|
|
namespace _enum { \
|
|
\
|
|
template <> \
|
|
class _GeneratedArrays<Tag> { \
|
|
protected: \
|
|
using _Integral = UnderlyingType; \
|
|
\
|
|
public: \
|
|
constexpr static const char* _name = #EnumType; \
|
|
\
|
|
enum _Enumerated : _Integral { __VA_ARGS__ }; \
|
|
\
|
|
protected: \
|
|
static constexpr _Enumerated _value_array[] = \
|
|
{ _ENUM_EAT_ASSIGN(_Enumerated, __VA_ARGS__) }; \
|
|
\
|
|
static constexpr const char *_name_array[] = \
|
|
{ _ENUM_STRINGIZE(__VA_ARGS__) }; \
|
|
\
|
|
static constexpr size_t _size = \
|
|
_ENUM_PP_COUNT(__VA_ARGS__); \
|
|
}; \
|
|
\
|
|
}
|
|
|
|
template <typename Tag>
|
|
class _Enum : public _GeneratedArrays<Tag> {
|
|
protected:
|
|
using _arrays = _GeneratedArrays<Tag>;
|
|
using _arrays::_value_array;
|
|
using _arrays::_name_array;
|
|
|
|
public:
|
|
using typename _arrays::_Enumerated;
|
|
using typename _arrays::_Integral;
|
|
|
|
using _arrays::_size;
|
|
static_assert(_size > 0, "no constants defined in enum type");
|
|
|
|
static const _Enum _first;
|
|
static const _Enum _last;
|
|
static const _Enum _min;
|
|
static const _Enum _max;
|
|
|
|
static const size_t _span;
|
|
|
|
_Enum() = delete;
|
|
constexpr _Enum(_Enumerated constant) : _value(constant) { }
|
|
|
|
constexpr _Integral to_int() const
|
|
{
|
|
return _value;
|
|
}
|
|
|
|
constexpr static _Enum _from_int(_Integral value)
|
|
{
|
|
return _value_array[_from_int_loop(value, true)];
|
|
}
|
|
|
|
constexpr static _Enum _from_int_unchecked(_Integral value)
|
|
{
|
|
return (_Enumerated)value;
|
|
}
|
|
|
|
const char* to_string() const
|
|
{
|
|
_processNames();
|
|
|
|
for (size_t index = 0; index < _size; ++index) {
|
|
if (_value_array[index] == _value)
|
|
return _processedNames[index];
|
|
}
|
|
|
|
throw std::domain_error("Enum::_to_string: invalid enum value");
|
|
}
|
|
|
|
constexpr static _Enum _from_string(const char *name)
|
|
{
|
|
return _value_array[_from_string_loop(name, true)];
|
|
}
|
|
|
|
constexpr static _Enum _from_string_nocase(const char *name)
|
|
{
|
|
return _value_array[_from_string_nocase_loop(name, true)];
|
|
}
|
|
|
|
constexpr static bool _is_valid(_Integral value)
|
|
{
|
|
return _from_int_loop(value, false) != _ENUM_NOT_FOUND;
|
|
}
|
|
|
|
constexpr static bool _is_valid(const char *name)
|
|
{
|
|
return _from_string_loop(name, false) != _ENUM_NOT_FOUND;
|
|
}
|
|
|
|
constexpr static bool _is_valid_nocase(const char *name)
|
|
{
|
|
return _from_string_nocase_loop(name, false) != _ENUM_NOT_FOUND;
|
|
}
|
|
|
|
constexpr operator _Enumerated() const { return _value; }
|
|
|
|
protected:
|
|
_Enumerated _value;
|
|
|
|
static const char * const *_processedNames;
|
|
|
|
static void _processNames()
|
|
{
|
|
if (_processedNames == nullptr)
|
|
_processedNames = _enum::_processNames(_name_array, _size);
|
|
}
|
|
|
|
static const char* _getProcessedName(size_t index)
|
|
{
|
|
_processNames();
|
|
return _processedNames[index];
|
|
}
|
|
|
|
using _ValueIterable = _Iterable<_Enum, _ValueIterator<_Enum>>;
|
|
using _NameIterable = _Iterable<_Enum, _NameIterator<_Enum>>;
|
|
|
|
friend _ValueIterator<_Enum>;
|
|
friend _NameIterator<_Enum>;
|
|
|
|
public:
|
|
static const _ValueIterable _values;
|
|
static const _NameIterable _names;
|
|
|
|
protected:
|
|
constexpr static size_t _from_int_loop(_Integral value,
|
|
bool throw_exception,
|
|
size_t index = 0)
|
|
{
|
|
return
|
|
index == _size ?
|
|
(throw_exception ?
|
|
throw std::runtime_error(
|
|
"Enum::from_int: invalid integer value") :
|
|
_ENUM_NOT_FOUND) :
|
|
_value_array[index] == value ? index :
|
|
_from_int_loop(value, throw_exception, index + 1);
|
|
}
|
|
|
|
constexpr static size_t _from_string_loop(const char *name,
|
|
bool throw_exception,
|
|
size_t index = 0)
|
|
{
|
|
return
|
|
index == _size ?
|
|
(throw_exception ?
|
|
throw std::runtime_error(
|
|
"Enum::_from_string: invalid string argument") :
|
|
_ENUM_NOT_FOUND) :
|
|
_namesMatch(_name_array[index], name) ? index :
|
|
_from_string_loop(name, throw_exception, index + 1);
|
|
}
|
|
|
|
constexpr static size_t _from_string_nocase_loop(const char *name,
|
|
bool throw_exception,
|
|
size_t index = 0)
|
|
{
|
|
return
|
|
index == _size ?
|
|
(throw_exception ?
|
|
throw std::runtime_error(
|
|
"Enum::_from_string_nocase: invalid string argument") :
|
|
_ENUM_NOT_FOUND) :
|
|
_namesMatchNocase(_name_array[index], name) ? index :
|
|
_from_string_nocase_loop(name, throw_exception, index + 1);
|
|
}
|
|
|
|
public:
|
|
constexpr bool operator ==(const _Enum &other) const
|
|
{ return _value == other._value; }
|
|
constexpr bool operator ==(const _Enumerated value) const
|
|
{ return _value == value; }
|
|
template <typename T> bool operator ==(T other) const = delete;
|
|
|
|
constexpr bool operator !=(const _Enum &other) const
|
|
{ return !(*this == other); }
|
|
constexpr bool operator !=(const _Enumerated value) const
|
|
{ return !(*this == value); }
|
|
template <typename T> bool operator !=(T other) const = delete;
|
|
|
|
constexpr bool operator <(const _Enum &other) const
|
|
{ return _value < other._value; }
|
|
constexpr bool operator <(const _Enumerated value) const
|
|
{ return _value < value; }
|
|
template <typename T> bool operator <(T other) const = delete;
|
|
|
|
constexpr bool operator <=(const _Enum &other) const
|
|
{ return _value <= other._value; }
|
|
constexpr bool operator <=(const _Enumerated value) const
|
|
{ return _value <= value; }
|
|
template <typename T> bool operator <=(T other) const = delete;
|
|
|
|
constexpr bool operator >(const _Enum &other) const
|
|
{ return _value > other._value; }
|
|
constexpr bool operator >(const _Enumerated value) const
|
|
{ return _value > value; }
|
|
template <typename T> bool operator >(T other) const = delete;
|
|
|
|
constexpr bool operator >=(const _Enum &other) const
|
|
{ return _value >= other._value; }
|
|
constexpr bool operator >=(const _Enumerated value) const
|
|
{ return _value >= value; }
|
|
template <typename T> bool operator >=(T other) const = delete;
|
|
|
|
int operator -() const = delete;
|
|
template <typename T> int operator +(T other) const = delete;
|
|
template <typename T> int operator -(T other) const = delete;
|
|
template <typename T> int operator *(T other) const = delete;
|
|
template <typename T> int operator /(T other) const = delete;
|
|
template <typename T> int operator %(T other) const = delete;
|
|
|
|
template <typename T> int operator <<(T other) const = delete;
|
|
template <typename T> int operator >>(T other) const = delete;
|
|
|
|
int operator ~() const = delete;
|
|
template <typename T> int operator &(T other) const = delete;
|
|
template <typename T> int operator |(T other) const = delete;
|
|
template <typename T> int operator ^(T other) const = delete;
|
|
|
|
int operator !() const = delete;
|
|
template <typename T> int operator &&(T other) const = delete;
|
|
template <typename T> int operator ||(T other) const = delete;
|
|
};
|
|
|
|
// TODO Investigate what happens when this is mixed with multiple compilation.
|
|
#define _ENUM_STATIC_DEFINITIONS(EnumType, Tag) \
|
|
namespace _enum { \
|
|
\
|
|
template <> \
|
|
constexpr EnumType::_ValueIterable EnumType::_values{}; \
|
|
\
|
|
template <> \
|
|
constexpr EnumType::_NameIterable EnumType::_names{}; \
|
|
\
|
|
template <> \
|
|
constexpr EnumType EnumType::_first = \
|
|
EnumType::_from_int(EnumType::_value_array[0]); \
|
|
\
|
|
template <> \
|
|
constexpr EnumType EnumType::_last = \
|
|
EnumType::_from_int(EnumType::_value_array[EnumType::_size - 1]); \
|
|
\
|
|
template <> \
|
|
constexpr EnumType EnumType::_min = \
|
|
_range::_findMin(EnumType::_value_array, EnumType::_size); \
|
|
\
|
|
template <> \
|
|
constexpr EnumType EnumType::_max = \
|
|
_range::_findMax(EnumType::_value_array, EnumType::_size); \
|
|
\
|
|
template <> \
|
|
constexpr size_t EnumType::_span = _max.to_int() - _min.to_int() + 1; \
|
|
\
|
|
constexpr _GeneratedArrays<Tag>::_Enumerated _ENUM_WEAK \
|
|
_GeneratedArrays<Tag>::_value_array[]; \
|
|
\
|
|
constexpr const char * _ENUM_WEAK _GeneratedArrays<Tag>::_name_array[]; \
|
|
\
|
|
template <> \
|
|
const char * const * _ENUM_WEAK EnumType::_processedNames = nullptr; \
|
|
}
|
|
|
|
}
|