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-rw-r--r--src/common/Utilities/SmartEnum.h100
1 files changed, 77 insertions, 23 deletions
diff --git a/src/common/Utilities/SmartEnum.h b/src/common/Utilities/SmartEnum.h
index 99b4aa06e9d..6624102cf56 100644
--- a/src/common/Utilities/SmartEnum.h
+++ b/src/common/Utilities/SmartEnum.h
@@ -18,44 +18,98 @@
#ifndef TRINITY_SMARTENUM_H
#define TRINITY_SMARTENUM_H
-#include "smart_enum.hpp"
+#include "IteratorPair.h"
struct EnumText
{
- constexpr EnumText(char const* t = nullptr, char const* d = nullptr) : Title(t), Description(d ? d : t) {}
+ EnumText(char const* c, char const* t, char const* d) : Constant(c), Title(t), Description(d) {}
+ // Enum constant of the value
+ char const* const Constant;
// Human-readable title of the value
char const* const Title;
// Human-readable description of the value
char const* const Description;
-
- protected:
- constexpr EnumText(char const* n, EnumText e) : Title(e.Title ? e.Title : n), Description(e.Description ? e.Description : Title) {}
};
-struct FullEnumText : public EnumText
+namespace Trinity
{
- constexpr FullEnumText(char const* constant, EnumText e) : EnumText(constant, e), Constant(constant) {}
- // Enum constant of the value
- char const* const Constant;
-};
+ namespace Impl
+ {
+ template <typename Enum>
+ struct EnumUtils
+ {
+ static size_t Count();
+ static EnumText ToString(Enum value);
+ static Enum FromIndex(size_t index);
+ };
+ }
+}
-template <typename E>
class EnumUtils
{
public:
- static constexpr auto Begin() { return smart_enum::begin<E>(); }
- static constexpr auto End() { return smart_enum::end<E>(); }
- static constexpr auto Iterate() { return smart_enum::range<E>(); }
- static constexpr FullEnumText ToString(E value)
+ template <typename Enum>
+ static size_t Count() { return Trinity::Impl::EnumUtils<Enum>::Count(); }
+ template <typename Enum>
+ static EnumText ToString(Enum value) { return Trinity::Impl::EnumUtils<Enum>::ToString(value); }
+ template <typename Enum>
+ static Enum FromIndex(size_t index) { return Trinity::Impl::EnumUtils<Enum>::FromIndex(index); }
+
+ template <typename Enum>
+ class Iterator
{
- return { smart_enum::to_string<E>(value), smart_enum::data<E>(value) };
- }
- static constexpr char const* ToConstant(E value) { return ToString(value).Constant; }
- static constexpr char const* ToTitle(E value) { return ToString(value).Title; }
- static constexpr char const* ToDescription(E value) { return ToString(value).Description; }
-};
+ public:
+ using iterator_category = std::random_access_iterator_tag;
+ using value_type = Enum;
+ using pointer = Enum*;
+ using reference = Enum&;
+ using difference_type = std::ptrdiff_t;
+
+ Iterator() : _index(EnumUtils::Count<Enum>()) {}
+ explicit Iterator(size_t index) : _index(index) { }
+
+ bool operator==(const Iterator& other) const { return other._index == _index; }
+ bool operator!=(const Iterator& other) const { return !operator==(other); }
+ difference_type operator-(Iterator const& other) const { return _index - other._index; }
+ bool operator<(const Iterator& other) const { return _index < other._index; }
+ bool operator<=(const Iterator& other) const { return _index <= other._index; }
+ bool operator>(const Iterator& other) const { return _index > other._index; }
+ bool operator>=(const Iterator& other) const { return _index >= other._index; }
-#define SMART_ENUM_BOUND(type, name) static constexpr type name = type(smart_enum::value_of<type>(smart_enum::count<type>()-1)+1);
-#define SMART_ENUM_BOUND_AFTER(type, name, entry) static constexpr type name = type(entry + 1);
+ value_type operator[](difference_type d) const { return FromIndex<Enum>(_index + d); }
+ value_type operator*() const { return operator[](0); }
+
+ Iterator& operator+=(difference_type d) { _index += d; return *this; }
+ Iterator& operator++() { return operator+=(1); }
+ Iterator operator++(int) { Iterator i = *this; operator++(); return i; }
+ Iterator operator+(difference_type d) const { Iterator i = *this; i += d; return i; }
+
+ Iterator& operator-=(difference_type d) { _index -= d; return *this; }
+ Iterator& operator--() { return operator-=(1); }
+ Iterator operator--(int) { Iterator i = *this; operator--(); return i; }
+ Iterator operator-(difference_type d) const { Iterator i = *this; i -= d; return i; }
+
+ private:
+ difference_type _index;
+ };
+
+ template <typename Enum>
+ static Iterator<Enum> Begin() { return Iterator<Enum>(0); }
+
+ template <typename Enum>
+ static Iterator<Enum> End() { return Iterator<Enum>(); }
+
+ template <typename Enum>
+ static Trinity::IteratorPair<Iterator<Enum>> Iterate() { return { Begin<Enum>(), End<Enum>() }; }
+
+ template <typename Enum>
+ static char const* ToConstant(Enum value) { return ToString(value).Constant; }
+
+ template <typename Enum>
+ static char const* ToTitle(Enum value) { return ToString(value).Title; }
+
+ template <typename Enum>
+ static char const* ToDescription(Enum value) { return ToString(value).Description; }
+};
#endif