enum.hpp

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#ifndef NEFORCE_CORE_REFLECT_ENUM_HPP__
#define NEFORCE_CORE_REFLECT_ENUM_HPP__

 
#include "NeForce/core/container/vector.hpp"
#include "NeForce/core/reflect/any.hpp"
NEFORCE_BEGIN_NAMESPACE__
NEFORCE_BEGIN_REFLECT__


struct enum_entry {
    string_view name; 
    int64_t value;    
};

class meta_enum {
private:
    string_view name_;           
    type_id underlying_type_id_; 
    vector<enum_entry> entries_; 
 
public:
    meta_enum(string_view name, type_id underlying_id) :
    name_(name),
    underlying_type_id_(underlying_id) {}

    void add_entry(string_view entry_name, const int64_t entry_value) { entries_.push_back({entry_name, entry_value}); }

    NEFORCE_NODISCARD string_view name() const noexcept { return name_; }

    NEFORCE_NODISCARD type_id underlying_type_id() const noexcept { return underlying_type_id_; }

    NEFORCE_NODISCARD const vector<enum_entry>& entries() const noexcept { return entries_; }

    NEFORCE_NODISCARD bool value_of(string_view entry_name, int64_t& out_value) const noexcept {
        for (const auto& entry: entries_) {
            if (entry.name == entry_name) {
                out_value = entry.value;
                return true;
            }
        }
        return false;
    }

    NEFORCE_NODISCARD string_view name_of(const int64_t entry_value) const noexcept {
        for (const auto& entry: entries_) {
            if (entry.value == entry_value) {
                return entry.name;
            }
        }
        return {};
    }
};
 // Reflection
 
NEFORCE_END_REFLECT__
NEFORCE_END_NAMESPACE__
#endif // NEFORCE_CORE_REFLECT_ENUM_HPP__