EnumConverter.hpp

#pragma once
#include <Core/CoreMacros.hpp>
 
#include <initializer_list>
 
#include <Core/Utils/BijectiveAssociation.hpp>
 
namespace Ra {
namespace Core {
namespace Utils {
 
template <typename EnumBaseType>
class EnumConverter
{
  public:
    explicit EnumConverter( std::initializer_list<std::pair<EnumBaseType, std::string>> pairs );
 
    std::string getEnumerator( EnumBaseType v ) const;
    EnumBaseType getEnumerator( const std::string& v ) const;
    std::vector<std::string> getEnumerators() const;
 
  private:
    Core::Utils::BijectiveAssociation<EnumBaseType, std::string> m_valueToString;
};
 
/* -------------------------------------------------------------------------------------------
 * Implementation of template functions
 * -----------------------------------------------------------------------------------------*/
 
template <typename EnumBaseType>
EnumConverter<EnumBaseType>::EnumConverter(
    std::initializer_list<std::pair<EnumBaseType, std::string>> pairs ) :
    m_valueToString { pairs } {}
 
template <typename EnumBaseType>
std::string EnumConverter<EnumBaseType>::getEnumerator( EnumBaseType v ) const {
    return m_valueToString( v );
}
 
template <typename EnumBaseType>
EnumBaseType EnumConverter<EnumBaseType>::getEnumerator( const std::string& v ) const {
    return m_valueToString.key( v );
}
 
template <typename EnumBaseType>
std::vector<std::string> EnumConverter<EnumBaseType>::getEnumerators() const {
    std::vector<std::string> keys;
    keys.reserve( m_valueToString.size() );
    for ( const auto& p : m_valueToString ) {
        keys.push_back( p.second );
    }
    return keys;
}
 
} // namespace Utils
} // namespace Core
} // namespace Ra