Feature.h

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#ifndef LINTEL_FEATURE_H
#define LINTEL_FEATURE_H
 
#include <memory>
#include <string>
#include <string_view>
#include <type_traits>
#include <utility>
 
#include "lintel/core/Features.h"
#include "lintel/core/utils/TypeName.h"
 
namespace lintel {
class Configuration;
class ProcessName;
 
// The DI container is only referenced through pointers/references in the
// signatures below, so an incomplete type is enough. Implementations that
// register or resolve types include "lintel/core/di/Container.h" themselves.
}// namespace lintel
namespace lintel {
namespace di {
  class Container;
  class ContainerBuilder;
}// namespace di
}// namespace lintel
 
namespace lintel {
class FeatureInterface
{
public:
  virtual ~FeatureInterface() = default;
 
  virtual void registerTypes(lintel::di::ContainerBuilder &builder) = 0;
 
  virtual void registerTypes(lintel::di::ContainerBuilder &builder,
    const std::shared_ptr<Configuration> &configuration,
    const std::shared_ptr<ProcessName> &processName)
  {
    (void)configuration;
    (void)processName;
    registerTypes(builder);
  }
 
  virtual void initialize(std::shared_ptr<lintel::di::Container> container) = 0;
 
  virtual std::string_view getName() = 0;
};
 
template<typename T, std::enable_if_t<std::is_enum_v<T>> * = nullptr> class Feature : public FeatureInterface
{
private:
  std::shared_ptr<Features> m_features;
 
protected:
  std::string_view m_name;
 
public:
  Feature(T type, std::shared_ptr<Features> features)
    : m_name(std::string(magic_enum::enum_name(type))), m_features(std::move(features))
  {
    m_features->registerFeature(
      type,
      [&](lintel::di::ContainerBuilder &builder) { registerTypes(builder); },
      [&](std::shared_ptr<lintel::di::Container> container) { initialize(container); });
  }
 
  virtual ~Feature() = default;
 
  virtual void registerTypes(lintel::di::ContainerBuilder &builder) = 0;
 
  virtual void initialize(std::shared_ptr<lintel::di::Container> container) = 0;
 
  std::string_view getName() { return m_name; }
};
 
}// namespace lintel
#endif// LINTEL_FEATURE_H