object-factory.h

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// -*- mode: C++; c-file-style: "virtutech-c++" -*-
 
/*
  © 2021 Intel Corporation
 
  This software and the related documents are Intel copyrighted materials, and
  your use of them is governed by the express license under which they were
  provided to you ("License"). Unless the License provides otherwise, you may
  not use, modify, copy, publish, distribute, disclose or transmit this software
  or the related documents without Intel's prior written permission.
 
  This software and the related documents are provided as is, with no express or
  implied warranties, other than those that are expressly stated in the License.
*/
 
#ifndef SIMICS_OBJECT_FACTORY_H
#define SIMICS_OBJECT_FACTORY_H
 
#include "iface/object-factory-interface.h"
 
#include <type_traits>  // is_base_of
 
namespace simics {
 
template <typename T>
class ObjectFactory : public iface::ObjectFactoryInterface {
  public:
    ObjectFactory() {
        static_assert(std::is_base_of<ConfObject, T>::value,
                      "T must be a descendant of ConfObject");
    }
 
    ConfObject *create(conf_object_t *obj) const override {
        return new T(obj);
    }
    iface::ObjectFactoryInterface *clone() const override {
        return new ObjectFactory<T>();
    }
};
 
template <typename T, typename A>
class ObjectFactoryWithArg : public iface::ObjectFactoryInterface {
  public:
    explicit ObjectFactoryWithArg(A *arg)
        : arg_(arg) {
        static_assert(std::is_base_of<ConfObject, T>::value,
                      "T must be a descendant of ConfObject");
    }
 
    ConfObject *create(conf_object_t *obj) const override {
        return new T(obj, arg_);
    }
    iface::ObjectFactoryInterface *clone() const override {
        return new ObjectFactoryWithArg(arg_);
    }
 
  private:
    A *arg_;
};
 
}  // namespace simics
 
 
#endif