utl_fncwrapper.h

/*
 * Developer : Alexey Zakharov (alexey.zakharov@vectioneer.com)
 * All rights reserved. Copyright (c) 2020 VECTIONEER.
 */
 
#ifndef MOTORCORTEX_CORE_UTL_FNCWRAPPER_H
#define MOTORCORTEX_CORE_UTL_FNCWRAPPER_H
 
#include <memory>
 
class FunctionWrapper {
  struct ImplBase {
    virtual void call() = 0;
 
    virtual ~ImplBase() {}
  };
 
  std::unique_ptr<ImplBase> impl;
 
  template <typename F>
  struct ImplType : ImplBase {
    F f;
 
    ImplType(F&& f_) : f(std::move(f_)) {}
 
    void call() { f(); }
  };
 
public:
  template <typename F>
  FunctionWrapper(F&& f) : impl(new ImplType<F>(std::move(f))) {}
 
  void operator()() { impl->call(); }
 
  FunctionWrapper() = default;
 
  FunctionWrapper(FunctionWrapper&& other) : impl(std::move(other.impl)) {}
 
  FunctionWrapper& operator=(FunctionWrapper&& other) {
    impl = std::move(other.impl);
    return *this;
  }
 
  FunctionWrapper(const FunctionWrapper&) = delete;
 
  FunctionWrapper(FunctionWrapper&) = delete;
 
  FunctionWrapper& operator=(const FunctionWrapper&) = delete;
};
 
#endif // MOTORCORTEX_CORE_UTL_FNCWRAPPER_H