scope_guard.h

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#pragma once

#include <functional>

namespace tc {

//
// Poor man's ScopeGuard
//
class ScopeGuard {
  std::function<void()> onExit;
  ScopeGuard() = delete;
  ScopeGuard(ScopeGuard&) = delete;
  ScopeGuard(ScopeGuard&&) = delete;
  ScopeGuard operator=(ScopeGuard&) = delete;
  ScopeGuard operator=(ScopeGuard&&) = delete;

 public:
  template <class F>
  ScopeGuard(const F& f) : onExit(f) {}
  ~ScopeGuard() noexcept(false) {
    onExit();
  }
};

} // namespace tc