But it's not reference counted and copyable. I want the last reference to dispose the handle.
Sent from my iPad On Aug 22, 2013, at 20:33, Isaac Burns <[email protected]> wrote: > I have used the following wrapper template to manage assigning new values to > a persistent handle. > > The constructors are only for clarity. The real work is done in the > destructor and assignment operator. > > It seems to work, but I welcome any corrections or feedback. > > template <class T> class SafePersistent : public v8::Persistent<T> > { > public: > SafePersistent<T>() : v8::Persistent<T>() {} > SafePersistent<T>(v8::Handle<T> handle) : v8::Persistent<T>(handle) {} > ~SafePersistent<T>() { CheckDispose(); } > v8::Persistent<T>& operator=(const v8::Persistent<T>& other) > { > CheckDispose(); > return v8::Persistent<T>::operator=(other); > } > protected: > void CheckDispose() > { > if (!v8::Persistent<T>::IsEmpty()) > { > v8::Persistent<T>::Dispose(); > v8::Persistent<T>::Clear(); > } > } > }; > > On Thursday, August 22, 2013 5:12:31 PM UTC-5, Jim Acquavella wrote: >> >> Why can't the Persistent use a RIAA pattern that's reference counted? >> Ideally, I'd like to create a persistent, copy it to another persistent >> (which would increment the reference), then the last one to go out of scope >> should be disposed automatically in the destructor. In other words, I'd >> like to use it like a boost::shared_ptr. >> >> http://en.wikipedia.org/wiki/Resource_Acquisition_Is_Initialization >> >> This would tremendously simplify my code and ownership of these persistents. >> >> Thoughts? > > -- > -- > v8-users mailing list > [email protected] > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to a topic in the Google > Groups "v8-users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/v8-users/6kSAbnUb-rQ/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. -- -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
