I don't do it this way, so this might not be quite correct, but I'm fairly certain you should be able to create a ObjectTemplate and SetInternalFieldCount to 1. After that you could create a NewInstance and SetPointerInInternalField to point to an instance of your class. From there, you could add your function to the object, and when the callback is invoked, you should be able to get the Object from Arguments::This() and GetPointerFromInternalField.
On Wed, Feb 24, 2010 at 6:36 AM, Seiji Sam Lee <[email protected]>wrote: > Yes, it works!! But I need bind objects with c++ pointers, it seems more > natural the object has the c++ pointer and their methods/properties use it. > > I have tested with ObjectTemplate::New() but it don't accept a data > parameter. > > I have tested with SetInternalField but it only works with Global (after > context being created) not with objects into Global (you know, B, C, D in > my > original email). > > I need bind every object (not template) with a c++ pointer. There must be a > general (and simple) technique to do that. > > Thanks in advance. > > De: [email protected] [mailto:[email protected]] En nombre > de Abdulla Kamar > Enviado el: martes, 23 de febrero de 2010 1:01 > Para: [email protected] > Asunto: Re: [v8-users] Re: Function Templates: Calling non-static member > functions > > When you create a function with v8::FunctionTemplate::New(), you can > optionally pass a v8::Value along with it. This value can be a pointer to a > class that you can get when your callback is invoked by using > v8::Arguments::Data(). Hopefully that helps. > On Tue, Feb 23, 2010 at 6:08 AM, cretz <[email protected]> wrote: > I am sorry to revive an old thread, but I am running in to the same > issue. I am trying to make a JSR-223 compatible Java bridge to V8. I > also need dynamic function binding. I am unable to see the pastebin > since it has expired. Can someone repost? > > Also, I prefer to use pure V8 w/out the v8-juice project. Does anyone > know the best way to dynamically bind functions at runtime? I was > considering binding all functions to a single function and obtaining > some form of unique identification from the Arguments object. Any help > is appreciated. > > On Jan 8, 5:42 am, Stephan Beal <[email protected]> wrote: > > On Fri, Jan 8, 2010 at 4:02 AM, dominiek <[email protected]> wrote: > > > Is there any hack you can think of that allows me to do it anyway? > > > Providing callbacks to non-static member functions is essential for > > > writing scripting language extensions. > > > > A callback to a non-static member function always requires an instance of > > that class. Aside from that, binding a member function is very similar to > > binding a non-member function (with the additional step of decoding the > > native "this" object before calling the native member function). > > > > The v8-juice project provides support for binding any of the following > C++ > > constructs to v8: > > > > - free functions > > - member functions (if the class containing the member is also wrapped) > > - member variables, either via the Accessor interceptors or by binding > > functions to them, such that the functions are called in place of the > > get/set operations. > > - static variables, whether member or free. > > > > You might find it useful for your project. > > > > The main project page:http://code.google.com/p/v8-juice/ > > > > Some useful wiki pages: > > > > How the type conversions > work:http://code.google.com/p/v8-juice/wiki/ConvertingTypes > > (that part is central to the whole binding mechanism) > > > > Binding free > functions:http://code.google.com/p/v8-juice/wiki/BindingFunctions > > > > Binding classes (including member > funcs/variables):http://code.google.com/p/v8-juice/wiki/ClassWrap > > > > > P.S. My C++ is a bit rusty, but I've been digging > > > into this problem for quite some hours now. > > > > Given that: be aware that generic binding mechanisms require either code > > generators (i'm not aware of any for v8, unless one counts macros) or > rather > > intricate templates-based mechanisms. Thus you may want to brush up on > your > > C++ before undertaking any significant JS/C++ binding projects. Simple > (or > > "brute force") bindings can be done without too much C++ know-how, but > > generic solutions to the problem require a fairly good understanding of > C++ > > templates (or a hypothetical code generator). > > > > -- > > ----- stephan bealhttp://wanderinghorse.net/home/stephan/ > -- > v8-users mailing list > [email protected] > http://groups.google.com/group/v8-users > > > > -- > Thank you > Abdulla > -- > v8-users mailing list > [email protected] > http://groups.google.com/group/v8-users > > -- > v8-users mailing list > [email protected] > http://groups.google.com/group/v8-users > -- Thank you Abdulla -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users
