Tobias Ivarsson a écrit : > > > On Tue, Feb 17, 2009 at 11:20 AM, Rémi Forax <fo...@univ-mlv.fr > <mailto:fo...@univ-mlv.fr>> wrote: > > > > Create a MOP is you have MethodHandles is more easier than without :) > But how to handle the case where you want to call a ruby method with > a PHP object. > > > This is what Interface Injection aims to solve. > After my FOSDEM presentation, http://wiki.debian.org/Java/DevJam/2009/Fosdem?action=AttachFile&do=get&target=Remi-JSR292.pdf
Someone (sorry I am not able to recall who) ask me how to recognize if an object is a PHP one or a Ruby one, I have answered that interface injection should solve that. I'm glad that my answer was not a complete mistake. > When the JRuby runtime recevies an object from PHP it casts it to > IRubyObject (the main JRuby type) which is an injectable interface. If > the class of the object does not already implement IRubyObject the > injector for the interface is invoked. The injector is a regular java > object that has a method for providing MethodHandles that make up the > implementation methods for the interface. As in the case with the > bootstrap method in invokedynamic this method can do whatever the > language implementor chooses to get or define these MethodHandles. My > recommendation in this case is for the injector to get the meta object > from the PHP object and use that to lookup the MethodHandles for each > capability that JRuby uses, and use default implementations where the > meta object does not support the capability. And the idea of the MOP is that the meta object should have the same interface for all dynamic languages. > > I intend to contribute work on this to the dynalang project when the > work on interface injection is done, and the rest of my work queue is > empty enough. Hopefully in April, after PyCon. > > Cheers, > Tobias Cheers, Rémi _______________________________________________ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
