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- Subject: lua user data objects and interfacing c++
- From: "Robert Sadedin" <trinitychaos50@...>
- Date: Tue, 28 Sep 2004 14:51:02 +1000
I am storing a c++ object in a lua user data, and binding a meta table to it
for lookup on method calls.
The user data stores the pointer for the c++ object instance, and some other
information such as whether lua will handle the freeing of the object or
not, and the meta table, of course.
What I would like to do is allow a user to add lua variables to these c++
objects wrapped by a user data and accessed through the meta table.
Currently a user can call, for instance:
obj = createSomeObject()
I'd like the user to be able to say:
obj.x = 6
I'm not sure if this can be achieved, though, since obj is simply a user
data, and a lookup in the meta table will reveal nothing regarding x.
I could, on an unfound interface, modify the metatable, I guess ... I'm not
really sure though, and was wondering what others though of as a good
solution, if they have one.
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