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- Subject: Re: how to store a ref to a table without registry?
- From: joerg piringer <joerg@...>
- Date: Thu, 20 Mar 2008 12:46:55 +0100
didn't think of that, thank you.
but maybe instead of storing a list of c++ object with references to lua
tables i should have a table of tables in lua...
Chris Swetenham schrieb:
If I understand correctly, you want to be able to store a reference to
the object from the C++ side without preventing it from being garbage
collected? If this is the case, then you can create a table in the
registry that has weak values, and store a reference in that table. See
section 2.10.2 of the reference manual:
Hope that helps!
----- Original Message ----- From: "joerg piringer" <email@example.com>
To: "Lua list" <firstname.lastname@example.org>
Sent: Thursday, March 20, 2008 11:17 AM
Subject: how to store a ref to a table without registry?
i am pretty new to lua so please forgive me if this question has been
i'd like to access a function (or rather a method) inside a specific
table from c++. how can i do that without storing the reference to the
table in the registry?
the problem is when i store the reference in the registry it won't get
garbage collected, right?
i have the following code:
o = TestObject()
o.testFunc = function() print "test" end
TestObject() is a c++ function that returns a table with a userdata
inside (the actual c++ object).
now i'd like to call my testFunc from the c++ object that's inside the
i did it with a reference (in the registry) to self (the table) until
i tried to garbage collect the objects...