[Date Prev][Date Next][Thread Prev][Thread Next]
- Subject: Lua C Functions in C++ class
- From: Tim Conkling <tconkling@...>
- Date: Tue, 21 Oct 2003 14:03:44 -0400
I have a C++ class that exports some functions to a Lua environment.
These functions are, of course, static, but they need to access member
functions/variables of the class. The only way to do this (that I can
think of) is to make those class members static as well, because
there's no way to associate any sort of user data with the exported
functions -- they only receive the lua_State* parameter, so I can't
tell them which class they belong to when they're called. This wouldn't
be such a problem, except that it's possible I might want multiple
instances of this class at once, and clearly if they're both
manipulating the same static members, there'll be problems, since these
members really shouldn't be static.
I can't think of a great way to solve this problem that doesn't involve
jumping through hoops every time a function of the class gets called.
Is there a design pattern I'm missing here? What do other people do in