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On 18/04/15 01:50 PM, Tim Hill wrote:
[1] From all the posts you make here, I get the impression you would do far better programming in Lisp than in Lua (or any other non-Lisp language). Every crazy thing you want to do is possible in Lisp. But that's just my impression. [2] What are you trying to do anyway? Create some form of virtual Lua environment?I'm trying to make a Forth VM, using varargs as the stack.[3] I don't use it often. I just checked my own codebase at work, and out of 18,204 lines of Lua, only 17 uses of varargs, and only 4 of those do not deal with logging of some sort (calling either print(...) or f:write(...) or some variation on that).You should realize that the caller of a vararg function has no idea that the target function is vararg; it just pushes its arguments onto the Lua stack normally. Thus the resulting data structure is just a continuous block of Lua stack slots which, as Dirk noted, can be accessed in an array-like manner (since the Lua stack is indexable). I would doubt that using varargs as a Forth stack is the best approach. What’s wrong with a Lua array (aka table)?
Lua arrays can't do nil, Lua stacks can.
—Tim
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