Re: calling collectgarbage in __gc metamethod
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- Subject: Re: calling collectgarbage in __gc metamethod
- From: Roberto Ierusalimschy <roberto@...>
- Date: Mon, 6 Aug 2012 16:57:16 -0300
> I've just met this interesting behavior while writing my Box2d
> wrapper. I don't know if it's a bug or not but Lua 5.1.4 avoids GC
> steps while running a __gc metamethod.
The next example calls collectgarbage inside a __gc metamethod without
any problems (at least in my machine):
-------------------------------
u = newproxy(true)
getmetatable(u).__gc = function (o)
print("start gc", o)
collectgarbage()
print("end gc", o)
end
for i = 1, 10 do
u = newproxy(u)
print("creating", u)
end
collectgarbage()
-------------------------------
So, either you hit a more strange bug in Lua or the crashing is in
your code.
-- Roberto