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On Wed, Jul 22, 2009 at 9:29 PM, Cosmin
Apreutesei<> wrote:
> Hi,
> Just found out that the __index metamethod is called for x=a[nil], but
> __newindex is not called for a[nil]=x -- instead the operation is
> specifically forbidden. I'd rather have it called too and not throw an
> error. What am I missing?

nil is not a valid table key.  That's all!

- Jim