Re: LuaJIT 2 clone-on-write for tables

[Tony Finch <dot@...>]

On Wed, 19 Jan 2011, Alexander Gladysh wrote:
>
> Another silly question, while we're on it: is it possible, in theory,
> to create some magical "jit.tclone()" builtin, that would make such
> clone-on-write optimization possible?

You can do that with a proxy table. Point __index at the table to be
cloned, and when __newindex is called, copy everything to the proxy.

Tony.
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