Re: [PATCH] make light userdata a little bit heavier

[Coroutines <coroutines@...>]

On Tue, Apr 22, 2014 at 12:09 AM, Philipp Janda <siffiejoe@gmx.net> wrote:

>> What I gain is the ability to verify the type safety of light userdata
>> usage on the C side

Ahah!  I get what's going on ITT now. :-)

Maintain a vector of addresses that are copies of the lightuserdata
for the particular type you're checking for.  Keep it sorted for
binary-searching it later.  Not as light as what you're suggesting,
but it wouldn't require modifying Lua if this proposal doesn't get
accepted :>