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- Subject: Re: Lua life after integers
- From: Rena <hyperhacker@...>
- Date: Wed, 10 Dec 2014 09:44:43 -0500
On Mon, Dec 8, 2014 at 5:20 PM, Luiz Henrique de Figueiredo
>> If I'm understanding the manual correctly, lua_tolstring() doesn't
>> honour __tostring. Similarly lua_tonumberx() doesn't call __tonumber
>> (if such a metamethod even exists?). The manual also doesn't appear to
>> specify whether lua_call() will look at __call.
> All core metamethods are honored in the Lua API, except for those
> functions that are named *raw*. Both the API functions and the VM
> instructions ultimately use the same code. The core metamethods
> are listed in http://www.lua.org/work/doc/manual.html#2.4 .
> __tostring is not a core metamethod, nor are __pairs and __ipairs.
> So, lua_tolstring does not honor __tostring. luaL_tolstring does.
Interesting. Why is __tostring not a core metamethod? The distinction
seems arbitrary to me.
As an aside, I notice the changes section in the 5.3 manual doesn't
list functions that were newly added, such as lua_geti. I think
listing new functions would be very helpful to keep people like me
from requesting things without noticing they were already added. :-)
Sent from my Game Boy.