Re: [ANN] Lua 5.2.0 (beta-rc3) now available

["Stuart P. Bentley" <stuart@...>]

What if, say, a new string method gets added in the future and I want to  
write something like this:

  local newstrm = string.newmethod or special_fallback

It seems a bit silly to force that code to use rawget, just for the sake  
of a slightly different error for a specific kind of typo.

(Couldn't the special error metamethod just be added exclusively to the  
string type metatable and not the library metatable?)

On Mon, 27 Jun 2011 15:48:57 -0400, Roberto Ierusalimschy  
<roberto@inf.puc-rio.br> wrote:

> > > =string.abc
> > stdin:1: no field 'abc' in strings
> > stack traceback:
> >         [C]: in function '__index'
> >         stdin:1: in main chunk
> >         [C]: in ?
> >
> > Wouldn't it be better to return nil rather than raise an error?
>
> http://lua-users.org/lists/lua-l/2011-06/msg00629.html
> --> http://lua-users.org/lists/lua-l/2011-06/msg00718.html
>
> -- Roberto