Re: Lua 5.1 has a serious issue

[Rici Lake <lua@...>]

On 12-Jan-06, at 12:06 PM, Roberto Ierusalimschy wrote:

> As a general rule, Lua does not allow the redefinition of operators for
> cases already defined in the language (e.g., add for numbers, concat 
> for
> strings, call for functions).

On the other hand, table get and set is redefinable (partially).

> (On the other hand, we do understand that tables may have a different
> status, as they are used to represent "all other types" in Lua.)

I think that's the essential point. #table is only useful for a subset 
of tables (i.e. non-sparse arrays); there are many cases where you 
might want to redefine it; for example, a pure proxy table (commonly 
used to allow complete redefinition of get and set).