Re: Lua 5.2 custom array demo

[Mark Hamburg <mark@...>]

On Jan 9, 2010, at 8:27 AM, David Manura wrote:

> The "end)" syntax was always a little odd, but there are ways it could
> be avoided:
> 
> local array = class ::
>    function __len(t) return #t.store end
>    function __newindex(t,i,val) rawset(t.store,i,val) end
>    function __index(t,i) return rawget(t.store,i) end
>    function __ipairs(t) return ipairs(t.store) end
>    function __init() return setmetatable({store={}},array) end
>  end
> 
> where "::" is basically like a "function()" but allows omitting
> parenthesis in the call.

My first reaction is that I really like that syntax. Of course, what it then wants is not "in t do end" but rather call_with_environment.

Mark