Re: Fwd: How to forward declare globals

[Charles Smith <cts.private.yahoo@...>]

Recursive design.


msg_union = {

  ["0"] = "alt1",

  ["1"] = "alt2",
  ...
}

function alt1 (body)
...

function alt2 (body)


ielen = _G[msg_union[tostring (selector)]] (buffer(offset), pinfo, tree)

Maybe there's a better way?  It looks like it's going to be slow.

The msg_union has to be defined before it can be used by the (sub)msgs.  But it needs access to the (sub)msgs.

On Mon, Oct 6, 2014 at 2:17 PM, Rob Kendrick <rjek@rjek.com> wrote:

On Mon, Oct 06, 2014 at 02:15:36PM +0200, Charles Smith wrote:
> Okay, I got it to work:
>
> v = "m1"
>
> function m1 ()
>     print ("hello world")
> end
>
> _G[v]()

I'm trying, and failing, to see a situation where this is the most
elegant solution.

Can't you just define the function first?  Calling functions by name
rather than value is fraught with horror.

B.