Re: getting function name

[jseb <gmane2013@...>]

>   Take a look at package.loaded.  Not only does it contain a
> reference to package, but it also contains a reference to _G.

Ah yes, just saw that.

And there were problem also in the searching loop: when found, the
search continues and it ends with returning nil. Each returning
call should test if there were some success previously.

Correct version:

function _get_fx_name(fx, t)
  local ret = nil
  for k,v in pairs(t) do
    if fx == v then
      print("found", k,v)
      return k
    end
    if type(v) == "table" and k ~= "_G"  and k ~= "package" then
      ret = _get_fx_name(fx, v)
      if ret then goto exit end
    end
  end
::exit::
  return ret
end

function get_fx_name(fx)
  local name
  name = _get_fx_name(fx, _ENV)
  name = name or "unknown function"
  return name
end


I know it's pretty not pretty, but that's the most i can do.