From: Robert Klemme <shortcutter@...>
Date: 2007-10-04T23:19:56+09:00
Subject: Re: File scope variable

2007/10/4, Martin Martinos <mchabotsol@hotmail.com>:
> Robert Klemme wrote:
> > 2007/10/3, Martin Martinos <chabotm@yahoo.com>:
> >>
> >> example:
> >>
> >> require 'pathname'
> >> my_path = Pathname.new(__FILE__).realpath.dirname
> >>
> >> require my_path +'mylib'
> >>
> >> def exec_my_bin()
> >>   `#{my_path + 'bin/mybin'}`
> >> end
> >
> > What is wrong with this solution?  my_path *is* visible in the current
> > file only as far as I can see.  Btw, what are you trying to achieve?
> >
> > Kind regards
> >
> > robert
>
> In fact, it only visible in the current file but it's not visible in the
> exec_my_bin() function and I don't want to write:

Right you are.  I overlooked that one.  You could work around that
using a lambda:

$ ruby <<XXX
> foo = 100
> bar = lambda { puts foo }
> bar[]
> XXX
100

> def exec_my_bin()
> `#{Pathname.new(__FILE__).realpath.dirname + 'bin/mybin'}`
> end
>
> Also I don't want to use a global variable, which I think is a bad idea
> since I don't want to use it in another file.

Reasonable.  But still, what do you need that for?

Kind regards

robert