On Mon, Mar 10, 2008 at 1:01 AM, Tony Balinski <[EMAIL PROTECTED]> wrote:
> Quoting Thorsten Haude <[EMAIL PROTECTED]>:
>
> > Hi,
> >
> > * Bert Wesarg wrote (2008-02-07 20:52):
> > >On Feb 7, 2008 8:32 PM, Bert Wesarg <[EMAIL PROTECTED]> wrote:
> > >> can someone please explain why this is necessary?
> > >OK, I think this has to do with some sort of forward declaration. If a
> > >function is used before it was defined, the symbol is promoted to
> > >global. Right?
> >
> > Anyone? If the question came up it must mean that documentation is
> > missing, so it would be nice if we could add it.
>
> My understanding is to allow left-to-right scanning of expressions in the
> parser.
>
> In
> a = fn(b)
> when fn is encountered, it's treated as a local. When ( is seen, fn is
> promoted to global, since all functions are global.
It is only treated as a local, if the 'define fn {' comes after this
statement. If it comes first, fn is already in the globalsymlist => no
need to promote.
Bert
>
> At least, that's my understanding until I check parse.y!
I would appreciate it.
>
> Tony
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