Re: assign to magic name-of-function variable instead of "return"

[David L. Nicol]

[EMAIL PROTECTED] wrote:

> Does that mean there's going to be a @__ as well, for uses in list context?
> If so, what happens with:
> 
>     sub some_sub {
>         @__ = qw /foo bar baz/;
>     }
> 
>     my $fnord = some_sub;
> 
> If there isn't going to be a @__ of some sorts, how is the case of the sub
> being called in list context going to be handled?
> 
> Abigail

If $__ is a reference to our lvalue, if any, instead of an alias, since
references are all scalar, we can take C<ref($__)> to get a finely
grained C<want> function.

And when the sub is called in list context, @$__ will be the list.
This allows intrusive functionality to fiddle with lvalue parts:

        sub DirectBubbleSort(){
                my ($i,$t) = (-1,0);
                while (++$i <= $#$__){
                        $$__[$i] > $$__[1+$i] and $t++ and @$__[$i,1+$i] = 
@$__[1+$i,$i];
                };
                $t and @$__ = DirectBubbleSort; 
        }

        @SomeList = DirectBubbleSort; # instead of DirectBubbleSort(\@SomeList)



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                      David Nicol 816.235.1187 [EMAIL PROTECTED]
                      www.tmcm.com, dammit