Trying to get a handle on closures and ran into an obstacle. It's probably pretty simple to get around, but I haven't figured it out: 
#!/usr/bin/perl -w
use strict;

doStuff();

sub doStuff {
    my $toggle = initToggle( 1 );
    for ( 1..6 ) { print &$toggle . "\n" };
}

sub initToggle {
    my $x = shift;
    return sub { $x ^= 1; return $x };
}

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The above snippet happily prints 0,1,0,1,0,1 on successive lines. However, every time I try to pass $toggle to a subroutine from doStuff(), it gets turned to a scalar. How do I get it to pass itself as a code reference? I'm using this to encapsulate some functionality in a module and I don't want to declare $toggle globally.

Further, I'm not looking for a better way to toggle values. This is just something I'm doing to understand closures better.

Cheers,
Ovid

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In reply to Closures question by Ovid

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