I think I know the answer, but I haven't found confirmation...

I have a closure with 3 subs in it, something like this: 

use strict;
use warnings;
{ # closure
  my %foo;

  sub collect_it
  { my ($key, $value) = @_;
    $foo{$key} = $value;
  }

  sub print_it
  { for my $key ( keys %foo )
    { print "\$foo{$key} = $foo{$key}\n";
    }
    clear_it();
  }

  sub clear_it
  { %foo = (); }
} # end closure

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The script compiles and runs with no warnings or errors, and appears to "do the right thing".

However, some of my users want a PAR executable. When making the PAR executable (pp -z 9 -c script.pl), I get errors for all of the enclosed lexicals: 

Variable "%foo" will not stay shared at 60oehl line 123.

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...where line "123" is a line in "script.pl" that references %foo.

From my reading I see that this error comes up in Perl when using nested named subs, which isn't the case here.

The only thing I can think of is that PAR is somehow wrapping my whole script, which then triggers the sharing warning message under "-c".

I've tried to reproduce this with a smaller script, but had no luck yet. (The original script is 1000+ lines.) I'm also wondering if the "\$foo{$key}" confuses the compiler into thinking that's a reference?

Any hints?

-QM
--
Quantum Mechanics: The dreams stuff is made of

In reply to PAR: Variable %x will not stay shared by QM

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