Hi all, i am wondering if there is any way to get Data::Dumper to maintain tie() information on something that was dumped? Here is some sample code and output, demonsrating that when eval'ing a dumped string, the tie is gone.

use strict;
use warnings;

use Data::Dumper;
use Tie::IxHash;

{
    tie (my %x, 'Tie::IxHash');

    %x = (
        'A' =>  1,
        'B' =>  2,
        'C' =>  3,
    );

    print join "", map { "$_ = $x{$_}\n" } keys %x;
    print "\n";

    my $dumped;
    {
        local $Data::Dumper::Terse = 1;
        $dumped = Dumper(\%x);
    }
    print "Dumper: $dumped\n\n";

    my $y = eval $dumped;
    print join "", map { "$_ = $y->{$_}\n" } keys %$y;
}

[download]
And here is the output: 
A = 1
B = 2
C = 3

Dumper: {
          'A' => '1',
          'B' => '2',
          'C' => '3'
        }


A = 1
C = 3
B = 2
Its obvious that the problem is in the Dumper(), not the eval, because the value of $dumped does not contain any tie information, as a dumped object instance would have.

Any easy workarounds available?

In reply to Tie and Data::Dumper by shemp

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