Programmers expect a dump to reflect the underlying code structure and the dump they get would be just a convenient fiction.

You can’t help that, can you? Going around diddling innards according to a Data::Dumper reading is a bad idea anyway; I don’t think you should feel obligated to support this notion. What you want to do is support Data::Dumper-based serialisation; that’s another matter altogether.

Registering the Freezer/Toaster requires loading Data::Dumper – so regardless of whether a dump is ever called, just supporting Data::Dumper requires the overhead of loading it.

How so? You can always assign a value to $Data::Dumper::Freezer, whether the module is loaded or not.

sub f { warn };
$Data::Dumper::Freezer = 'f';
require Data::Dumper;
Data::Dumper::Dumper( bless \$_, 'main' );
__END__
Warning: something's wrong at - line 1.

[download]

The real problem I see is that multiple modules may want to use this hook, and they will probably all have a different idea of what the right value for $Data::Dumper::Freezer is.

You could try to be a little more cooperative by using something like this:

$Data::Dumper::Freezer = "DD_freezer" unless defined $Data::Dumper::Fr
+eezer;

*{; do { no strict 'refs'; \*{$Data::Dumper::Freezer} } } = sub {
    # serialisation code here
};

[download]

But that gives you no guarantee that everyone else will attempt to be similarly cooperative. :-/

Makeshifts last the longest.

In reply to Re^3: Hooks like Storable for Dumper? by Aristotle
in thread Hooks like Storable for Dumper? by xdg

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