Several: 

use Data::Dumper;
$Data::Dumper::Deparse = 1;

my $sub;
{
    my $x = "foo";
    $sub = sub {
        my $filename = shift;
        return "/tmp/$x/" . $filename;
    };
}

print Dumper($sub);
__END__
$VAR1 = sub {
            my $filename = shift @_;
            return "/tmp/$x/" . $filename;
        };

[download]
use Data::Dump::Streamer;

my $sub;
{
    my $x = "foo";
    $sub = sub {
        my $filename = shift;
        return "/tmp/$x/" . $filename;
    };
}

print Dump($sub);
__END__
my ($x);
$x = 'foo';
$CODE1 = sub {
           my $filename = shift @_;
           return "/tmp/$x/" . $filename;
         };

[download]
use B::Deparse;

my $deparse = B::Deparse->new;

my $sub;
{
    my $x = "foo";
    $sub = sub {
        my $filename = shift;
        return "/tmp/$x/" . $filename;
    };
}

print $deparse->coderef2text($sub),"\n";
__END__
{
    my $filename = shift @_;
    return "/tmp/$x/" . $filename;
}

[download]

update: added a block scope, from which you can see that out of those only Data::Dump::Streamer provides the sub's context.

In reply to Re: Is it possible to view a string representaion of a code ref? by shmem
in thread Is it possible to view a string representaion of a code ref? by astroboy

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