[ I had this written before an internet outage. I might as well still post it even though something similar was already posted. ]
First, the solution is to set Purity
#!/usr/bin/perl
use strict;
use Data::Dumper;
my $var1 = { temp => "123" };
my $hash_ref;
push @{$hash_ref->{test1}}, $var1;
push @{$hash_ref->{test2}}, $var1;
print Dumper($hash_ref);
my $dump = do {
local $Data::Dumper::Purity = 1;
Dumper($hash_ref);
};
my $VAR1;
eval "$dump; 1" or die $@;
print Dumper($VAR1);
$VAR1 = {
'test1' => [
{
'temp' => '123'
}
],
'test2' => [
$VAR1->{'test1'}[0]
]
};
$VAR1 = {
'test1' => [
{
'temp' => '123'
}
],
'test2' => [
$VAR1->{'test1'}[0]
]
};
But really, Data::Dumper is not the right tool. Storable can best represent Perl data structures. If you want something human-readable, both JSON and YAML cover all the basics.