I've got a horribly complex nested data structure, which isn't working...

Early on in my object I create an array of passed-in objects by pushing them onto the array like this:

(Each element in the array is an array of two elements.)

sub add_log {
    my ($self, $parser, $coderef) = @_;
    
    push @{$log_list{refaddr $self}}, [ $parser, $coderef ];

    return 1;
}

[download]

A little later on I'm trying to use a method in that object like this:

sub find_message {
    my ($self, $argref) = @_;

    # Parse the arguments, and get all the message info.
    my $msg_info = $self->_parse_args($argref, 1);    # The '1' means 
+throw an error if we don't have any info.

    # Find the message in the first log.
    if ($log_list{refaddr $self}->[0][0]->find_message_info($msg_info)
+) {
       # Do something.
       return 1;
    }
    else {
       return 0;
    }
}

[download]

Finally, I've got the following test script:

   my $tracer = Mail::Log::Trace::Postfix->new({log_file => 't/data/lo
+g'});
   my $object = Mail::Log::Trace::Multiple->new();
   $object->add_log( $tracer, sub {} );

   my $condition = {to_address => '<0001@example.com>', from_start => 
+1};
   ok($object->find_message($condition) , 'Mail::Log::Trace::Multiple:
+ Find message from "to" field.');

   ok($tracer->find_message_info($condition), 'tracer test.');

[download]

Which fails the first test but not the second. So I know the method works. (And it wouldn't compile at all if I wasn't calling it correctly: I've tested that by changing the spelling.)

So I am absolutely sure the problem is that the line $log_list{refaddr $self}->[0][0]->find_message_info($msg_info) is mis-behaving. How it's mis-behaving I'm not so sure about. (As far as I can tell, it's operating as a no-op.)

Anyone have any ideas on how to get that line to correctly function? Or what I'm doing wrong?

- DStaal

In reply to Calling a subroutine via multiple dereferences. by Anonymous Monk

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