All,

I have a matcher that looks through a number of objects and returns the first that matches certain criteria or - if none are found - it returns undef.

Now all I need to know is if the resulting variable is defined or not. As I expect the object to be defined, I croak if no object was found.

So far the theory. Here is the code: 

my $ls = Obj::LocationSource->new();
my $dep_tip = $ls->match( { location => $dep_name } );
print Dumper( $dep_tip );
if ( ! defined $dep_tip ){
  croak ( "DATA ERROR: Could not find any location for '$dep_name'" );
}

OUTPUT:
$VAR1 = bless( {
                 '_location' => 'Salisbury',
                 '_id' => 259,
                 '_key' => 'SLSBRY'
               }, 'Object::Location' );
DATA ERROR: Could not find any Location for 'Salisbury' at ***.pl line
+ 45

[download]

I do not understand why ! defined $dep_tip seems to evaluate to true.


Cheers,
PerlingTheUK

Considered by PerlingTheUK: Please delte as I found the error in a later line in the code.
Unconsidered by planetscape: keep (and edit) votes prevented reaping

In reply to Definedness of an Object by PerlingTheUK

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