I have two classes, each has a constructor named new. I want to subclass the classes to make a new class. I need to call both parent constructors. However, how do I call the second constructor without clobbering by the data instance variables from first one? I can't seem to find this anywhere in the perldocs or in the Manning book.
Thanks,
Bizzach
package PClass1;
use strict;
use Carp;
sub new {
my $proto = shift;
my $class = ref($proto) || $proto;
my (%args) = @_;
my $this = {
_fs => $args{fs} || croak("You must supply a filesystem"),
};
bless $this, $class;
return $this;
}
...
package PClass2;
use strict;
sub new {
my $proto = shift;
my $class = ref($proto) || $proto;
my (%args) = @_;
my $this = {
_hosts => $args{hosts},
};
bless $this, $class;
return $this;
}
......
package Subclass;
use strict;
use PClass1;
use PClass2;
our @ISA=qw(PClass1 PClass2);
sub new {
my ($class, %args) = @_;
my $this = {};
bless $this, $class;
$this = $class->PClass1::new(%args);
#HOW DO I CALL THE SECOND CONSTRUCTOR HERE?????
$this->init($this);
return $this;
}
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|