Hi, I'm having trouble using
SUPER to call an ancestor's constructor.
Say i've got an abstract class, Word, and a subclass, Noun, which derives from it, and calls it's parent's constructor, but then takes a few extra parameters.
The only way I can get it to work is to
create and
bless my
$self and
then call
SUPER:
#!/usr/bin/perl -w
use strict;
package Word;
sub new
{ my $classname = shift;
my $self = {};
$self->{stem} = shift;
$self->{english} = shift;
bless $self, $classname;
return $self;
}
package Noun;
our @ISA = "Word";
sub new
{ my $classname = shift;
my $self = {};
bless $self, $classname;
$self = $self->SUPER::new(shift, shift);
$self->{gender} = shift;
$self->{nom_sg} = shift;
$self->{gen_sg} = shift;
return $self;
}
package main;
my $w = new Noun("ai(=m-", "blood", "n", "a", "atos");
print $w->{english};
This seems very clunky & makes me think it's hardly worth setting up the inheritance. But I know that in Java you can do it in one line, so I bet you can in Perl too?
Can anyone suggest an optimised version of the above?
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.