Hi Marc,
On Sat, 19 May 2012 20:09:00 -0700
sono...@fannullone.us wrote:
> I'm trying the following code from Programming Perl, but I'm get the
> error "Can't call method "type" on unblessed reference at untitled text 10
> line 23". I've checked the errata page, but there's nothing listed for it.
> Searching on the error message brings up pages about unblessed references,
> but I can't make heads or tails out of them. Does anyone know what the
> problem is?
>
> Thanks,
> Marc
>
>
> use v5.14;
> use strict;
> use warnings;
>
> package Stables 1.01 {
> use Moose;
> has "animals" => (
> traits => ["Array"],
> is => "rw",
> isa => "ArrayRef[Animal]",
> default => sub { [] },
> handles => {
> add_animal => "push",
> add_animals => "push",
> },
> );
> sub roll_call {
> my($self) = @_;
> for my $animal($self->animals) {
The problem is that «$self->animals» returns an (unblessed) array reference and
not the list of individual animals, so you should do something like:
for my $animal (@{ $self->animals }) {
Note that I think I saw a way to return the flattened array in Moose, but I
don't remember the specifics.
Regards,
Shlomi Fish
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