Hi, today I've been dabbling with Moose for the first time. After reading the doc for Moose::Util::TypeConstraints, I would have expected this example to result in $stuff to be instantiated with [ 1, 2 ] in 'somearray':

#!/usr/bin/perl

use strict;
use warnings;

use Data::Dumper;

package MyClass;

use Moose;
#use Moose::Util::TypeConstraints;

has 'somearray' => ( is => 'rw', isa => 'ArrayRef[Int]');
#has 'somearray' => ( is => 'rw', isa => 'ArrayRef');

1;

package main;
#use Moose;
#use Moose::Util::TypeConstraints;
my @array = (1,2);

print Dumper(@array);

my $stuff = new MyClass(somearray => \@array);

print Dumper($stuff);

[download]

Instead I get the following error message:

Attribute (somearray) does not pass the type constraint (__ANON__) wit
+h 'ARRAY(0x81d3b74)' at /usr/share/perl5/Moose/Meta/Attribute.pm line
+ 221
        Moose::Meta::Attribute::initialize_instance_slot('Moose::Meta:
+:Attribute=HASH(0x8451b3c)', 'Moose::Meta::Instance=HASH(0x8451f5c)',
+ 'MyClass=HASH(0x84520dc)', 'HASH(0x835c518)') called at /usr/share/p
+erl5/Moose/Meta/Class.pm line 102
        Moose::Meta::Class::construct_instance('Moose::Meta::Class=HAS
+H(0x844b9a4)', 'somearray', 'ARRAY(0x81d3b74)') called at /usr/share/
+perl5/Class/MOP/Class.pm line 306
        Class::MOP::Class::new_object('Moose::Meta::Class=HASH(0x844b9
+a4)', 'somearray', 'ARRAY(0x81d3b74)') called at /usr/share/perl5/Moo
+se/Meta/Class.pm line 81
        Moose::Meta::Class::new_object('Moose::Meta::Class=HASH(0x844b
+9a4)', 'somearray', 'ARRAY(0x81d3b74)') called at /usr/share/perl5/Mo
+ose/Object.pm line 26
        Moose::Object::new('MyClass', 'somearray', 'ARRAY(0x81d3b74)')
+ called at moose_test.pl line 26

[download]

When commenting out the has 'somearray'.... line and replacing it with the one commented out above,I get the $stuff object I expect.
Can anyone tell me what I am doing wrong here?

In reply to Type Constraints in Moose by skirnir

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