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2 results tagged attributes x

How can I prevent Perl Moose Read-Only Attributes being set upon a call to new? - Stack Overflow
Use the init_arg attribute configuration (see "Constructor parameters" in Moose::Manual::Attributes):
```
package SOD::KuuAnalyze::ProdId;
use Moose;

has 'users' => (
    isa => 'ArrayRef[Str]', is => "ro",
    init_arg => undef,    # do not allow in constructor
);
1;
```
February 3, 2022 at 9:58:55 AM UTC - permalink -

- https://stackoverflow.com/questions/1814046/how-can-i-prevent-perl-moose-read-only-attributes-being-set-upon-a-call-to-new

attributes moose new-operator perl privacy

Enumerating all attributes of a Moo object

package Foo {
  use Moo;
  has a => (is => "ro");
  has b => (is => "ro");
}

my $bar = Foo->new(a => 42);

# Print only 'a'
say $_ for keys %{ $bar }

# Print all attributes
say $_ for keys( %{
   'Moo'->_constructor_maker_for('Foo')->all_attribute_specs
});

October 19, 2020 at 7:41:08 PM UTC - permalink -

- https://www.perlmonks.org/?node_id=1043195

attributes introspection meta moo oop perl

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