NAME
Mojo::Base - Minimal base class for Mojo projects
SYNOPSIS
package
Cat;
use
Mojo::Base -base;
has
'mouse'
;
has
paws
=> 4;
has
[
qw/ears eyes/
] => 2;
package
Tiger;
has
stripes
=> 42;
package
main;
my
$mew
= Cat->new(
mouse
=>
'Mickey'
);
say
$mew
->paws;
say
$mew
->paws(5)->paws;
my
$rawr
= Tiger->new(
stripes
=> 23);
say
$rawr
->ears *
$rawr
->stripes;
DESCRIPTION
Mojo::Base is a simple base class for Mojo projects.
# Automatically enables "strict", "warnings" and Perl 5.10 features
use
Mojo::Base -strict;
use
Mojo::Base -base;
All three forms save a lot of typing.
# use Mojo::Base -strict;
use
strict;
use
warnings;
# use Mojo::Base -base;
use
strict;
use
warnings;
use
Mojo::Base;
push
@ISA
,
'Mojo::Base'
;
sub
has
{ Mojo::Base::attr(__PACKAGE__,
@_
) }
# use Mojo::Base 'SomeBaseClass';
use
strict;
use
warnings;
require
SomeBaseClass;
push
@ISA
,
'SomeBaseClass'
;
use
Mojo::Base;
sub
has
{ Mojo::Base::attr(__PACKAGE__,
@_
) }
FUNCTIONS
Mojo::Base exports the following functions if imported with the -base
flag or a base class.
has
has
'name'
;
has
[
qw/name1 name2 name3/
];
has
name
=>
'foo'
;
has
name
=>
sub
{...};
has
[
qw/name1 name2 name3/
] =>
'foo'
;
has
[
qw/name1 name2 name3/
] =>
sub
{...};
Create attributes, just like the attr
method.
METHODS
Mojo::Base implements the following methods.
new
my
$instance
= BaseSubClass->new;
my
$instance
= BaseSubClass->new(
name
=>
'value'
);
my
$instance
= BaseSubClass->new({
name
=>
'value'
});
This base class provides a basic object constructor. You can pass it either a hash or a hash reference with attribute values.
attr
__PACKAGE__->attr(
'name'
);
__PACKAGE__->attr([
qw/name1 name2 name3/
]);
__PACKAGE__->attr(
name
=>
'foo'
);
__PACKAGE__->attr(
name
=>
sub
{...});
__PACKAGE__->attr([
qw/name1 name2 name3/
] =>
'foo'
);
__PACKAGE__->attr([
qw/name1 name2 name3/
] =>
sub
{...});
Create attributes. An arrayref can be used to create more than one attribute. Pass an optional second argument to set a default value, it should be a constant or a sub reference. The sub reference will be excuted at accessor read time if there's no set value.
DEBUGGING
You can set the MOJO_BASE_DEBUG
environment variable to get some advanced diagnostics information printed to STDERR
.
MOJO_BASE_DEBUG=1