use Moo::_Utils;
use B 'perlstring';
-our $VERSION = '0.009009'; # 0.9.9
+our $VERSION = '0.009_017'; # 0.9.17
$VERSION = eval $VERSION;
+require Moo::sification;
+
our %MAKERS;
sub import {
my $class = shift;
strictures->import;
return if $MAKERS{$target}; # already exported into this package
- *{_getglob("${target}::extends")} = sub {
+ _install_coderef "${target}::extends" => sub {
_load_module($_) for @_;
# Can't do *{...} = \@_ or 5.10.0's mro.pm stops seeing @ISA
@{*{_getglob("${target}::ISA")}{ARRAY}} = @_;
};
- *{_getglob("${target}::with")} = sub {
+ _install_coderef "${target}::with" => sub {
require Moo::Role;
- die "Only one role supported at a time by with" if @_ > 1;
- Moo::Role->apply_role_to_package($target, $_[0]);
+ Moo::Role->apply_roles_to_package($target, $_[0]);
};
$MAKERS{$target} = {};
- *{_getglob("${target}::has")} = sub {
+ _install_coderef "${target}::has" => sub {
my ($name, %spec) = @_;
($MAKERS{$target}{accessor} ||= do {
require Method::Generate::Accessor;
->register_attribute_specs($name, \%spec);
};
foreach my $type (qw(before after around)) {
- *{_getglob "${target}::${type}"} = sub {
+ _install_coderef "${target}::${type}" => sub {
require Class::Method::Modifiers;
_install_modifier($target, $type, @_);
};
require Moo::Object; ('Moo::Object');
} unless @{"${target}::ISA"};
}
+ if ($INC{'Moo/HandleMoose.pm'}) {
+ Moo::HandleMoose::inject_fake_metaclass_for($target);
+ }
}
sub _constructor_maker_for {
? ($con ? $con->construction_string : undef)
: ('$class->'.$target.'::SUPER::new(@_)')
),
- subconstructor_generator => (
- $class.'->_constructor_maker_for($class,'.perlstring($target).')'
+ subconstructor_handler => (
+ ' if ($Moo::MAKERS{$class}) {'."\n"
+ .' '.$class.'->_constructor_maker_for($class,'.perlstring($target).');'."\n"
+ .' return $class->new(@_)'.";\n"
+ .' }'."\n"
),
)
->install_delayed
}
1;
+=pod
+
+=encoding utf-8
=head1 NAME
=head2 BUILDARGS
-This feature from Moose is not yet supported.
+ around BUILDARGS => sub {
+ my $orig = shift;
+ my ( $class, @args ) = @_;
+
+ unshift @args, "attr1" if @args % 2 == 1;
+
+ return $class->$orig(@args);
+ };
+
+ Foo::Bar->new( 3 );
+
+The default implementation of this method accepts a hash or hash reference of
+named parameters. If it receives a single argument that isn't a hash reference
+it throws an error.
+
+You can override this method in your class to handle other types of options
+passed to the constructor.
+
+This method should always return a hash reference of named options.
+
+=head2 BUILD
+
+Define a C<BUILD> method on your class and the constructor will automatically
+call the C<BUILD> method from parent down to child after the object has
+been instantiated. Typically this is used for object validation or possibly
+logging.
+
+=head2 DEMOLISH
-=head2 BUILDALL
+If you have a C<DEMOLISH> method anywhere in your inheritance hierarchy,
+a C<DESTROY> method is created on first object construction which will call
+C<< $instance->DEMOLISH($in_global_destruction) >> for each C<DEMOLISH>
+method from child upwards to parents.
-Don't override (or probably even call) this method. Instead, you can define
-a C<BUILD> method on your class and the constructor will automatically call the
-C<BUILD> method from parent down to child after the object has been
-instantiated. Typically this is used for object validation or possibly logging.
+Note that the C<DESTROY> method is created on first construction of an object
+of your class in order to not add overhead to classes without C<DEMOLISH>
+methods; this may prove slightly surprising if you try and define your own.
=head2 does
L<Sub::Quote aware|/SUB QUOTE AWARE>
+=item * handles
+
+Takes a string
+
+ handles => 'RobotRole'
+
+Where C<RobotRole> is a role (L<Moo::Role>) that defines an interface which
+becomes the list of methods to handle.
+
+Takes a list of methods
+
+ handles => [ qw( one two ) ]
+
+Takes a hashref
+
+ handles => {
+ un => 'one',
+ }
+
=item * trigger
-Takes a coderef which will get called any time the attribute is set. Coderef
-will be invoked against the object with the new value as an argument.
+Takes a coderef which will get called any time the attribute is set. This
+includes the constructor. Coderef will be invoked against the object with the
+new value as an argument.
Note that Moose also passes the old value, if any; this feature is not yet
supported.
B<Boolean>. Set this if the attribute must be passed on instantiation.
+=item * reader
+
+The value of this attribute will be the name of the method to get the value of
+the attribute. If you like Java style methods, you might set this to
+C<get_foo>
+
+=item * writer
+
+The value of this attribute will be the name of the method to set the value of
+the attribute. If you like Java style methods, you might set this to
+C<set_foo>
+
=item * weak_ref
B<Boolean>. Set this if you want the reference that the attribute contains to
=head1 INCOMPATIBILITIES WITH MOOSE
You can only compose one role at a time. If your application is large or
-complex enough to warrant complex composition, you wanted L<Moose>.
+complex enough to warrant complex composition, you wanted L<Moose>. Note that
+this does not mean you can only compose one role per class -
+
+ with 'FirstRole';
+ with 'SecondRole';
+
+is absolutely fine, there's just currently no equivalent of Moose's
-There is no complex type system. C<isa> is verified with a coderef, if you
+ with 'FirstRole', 'SecondRole';
+
+which composes the two roles together, and then applies them.
+
+There is no built in type system. C<isa> is verified with a coderef, if you
need complex types, just make a library of coderefs, or better yet, functions
-that return quoted subs.
+that return quoted subs. L<MooX::Types::MooseLike> provides a similar API
+to L<MooseX::Types::Moose> so that you can write
+
+ has days_to_live => (is => 'ro', isa => Int);
+
+and have it work with both; it is hoped that providing only subrefs as an
+API will encourage the use of other type systems as well, since it's
+probably the weakest part of Moose design-wise.
C<initializer> is not supported in core since the author considers it to be a
-bad idea but may be supported by an extension in future.
+bad idea but may be supported by an extension in future. Meanwhile C<trigger> or
+C<coerce> are more likely to be able to fulfill your needs.
There is no meta object. If you need this level of complexity you wanted
L<Moose> - Moo succeeds at being small because it explicitly does not
be handled by around albeit with a little more typing, and the author considers
augment to be a bad idea.
+The C<dump> method is not provided by default. The author suggests loading
+L<Devel::Dwarn> into C<main::> (via C<perl -MDevel::Dwarn ...> for example) and
+using C<$obj-E<gt>$::Dwarn()> instead.
+
L</default> only supports coderefs, because doing otherwise is usually a
mistake anyway.
C<documentation> is not supported since it's a very poor replacement for POD.
+Handling of warnings: when you C<use Moo> we enable FATAL warnings. The nearest
+similar invocation for L<Moose> would be:
+
+ use Moose;
+ use warnings FATAL => "all";
+
+Additionally, L<Moo> supports a set of attribute option shortcuts intended to
+reduce common boilerplate. The set of shortcuts is the same as in the L<Moose>
+module L<MooseX::AttributeShortcuts>. So if you:
+
+ package MyClass;
+ use Moo;
+
+The nearest L<Moose> invocation would be:
+
+ package MyClass;
+
+ use Moose;
+ use warnings FATAL => "all";
+ use MooseX::AttributeShortcuts;
+
+or, if you're inheriting from a non-Moose class,
+
+ package MyClass;
+
+ use Moose;
+ use MooseX::NonMoose;
+ use warnings FATAL => "all";
+ use MooseX::AttributeShortcuts;
+
+Finally, Moose requires you to call
+
+ __PACKAGE__->meta->make_immutable;
+
+at the end of your class to get an inlined (i.e. not horribly slow)
+constructor. Moo does it automatically the first time ->new is called
+on your class.
+
=head1 AUTHOR
mst - Matt S. Trout (cpan:MSTROUT) <mst@shadowcat.co.uk>
chip - Chip Salzenberg (cpan:CHIPS) <chip@pobox.com>
+ajgb - Alex J. G. Burzyński (cpan:AJGB) <ajgb@cpan.org>
+
+doy - Jesse Luehrs (cpan:DOY) <doy at tozt dot net>
+
+perigrin - Chris Prather (cpan:PERIGRIN) <chris@prather.org>
+
=head1 COPYRIGHT
Copyright (c) 2010-2011 the Moo L</AUTHOR> and L</CONTRIBUTORS>
projects / gitmo/Moo.git / blobdiff