-#!/usr/bin/env perl
package Mouse;
use strict;
use warnings;
+use 5.006;
use base 'Exporter';
-our $VERSION = '0.13';
-use 5.006;
+our $VERSION = '0.24';
use Carp 'confess';
-use Mouse::Util 'blessed';
+use Scalar::Util 'blessed';
+use Mouse::Util;
use Mouse::Meta::Attribute;
use Mouse::Meta::Class;
use Mouse::Object;
-use Mouse::TypeRegistry;
+use Mouse::Util::TypeConstraints;
-our @EXPORT = qw(extends has before after around blessed confess with);
+our @EXPORT = qw(extends has before after around override super blessed confess with);
sub extends { Mouse::Meta::Class->initialize(caller)->superclasses(@_) }
sub has {
my $meta = Mouse::Meta::Class->initialize(caller);
-
- my $names = shift;
- $names = [$names] if !ref($names);
-
- for my $name (@$names) {
- if ($name =~ s/^\+//) {
- Mouse::Meta::Attribute->clone_parent($meta, $name, @_);
- }
- else {
- Mouse::Meta::Attribute->create($meta, $name, @_);
- }
- }
+ $meta->add_attribute(@_);
}
sub before {
}
sub with {
+ Mouse::Util::apply_all_roles((caller)[0], @_);
+}
+
+our $SUPER_PACKAGE;
+our $SUPER_BODY;
+our @SUPER_ARGS;
+
+sub super {
+ # This check avoids a recursion loop - see
+ # t/100_bugs/020_super_recursion.t
+ return if defined $SUPER_PACKAGE && $SUPER_PACKAGE ne caller();
+ return unless $SUPER_BODY; $SUPER_BODY->(@SUPER_ARGS);
+}
+
+sub override {
my $meta = Mouse::Meta::Class->initialize(caller);
+ my $pkg = $meta->name;
+
+ my $name = shift;
+ my $code = shift;
- my $role = shift;
+ my $body = $pkg->can($name)
+ or confess "You cannot override '$name' because it has no super method";
- confess "Mouse::Role only supports 'with' on individual roles at a time" if @_;
+ $meta->add_method($name => sub {
+ local $SUPER_PACKAGE = $pkg;
+ local @SUPER_ARGS = @_;
+ local $SUPER_BODY = $body;
- Mouse::load_class($role);
- $role->meta->apply($meta);
+ $code->(@_);
+ });
}
sub import {
+ my $class = shift;
+
strict->import;
warnings->import;
- my $caller = caller;
+ my $opts = do {
+ if (ref($_[0]) && ref($_[0]) eq 'HASH') {
+ shift @_;
+ } else {
+ +{ };
+ }
+ };
+ my $level = delete $opts->{into_level};
+ $level = 0 unless defined $level;
+ my $caller = caller($level);
+
+ # we should never export to main
+ if ($caller eq 'main') {
+ warn qq{$class does not export its sugar to the 'main' package.\n};
+ return;
+ }
my $meta = Mouse::Meta::Class->initialize($caller);
$meta->superclasses('Mouse::Object')
unless $meta->superclasses;
+ # make a subtype for each Mouse class
+ class_type($caller) unless find_type_constraint($caller);
+
no strict 'refs';
no warnings 'redefine';
*{$caller.'::meta'} = sub { $meta };
- Mouse->export_to_level(1, @_);
+ if (@_) {
+ __PACKAGE__->export_to_level( $level+1, $class, @_);
+ } else {
+ # shortcut for the common case of no type character
+ no strict 'refs';
+ for my $keyword (@EXPORT) {
+ *{ $caller . '::' . $keyword } = *{__PACKAGE__ . '::' . $keyword};
+ }
+ }
}
sub unimport {
confess "Invalid class name ($display)";
}
+ return 1 if $class eq 'Mouse::Object';
return 1 if is_class_loaded($class);
(my $file = "$class.pm") =~ s{::}{/}g;
return 0;
}
+sub class_of {
+ return unless defined $_[0];
+ my $class = blessed($_[0]) || $_[0];
+ return Mouse::Meta::Class::get_metaclass_by_name($class);
+}
+
1;
__END__
=head1 DESCRIPTION
-L<Moose> is wonderful.
+L<Moose> is wonderful. B<Use Moose instead of Mouse.>
-Unfortunately, it's a little slow. Though significant progress has been made
-over the years, the compile time penalty is a non-starter for some
+Unfortunately, Moose has a compile-time penalty. Though significant progress has
+been made over the years, the compile time penalty is a non-starter for some
applications.
-Mouse aims to alleviate this by providing a subset of Moose's
-functionality, faster. In particular, L<Moose/has> is missing only a few
-expert-level features.
+Mouse aims to alleviate this by providing a subset of Moose's functionality,
+faster.
-We're also going as light on dependencies as possible. Most functions we use
-from L<Scalar::Util> are copied into this dist. L<Scalar::Util> is required if
-you'd like weak references; there's simply no way to do it from pure Perl.
-L<Class::Method::Modifiers> is required if you want support for L</before>,
-L</after>, and L</around>.
+We're also going as light on dependencies as possible.
+L<Class::Method::Modifiers> or L<Data::Util> is required if you want support
+for L</before>, L</after>, and L</around>.
=head2 MOOSE COMPAT
The idea is that, if you need the extra power, you should be able to run
C<s/Mouse/Moose/g> on your codebase and have nothing break. To that end,
-nothingmuch has written L<Squirrel> (part of this distribution) which will act
-as Mouse unless Moose is loaded, in which case it will act as Moose.
-
-Mouse also has the blessings of Moose's author, stevan.
-
-=head2 MISSING FEATURES
-
-=head3 Roles
-
-We're working on fixing this one! stevan has suggested an implementation
-strategy. Mouse currently ignores methods, so that needs to be fixed next.
-Roles that consist entirely of attributes may be usable in this very version.
-
-=head3 Complex types
-
-User-defined type constraints and parameterized types may be implemented. Type
-coercions probably not (patches welcome).
-
-=head3 Bootstrapped meta world
-
-Very handy for extensions to the MOP. Not pressing, but would be nice to have.
+we have written L<Any::Moose> which will act as Mouse unless Moose is loaded,
+in which case it will act as Moose.
-=head3 Modification of attribute metaclass
+=head2 MouseX
-When you declare an attribute with L</has>, you get the inlined accessors
-installed immediately. Modifying the attribute metaclass, even if possible,
-does nothing.
+Please don't copy MooseX code to MouseX. If you need extensions, you really
+should upgrade to Moose. We don't need two parallel sets of extensions!
-=head3 Lots more..
-
-MouseX?
+If you really must write a Mouse extension, please contact the Moose mailing
+list or #moose on IRC beforehand.
=head1 KEYWORDS
=item isa => TypeConstraint
-Provides basic type checking in the constructor and accessor. Basic types such
-as C<Int>, C<ArrayRef>, C<Defined> are supported. Any unknown type is taken to
-be a class check (e.g. isa => 'DateTime' would accept only L<DateTime>
-objects).
+Provides type checking in the constructor and accessor. The following types are
+supported. Any unknown type is taken to be a class check (e.g. isa =>
+'DateTime' would accept only L<DateTime> objects).
+
+ Any Item Bool Undef Defined Value Num Int Str ClassName
+ Ref ScalarRef ArrayRef HashRef CodeRef RegexpRef GlobRef
+ FileHandle Object
+
+For more documentation on type constraints, see L<Mouse::Util::TypeConstraints>.
+
=item required => 0|1
involves checking for the existence of C<$VERSION>, C<@ISA>, and any
locally-defined method.
-=head1 AUTHOR
+=head1 SOURCE CODE ACCESS
+
+We have a public git repo:
+
+ git clone git://jules.scsys.co.uk/gitmo/Mouse.git
+
+=head1 AUTHORS
Shawn M Moore, C<< <sartak at gmail.com> >>
Yuval Kogman, C<< <nothingmuch at woobling.org> >>
+tokuhirom
+
+Yappo
+
+wu-lee
+
with plenty of code borrowed from L<Class::MOP> and L<Moose>
=head1 BUGS
-No known bugs.
+There is a known issue with Mouse on 5.6.2 regarding the @ISA tests. Until
+this is resolve the minimum version of Perl for Mouse is set to 5.8.0. Patches
+to resolve these tests are more than welcome.
Please report any bugs through RT: email
C<bug-mouse at rt.cpan.org>, or browse
projects / gitmo/Mouse.git / blobdiff