use 5.006;
use base 'Exporter';
-our $VERSION = '0.15';
-
-BEGIN {
- if ($ENV{MOUSE_DEBUG}) {
- *DEBUG = sub (){ 1 };
- } else {
- *DEBUG = sub (){ 0 };
- }
-}
+our $VERSION = '0.30';
use Carp 'confess';
use Scalar::Util 'blessed';
our @EXPORT = qw(extends has before after around override super blessed confess with);
+our %is_removable = map{ $_ => undef } @EXPORT;
+delete $is_removable{blessed};
+delete $is_removable{confess};
+
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 init_meta {
+ # This used to be called as a function. This hack preserves
+ # backwards compatibility.
+ if ( $_[0] ne __PACKAGE__ ) {
+ return __PACKAGE__->init_meta(
+ for_class => $_[0],
+ base_class => $_[1],
+ metaclass => $_[2],
+ );
+ }
+
+ shift;
+ my %args = @_;
+
+ my $class = $args{for_class}
+ or Carp::croak(
+ "Cannot call init_meta without specifying a for_class");
+ my $base_class = $args{base_class} || 'Mouse::Object';
+ my $metaclass = $args{metaclass} || 'Mouse::Meta::Class';
+
+ Carp::croak("The Metaclass $metaclass must be a subclass of Mouse::Meta::Class.")
+ unless $metaclass->isa('Mouse::Meta::Class');
+
+ # make a subtype for each Mouse class
+ class_type($class)
+ unless find_type_constraint($class);
+
+ my $meta = $metaclass->initialize($class);
+ $meta->superclasses($base_class)
+ unless $meta->superclasses;
+
+ $meta->add_method(meta => sub{
+ return Mouse::Meta::Class->initialize(ref($_[0]) || $_[0]);
+ });
+
+
+ return $meta;
+}
+
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') {
return;
}
- my $meta = Mouse::Meta::Class->initialize($caller);
- $meta->superclasses('Mouse::Object')
- unless $meta->superclasses;
-
- no strict 'refs';
- no warnings 'redefine';
- *{$caller.'::meta'} = sub { $meta };
+ Mouse->init_meta(
+ for_class => $caller,
+ );
if (@_) {
- __PACKAGE__->export_to_level( 1, $class, @_);
+ __PACKAGE__->export_to_level( $level+1, $class, @_);
} else {
# shortcut for the common case of no type character
no strict 'refs';
sub unimport {
my $caller = caller;
- no strict 'refs';
+ my $stash = do{
+ no strict 'refs';
+ \%{$caller . '::'}
+ };
+
for my $keyword (@EXPORT) {
- delete ${ $caller . '::' }{$keyword};
+ my $code;
+ if(exists $is_removable{$keyword}
+ && ($code = $caller->can($keyword))
+ && (Mouse::Util::get_code_info($code))[0] eq __PACKAGE__){
+
+ delete $stash->{$keyword};
+ }
}
}
sub load_class {
my $class = shift;
- if (ref($class) || !defined($class) || !length($class)) {
+ if (!Mouse::Util::is_valid_class_name($class)) {
my $display = defined($class) ? $class : 'undef';
confess "Invalid class name ($display)";
}
- return 1 if $class eq 'Mouse::Object';
return 1 if is_class_loaded($class);
(my $file = "$class.pm") =~ s{::}{/}g;
return 1;
}
+my %is_class_loaded_cache;
sub is_class_loaded {
my $class = shift;
return 0 if ref($class) || !defined($class) || !length($class);
+ return 1 if exists $is_class_loaded_cache{$class};
+
# walk the symbol table tree to avoid autovififying
# \*{${main::}{"Foo::"}} == \*main::Foo::
}
# check for $VERSION or @ISA
- return 1 if exists ${$$pack}{VERSION}
+ return ++$is_class_loaded_cache{$class} if exists ${$$pack}{VERSION}
&& defined *{${$$pack}{VERSION}}{SCALAR};
- return 1 if exists ${$$pack}{ISA}
+ return ++$is_class_loaded_cache{$class} if exists ${$$pack}{ISA}
&& defined *{${$$pack}{ISA}}{ARRAY};
# check for any method
foreach ( keys %{$$pack} ) {
next if substr($_, -2, 2) eq '::';
- return 1 if defined *{${$$pack}{$_}}{CODE};
+ return ++$is_class_loaded_cache{$class} if defined *{${$$pack}{$_}}{CODE};
}
# fail
return 0;
}
+sub class_of {
+ return Mouse::Meta::Class::class_of($_[0]);
+}
+
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
-applications.
+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 very specific applications. If you are writing a command-line application
+or CGI script where startup time is essential, you may not be able to use
+Moose. We recommend that you instead use L<HTTP::Engine> and FastCGI for the
+latter, if possible.
-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::Fast> or L<Class::Method::Modifiers> 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.
+we have written L<Any::Moose> which will act as Mouse unless Moose is loaded,
+in which case it will act as Moose. Since Mouse is a little sloppier than
+Moose, if you run into weird errors, it would be worth running:
-Mouse also has the blessings of Moose's author, stevan.
+ ANY_MOOSE=Moose perl your-script.pl
+
+to see if the bug is caused by Mouse. Moose's diagnostics and validation are
+also much better.
=head2 MouseX
If you really must write a Mouse extension, please contact the Moose mailing
list or #moose on IRC beforehand.
+=head2 Maintenance
+
+The original author of this module has mostly stepped down from maintaining
+Mouse. See L<http://www.nntp.perl.org/group/perl.moose/2009/04/msg653.html>.
+If you would like to help maintain this module, please get in touch with us.
+
=head1 KEYWORDS
=head2 meta -> Mouse::Meta::Class
=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 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> >>
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
=head1 COPYRIGHT AND LICENSE
-Copyright 2008 Shawn M Moore.
+Copyright 2008-2009 Infinity Interactive, Inc.
+
+http://www.iinteractive.com/
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
projects / gitmo/Mouse.git / blobdiff