A tiny tweak

[gitmo/Mouse.git] / lib / Mouse.pm

diff --git a/lib/Mouse.pm b/lib/Mouse.pm
index 404c68d..d006137 100644 (file)
--- a/lib/Mouse.pm
+++ b/lib/Mouse.pm
@@ -4,19 +4,24 @@ use warnings;
 use 5.006;
 use base 'Exporter';
 
-our $VERSION = '0.27';
+our $VERSION = '0.30';
 
 use Carp 'confess';
 use Scalar::Util 'blessed';
 use Mouse::Util;
 
 use Mouse::Meta::Attribute;
+use Mouse::Meta::Module; # class_of()
 use Mouse::Meta::Class;
 use Mouse::Object;
 use Mouse::Util::TypeConstraints;
 
 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 {
@@ -119,11 +124,10 @@ sub init_meta {
     $meta->superclasses($base_class)
         unless $meta->superclasses;
 
-    {
-        no strict 'refs';
-        no warnings 'redefine';
-        *{$class.'::meta'} = sub { $meta };
-    }
+    $meta->add_method(meta => sub{
+        return Mouse::Meta::Class->initialize(ref($_[0]) || $_[0]);
+    });
+
 
     return $meta;
 }
@@ -169,21 +173,30 @@ sub import {
 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;
@@ -194,11 +207,14 @@ sub load_class {
     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::
 
@@ -209,27 +225,21 @@ sub is_class_loaded {
     }
 
     # 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 unless defined $_[0];
-    my $class = blessed($_[0]) || $_[0];
-    return Mouse::Meta::Class::get_metaclass_by_name($class);
-}
-
 1;
 
 __END__
@@ -268,16 +278,19 @@ Mouse - Moose minus the antlers
 
 L<Moose> is wonderful. B<Use Moose instead of Mouse.>
 
-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.
+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.
 
 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>.
+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
 
@@ -289,7 +302,13 @@ runs the test suite 4x faster.
 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,
 we have written L<Any::Moose> which will act as Mouse unless Moose is loaded,
-in which case it will act as Moose.
+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:
+
+    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
 
@@ -299,6 +318,12 @@ should upgrade to Moose. We don't need two parallel sets of extensions!
 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
@@ -495,7 +520,9 @@ L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Mouse>.
 
 =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.