X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMouse%2FPurePerl.pm;h=fc6b45786a4c6248e421b65c4286a98eabd630c3;hb=5d3ab42b8c257acdf05ce9ac602ec16a5923a879;hp=17017ddb64fc2beff3bbb2f4943ccd904b28de1e;hpb=8aba926dbf11e9cf418c7c79b925d15e60e1e990;p=gitmo%2FMouse.git

diff --git a/lib/Mouse/PurePerl.pm b/lib/Mouse/PurePerl.pm
index 17017dd..fc6b457 100644
--- a/lib/Mouse/PurePerl.pm
+++ b/lib/Mouse/PurePerl.pm
@@ -18,15 +18,20 @@ sub is_class_loaded {
     return 0 if ref($class) || !defined($class) || !length($class);
 
     # walk the symbol table tree to avoid autovififying
-    # \*{${main::}{"Foo::"}} == \*main::Foo::
+    # \*{${main::}{"Foo::"}{"Bar::"}} == \*main::Foo::Bar::
 
     my $pack = \%::;
     foreach my $part (split('::', $class)) {
-        my $entry = \$pack->{$part . '::'};
+        $part .= '::';
+        return 0 if !exists $pack->{$part};
+
+        my $entry = \$pack->{$part};
         return 0 if ref($entry) ne 'GLOB';
-        $pack = *{$entry}{HASH} or return 0;
+        $pack = *{$entry}{HASH};
     }
 
+    return 0 if !%{$pack};
+
     # check for $VERSION or @ISA
     return 1 if exists $pack->{VERSION}
              && defined *{$pack->{VERSION}}{SCALAR} && defined ${ $pack->{VERSION} };
@@ -92,6 +97,32 @@ sub generate_isa_predicate_for {
     return $predicate;
 }
 
+sub generate_can_predicate_for {
+    my($methods_ref, $name) = @_;
+
+    my @methods = @{$methods_ref};
+
+    my $predicate = sub{
+        my($instance) = @_;
+        if(Scalar::Util::blessed($instance)){
+            foreach my $method(@methods){
+                if(!$instance->can($method)){
+                    return 0;
+                }
+            }
+            return 1;
+        }
+        return 0;
+    };
+
+    if(defined $name){
+        no strict 'refs';
+        *{ caller() . '::' . $name } = $predicate;
+        return;
+    }
+
+    return $predicate;
+}
 
 package
     Mouse::Util::TypeConstraints;
@@ -199,7 +230,6 @@ sub add_method {
     return;
 }
 
-
 package
     Mouse::Meta::Class;
 
@@ -492,7 +522,7 @@ Mouse::PurePerl - A Mouse guts in pure Perl
 
 =head1 VERSION
 
-This document describes Mouse version 0.40_07
+This document describes Mouse version 0.43
 
 =head1 SEE ALSO