X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMoose%2FUtil%2FTypeConstraints%2FOptimizedConstraints.pm;h=e42339580b9e40dc0bfc9e649f84dbb011a21acb;hb=aead17e74252e3884f9f8e39912ca98fdf4b4dd5;hp=3ad1f888d3e2cda78b3cff56002dbe1d8b1a941d;hpb=004222dc591495492d18979bee465a5a4fcbd8d5;p=gitmo%2FMoose.git

diff --git a/lib/Moose/Util/TypeConstraints/OptimizedConstraints.pm b/lib/Moose/Util/TypeConstraints/OptimizedConstraints.pm
index 3ad1f88..e423395 100644
--- a/lib/Moose/Util/TypeConstraints/OptimizedConstraints.pm
+++ b/lib/Moose/Util/TypeConstraints/OptimizedConstraints.pm
@@ -5,7 +5,8 @@ use warnings;
 
 use Scalar::Util 'blessed', 'looks_like_number';
 
-our $VERSION   = '0.02';
+our $VERSION   = '0.62';
+$VERSION = eval $VERSION;
 our $AUTHORITY = 'cpan:STEVAN';
 
 sub Value { defined($_[0]) && !ref($_[0]) }
@@ -18,15 +19,12 @@ sub Num { !ref($_[0]) && looks_like_number($_[0]) }
 
 sub Int { defined($_[0]) && !ref($_[0]) && $_[0] =~ /^-?[0-9]+$/ }
 
-{
-    no warnings 'uninitialized';
-    sub ScalarRef { ref($_[0]) eq 'SCALAR' }
-    sub ArrayRef  { ref($_[0]) eq 'ARRAY'  }
-    sub HashRef   { ref($_[0]) eq 'HASH'   }
-    sub CodeRef   { ref($_[0]) eq 'CODE'   }
-    sub RegexpRef { ref($_[0]) eq 'Regexp' }
-    sub GlobRef   { ref($_[0]) eq 'GLOB'   }
-}
+sub ScalarRef { ref($_[0]) eq 'SCALAR' }
+sub ArrayRef  { ref($_[0]) eq 'ARRAY'  }
+sub HashRef   { ref($_[0]) eq 'HASH'   }
+sub CodeRef   { ref($_[0]) eq 'CODE'   }
+sub RegexpRef { ref($_[0]) eq 'Regexp' }
+sub GlobRef   { ref($_[0]) eq 'GLOB'   }
 
 sub FileHandle { ref($_[0]) eq 'GLOB' && Scalar::Util::openhandle($_[0]) or blessed($_[0]) && $_[0]->isa("IO::Handle") }
 
@@ -34,6 +32,34 @@ sub Object { blessed($_[0]) && blessed($_[0]) ne 'Regexp' }
 
 sub Role { blessed($_[0]) && $_[0]->can('does') }
 
+sub ClassName {
+    return 0 if ref($_[0]) || !defined($_[0]) || !length($_[0]);
+
+    # walk the symbol table tree to avoid autovififying
+    # \*{${main::}{"Foo::"}} == \*main::Foo::
+
+    my $pack = \*::;
+    foreach my $part (split('::', $_[0])) {
+        return 0 unless exists ${$$pack}{"${part}::"};
+        $pack = \*{${$$pack}{"${part}::"}};
+    }
+
+    # check for $VERSION or @ISA
+    return 1 if exists ${$$pack}{VERSION}
+             && defined *{${$$pack}{VERSION}}{SCALAR};
+    return 1 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};
+    }
+
+    # fail
+    return 0;
+}
+
 # NOTE:
 # we have XS versions too, ...
 # 04:09 <@konobi> nothingmuch: konobi.co.uk/code/utilsxs.tar.gz
@@ -87,6 +113,8 @@ no user serviceable parts inside.
 
 =item Role
 
+=item ClassName
+
 =back
 
 =head1 BUGS