X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=lib%2FMouse%2FUtil.pm;h=625ed4eb4d07dff733e13c597efc69abcd59cbfd;hp=9fb77ae99283b294aaeb72b30b9f8e86ef8b0d4e;hb=577be3900a87552be0c16d354f2302ef7030cc2c;hpb=58fe9fb7641a3bb817b773339bc1b81a5a373e62

diff --git a/lib/Mouse/Util.pm b/lib/Mouse/Util.pm
index 9fb77ae..625ed4e 100644
--- a/lib/Mouse/Util.pm
+++ b/lib/Mouse/Util.pm
@@ -6,6 +6,8 @@ use base 'Exporter';
 
 our %dependencies = (
     'Scalar::Util' => {
+
+#       VVVVV   CODE TAKEN FROM SCALAR::UTIL   VVVVV
         'blessed' => do {
             do {
                 no strict 'refs';
@@ -41,8 +43,59 @@ our %dependencies = (
 
             0;
         },
+        'reftype' => sub {
+            local($@, $SIG{__DIE__}, $SIG{__WARN__});
+            my $r = shift;
+            my $t;
+
+            length($t = ref($r)) or return undef;
+
+            # This eval will fail if the reference is not blessed
+            eval { $r->a_sub_not_likely_to_be_here; 1 }
+            ? do {
+                $t = eval {
+                    # we have a GLOB or an IO. Stringify a GLOB gives it's name
+                    my $q = *$r;
+                    $q =~ /^\*/ ? "GLOB" : "IO";
+                }
+                or do {
+                    # OK, if we don't have a GLOB what parts of
+                    # a glob will it populate.
+                    # NOTE: A glob always has a SCALAR
+                    local *glob = $r;
+                    defined *glob{ARRAY} && "ARRAY"
+                        or defined *glob{HASH} && "HASH"
+                        or defined *glob{CODE} && "CODE"
+                        or length(ref(${$r})) ? "REF" : "SCALAR";
+                }
+            }
+            : $t
+        },
+        'openhandle' => sub {
+            my $fh = shift;
+            my $rt = reftype($fh) || '';
+
+            return defined(fileno($fh)) ? $fh : undef
+                if $rt eq 'IO';
+
+            if (reftype(\$fh) eq 'GLOB') { # handle  openhandle(*DATA)
+                $fh = \(my $tmp=$fh);
+            }
+            elsif ($rt ne 'GLOB') {
+                return undef;
+            }
+
+            (tied(*$fh) or defined(fileno($fh)))
+                ? $fh : undef;
+        },
+        weaken => {
+            loaded => \&Scalar::Util::weaken,
+            not_loaded => sub { die "Scalar::Util required for weak reference support" },
+        },
+#       ^^^^^   CODE TAKEN FROM SCALAR::UTIL   ^^^^^
     },
     'MRO::Compat' => {
+#       VVVVV   CODE TAKEN FROM MRO::COMPAT   VVVVV
         'get_linear_isa' => {
             loaded     => \&mro::get_linear_isa,
             not_loaded => do {
@@ -67,6 +120,7 @@ our %dependencies = (
                 }
             },
         },
+#       ^^^^^   CODE TAKEN FROM MRO::COMPAT   ^^^^^
     },
 );
 
@@ -100,5 +154,6 @@ for my $module_name (keys %dependencies) {
     }
 }
 
+
 1;