From f8e7797c12671e47664c32b6c00b5ee4c8993504 Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Fri, 27 Aug 2010 11:15:51 -0500
Subject: make the ISA special-casing more sane

---
 lib/Package/Stash.pm | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

(limited to 'lib/Package/Stash.pm')

diff --git a/lib/Package/Stash.pm b/lib/Package/Stash.pm
index 32e5d30..b990f55 100644
--- a/lib/Package/Stash.pm
+++ b/lib/Package/Stash.pm
@@ -229,17 +229,16 @@ sub get_package_symbol {
 
     my $namespace = $self->namespace;
 
-    if (!exists $namespace->{$name}) {
-        # assigning to the result of this function like
-        #   @{$stash->get_package_symbol('@ISA')} = @new_ISA
-        # makes the result not visible until the variable is explicitly
-        # accessed... in the case of @ISA, this might never happen
-        # for instance, assigning like that and then calling $obj->isa
-        # will fail. see t/005-isa.t
-        if ($opts{vivify} && $type eq 'ARRAY' && $name ne 'ISA') {
-            $self->add_package_symbol($variable, []);
+    if ($opts{vivify} && !exists $namespace->{$name}) {
+        if ($type eq 'ARRAY') {
+            $self->add_package_symbol(
+                $variable,
+                # setting our own arrayref manually loses the magicalness or
+                # something
+                $name eq 'ISA' ? () : ([])
+            );
         }
-        elsif ($opts{vivify} && $type eq 'HASH') {
+        elsif ($type eq 'HASH') {
             $self->add_package_symbol($variable, {});
         }
         else {
-- 
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