Revert "revert the vivication changes for now, i didn't mean to release them"

This reverts commit 44726d1abdc534e4ac6ddfc6d91d245c8dc0ebc7.

1 files changed, 23 insertions, 12 deletions

diff --git a/lib/Package/Stash.pm b/lib/Package/Stash.pm
index 32e5d30..77236d0 100644
--- a/lib/Package/Stash.pm
+++ b/lib/Package/Stash.pm
@@ -5,6 +5,7 @@ use warnings;
 
 use Carp qw(confess);
 use Scalar::Util qw(reftype);
+use Symbol;
 
 =head1 SYNOPSIS
 
@@ -229,22 +230,32 @@ 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, {});
         }
+        elsif ($type eq 'SCALAR') {
+            $self->add_package_symbol($variable);
+        }
+        elsif ($type eq 'IO') {
+            $self->add_package_symbol($variable, Symbol::geniosym);
+        }
+        elsif ($type eq 'CODE') {
+            # ignoring this case for now, since i don't know what would
+            # be useful to do here (and subs in the stash autovivify in weird
+            # ways too)
+            #$self->add_package_symbol($variable, sub {});
+        }
         else {
-            # FIXME
-            $self->add_package_symbol($variable)
+            confess "Unknown type $type in vivication";
         }
     }