From: Peter Rabbitson <ribasushi@cpan.org>
Date: Sun, 20 Jan 2013 18:09:46 +0000 (+0100)
Subject: Revert workarounds for $@ broken during 5.13.x - mainly 1f870d5a
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=5815ffb0e34dcd74af49581f65e1d5aa71779a6b;p=dbsrgits%2FDBIx-Class-Historic.git

Revert workarounds for $@ broken during 5.13.x - mainly 1f870d5a

Luckily reason prevailed and $@ was left alone during DESTROY time,
the complexity (mnost of it compiled away) is no longer needed

More historic info can be found here: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=dbsrgits/DBIx-Class-Historic.git;a=blob_plain;f=useful_guard_objects.html;h=4678884
---

diff --git a/lib/DBIx/Class.pm b/lib/DBIx/Class.pm
index dc4123a..3518d42 100644
--- a/lib/DBIx/Class.pm
+++ b/lib/DBIx/Class.pm
@@ -40,10 +40,6 @@ BEGIN {
       # otherwise we are good
                                                                                     : 0
     ,
-
-    # There was a brief period of p5p insanity when $@ was invisible in a DESTROY
-    INVISIBLE_DOLLAR_AT => ($] >= 5.013001 and $] <= 5.013007) ? 1 : 0,
-
   };
 
   if ($] < 5.009_005) {
diff --git a/lib/DBIx/Class/Storage/TxnScopeGuard.pm b/lib/DBIx/Class/Storage/TxnScopeGuard.pm
index d8ab75c..18e2260 100644
--- a/lib/DBIx/Class/Storage/TxnScopeGuard.pm
+++ b/lib/DBIx/Class/Storage/TxnScopeGuard.pm
@@ -5,12 +5,9 @@ use warnings;
 use Try::Tiny;
 use Scalar::Util qw/weaken blessed refaddr/;
 use DBIx::Class;
-use DBIx::Class::Exception;
 use DBIx::Class::Carp;
 use namespace::clean;
 
-my ($guards_count, $compat_handler, $foreign_handler);
-
 sub new {
   my ($class, $storage) = @_;
 
@@ -34,41 +31,6 @@ sub new {
 
   bless $guard, ref $class || $class;
 
-  # install a callback carefully
-  if (DBIx::Class::_ENV_::INVISIBLE_DOLLAR_AT and !$guards_count) {
-
-    # if the thrown exception is a plain string, wrap it in our
-    # own exception class
-    # this is actually a pretty cool idea, may very well keep it
-    # after perl is fixed
-    $compat_handler ||= bless(
-      sub {
-        $@ = (blessed($_[0]) or ref($_[0]))
-          ? $_[0]
-          : bless ( { msg => $_[0] }, 'DBIx::Class::Exception')
-        ;
-        die;
-      },
-      '__TxnScopeGuard__FIXUP__',
-    );
-
-    if ($foreign_handler = $SIG{__DIE__}) {
-      $SIG{__DIE__} = bless (
-        sub {
-          # we trust the foreign handler to do whatever it wants, all we do is set $@
-          eval { $compat_handler->(@_) };
-          $foreign_handler->(@_);
-        },
-        '__TxnScopeGuard__FIXUP__',
-      );
-    }
-    else {
-      $SIG{__DIE__} = $compat_handler;
-    }
-  }
-
-  $guards_count++;
-
   $guard;
 }
 
@@ -85,29 +47,6 @@ sub commit {
 sub DESTROY {
   my $self = shift;
 
-  $guards_count--;
-
-  # don't touch unless it's ours, and there are no more of us left
-  if (
-    DBIx::Class::_ENV_::INVISIBLE_DOLLAR_AT
-      and
-    !$guards_count
-  ) {
-
-    if (ref $SIG{__DIE__} eq '__TxnScopeGuard__FIXUP__') {
-      # restore what we saved
-      if ($foreign_handler) {
-        $SIG{__DIE__} = $foreign_handler;
-      }
-      else {
-        delete $SIG{__DIE__};
-      }
-    }
-
-    # make sure we do not leak the foreign one in case it exists
-    undef $foreign_handler;
-  }
-
   return if $self->{inactivated};
 
   # if our dbh is not ours anymore, the $dbh weakref will go undef
@@ -164,7 +103,7 @@ sub DESTROY {
     }
   }
 
-  $@ = $exception unless DBIx::Class::_ENV_::INVISIBLE_DOLLAR_AT;
+  $@ = $exception;
 }
 
 1;
diff --git a/t/52leaks.t b/t/52leaks.t
index 800ec22..8f36669 100644
--- a/t/52leaks.t
+++ b/t/52leaks.t
@@ -369,9 +369,6 @@ for my $slot (keys %$weak_registry) {
     delete $weak_registry->{$slot}
       unless $cleared->{hash_merge_singleton}{$weak_registry->{$slot}{weakref}{behavior}}++;
   }
-  elsif (DBIx::Class::_ENV_::INVISIBLE_DOLLAR_AT and $slot =~ /^__TxnScopeGuard__FIXUP__/) {
-    delete $weak_registry->{$slot}
-  }
   elsif ($slot =~ /^DateTime::TimeZone/) {
     # DT is going through a refactor it seems - let it leak zones for now
     delete $weak_registry->{$slot};
diff --git a/xt/podcoverage.t b/xt/podcoverage.t
index ad93c42..c631576 100644
--- a/xt/podcoverage.t
+++ b/xt/podcoverage.t
@@ -47,11 +47,6 @@ my $exceptions = {
             MULTICREATE_DEBUG
         /],
     },
-    'DBIx::Class::Storage::TxnScopeGuard' => {
-        ignore => [qw/
-            IS_BROKEN_PERL
-        /],
-    },
     'DBIx::Class::FilterColumn' => {
         ignore => [qw/
             new