Start setting the 'c3' mro unambiguously everywhere

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / ResultSource.pm

diff --git a/lib/DBIx/Class/ResultSource.pm b/lib/DBIx/Class/ResultSource.pm
index 204d3be..d2cc10f 100644 (file)
--- a/lib/DBIx/Class/ResultSource.pm
+++ b/lib/DBIx/Class/ResultSource.pm
@@ -3,16 +3,15 @@ package DBIx::Class::ResultSource;
 use strict;
 use warnings;
 
-use base qw/DBIx::Class::ResultSource::RowParser DBIx::Class/;
-
-use DBIx::Class::ResultSet;
-use DBIx::Class::ResultSourceHandle;
+use base 'DBIx::Class';
+__PACKAGE__->load_components(qw(
+  ResultSource::RowParser
+));
 
 use DBIx::Class::Carp;
-use DBIx::Class::_Util 'UNRESOLVABLE_CONDITION';
+use DBIx::Class::_Util qw( UNRESOLVABLE_CONDITION dbic_internal_try );
 use SQL::Abstract 'is_literal_value';
 use Devel::GlobalDestruction;
-use Try::Tiny;
 use Scalar::Util qw/blessed weaken isweak/;
 
 use namespace::clean;
@@ -403,12 +402,12 @@ sub column_info {
   if ( ! $self->_columns->{$column}{data_type}
        and ! $self->{_columns_info_loaded}
        and $self->column_info_from_storage
-       and my $stor = try { $self->storage } )
+       and my $stor = dbic_internal_try { $self->storage } )
   {
     $self->{_columns_info_loaded}++;
 
     # try for the case of storage without table
-    try {
+    dbic_internal_try {
       my $info = $stor->columns_info_for( $self->from );
       my $lc_info = { map
         { (lc $_) => $info->{$_} }
@@ -481,12 +480,12 @@ sub columns_info {
       and
     grep { ! $_->{data_type} } values %$colinfo
       and
-    my $stor = try { $self->storage }
+    my $stor = dbic_internal_try { $self->storage }
   ) {
     $self->{_columns_info_loaded}++;
 
     # try for the case of storage without table
-    try {
+    dbic_internal_try {
       my $info = $stor->columns_info_for( $self->from );
       my $lc_info = { map
         { (lc $_) => $info->{$_} }
@@ -1130,7 +1129,7 @@ sub resultset {
   $self->resultset_class->new(
     $self,
     {
-      try { %{$self->schema->default_resultset_attributes} },
+      ( dbic_internal_try { %{$self->schema->default_resultset_attributes} } ),
       %{$self->{resultset_attributes}},
     },
   );
@@ -1471,7 +1470,7 @@ sub reverse_relationship_info {
     # to use the source_names, otherwise we will use the actual classes
 
     # the schema may be partial
-    my $roundtrip_rsrc = try { $other_rsrc->related_source($other_rel) }
+    my $roundtrip_rsrc = dbic_internal_try { $other_rsrc->related_source($other_rel) }
       or next;
 
     if ($registered_source_name) {
@@ -2269,7 +2268,7 @@ sub related_source {
   # if we are not registered with a schema - just use the prototype
   # however if we do have a schema - ask for the source by name (and
   # throw in the process if all fails)
-  if (my $schema = try { $self->schema }) {
+  if (my $schema = dbic_internal_try { $self->schema }) {
     $schema->source($self->relationship_info($rel)->{source});
   }
   else {
@@ -2319,6 +2318,7 @@ relationship definitions.
 =cut
 
 sub handle {
+  require DBIx::Class::ResultSourceHandle;
   return DBIx::Class::ResultSourceHandle->new({
     source_moniker => $_[0]->source_name,
 
@@ -2359,6 +2359,7 @@ sub DESTROY {
   # which will serve as a signal to not try doing anything else
   # however beware - on older perls the exception seems randomly untrappable
   # due to some weird race condition during thread joining :(((
+  local $SIG{__DIE__} if $SIG{__DIE__};
   local $@;
   eval {
     weaken $_[0]->{schema};
@@ -2366,10 +2367,15 @@ sub DESTROY {
     # if schema is still there reintroduce ourselves with strong refs back to us
     if ($_[0]->{schema}) {
       my $srcregs = $_[0]->{schema}->source_registrations;
-      for (keys %$srcregs) {
-        next unless $srcregs->{$_};
-        $srcregs->{$_} = $_[0] if $srcregs->{$_} == $_[0];
-      }
+
+      defined $srcregs->{$_}
+        and
+      $srcregs->{$_} == $_[0]
+        and
+      $srcregs->{$_} = $_[0]
+        and
+      last
+        for keys %$srcregs;
     }
 
     1;
@@ -2377,7 +2383,10 @@ sub DESTROY {
     $global_phase_destroy = 1;
   };
 
-  return;
+  # Dummy NEXTSTATE ensuring the all temporaries on the stack are garbage
+  # collected before leaving this scope. Depending on the code above, this
+  # may very well be just a preventive measure guarding future modifications
+  undef;
 }
 
 sub STORABLE_freeze { Storable::nfreeze($_[0]->handle) }