Clarify is_exception(undef) behavior missed in 841efcb3

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

diff --git a/lib/DBIx/Class/_Util.pm b/lib/DBIx/Class/_Util.pm
index 6b8f87c..3e3b68f 100644 (file)
--- a/lib/DBIx/Class/_Util.pm
+++ b/lib/DBIx/Class/_Util.pm
@@ -54,12 +54,12 @@ BEGIN {
 use DBIx::Class::Carp '^DBIx::Class|^DBICTest';
 
 use Carp 'croak';
-use Scalar::Util qw(refaddr weaken blessed reftype);
+use Scalar::Util qw(weaken blessed reftype);
 
 use base 'Exporter';
-our @EXPORT_OK = qw(sigwarn_silencer modver_gt_or_eq fail_on_internal_wantarray refcount is_exception);
+our @EXPORT_OK = qw(sigwarn_silencer modver_gt_or_eq fail_on_internal_wantarray refcount hrefaddr is_exception);
 
-sub sigwarn_silencer {
+sub sigwarn_silencer ($) {
   my $pattern = shift;
 
   croak "Expecting a regexp" if ref $pattern ne 'Regexp';
@@ -69,7 +69,9 @@ sub sigwarn_silencer {
   return sub { &$orig_sig_warn unless $_[0] =~ $pattern };
 }
 
-sub refcount {
+sub hrefaddr ($) { sprintf '0x%x', &Scalar::Util::refaddr }
+
+sub refcount ($) {
   croak "Expecting a reference" if ! length ref $_[0];
 
   require B;
@@ -81,6 +83,12 @@ sub refcount {
 sub is_exception ($) {
   my $e = $_[0];
 
+  # this is not strictly correct - an eval setting $@ to undef
+  # is *not* the same as an eval setting $@ to ''
+  # but for the sake of simplicity assume the following for
+  # the time being
+  return 0 unless defined $e;
+
   my ($not_blank, $suberror);
   {
     local $@;
@@ -93,7 +101,7 @@ sub is_exception ($) {
   if (defined $suberror) {
     if (length (my $class = blessed($e) )) {
       carp_unique( sprintf(
-        'External exception object %s=%s(0x%x) implements partial (broken) '
+        'External exception object %s=%s(%s) implements partial (broken) '
       . 'overloading preventing it from being used in simple ($x eq $y) '
       . 'comparisons. Given Perl\'s "globally cooperative" exception '
       . 'handling this type of brokenness is extremely dangerous on '
@@ -107,7 +115,7 @@ sub is_exception ($) {
       . "as generated by Perl itself:\n\n%s\n ",
         $class,
         reftype $e,
-        refaddr $e,
+        hrefaddr $e,
         $class,
         'http://v.gd/DBIC_overload_tempfix/',
         $suberror,
@@ -126,7 +134,7 @@ sub is_exception ($) {
   return $not_blank;
 }
 
-sub modver_gt_or_eq {
+sub modver_gt_or_eq ($$) {
   my ($mod, $ver) = @_;
 
   croak "Nonsensical module name supplied"
@@ -174,8 +182,8 @@ sub modver_gt_or_eq {
       my $obj = shift;
 
       DBIx::Class::Exception->throw( sprintf (
-        "Improper use of %s(0x%x) instance in list context at %s line %d\n\n\tStacktrace starts",
-        ref($obj), refaddr($obj), (caller($cf))[1,2]
+        "Improper use of %s(%s) instance in list context at %s line %d\n\n\tStacktrace starts",
+        ref($obj), hrefaddr($obj), (caller($cf))[1,2]
       ), 'with_stacktrace');
     }