microoptimization in Class::MOP::Instance

diff --git a/lib/Class/MOP/Instance.pm b/lib/Class/MOP/Instance.pm
index a19b4cb..3eae0c1 100644 (file)
--- a/lib/Class/MOP/Instance.pm
+++ b/lib/Class/MOP/Instance.pm
@@ -63,14 +63,14 @@ sub get_all_slots {
 
 sub is_valid_slot {
     my ($self, $slot_name) = @_;
-    exists $self->{'@!slots'}->{$slot_name} ? 1 : 0;
+    exists $self->{'@!slots'}->{$slot_name};
 }
 
 # operations on created instances
 
 sub get_slot_value {
     my ($self, $instance, $slot_name) = @_;
-    $self->is_slot_initialized($instance, $slot_name) ? $instance->{$slot_name} : undef;
+    $instance->{$slot_name};
 }
 
 sub set_slot_value {
@@ -104,7 +104,7 @@ sub deinitialize_all_slots {
 
 sub is_slot_initialized {
     my ($self, $instance, $slot_name, $value) = @_;
-    exists $instance->{$slot_name} ? 1 : 0;
+    exists $instance->{$slot_name};
 }
 
 sub weaken_slot_value {
@@ -138,8 +138,7 @@ sub inline_slot_access {
 
 sub inline_get_slot_value {
     my ($self, $instance, $slot_name) = @_;
-    'exists ' . $self->inline_slot_access($instance, $slot_name) .
-    ' ? ' . $self->inline_slot_access($instance, $slot_name) . ' : undef'
+    $self->inline_slot_access($instance, $slot_name);
 }
 
 sub inline_set_slot_value {
@@ -158,7 +157,7 @@ sub inline_deinitialize_slot {
 }
 sub inline_is_slot_initialized {
     my ($self, $instance, $slot_name) = @_;
-    "exists " . $self->inline_slot_access($instance, $slot_name) . " ? 1 : 0";
+    "exists " . $self->inline_slot_access($instance, $slot_name);
 }
 
 sub inline_weaken_slot_value {

diff --git a/t/061_instance_inline.t b/t/061_instance_inline.t
index ec35302..075d960 100644 (file)
--- a/t/061_instance_inline.t
+++ b/t/061_instance_inline.t
@@ -18,7 +18,7 @@ my $C = 'Class::MOP::Instance';
     my $value     = '$value';
 
     is($C->inline_get_slot_value($instance, $slot_name),
-      'exists $self->{"foo"} ? $self->{"foo"} : undef',
+      '$self->{"foo"}',
       '... got the right code for get_slot_value');
 
     is($C->inline_set_slot_value($instance, $slot_name, $value),
@@ -30,7 +30,7 @@ my $C = 'Class::MOP::Instance';
       '... got the right code for initialize_slot');
 
     is($C->inline_is_slot_initialized($instance, $slot_name),
-      'exists $self->{"foo"} ? 1 : 0',
+      'exists $self->{"foo"}',
       '... got the right code for get_slot_value');
 
     is($C->inline_weaken_slot_value($instance, $slot_name),
@@ -48,7 +48,7 @@ my $C = 'Class::MOP::Instance';
     my $value     = '[]';
 
     is($C->inline_get_slot_value($instance, $slot_name),
-      'exists $_[0]->{$attr_name} ? $_[0]->{$attr_name} : undef',
+      '$_[0]->{$attr_name}',
       '... got the right code for get_slot_value');
 
     is($C->inline_set_slot_value($instance, $slot_name, $value),
@@ -60,7 +60,7 @@ my $C = 'Class::MOP::Instance';
       '... got the right code for initialize_slot');
 
     is($C->inline_is_slot_initialized($instance, $slot_name),
-      'exists $_[0]->{$attr_name} ? 1 : 0',
+      'exists $_[0]->{$attr_name}',
       '... got the right code for get_slot_value');
 
     is($C->inline_weaken_slot_value($instance, $slot_name),
@@ -81,7 +81,7 @@ my $accessor_string = "sub {\n"
 is($accessor_string,
    q|sub {
 $_[0]->{$attr_name} = $_[1] if scalar @_ == 2;
-exists $_[0]->{$attr_name} ? $_[0]->{$attr_name} : undef;
+$_[0]->{$attr_name};
 }|,
     '... got the right code string for accessor');
 
@@ -91,7 +91,7 @@ my $reader_string = "sub {\n"
 
 is($reader_string,
    q|sub {
-exists $_[0]->{$attr_name} ? $_[0]->{$attr_name} : undef;
+$_[0]->{$attr_name};
 }|,
     '... got the right code string for reader');