Avoid calling $self->metaclass->meta again and again

diff --git a/Changes b/Changes
index efd899f..4897d07 100644 (file)
--- a/Changes
+++ b/Changes
@@ -4,6 +4,9 @@ Revision history for Perl extension Class-MOP.
     * Class::MOP::Method
       - Add an "execute" method to invoke the body so
         we can avoid using the coderef overload (Sartak)
+    * Class::MOP::Immutable
+      - Small speedup from eliminating several method
+        calls (Sartak)
 
 0.71 Wed November 26, 2008
     * Class::MOP::Class

diff --git a/lib/Class/MOP/Immutable.pm b/lib/Class/MOP/Immutable.pm
index 357cd75..58e10c1 100644 (file)
--- a/lib/Class/MOP/Immutable.pm
+++ b/lib/Class/MOP/Immutable.pm
@@ -243,12 +243,14 @@ sub create_methods_for_immutable_metaclass {
     my $self = shift;
 
     my %methods = %DEFAULT_METHODS;
+    my $metaclass = $self->metaclass;
+    my $meta = $metaclass->meta;
 
     foreach my $read_only_method (@{$self->options->{read_only}}) {
-        my $method = $self->metaclass->meta->find_method_by_name($read_only_method);
+        my $method = $meta->find_method_by_name($read_only_method);
 
         (defined $method)
-            || confess "Could not find the method '$read_only_method' in " . $self->metaclass->name;
+            || confess "Could not find the method '$read_only_method' in " . $metaclass->name;
 
         $methods{$read_only_method} = sub {
             confess "This method is read-only" if scalar @_ > 1;
@@ -279,10 +281,10 @@ sub create_methods_for_immutable_metaclass {
     my $wrapped_methods = $self->options->{wrapped};
     
     foreach my $method_name (keys %{ $wrapped_methods }) {
-        my $method = $self->metaclass->meta->find_method_by_name($method_name);
+        my $method = $meta->find_method_by_name($method_name);
 
         (defined $method)
-            || confess "Could not find the method '$method_name' in " . $self->metaclass->name;
+            || confess "Could not find the method '$method_name' in " . $metaclass->name;
 
         my $wrapper = $wrapped_methods->{$method_name};