From: Stevan Little <stevan.little@iinteractive.com>
Date: Sat, 27 Jan 2007 20:28:21 +0000 (+0000)
Subject: merging the immutable branch into trunk
X-Git-Tag: 0_37~4
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=c23184fc39306590f9e481d76c199020a638bb28;hp=9363ea893ea47db99690a480cb163be298e3f1d2;p=gitmo%2FClass-MOP.git

merging the immutable branch into trunk
---

diff --git a/Changes b/Changes
index 265035e..05ac1b0 100644
--- a/Changes
+++ b/Changes
@@ -5,6 +5,37 @@ Revision history for Perl extension Class-MOP.
       - default now checks the instance with defined to 
         avoid setting off bool-overloads (found by Carl Franks)
 
+0.37_002
+    * /t 
+      - bad name in a test, causing meaningless failuress. 
+        No other changes.
+
+0.37_001
+    
+    ~~ GLOBAL CHANGES ~~
+    - All attribute names are now consistent and follow Perl 6 
+      style (prefixed with the sigil, and ! as the twigil for 
+      private attrs). This should not affect any code, unless 
+      you broke encapsulation, in which case, it is your problem 
+      anyway.
+      
+    !! Class::MOP::Class::Immutable has been removed
+    
+    * Class::MOP::Method::Constructor
+      - this has been moved out of Class::MOP::Class::Immutable 
+        and is a proper subclass of Class::MOP::Method now.
+        
+    * Class::MOP::Class
+      - this module now uses Class::MOP::Immutable for the 
+        immutable transformation instead of 
+        Class::MOP::Class::Immutable.
+        
+    + Class::MOP::Immutable 
+      - this module now controls the transformation from a mutable 
+        to an immutable version of the class. Docs for this will 
+        be coming eventually.
+    
+
 0.36 Sun. Nov. 5, 2006
     * Class::MOP::Class
       - added a few 'no warnings' lines to keep annoying 
diff --git a/MANIFEST b/MANIFEST
index 12aec29..0367ffa 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -1,7 +1,7 @@
 Build.PL
 Changes
-META.yml
 Makefile.PL
+META.yml
 MANIFEST
 MANIFEST.SKIP
 README
@@ -17,12 +17,12 @@ lib/metaclass.pm
 lib/Class/MOP.pm
 lib/Class/MOP/Attribute.pm
 lib/Class/MOP/Class.pm
+lib/Class/MOP/Immutable.pm
 lib/Class/MOP/Instance.pm
 lib/Class/MOP/Method.pm
 lib/Class/MOP/Module.pm
 lib/Class/MOP/Object.pm
 lib/Class/MOP/Package.pm
-lib/Class/MOP/Class/Immutable.pm
 lib/Class/MOP/Method/Accessor.pm
 lib/Class/MOP/Method/Constructor.pm
 lib/Class/MOP/Method/Wrapped.pm
diff --git a/README b/README
index 1e32e38..a0afd06 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-Class::MOP version 0.35
+Class::MOP version 0.37
 ===========================
 
 See the individual module documentation for more information
diff --git a/examples/ArrayBasedStorage.pod b/examples/ArrayBasedStorage.pod
index bc5a19b..1c23505 100644
--- a/examples/ArrayBasedStorage.pod
+++ b/examples/ArrayBasedStorage.pod
@@ -15,7 +15,7 @@ sub new {
     my ($class, $meta, @attrs) = @_;
     my $self = $class->SUPER::new($meta, @attrs);
     my $index = 0;
-    $self->{slot_index_map} = { map { $_ => $index++ } $self->get_all_slots };
+    $self->{'%!slot_index_map'} = { map { $_ => $index++ } $self->get_all_slots };
     return $self;
 }
 
@@ -31,7 +31,7 @@ sub clone_instance {
 
 # operations on meta instance
 
-sub get_slot_index_map { (shift)->{slot_index_map} }
+sub get_slot_index_map { (shift)->{'%!slot_index_map'} }
 
 sub get_all_slots {
     my $self = shift;
@@ -40,12 +40,12 @@ sub get_all_slots {
 
 sub get_slot_value {
     my ($self, $instance, $slot_name) = @_;
-    return $instance->[ $self->{slot_index_map}->{$slot_name} ];
+    return $instance->[ $self->{'%!slot_index_map'}->{$slot_name} ];
 }
 
 sub set_slot_value {
     my ($self, $instance, $slot_name, $value) = @_;
-    $instance->[ $self->{slot_index_map}->{$slot_name} ] = $value;
+    $instance->[ $self->{'%!slot_index_map'}->{$slot_name} ] = $value;
 }
 
 sub is_slot_initialized {
diff --git a/examples/AttributesWithHistory.pod b/examples/AttributesWithHistory.pod
index 5e33d0d..6365e79 100644
--- a/examples/AttributesWithHistory.pod
+++ b/examples/AttributesWithHistory.pod
@@ -12,7 +12,7 @@ use base 'Class::MOP::Attribute';
 # this is for an extra attribute constructor 
 # option, which is to be able to create a 
 # way for the class to access the history
-AttributesWithHistory->meta->add_attribute('history_accessor' => (
+AttributesWithHistory->meta->add_attribute('$!history_accessor' => (
     reader    => 'history_accessor',
     init_arg  => 'history_accessor',
     predicate => 'has_history_accessor',
@@ -20,7 +20,7 @@ AttributesWithHistory->meta->add_attribute('history_accessor' => (
 
 # this is a place to store the actual 
 # history of the attribute
-AttributesWithHistory->meta->add_attribute('_history' => (
+AttributesWithHistory->meta->add_attribute('$!_history' => (
     accessor => '_history',
     default  => sub { {} },
 ));
diff --git a/examples/ClassEncapsulatedAttributes.pod b/examples/ClassEncapsulatedAttributes.pod
index 326f527..c869dd5 100644
--- a/examples/ClassEncapsulatedAttributes.pod
+++ b/examples/ClassEncapsulatedAttributes.pod
@@ -12,7 +12,7 @@ use base 'Class::MOP::Class';
 sub initialize { 
     (shift)->SUPER::initialize(@_, 
         # use the custom attribute metaclass here 
-        ':attribute_metaclass' => 'ClassEncapsulatedAttributes::Attribute',
+        'attribute_metaclass' => 'ClassEncapsulatedAttributes::Attribute',
     );
 }
 
diff --git a/examples/InsideOutClass.pod b/examples/InsideOutClass.pod
index e99237e..e106113 100644
--- a/examples/InsideOutClass.pod
+++ b/examples/InsideOutClass.pod
@@ -14,13 +14,13 @@ use base 'Class::MOP::Attribute';
 
 sub initialize_instance_slot {
     my ($self, $meta_instance, $instance, $params) = @_;
-    my $init_arg = $self->{init_arg};
+    my $init_arg = $self->init_arg;
     # try to fetch the init arg from the %params ...
     my $val;        
     $val = $params->{$init_arg} if exists $params->{$init_arg};
     # if nothing was in the %params, we can use the 
     # attribute's default value (if it has one)
-    if (!defined $val && defined $self->{default}) {
+    if (!defined $val && defined $self->default) {
         $val = $self->default($instance);
     }
     my $_meta_instance = $self->associated_class->get_meta_instance;
@@ -107,25 +107,25 @@ sub create_instance {
 
 sub get_slot_value {
 	my ($self, $instance, $slot_name) = @_;
-	$self->{meta}->get_package_symbol('%' . $slot_name)->{refaddr $instance};
+	$self->associated_metaclass->get_package_symbol('%' . $slot_name)->{refaddr $instance};
 }
 
 sub set_slot_value {
 	my ($self, $instance, $slot_name, $value) = @_;
-	$self->{meta}->get_package_symbol('%' . $slot_name)->{refaddr $instance} = $value;
+	$self->associated_metaclass->get_package_symbol('%' . $slot_name)->{refaddr $instance} = $value;
 }
 
 sub initialize_slot {
     my ($self, $instance, $slot_name) = @_;
-    $self->{meta}->add_package_symbol(('%' . $slot_name) => {})
-        unless $self->{meta}->has_package_symbol('%' . $slot_name); 
-    $self->{meta}->get_package_symbol('%' . $slot_name)->{refaddr $instance} = undef;
+    $self->associated_metaclass->add_package_symbol(('%' . $slot_name) => {})
+        unless $self->associated_metaclass->has_package_symbol('%' . $slot_name); 
+    $self->associated_metaclass->get_package_symbol('%' . $slot_name)->{refaddr $instance} = undef;
 }
 
 sub is_slot_initialized {
 	my ($self, $instance, $slot_name) = @_;
-	return 0 unless $self->{meta}->has_package_symbol('%' . $slot_name);
-	return exists $self->{meta}->get_package_symbol('%' . $slot_name)->{refaddr $instance} ? 1 : 0;
+	return 0 unless $self->associated_metaclass->has_package_symbol('%' . $slot_name);
+	return exists $self->associated_metaclass->get_package_symbol('%' . $slot_name)->{refaddr $instance} ? 1 : 0;
 }
 
 1;
diff --git a/lib/Class/MOP.pm b/lib/Class/MOP.pm
index 81dc70b..a4c9f04 100644
--- a/lib/Class/MOP.pm
+++ b/lib/Class/MOP.pm
@@ -11,7 +11,7 @@ use Class::MOP::Class;
 use Class::MOP::Attribute;
 use Class::MOP::Method;
 
-use Class::MOP::Class::Immutable;
+use Class::MOP::Immutable;
 
 our $VERSION   = '0.37';
 our $AUTHORITY = 'cpan:STEVAN';
@@ -69,7 +69,7 @@ our $AUTHORITY = 'cpan:STEVAN';
 ## Class::MOP::Package
 
 Class::MOP::Package->meta->add_attribute(
-    Class::MOP::Attribute->new('$:package' => (
+    Class::MOP::Attribute->new('$!package' => (
         reader   => {
             # NOTE: we need to do this in order 
             # for the instance meta-object to 
@@ -79,12 +79,12 @@ Class::MOP::Package->meta->add_attribute(
             # rather than re-produce it here            
             'name' => \&Class::MOP::Package::name
         },
-        init_arg => ':package',
+        init_arg => 'package',
     ))
 );
 
 Class::MOP::Package->meta->add_attribute(
-    Class::MOP::Attribute->new('%:namespace' => (
+    Class::MOP::Attribute->new('%!namespace' => (
         reader => {
             # NOTE:
             # we just alias the original method
@@ -104,7 +104,7 @@ Class::MOP::Package->meta->add_attribute(
 Class::MOP::Package->meta->add_method('initialize' => sub {
     my $class        = shift;
     my $package_name = shift;
-    $class->meta->new_object(':package' => $package_name, @_);  
+    $class->meta->new_object('package' => $package_name, @_);  
 });
 
 ## --------------------------------------------------------
@@ -121,7 +121,7 @@ Class::MOP::Package->meta->add_method('initialize' => sub {
 # the metaclass, isn't abstraction great :)
 
 Class::MOP::Module->meta->add_attribute(
-    Class::MOP::Attribute->new('$:version' => (
+    Class::MOP::Attribute->new('$!version' => (
         reader => {
             # NOTE:
             # we just alias the original method
@@ -142,7 +142,7 @@ Class::MOP::Module->meta->add_attribute(
 # well.  
 
 Class::MOP::Module->meta->add_attribute(
-    Class::MOP::Attribute->new('$:authority' => (
+    Class::MOP::Attribute->new('$!authority' => (
         reader => {
             # NOTE:
             # we just alias the original method
@@ -160,7 +160,7 @@ Class::MOP::Module->meta->add_attribute(
 ## Class::MOP::Class
 
 Class::MOP::Class->meta->add_attribute(
-    Class::MOP::Attribute->new('%:attributes' => (
+    Class::MOP::Attribute->new('%!attributes' => (
         reader   => {
             # NOTE: we need to do this in order 
             # for the instance meta-object to 
@@ -170,13 +170,14 @@ Class::MOP::Class->meta->add_attribute(
             # rather than re-produce it here                 
             'get_attribute_map' => \&Class::MOP::Class::get_attribute_map
         },
-        init_arg => ':attributes',
+        init_arg => 'attributes',
         default  => sub { {} }
     ))
 );
 
 Class::MOP::Class->meta->add_attribute(
-    Class::MOP::Attribute->new('%:methods' => (
+    Class::MOP::Attribute->new('%!methods' => (
+        init_arg => 'methods',
         reader   => {          
             # NOTE:
             # we just alias the original method
@@ -188,33 +189,48 @@ Class::MOP::Class->meta->add_attribute(
 );
 
 Class::MOP::Class->meta->add_attribute(
-    Class::MOP::Attribute->new('$:attribute_metaclass' => (
+    Class::MOP::Attribute->new('@!superclasses' => (
+        accessor => {
+            # NOTE:
+            # we just alias the original method
+            # rather than re-produce it here            
+            'superclasses' => \&Class::MOP::Class::superclasses
+        },
+        # NOTE:
+        # protect this from silliness 
+        init_arg => '!............( DO NOT DO THIS )............!',
+        default  => sub { \undef }
+    ))
+);
+
+Class::MOP::Class->meta->add_attribute(
+    Class::MOP::Attribute->new('$!attribute_metaclass' => (
         reader   => {          
             # NOTE:
             # we just alias the original method
             # rather than re-produce it here            
             'attribute_metaclass' => \&Class::MOP::Class::attribute_metaclass
         },        
-        init_arg => ':attribute_metaclass',
+        init_arg => 'attribute_metaclass',
         default  => 'Class::MOP::Attribute',
     ))
 );
 
 Class::MOP::Class->meta->add_attribute(
-    Class::MOP::Attribute->new('$:method_metaclass' => (
+    Class::MOP::Attribute->new('$!method_metaclass' => (
         reader   => {          
             # NOTE:
             # we just alias the original method
             # rather than re-produce it here            
             'method_metaclass' => \&Class::MOP::Class::method_metaclass
         },
-        init_arg => ':method_metaclass',
+        init_arg => 'method_metaclass',
         default  => 'Class::MOP::Method',        
     ))
 );
 
 Class::MOP::Class->meta->add_attribute(
-    Class::MOP::Attribute->new('$:instance_metaclass' => (
+    Class::MOP::Attribute->new('$!instance_metaclass' => (
         reader   => {
             # NOTE: we need to do this in order 
             # for the instance meta-object to 
@@ -224,7 +240,7 @@ Class::MOP::Class->meta->add_attribute(
             # rather than re-produce it here                  
             'instance_metaclass' => \&Class::MOP::Class::instance_metaclass
         },
-        init_arg => ':instance_metaclass',
+        init_arg => 'instance_metaclass',
         default  => 'Class::MOP::Instance',        
     ))
 );
@@ -239,8 +255,9 @@ Class::MOP::Class->meta->add_attribute(
 ## Class::MOP::Attribute
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('name' => (
-        reader => {
+    Class::MOP::Attribute->new('$!name' => (
+        init_arg => 'name',
+        reader   => {
             # NOTE: we need to do this in order 
             # for the instance meta-object to 
             # not fall into meta-circular death    
@@ -253,8 +270,9 @@ Class::MOP::Attribute->meta->add_attribute(
 );
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('associated_class' => (
-        reader => {
+    Class::MOP::Attribute->new('$!associated_class' => (
+        init_arg => 'associated_class',
+        reader   => {
             # NOTE: we need to do this in order 
             # for the instance meta-object to 
             # not fall into meta-circular death       
@@ -267,58 +285,66 @@ Class::MOP::Attribute->meta->add_attribute(
 );
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('accessor' => (
+    Class::MOP::Attribute->new('$!accessor' => (
+        init_arg  => 'accessor',
         reader    => { 'accessor'     => \&Class::MOP::Attribute::accessor     },
         predicate => { 'has_accessor' => \&Class::MOP::Attribute::has_accessor },
     ))
 );
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('reader' => (
+    Class::MOP::Attribute->new('$!reader' => (
+        init_arg  => 'reader',
         reader    => { 'reader'     => \&Class::MOP::Attribute::reader     },
         predicate => { 'has_reader' => \&Class::MOP::Attribute::has_reader },
     ))
 );
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('writer' => (
+    Class::MOP::Attribute->new('$!writer' => (
+        init_arg  => 'writer',
         reader    => { 'writer'     => \&Class::MOP::Attribute::writer     },
         predicate => { 'has_writer' => \&Class::MOP::Attribute::has_writer },
     ))
 );
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('predicate' => (
+    Class::MOP::Attribute->new('$!predicate' => (
+        init_arg  => 'predicate',
         reader    => { 'predicate'     => \&Class::MOP::Attribute::predicate     },
         predicate => { 'has_predicate' => \&Class::MOP::Attribute::has_predicate },
     ))
 );
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('clearer' => (
+    Class::MOP::Attribute->new('$!clearer' => (
+        init_arg  => 'clearer',
         reader    => { 'clearer'     => \&Class::MOP::Attribute::clearer     },
         predicate => { 'has_clearer' => \&Class::MOP::Attribute::has_clearer },
     ))
 );
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('init_arg' => (
+    Class::MOP::Attribute->new('$!init_arg' => (
+        init_arg  => 'init_arg',
         reader    => { 'init_arg'     => \&Class::MOP::Attribute::init_arg     },
         predicate => { 'has_init_arg' => \&Class::MOP::Attribute::has_init_arg },
     ))
 );
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('default' => (
+    Class::MOP::Attribute->new('$!default' => (
+        init_arg  => 'default',
         # default has a custom 'reader' method ...
         predicate => { 'has_default' => \&Class::MOP::Attribute::has_default },        
     ))
 );
 
 Class::MOP::Attribute->meta->add_attribute(
-    Class::MOP::Attribute->new('associated_methods' => (
-        reader  => { 'associated_methods' => \&Class::MOP::Attribute::associated_methods },
-        default => sub { [] } 
+    Class::MOP::Attribute->new('@!associated_methods' => (
+        init_arg => 'associated_methods',
+        reader   => { 'associated_methods' => \&Class::MOP::Attribute::associated_methods },
+        default  => sub { [] } 
     ))
 );
 
@@ -355,8 +381,9 @@ Class::MOP::Attribute->meta->add_method('clone' => sub {
 ## Class::MOP::Method
 
 Class::MOP::Method->meta->add_attribute(
-    Class::MOP::Attribute->new('body' => (
-        reader => { 'body' => \&Class::MOP::Method::body },
+    Class::MOP::Attribute->new('&!body' => (
+        init_arg => 'body',
+        reader   => { 'body' => \&Class::MOP::Method::body },
     ))
 );
 
@@ -369,29 +396,32 @@ Class::MOP::Method->meta->add_attribute(
 # practices of attributes, but we put 
 # it here for completeness
 Class::MOP::Method::Wrapped->meta->add_attribute(
-    Class::MOP::Attribute->new('modifier_table')
+    Class::MOP::Attribute->new('%!modifier_table')
 );
 
 ## --------------------------------------------------------
 ## Class::MOP::Method::Accessor
 
 Class::MOP::Method::Accessor->meta->add_attribute(
-    Class::MOP::Attribute->new('attribute' => (
-        reader => { 
+    Class::MOP::Attribute->new('$!attribute' => (
+        init_arg => 'attribute',
+        reader   => { 
             'associated_attribute' => \&Class::MOP::Method::Accessor::associated_attribute 
         },
     ))    
 );
 
 Class::MOP::Method::Accessor->meta->add_attribute(
-    Class::MOP::Attribute->new('accessor_type' => (
-        reader => { 'accessor_type' => \&Class::MOP::Method::Accessor::accessor_type },
+    Class::MOP::Attribute->new('$!accessor_type' => (
+        init_arg => 'accessor_type',
+        reader   => { 'accessor_type' => \&Class::MOP::Method::Accessor::accessor_type },
     ))    
 );
 
 Class::MOP::Method::Accessor->meta->add_attribute(
-    Class::MOP::Attribute->new('is_inline' => (
-        reader => { 'is_inline' => \&Class::MOP::Method::Accessor::is_inline },
+    Class::MOP::Attribute->new('$!is_inline' => (
+        init_arg => 'is_inline',
+        reader   => { 'is_inline' => \&Class::MOP::Method::Accessor::is_inline },
     ))    
 );
 
@@ -399,26 +429,20 @@ Class::MOP::Method::Accessor->meta->add_attribute(
 ## Class::MOP::Method::Constructor
 
 Class::MOP::Method::Constructor->meta->add_attribute(
-    Class::MOP::Attribute->new('options' => (
-        reader => { 
+    Class::MOP::Attribute->new('%!options' => (
+        init_arg => 'options',
+        reader   => { 
             'options' => \&Class::MOP::Method::Constructor::options 
         },
     ))    
 );
 
 Class::MOP::Method::Constructor->meta->add_attribute(
-    Class::MOP::Attribute->new('meta_instance' => (
-        reader => { 
-            'meta_instance' => \&Class::MOP::Method::Constructor::meta_instance 
-        },
-    ))    
-);
-
-Class::MOP::Method::Constructor->meta->add_attribute(
-    Class::MOP::Attribute->new('attributes' => (
-        reader => { 
-            'attributes' => \&Class::MOP::Method::Constructor::attributes 
-        },
+    Class::MOP::Attribute->new('$!associated_metaclass' => (
+        init_arg => 'metaclass',
+        reader   => { 
+            'associated_metaclass' => \&Class::MOP::Method::Constructor::associated_metaclass 
+        },        
     ))    
 );
 
@@ -430,11 +454,11 @@ Class::MOP::Method::Constructor->meta->add_attribute(
 # included for completeness
 
 Class::MOP::Instance->meta->add_attribute(
-    Class::MOP::Attribute->new('meta')
+    Class::MOP::Attribute->new('$!meta')
 );
 
 Class::MOP::Instance->meta->add_attribute(
-    Class::MOP::Attribute->new('slots')
+    Class::MOP::Attribute->new('@!slots')
 );
 
 ## --------------------------------------------------------
diff --git a/lib/Class/MOP/Attribute.pm b/lib/Class/MOP/Attribute.pm
index 3ff383d..2935d35 100644
--- a/lib/Class/MOP/Attribute.pm
+++ b/lib/Class/MOP/Attribute.pm
@@ -45,20 +45,20 @@ sub new {
             if exists $options{default} && ref $options{default};      
             
     bless {
-        name      => $name,
-        accessor  => $options{accessor},
-        reader    => $options{reader},
-        writer    => $options{writer},
-        predicate => $options{predicate},
-        clearer   => $options{clearer},
-        init_arg  => $options{init_arg},
-        default   => $options{default},
+        '$!name'      => $name,
+        '$!accessor'  => $options{accessor},
+        '$!reader'    => $options{reader},
+        '$!writer'    => $options{writer},
+        '$!predicate' => $options{predicate},
+        '$!clearer'   => $options{clearer},
+        '$!init_arg'  => $options{init_arg},
+        '$!default'   => $options{default},
         # keep a weakened link to the 
         # class we are associated with
-        associated_class => undef,
+        '$!associated_class' => undef,
         # and a list of the methods 
         # associated with this attr
-        associated_methods => [],
+        '@!associated_methods' => [],
     } => $class;
 }
 
@@ -77,13 +77,13 @@ sub clone {
 
 sub initialize_instance_slot {
     my ($self, $meta_instance, $instance, $params) = @_;
-    my $init_arg = $self->{init_arg};
+    my $init_arg = $self->{'$!init_arg'};
     # try to fetch the init arg from the %params ...
     my $val;        
     $val = $params->{$init_arg} if exists $params->{$init_arg};
     # if nothing was in the %params, we can use the 
     # attribute's default value (if it has one)
-    if (!defined $val && defined $self->{default}) {
+    if (!defined $val && defined $self->{'$!default'}) {
         $val = $self->default($instance);
     }
     $meta_instance->set_slot_value($instance, $self->name, $val);
@@ -93,31 +93,31 @@ sub initialize_instance_slot {
 # the next bunch of methods will get bootstrapped 
 # away in the Class::MOP bootstrapping section
 
-sub name { $_[0]->{name} }
+sub name { $_[0]->{'$!name'} }
 
-sub associated_class   { $_[0]->{associated_class}   }
-sub associated_methods { $_[0]->{associated_methods} }
+sub associated_class   { $_[0]->{'$!associated_class'}   }
+sub associated_methods { $_[0]->{'@!associated_methods'} }
 
-sub has_accessor  { defined($_[0]->{accessor})  ? 1 : 0 }
-sub has_reader    { defined($_[0]->{reader})    ? 1 : 0 }
-sub has_writer    { defined($_[0]->{writer})    ? 1 : 0 }
-sub has_predicate { defined($_[0]->{predicate}) ? 1 : 0 }
-sub has_clearer   { defined($_[0]->{clearer})   ? 1 : 0 }
-sub has_init_arg  { defined($_[0]->{init_arg})  ? 1 : 0 }
-sub has_default   { defined($_[0]->{default})   ? 1 : 0 }
+sub has_accessor  { defined($_[0]->{'$!accessor'})  ? 1 : 0 }
+sub has_reader    { defined($_[0]->{'$!reader'})    ? 1 : 0 }
+sub has_writer    { defined($_[0]->{'$!writer'})    ? 1 : 0 }
+sub has_predicate { defined($_[0]->{'$!predicate'}) ? 1 : 0 }
+sub has_clearer   { defined($_[0]->{'$!clearer'})   ? 1 : 0 }
+sub has_init_arg  { defined($_[0]->{'$!init_arg'})  ? 1 : 0 }
+sub has_default   { defined($_[0]->{'$!default'})   ? 1 : 0 }
 
-sub accessor  { $_[0]->{accessor}  } 
-sub reader    { $_[0]->{reader}    }
-sub writer    { $_[0]->{writer}    }
-sub predicate { $_[0]->{predicate} }
-sub clearer   { $_[0]->{clearer}   }
-sub init_arg  { $_[0]->{init_arg}  }
+sub accessor  { $_[0]->{'$!accessor'}  } 
+sub reader    { $_[0]->{'$!reader'}    }
+sub writer    { $_[0]->{'$!writer'}    }
+sub predicate { $_[0]->{'$!predicate'} }
+sub clearer   { $_[0]->{'$!clearer'}   }
+sub init_arg  { $_[0]->{'$!init_arg'}  }
 
 # end bootstrapped away method section.
 # (all methods below here are kept intact)
 
 sub is_default_a_coderef { 
-    ('CODE' eq (reftype($_[0]->{default}) || ''))    
+    ('CODE' eq (reftype($_[0]->{'$!default'} || $_[0]->{default}) || ''))    
 }
 
 sub default { 
@@ -127,9 +127,9 @@ sub default {
         # we pass in the instance and default
         # can return a value based on that 
         # instance. Somewhat crude, but works.
-        return $self->{default}->($instance);
+        return $self->{'$!default'}->($instance);
     }           
-    $self->{default};
+    $self->{'$!default'};
 }
 
 # slots
@@ -142,19 +142,19 @@ sub attach_to_class {
     my ($self, $class) = @_;
     (blessed($class) && $class->isa('Class::MOP::Class'))
         || confess "You must pass a Class::MOP::Class instance (or a subclass)";
-    weaken($self->{associated_class} = $class);    
+    weaken($self->{'$!associated_class'} = $class);    
 }
 
 sub detach_from_class {
     my $self = shift;
-    $self->{associated_class} = undef;        
+    $self->{'$!associated_class'} = undef;        
 }
 
 # method association 
 
 sub associate_method {
     my ($self, $method) = @_;
-    push @{$self->{associated_methods}} => $method;
+    push @{$self->{'@!associated_methods'}} => $method;
 }
 
 ## Slot management
diff --git a/lib/Class/MOP/Class.pm b/lib/Class/MOP/Class.pm
index 96d1402..bf92bf2 100644
--- a/lib/Class/MOP/Class.pm
+++ b/lib/Class/MOP/Class.pm
@@ -4,6 +4,7 @@ package Class::MOP::Class;
 use strict;
 use warnings;
 
+use Class::MOP::Immutable;
 use Class::MOP::Instance;
 use Class::MOP::Method::Wrapped;
 
@@ -28,7 +29,7 @@ sub initialize {
     my $package_name = shift;
     (defined $package_name && $package_name && !blessed($package_name))
         || confess "You must pass a package name and it cannot be blessed";    
-    $class->construct_class_instance(':package' => $package_name, @_);
+    $class->construct_class_instance('package' => $package_name, @_);
 }
 
 sub reinitialize {
@@ -37,7 +38,7 @@ sub reinitialize {
     (defined $package_name && $package_name && !blessed($package_name))
         || confess "You must pass a package name and it cannot be blessed";    
     Class::MOP::remove_metaclass_by_name($package_name);
-    $class->construct_class_instance(':package' => $package_name, @_);
+    $class->construct_class_instance('package' => $package_name, @_);
 }       
     
 # NOTE: (meta-circularity) 
@@ -49,7 +50,7 @@ sub reinitialize {
 sub construct_class_instance {
     my $class        = shift;
     my %options      = @_;
-    my $package_name = $options{':package'};
+    my $package_name = $options{'package'};
     (defined $package_name && $package_name)
         || confess "You must pass a package name";  
     # NOTE:
@@ -76,7 +77,7 @@ sub construct_class_instance {
         no strict 'refs';                
         $meta = bless { 
             # inherited from Class::MOP::Package
-            '$:package'             => $package_name, 
+            '$!package'             => $package_name, 
             
             # NOTE:
             # since the following attributes will 
@@ -86,17 +87,18 @@ sub construct_class_instance {
             # listed here for reference, because they
             # should not actually have a value associated 
             # with the slot.
-            '%:namespace'           => \undef,                
+            '%!namespace'           => \undef,                
             # inherited from Class::MOP::Module
-            '$:version'             => \undef,
-            '$:authority'           => \undef,
+            '$!version'             => \undef,
+            '$!authority'           => \undef,
             # defined in Class::MOP::Class
+            '@!superclasses'        => \undef,
             
-            '%:methods'             => {},
-            '%:attributes'          => {},            
-            '$:attribute_metaclass' => $options{':attribute_metaclass'} || 'Class::MOP::Attribute',
-            '$:method_metaclass'    => $options{':method_metaclass'}    || 'Class::MOP::Method',
-            '$:instance_metaclass'  => $options{':instance_metaclass'}  || 'Class::MOP::Instance',
+            '%!methods'             => {},
+            '%!attributes'          => {},            
+            '$!attribute_metaclass' => $options{'attribute_metaclass'} || 'Class::MOP::Attribute',
+            '$!method_metaclass'    => $options{'method_metaclass'}    || 'Class::MOP::Method',
+            '$!instance_metaclass'  => $options{'instance_metaclass'}  || 'Class::MOP::Instance',
         } => $class;
     }
     else {
@@ -259,16 +261,16 @@ sub create {
 # all these attribute readers will be bootstrapped 
 # away in the Class::MOP bootstrap section
 
-sub get_attribute_map   { $_[0]->{'%:attributes'}          }
-sub attribute_metaclass { $_[0]->{'$:attribute_metaclass'} }
-sub method_metaclass    { $_[0]->{'$:method_metaclass'}    }
-sub instance_metaclass  { $_[0]->{'$:instance_metaclass'}  }
+sub get_attribute_map   { $_[0]->{'%!attributes'}          }
+sub attribute_metaclass { $_[0]->{'$!attribute_metaclass'} }
+sub method_metaclass    { $_[0]->{'$!method_metaclass'}    }
+sub instance_metaclass  { $_[0]->{'$!instance_metaclass'}  }
 
 # FIXME:
 # this is a prime canidate for conversion to XS
 sub get_method_map {    
     my $self = shift;
-    my $map  = $self->{'%:methods'}; 
+    my $map  = $self->{'%!methods'}; 
     
     my $class_name       = $self->name;
     my $method_metaclass = $self->method_metaclass;
@@ -340,11 +342,12 @@ sub clone_instance {
     (blessed($instance))
         || confess "You can only clone instances, \$self is not a blessed instance";
     my $meta_instance = $class->get_meta_instance();
-    my $clone = $meta_instance->clone_instance($instance);        
-    foreach my $key (keys %params) {
-        next unless $meta_instance->is_valid_slot($key);
-        $meta_instance->set_slot_value($clone, $key, $params{$key});
-    }
+    my $clone = $meta_instance->clone_instance($instance);     
+    foreach my $attr ($class->compute_all_applicable_attributes()) {
+        if ($params{$attr->init_arg}) {
+            $meta_instance->set_slot_value($clone, $attr->name, $params{$attr->init_arg});                    
+        }
+    }       
     return $clone;    
 }
 
@@ -726,8 +729,38 @@ sub find_attribute_by_name {
 sub is_mutable   { 1 }
 sub is_immutable { 0 }
 
-sub make_immutable {
-    return Class::MOP::Class::Immutable->make_metaclass_immutable(@_);
+{
+    # NOTE:
+    # the immutable version of a 
+    # particular metaclass is 
+    # really class-level data so 
+    # we don't want to regenerate 
+    # it any more than we need to
+    my $IMMUTABLE_METACLASS;
+    sub make_immutable {
+        my ($self) = @_;
+        
+        $IMMUTABLE_METACLASS ||= Class::MOP::Immutable->new($self, {
+            read_only   => [qw/superclasses/],
+            cannot_call => [qw/
+                add_method
+                alias_method
+                remove_method
+                add_attribute
+                remove_attribute
+                add_package_symbol
+                remove_package_symbol            
+            /],
+            memoize     => {
+                class_precedence_list             => 'ARRAY',
+                compute_all_applicable_attributes => 'ARRAY',            
+                get_meta_instance                 => 'SCALAR',     
+                get_method_map                    => 'SCALAR',     
+            }
+        });   
+        
+        $IMMUTABLE_METACLASS->make_metaclass_immutable(@_)     
+    }
 }
 
 1;
diff --git a/lib/Class/MOP/Class/Immutable.pm b/lib/Class/MOP/Class/Immutable.pm
deleted file mode 100644
index aa9ad68..0000000
--- a/lib/Class/MOP/Class/Immutable.pm
+++ /dev/null
@@ -1,262 +0,0 @@
-
-package Class::MOP::Class::Immutable;
-
-use strict;
-use warnings;
-
-use Class::MOP::Method::Constructor;
-
-use Carp         'confess';
-use Scalar::Util 'blessed';
-
-our $VERSION   = '0.04';
-our $AUTHORITY = 'cpan:STEVAN';
-
-use base 'Class::MOP::Class';
-
-# enforce the meta-circularity here
-# and hide the Immutable part
-
-sub meta { 
-    my $self = shift;
-    # if it is not blessed, then someone is asking 
-    # for the meta of Class::MOP::Class::Immutable
-    return Class::MOP::Class->initialize($self) unless blessed($self);
-    # otherwise, they are asking for the metaclass 
-    # which has been made immutable, which is itself
-    return $self;
-}
-
-# methods which can *not* be called
-for my $meth (qw(
-    add_method
-    alias_method
-    remove_method
-    add_attribute
-    remove_attribute
-    add_package_symbol
-    remove_package_symbol
-)) {
-    no strict 'refs';
-    *{$meth} = sub {
-        confess "Cannot call method '$meth' on an immutable instance";
-    };
-}
-
-# NOTE:
-# superclasses is an accessor, so 
-# it just cannot be changed
-sub superclasses {
-    my $class = shift;
-    (!@_) || confess 'Cannot change the "superclasses" on an immmutable instance';
-    @{$class->get_package_symbol('@ISA')};    
-}
-
-# predicates
-
-sub is_mutable   { 0 }
-sub is_immutable { 1 }
-
-sub make_immutable { () }
-
-sub make_metaclass_immutable {
-    my ($class, $metaclass, %options) = @_;
-    
-    # NOTE:
-    # i really need the // (defined-or) operator here
-    $options{inline_accessors}   = 1     unless exists $options{inline_accessors};
-    $options{inline_constructor} = 1     unless exists $options{inline_constructor};
-    $options{constructor_name}   = 'new' unless exists $options{constructor_name};
-    $options{debug}              = 0     unless exists $options{debug};
-    
-    my $meta_instance = $metaclass->get_meta_instance;
-    $metaclass->{'___class_precedence_list'}             = [ $metaclass->class_precedence_list ];
-    $metaclass->{'___compute_all_applicable_attributes'} = [ $metaclass->compute_all_applicable_attributes ];           
-    $metaclass->{'___get_meta_instance'}                 = $meta_instance;    
-    $metaclass->{'___original_class'}                    = blessed($metaclass);     
-          
-    if ($options{inline_accessors}) {
-        foreach my $attr_name ($metaclass->get_attribute_list) {
-            # inline the accessors
-            $metaclass->get_attribute($attr_name)
-                      ->install_accessors(1); 
-        }      
-    }
-
-    if ($options{inline_constructor}) {       
-        my $constructor_class = $options{constructor_class} || 'Class::MOP::Method::Constructor';
-        $metaclass->add_method(
-            $options{constructor_name},
-            $constructor_class->new(
-                options       => \%options, 
-                meta_instance => $meta_instance, 
-                attributes    => $metaclass->{'___compute_all_applicable_attributes'}                
-            )
-        );
-    }
-    
-    # now cache the method map ...
-    $metaclass->{'___get_method_map'} = $metaclass->get_method_map;
-          
-    bless $metaclass => $class;
-}
-
-# cached methods
-
-sub get_meta_instance                 {   (shift)->{'___get_meta_instance'}                  }
-sub class_precedence_list             { @{(shift)->{'___class_precedence_list'}}             }
-sub compute_all_applicable_attributes { @{(shift)->{'___compute_all_applicable_attributes'}} }
-sub get_mutable_metaclass_name        {   (shift)->{'___original_class'}                     }
-sub get_method_map                    {   (shift)->{'___get_method_map'}                     }
-
-1;
-
-__END__
-
-=pod
-
-=head1 NAME 
-
-Class::MOP::Class::Immutable - An immutable version of Class::MOP::Class
-
-=head1 SYNOPSIS
-
-  package Point;
-  use metaclass;
-  
-  __PACKAGE__->meta->add_attribute('x' => (accessor => 'x', default => 10));
-  __PACKAGE__->meta->add_attribute('y' => (accessor => 'y'));
-  
-  sub new {
-      my $class = shift;
-      $class->meta->new_object(@_);
-  }
-  
-  sub clear {
-      my $self = shift;
-      $self->x(0);
-      $self->y(0);    
-  }
-  
-  __PACKAGE__->meta->make_immutable();  # close the class
-
-=head1 DESCRIPTION
-
-Class::MOP offers many benefits to object oriented development but it 
-comes at a cost. Pure Class::MOP classes can be quite a bit slower than 
-the typical hand coded Perl classes. This is because just about 
-I<everything> is recalculated on the fly, and nothing is cached. The 
-reason this is so, is because Perl itself allows you to modify virtually
-everything at runtime. Class::MOP::Class::Immutable offers an alternative 
-to this.
-
-By making your class immutable, you are promising that you will not 
-modify your inheritence tree or the attributes of any classes in 
-that tree. Since runtime modifications like this are fairly atypical
-(and usually recomended against), this is not usally a very hard promise 
-to make. For making this promise you are given a wide range of 
-optimization options which bring speed close to (and sometimes above) 
-those of typical hand coded Perl. 
-
-=head1 METHODS
-
-=over 4
-
-=item B<meta>
-
-This will return a B<Class::MOP::Class> instance which is related 
-to this class.
-
-=back
-
-=head2 Introspection and Construction
-
-=over 4
-
-=item B<make_metaclass_immutable>
-
-The arguments to C<Class::MOP::Class::make_immutable> are passed 
-to this method, which 
-
-=over 4
-
-=item I<inline_accessors (Bool)>
-
-=item I<inline_constructor (Bool)>
-
-=item I<debug (Bool)>
-
-=item I<constructor_name (Str)>
-
-=back
-
-=item B<is_immutable>
-
-=item B<is_mutable>
-
-=item B<make_immutable>
-
-=item B<get_mutable_metaclass_name>
-
-=back
-
-=head2 Methods which will die if you touch them.
-
-=over 4
-
-=item B<add_attribute>
-
-=item B<add_method>
-
-=item B<add_package_symbol>
-
-=item B<alias_method>
-
-=item B<remove_attribute>
-
-=item B<remove_method>
-
-=item B<remove_package_symbol>
-
-=back
-
-=head2 Methods which work slightly differently.
-
-=over 4
-
-=item B<superclasses>
-
-This method becomes read-only in an immutable class.
-
-=back
-
-=head2 Cached methods
-
-=over 4
-
-=item B<class_precedence_list>
-
-=item B<compute_all_applicable_attributes>
-
-=item B<get_meta_instance>
-
-=item B<get_method_map>
-
-=back
-
-=head1 AUTHORS
-
-Stevan Little E<lt>stevan@iinteractive.comE<gt>
-
-Yuval Kogman E<lt>nothingmuch@woobling.comE<gt>
-
-=head1 COPYRIGHT AND LICENSE
-
-Copyright 2006 by Infinity Interactive, Inc.
-
-L<http://www.iinteractive.com>
-
-This library is free software; you can redistribute it and/or modify
-it under the same terms as Perl itself. 
-
-=cut
diff --git a/lib/Class/MOP/Immutable.pm b/lib/Class/MOP/Immutable.pm
new file mode 100644
index 0000000..1af082a
--- /dev/null
+++ b/lib/Class/MOP/Immutable.pm
@@ -0,0 +1,236 @@
+
+package Class::MOP::Immutable;
+
+use strict;
+use warnings;
+
+use Class::MOP::Method::Constructor;
+
+use Carp         'confess';
+use Scalar::Util 'blessed';
+
+our $VERSION   = '0.01';
+our $AUTHORITY = 'cpan:STEVAN';
+
+sub new { 
+    my ($class, $metaclass, $options) = @_;
+    
+    my $self = bless {
+        '$!metaclass'           => $metaclass,
+        '%!options'             => $options,
+        '$!immutable_metaclass' => undef,
+    } => $class;
+    
+    # NOTE:
+    # we initialize the immutable 
+    # version of the metaclass here
+    $self->create_immutable_metaclass;
+    
+    return $self;
+}
+
+sub immutable_metaclass { (shift)->{'$!immutable_metaclass'} }
+sub metaclass           { (shift)->{'$!metaclass'}           }
+sub options             { (shift)->{'%!options'}             }
+
+sub create_immutable_metaclass {
+    my $self = shift;
+
+    # NOTE:
+    # The immutable version of the 
+    # metaclass is just a anon-class
+    # which shadows the methods 
+    # appropriately
+    $self->{'$!immutable_metaclass'} = Class::MOP::Class->create_anon_class(
+        superclasses => [ blessed($self->metaclass) ],
+        methods      => $self->create_methods_for_immutable_metaclass,
+    ); 
+}
+
+my %DEFAULT_METHODS = (
+    meta => sub { 
+        my $self = shift;
+        # if it is not blessed, then someone is asking 
+        # for the meta of Class::MOP::Class::Immutable
+        return Class::MOP::Class->initialize($self) unless blessed($self);
+        # otherwise, they are asking for the metaclass 
+        # which has been made immutable, which is itself
+        return $self;
+    },
+    is_mutable     => sub {  0  },
+    is_immutable   => sub {  1  },
+    make_immutable => sub { ( ) },
+);
+
+# NOTE:
+# this will actually convert the 
+# existing metaclass to an immutable 
+# version of itself
+sub make_metaclass_immutable {
+    my ($self, $metaclass, %options) = @_;
+    
+    $options{inline_accessors}   = 1     unless exists $options{inline_accessors};
+    $options{inline_constructor} = 1     unless exists $options{inline_constructor};
+    $options{inline_destructor}  = 0     unless exists $options{inline_destructor};    
+    $options{constructor_name}   = 'new' unless exists $options{constructor_name};
+    $options{debug}              = 0     unless exists $options{debug};    
+    
+    if ($options{inline_accessors}) {
+        foreach my $attr_name ($metaclass->get_attribute_list) {
+            # inline the accessors
+            $metaclass->get_attribute($attr_name)
+                      ->install_accessors(1); 
+        }      
+    }
+
+    if ($options{inline_constructor}) {       
+        my $constructor_class = $options{constructor_class} || 'Class::MOP::Method::Constructor';
+        
+        $metaclass->add_method(
+            $options{constructor_name},
+            $constructor_class->new(
+                options   => \%options,           
+                metaclass => $metaclass,                
+            )
+        ) unless $metaclass->has_method($options{constructor_name});
+    }    
+    
+    if ($options{inline_destructor}) {       
+        (exists $options{destructor_class})
+            || confess "The 'inline_destructor' option is present, but "
+                     . "no destructor class was specified";
+        
+        my $destructor_class = $options{destructor_class};
+        
+        my $destructor = $destructor_class->new(
+            options   => \%options,
+            metaclass => $metaclass,
+        );
+        
+        $metaclass->add_method('DESTROY' => $destructor) 
+            # NOTE:
+            # we allow the destructor to determine 
+            # if it is needed or not, it can perform
+            # all sorts of checks because it has the 
+            # metaclass instance 
+            if $destructor->is_needed;
+    }    
+    
+    my $memoized_methods = $self->options->{memoize};
+    foreach my $method_name (keys %{$memoized_methods}) {
+        my $type = $memoized_methods->{$method_name};
+    
+        ($metaclass->can($method_name))
+            || confess "Could not find the method '$method_name' in " . $metaclass->name;        
+    
+        my $memoized_method;
+        if ($type eq 'ARRAY') {
+            $metaclass->{'___' . $method_name} = [ $metaclass->$method_name ];
+        }
+        elsif ($type eq 'HASH') {
+            $metaclass->{'___' . $method_name} = { $metaclass->$method_name };                       
+        }
+        elsif ($type eq 'SCALAR') {
+            $metaclass->{'___' . $method_name} = $metaclass->$method_name;
+        }
+    }  
+    $metaclass->{'___original_class'} = blessed($metaclass);    
+
+    bless $metaclass => $self->immutable_metaclass->name;
+}
+
+sub create_methods_for_immutable_metaclass {
+    my $self = shift;
+    
+    my %methods = %DEFAULT_METHODS;
+    
+    foreach my $read_only_method (@{$self->options->{read_only}}) {
+        my $method = $self->metaclass->meta->find_method_by_name($read_only_method);
+        
+        (defined $method)
+            || confess "Could not find the method '$read_only_method' in " . $self->metaclass->name;
+        
+        $methods{$read_only_method} = sub {
+            confess "This method is read-only" if scalar @_ > 1;
+            goto &{$method->body}
+        };
+    }
+    
+    foreach my $cannot_call_method (@{$self->options->{cannot_call}}) {
+        $methods{$cannot_call_method} = sub {
+            confess "This method ($cannot_call_method) cannot be called on an immutable instance";
+        };
+    }  
+    
+    my $memoized_methods = $self->options->{memoize};
+    
+    foreach my $method_name (keys %{$memoized_methods}) {
+        my $type = $memoized_methods->{$method_name};
+        if ($type eq 'ARRAY') {
+            $methods{$method_name} = sub { @{$_[0]->{'___' . $method_name}} };
+        }
+        elsif ($type eq 'HASH') {
+            $methods{$method_name} = sub { %{$_[0]->{'___' . $method_name}} };
+        }
+        elsif ($type eq 'SCALAR') {
+            $methods{$method_name} = sub { $_[0]->{'___' . $method_name} };
+        }        
+    }       
+    
+    $methods{get_mutable_metaclass_name} = sub { (shift)->{'___original_class'} };     
+    
+    return \%methods;
+}
+
+1;
+
+__END__
+
+=pod
+
+=head1 NAME 
+
+Class::MOP::Immutable - A class to transform Class::MOP::Class metaclasses
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 METHODS
+
+=over 4
+
+=item B<new>
+ 
+=item B<options>
+
+=item B<metaclass>
+
+=item B<immutable_metaclass>
+
+=back
+
+=over 4
+
+=item B<create_immutable_metaclass>
+
+=item B<create_methods_for_immutable_metaclass>
+
+=item B<make_metaclass_immutable>
+
+=back
+
+=head1 AUTHORS
+
+Stevan Little E<lt>stevan@iinteractive.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2006 by Infinity Interactive, Inc.
+
+L<http://www.iinteractive.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself. 
+
+=cut
diff --git a/lib/Class/MOP/Instance.pm b/lib/Class/MOP/Instance.pm
index b2e406a..89ea9c8 100644
--- a/lib/Class/MOP/Instance.pm
+++ b/lib/Class/MOP/Instance.pm
@@ -17,7 +17,7 @@ sub meta {
 sub new { 
     my ($class, $meta, @attrs) = @_;
     my @slots = map { $_->slots } @attrs;
-    bless {
+    my $instance = bless {
         # NOTE:
         # I am not sure that it makes
         # sense to pass in the meta
@@ -28,11 +28,17 @@ sub new {
         # which is *probably* a safe
         # assumption,.. but you can 
         # never tell <:)
-        meta  => $meta,
-        slots => { map { $_ => undef } @slots },
+        '$!meta'  => $meta,
+        '@!slots' => { map { $_ => undef } @slots },
     } => $class; 
+    
+    weaken($instance->{'$!meta'});
+    
+    return $instance;
 }
 
+sub associated_metaclass { (shift)->{'$!meta'} }
+
 sub create_instance {
     my $self = shift;
     $self->bless_instance_structure({});
@@ -40,7 +46,7 @@ sub create_instance {
 
 sub bless_instance_structure {
     my ($self, $instance_structure) = @_;
-    bless $instance_structure, $self->{meta}->name;
+    bless $instance_structure, $self->associated_metaclass->name;
 }
 
 sub clone_instance {
@@ -52,12 +58,12 @@ sub clone_instance {
 
 sub get_all_slots {
     my $self = shift;
-    return keys %{$self->{slots}};
+    return keys %{$self->{'@!slots'}};
 }
 
 sub is_valid_slot {
     my ($self, $slot_name) = @_;
-    exists $self->{slots}->{$slot_name} ? 1 : 0;
+    exists $self->{'@!slots'}->{$slot_name} ? 1 : 0;
 }
 
 # operations on created instances
@@ -238,6 +244,8 @@ we will add then when we need them basically.
 
 =over 4
 
+=item B<associated_metaclass>
+
 =item B<get_all_slots>
 
 This will return the current list of slots based on what was 
diff --git a/lib/Class/MOP/Method.pm b/lib/Class/MOP/Method.pm
index 4ba0566..55b22fb 100644
--- a/lib/Class/MOP/Method.pm
+++ b/lib/Class/MOP/Method.pm
@@ -16,7 +16,7 @@ use base 'Class::MOP::Object';
 # NOTE:
 # if poked in the right way, 
 # they should act like CODE refs.
-use overload '&{}' => sub { $_[0]->{body} }, fallback => 1;
+use overload '&{}' => sub { $_[0]->body }, fallback => 1;
 
 # introspection
 
@@ -33,13 +33,13 @@ sub wrap {
     ('CODE' eq (reftype($code) || ''))
         || confess "You must supply a CODE reference to bless, not (" . ($code || 'undef') . ")";
     bless { 
-        body => $code 
+        '&!body' => $code 
     } => blessed($class) || $class;
 }
 
 ## accessors
 
-sub body { (shift)->{body} }
+sub body { (shift)->{'&!body'} }
 
 # TODO - add associated_class
 
@@ -51,7 +51,7 @@ sub body { (shift)->{body} }
 # This gets the package stash name 
 # associated with the actual CODE-ref
 sub package_name { 
-	my $code = (shift)->{body};
+	my $code = (shift)->body;
 	svref_2object($code)->GV->STASH->NAME;
 }
 
@@ -61,7 +61,7 @@ sub package_name {
 # with. This gets the name associated
 # with the actual CODE-ref
 sub name { 
-	my $code = (shift)->{body};
+	my $code = (shift)->body;
 	svref_2object($code)->GV->NAME;
 }
 
diff --git a/lib/Class/MOP/Method/Accessor.pm b/lib/Class/MOP/Method/Accessor.pm
index d55e233..1c03e31 100644
--- a/lib/Class/MOP/Method/Accessor.pm
+++ b/lib/Class/MOP/Method/Accessor.pm
@@ -27,17 +27,17 @@ sub new {
         
     my $self = bless {
         # from our superclass
-        body          => undef,
+        '&!body'          => undef,
         # specific to this subclass
-        attribute     => $options{attribute},
-        is_inline     => ($options{is_inline} || 0),
-        accessor_type => $options{accessor_type},        
+        '$!attribute'     => $options{attribute},
+        '$!is_inline'     => ($options{is_inline} || 0),
+        '$!accessor_type' => $options{accessor_type},        
     } => $class;
     
     # we don't want this creating 
     # a cycle in the code, if not 
     # needed
-    weaken($self->{attribute});
+    weaken($self->{'$!attribute'});
     
     $self->intialize_body;
     
@@ -46,9 +46,9 @@ sub new {
 
 ## accessors
 
-sub associated_attribute { (shift)->{attribute}     }
-sub accessor_type        { (shift)->{accessor_type} }
-sub is_inline            { (shift)->{is_inline}     }
+sub associated_attribute { (shift)->{'$!attribute'}     }
+sub accessor_type        { (shift)->{'$!accessor_type'} }
+sub is_inline            { (shift)->{'$!is_inline'}     }
 
 ## factory 
 
@@ -62,7 +62,7 @@ sub intialize_body {
         ($self->is_inline ? 'inline' : ())
     );
     
-    eval { $self->{body} = $self->$method_name() };
+    eval { $self->{'&!body'} = $self->$method_name() };
     die $@ if $@;
 }
 
diff --git a/lib/Class/MOP/Method/Constructor.pm b/lib/Class/MOP/Method/Constructor.pm
index 08812bc..7e389db 100644
--- a/lib/Class/MOP/Method/Constructor.pm
+++ b/lib/Class/MOP/Method/Constructor.pm
@@ -18,41 +18,44 @@ sub new {
         
     (exists $options{options} && ref $options{options} eq 'HASH')
         || confess "You must pass a hash of options"; 
-        
-    (blessed $options{meta_instance} && $options{meta_instance}->isa('Class::MOP::Instance'))
-        || confess "You must supply a meta-instance";        
-    
-    (exists $options{attributes} && ref $options{attributes} eq 'ARRAY')
-        || confess "You must pass an array of options";        
-        
-    (blessed($_) && $_->isa('Class::MOP::Attribute'))
-        || confess "You must supply a list of attributes which is a 'Class::MOP::Attribute' instance"
-            for @{$options{attributes}};    
     
     my $self = bless {
         # from our superclass
-        body          => undef,
+        '&!body'          => undef,
         # specific to this subclass
-        options       => $options{options},
-        meta_instance => $options{meta_instance},
-        attributes    => $options{attributes},        
+        '%!options'       => $options{options},
+        '$!meta_instance' => $options{metaclass}->get_meta_instance,
+        '@!attributes'    => [ $options{metaclass}->compute_all_applicable_attributes ], 
+        # ...
+        '$!associated_metaclass' => $options{metaclass},
     } => $class;
 
     # we don't want this creating 
     # a cycle in the code, if not 
     # needed
-    weaken($self->{meta_instance});
+#    weaken($self->{'$!meta_instance'});
+    weaken($self->{'$!associated_metaclass'});    
 
     $self->intialize_body;
 
     return $self;    
 }
 
+## predicates
+
+# NOTE:
+# if it is blessed into this class, 
+# then it is always inlined, that is 
+# pretty much what this class is for.
+sub is_inline { 1 }
+
 ## accessors 
 
-sub options       { (shift)->{options}       }
-sub meta_instance { (shift)->{meta_instance} }
-sub attributes    { (shift)->{attributes}    }
+sub options       { (shift)->{'%!options'}       }
+sub meta_instance { (shift)->{'$!meta_instance'} }
+sub attributes    { (shift)->{'@!attributes'}    }
+
+sub associated_metaclass { (shift)->{'$!associated_metaclass'} }
 
 ## method
 
@@ -85,7 +88,7 @@ sub intialize_body {
         $code = eval $source;
         confess "Could not eval the constructor :\n\n$source\n\nbecause :\n\n$@" if $@;
     }
-    $self->{body} = $code;
+    $self->{'&!body'} = $code;
 }
 
 sub _generate_slot_initializer {
@@ -142,10 +145,14 @@ Class::MOP::Method::Constructor - Method Meta Object for constructors
 
 =item B<new>
 
+=item B<is_inline>
+
 =item B<attributes>
 
 =item B<meta_instance>
 
+=item B<associated_metaclass>
+
 =item B<options>
 
 =item B<intialize_body>
diff --git a/lib/Class/MOP/Method/Wrapped.pm b/lib/Class/MOP/Method/Wrapped.pm
index 0aa4a3b..ba1451b 100644
--- a/lib/Class/MOP/Method/Wrapped.pm
+++ b/lib/Class/MOP/Method/Wrapped.pm
@@ -85,27 +85,27 @@ sub wrap {
 	};
 	$_build_wrapped_method->($modifier_table);
 	my $method = $class->SUPER::wrap(sub { $modifier_table->{cache}->(@_) });	
-	$method->{modifier_table} = $modifier_table;
+	$method->{'%!modifier_table'} = $modifier_table;
 	$method;  
 }
 
 sub get_original_method {
 	my $code = shift; 
-    $code->{modifier_table}->{orig};
+    $code->{'%!modifier_table'}->{orig};
 }
 
 sub add_before_modifier {
 	my $code     = shift;
 	my $modifier = shift;
-	unshift @{$code->{modifier_table}->{before}} => $modifier;
-	$_build_wrapped_method->($code->{modifier_table});
+	unshift @{$code->{'%!modifier_table'}->{before}} => $modifier;
+	$_build_wrapped_method->($code->{'%!modifier_table'});
 }
 
 sub add_after_modifier {
 	my $code     = shift;
 	my $modifier = shift;
-	push @{$code->{modifier_table}->{after}} => $modifier;
-	$_build_wrapped_method->($code->{modifier_table});	
+	push @{$code->{'%!modifier_table'}->{after}} => $modifier;
+	$_build_wrapped_method->($code->{'%!modifier_table'});	
 }
 
 {
@@ -126,12 +126,12 @@ sub add_after_modifier {
 	sub add_around_modifier {
 		my $code     = shift;
 		my $modifier = shift;
-		unshift @{$code->{modifier_table}->{around}->{methods}} => $modifier;		
-		$code->{modifier_table}->{around}->{cache} = $compile_around_method->(
-			@{$code->{modifier_table}->{around}->{methods}},
-			$code->{modifier_table}->{orig}->body
+		unshift @{$code->{'%!modifier_table'}->{around}->{methods}} => $modifier;		
+		$code->{'%!modifier_table'}->{around}->{cache} = $compile_around_method->(
+			@{$code->{'%!modifier_table'}->{around}->{methods}},
+			$code->{'%!modifier_table'}->{orig}->body
 		);
-		$_build_wrapped_method->($code->{modifier_table});		
+		$_build_wrapped_method->($code->{'%!modifier_table'});		
 	}	
 }
 
diff --git a/lib/Class/MOP/Package.pm b/lib/Class/MOP/Package.pm
index 2e507fe..912072b 100644
--- a/lib/Class/MOP/Package.pm
+++ b/lib/Class/MOP/Package.pm
@@ -28,7 +28,7 @@ sub initialize {
     # until we can bootstrap it
     no strict 'refs';
     return bless { 
-        '$:package'   => $package_name,
+        '$!package'   => $package_name,
         # NOTE:
         # because of issues with the Perl API 
         # to the typeglob in some versions, we 
@@ -36,7 +36,7 @@ sub initialize {
         # reference to the hash in the accessor. 
         # Ideally we could just store a ref and 
         # it would Just Work, but oh well :\
-        '%:namespace' => \undef,
+        '%!namespace' => \undef,
     } => $class;
 }
 
@@ -46,7 +46,7 @@ sub initialize {
 # all these attribute readers will be bootstrapped 
 # away in the Class::MOP bootstrap section
 
-sub name      { $_[0]->{'$:package'}   }
+sub name      { $_[0]->{'$!package'}   }
 sub namespace { 
     # NOTE:
     # because of issues with the Perl API 
diff --git a/lib/metaclass.pm b/lib/metaclass.pm
index a66b323..e1bd16a 100644
--- a/lib/metaclass.pm
+++ b/lib/metaclass.pm
@@ -15,7 +15,7 @@ use Class::MOP;
 sub import {
     shift;
     my $metaclass;
-    if (!defined($_[0]) || $_[0] =~ /^\:(attribute|method|instance)_metaclass/) {
+    if (!defined($_[0]) || $_[0] =~ /^(attribute|method|instance)_metaclass/) {
         $metaclass = 'Class::MOP::Class';
     }
     else {
@@ -62,16 +62,16 @@ metaclass - a pragma for installing and using Class::MOP metaclasses
   # and custom attribute and method
   # metaclasses
   use metaclass 'MyMetaClass' => (
-      ':attribute_metaclass' => 'MyAttributeMetaClass',
-      ':method_metaclass'    => 'MyMethodMetaClass',    
+      'attribute_metaclass' => 'MyAttributeMetaClass',
+      'method_metaclass'    => 'MyMethodMetaClass',    
   );
 
   # ... or just specify custom attribute
   # and method classes, and Class::MOP::Class
   # is the assumed metaclass
   use metaclass (
-      ':attribute_metaclass' => 'MyAttributeMetaClass',
-      ':method_metaclass'    => 'MyMethodMetaClass',    
+      'attribute_metaclass' => 'MyAttributeMetaClass',
+      'method_metaclass'    => 'MyMethodMetaClass',    
   );
 
 =head1 DESCRIPTION
diff --git a/t/000_load.t b/t/000_load.t
index c7ba2c5..324ff6b 100644
--- a/t/000_load.t
+++ b/t/000_load.t
@@ -10,7 +10,7 @@ BEGIN {
     use_ok('Class::MOP::Package');    
     use_ok('Class::MOP::Module');        
     use_ok('Class::MOP::Class');
-    use_ok('Class::MOP::Class::Immutable');    
+    use_ok('Class::MOP::Immutable');    
     use_ok('Class::MOP::Attribute');
     use_ok('Class::MOP::Method');  
     use_ok('Class::MOP::Method::Wrapped');                
@@ -22,6 +22,8 @@ BEGIN {
 
 # make sure we are tracking metaclasses correctly
 
+my $CLASS_MOP_CLASS_IMMUTABLE_CLASS = 'Class::MOP::Class::__ANON__::SERIAL::1';
+
 my %METAS = (
     'Class::MOP::Attribute'           => Class::MOP::Attribute->meta, 
     'Class::MOP::Method::Accessor'    => Class::MOP::Method::Accessor->meta,  
@@ -32,14 +34,17 @@ my %METAS = (
     'Class::MOP::Method'              => Class::MOP::Method->meta,  
     'Class::MOP::Method::Wrapped'     => Class::MOP::Method::Wrapped->meta,      
     'Class::MOP::Instance'            => Class::MOP::Instance->meta,   
-    'Class::MOP::Object'              => Class::MOP::Object->meta,          
+    'Class::MOP::Object'              => Class::MOP::Object->meta,  
 );
 
 ok($_->is_immutable(), '... ' . $_->name . ' is immutable') for values %METAS;
 
 is_deeply(
     { Class::MOP::get_all_metaclasses },
-    \%METAS,
+    {
+        %METAS,
+        $CLASS_MOP_CLASS_IMMUTABLE_CLASS => $CLASS_MOP_CLASS_IMMUTABLE_CLASS->meta
+    },
     '... got all the metaclasses');
 
 is_deeply(
@@ -47,6 +52,7 @@ is_deeply(
     [ 
         Class::MOP::Attribute->meta, 
         Class::MOP::Class->meta, 
+        $CLASS_MOP_CLASS_IMMUTABLE_CLASS->meta,         
         Class::MOP::Instance->meta,         
         Class::MOP::Method->meta,
         Class::MOP::Method::Accessor->meta,
@@ -54,13 +60,13 @@ is_deeply(
         Class::MOP::Method::Wrapped->meta,
         Class::MOP::Module->meta, 
         Class::MOP::Object->meta,          
-        Class::MOP::Package->meta,              
+        Class::MOP::Package->meta,             
     ],
     '... got all the metaclass instances');
 
 is_deeply(
     [ sort { $a cmp $b } Class::MOP::get_all_metaclass_names() ],
-    [ qw/
+    [ sort qw/
         Class::MOP::Attribute      
         Class::MOP::Class
         Class::MOP::Instance
@@ -71,7 +77,7 @@ is_deeply(
         Class::MOP::Module  
         Class::MOP::Object        
         Class::MOP::Package                      
-    / ],
+    /,  $CLASS_MOP_CLASS_IMMUTABLE_CLASS  ],
     '... got all the metaclass names');
     
 is_deeply(
@@ -79,6 +85,7 @@ is_deeply(
     [ 
        "Class::MOP::Attribute-"           . $Class::MOP::Attribute::VERSION           . "-cpan:STEVAN",  
        "Class::MOP::Class-"               . $Class::MOP::Class::VERSION               . "-cpan:STEVAN",
+       $CLASS_MOP_CLASS_IMMUTABLE_CLASS,
        "Class::MOP::Instance-"            . $Class::MOP::Instance::VERSION            . "-cpan:STEVAN",
        "Class::MOP::Method-"              . $Class::MOP::Method::VERSION              . "-cpan:STEVAN",
        "Class::MOP::Method::Accessor-"    . $Class::MOP::Method::Accessor::VERSION    . "-cpan:STEVAN",                 
diff --git a/t/006_new_and_clone_metaclasses.t b/t/006_new_and_clone_metaclasses.t
index 6e972d9..b30e03b 100644
--- a/t/006_new_and_clone_metaclasses.t
+++ b/t/006_new_and_clone_metaclasses.t
@@ -15,7 +15,7 @@ BEGIN {
 my $meta = Class::MOP::Class->meta();
 isa_ok($meta, 'Class::MOP::Class');
 
-my $new_meta = $meta->new_object(':package' => 'Class::MOP::Class');
+my $new_meta = $meta->new_object('package' => 'Class::MOP::Class');
 isa_ok($new_meta, 'Class::MOP::Class');
 is($new_meta, $meta, '... it still creates the singleton');
 
@@ -33,7 +33,7 @@ is($cloned_meta, $meta, '... it creates the singleton even if you try to clone i
 my $foo_meta = Foo->meta;
 isa_ok($foo_meta, 'Class::MOP::Class');
 
-is($meta->new_object(':package' => 'Foo'), $foo_meta, '... got the right Foo->meta singleton');
+is($meta->new_object('package' => 'Foo'), $foo_meta, '... got the right Foo->meta singleton');
 is($meta->clone_object($foo_meta), $foo_meta, '... cloning got the right Foo->meta singleton');
     
 # make sure subclassed of Class::MOP::Class do the right thing
@@ -46,7 +46,7 @@ is($meta->clone_object($foo_meta), $foo_meta, '... cloning got the right Foo->me
 my $my_meta = MyMetaClass->meta;
 isa_ok($my_meta, 'Class::MOP::Class');
 
-my $new_my_meta = $my_meta->new_object(':package' => 'MyMetaClass');
+my $new_my_meta = $my_meta->new_object('package' => 'MyMetaClass');
 isa_ok($new_my_meta, 'Class::MOP::Class');
 is($new_my_meta, $my_meta, '... even subclasses still create the singleton');
 
@@ -54,12 +54,12 @@ my $cloned_my_meta = $meta->clone_object($my_meta);
 isa_ok($cloned_my_meta, 'Class::MOP::Class');
 is($cloned_my_meta, $my_meta, '... and subclasses creates the singleton even if you try to clone it');
 
-is($my_meta->new_object(':package' => 'Foo'), $foo_meta, '... got the right Foo->meta singleton (w/subclass)');
+is($my_meta->new_object('package' => 'Foo'), $foo_meta, '... got the right Foo->meta singleton (w/subclass)');
 is($meta->clone_object($foo_meta), $foo_meta, '... cloning got the right Foo->meta singleton (w/subclass)');
 
 # now create a metaclass for real
 
-my $bar_meta = $my_meta->new_object(':package' => 'Bar');
+my $bar_meta = $my_meta->new_object('package' => 'Bar');
 isa_ok($bar_meta, 'Class::MOP::Class');
 
 is($bar_meta->name, 'Bar', '... got the right name for the Bar metaclass');
@@ -78,7 +78,7 @@ my $baz_meta = Baz->meta;
 isa_ok($baz_meta, 'Class::MOP::Class');
 isa_ok($baz_meta, 'MyMetaClass');
 
-is($my_meta->new_object(':package' => 'Baz'), $baz_meta, '... got the right Baz->meta singleton');
+is($my_meta->new_object('package' => 'Baz'), $baz_meta, '... got the right Baz->meta singleton');
 is($my_meta->clone_object($baz_meta), $baz_meta, '... cloning got the right Baz->meta singleton');
 
 $baz_meta->superclasses('Bar');
diff --git a/t/010_self_introspection.t b/t/010_self_introspection.t
index 7f42a40..fba4d05 100644
--- a/t/010_self_introspection.t
+++ b/t/010_self_introspection.t
@@ -3,7 +3,7 @@
 use strict;
 use warnings;
 
-use Test::More tests => 189;
+use Test::More tests => 191;
 use Test::Exception;
 
 BEGIN {
@@ -134,20 +134,22 @@ foreach my $non_method_name (qw(
 # check for the right attributes
 
 my @class_mop_package_attributes = (
-    '$:package', 
-    '%:namespace',
+    '$!package', 
+    '%!namespace',
 );
 
 my @class_mop_module_attributes = (
-    '$:version', '$:authority'
+    '$!version', 
+    '$!authority'
 );
 
 my @class_mop_class_attributes = (
-    '%:methods', 
-    '%:attributes', 
-    '$:attribute_metaclass', 
-    '$:method_metaclass', 
-    '$:instance_metaclass'
+    '@!superclasses',
+    '%!methods', 
+    '%!attributes', 
+    '$!attribute_metaclass', 
+    '$!method_metaclass', 
+    '$!instance_metaclass'
 );
 
 # check class
@@ -205,58 +207,58 @@ foreach my $attribute_name (@class_mop_module_attributes) {
 
 # ... package
 
-ok($class_mop_package_meta->get_attribute('$:package')->has_reader, '... Class::MOP::Class $:package has a reader');
-is(ref($class_mop_package_meta->get_attribute('$:package')->reader), 'HASH', '... Class::MOP::Class $:package\'s a reader is { name => sub { ... } }');
+ok($class_mop_package_meta->get_attribute('$!package')->has_reader, '... Class::MOP::Class $!package has a reader');
+is(ref($class_mop_package_meta->get_attribute('$!package')->reader), 'HASH', '... Class::MOP::Class $!package\'s a reader is { name => sub { ... } }');
 
-ok($class_mop_package_meta->get_attribute('$:package')->has_init_arg, '... Class::MOP::Class $:package has a init_arg');
-is($class_mop_package_meta->get_attribute('$:package')->init_arg, ':package', '... Class::MOP::Class $:package\'s a init_arg is :package');
+ok($class_mop_package_meta->get_attribute('$!package')->has_init_arg, '... Class::MOP::Class $!package has a init_arg');
+is($class_mop_package_meta->get_attribute('$!package')->init_arg, 'package', '... Class::MOP::Class $!package\'s a init_arg is package');
 
 # ... class
 
-ok($class_mop_class_meta->get_attribute('%:attributes')->has_reader, '... Class::MOP::Class %:attributes has a reader');
-is_deeply($class_mop_class_meta->get_attribute('%:attributes')->reader, 
+ok($class_mop_class_meta->get_attribute('%!attributes')->has_reader, '... Class::MOP::Class %!attributes has a reader');
+is_deeply($class_mop_class_meta->get_attribute('%!attributes')->reader, 
    { 'get_attribute_map' => \&Class::MOP::Class::get_attribute_map }, 
-   '... Class::MOP::Class %:attributes\'s a reader is &get_attribute_map');
+   '... Class::MOP::Class %!attributes\'s a reader is &get_attribute_map');
    
-ok($class_mop_class_meta->get_attribute('%:attributes')->has_init_arg, '... Class::MOP::Class %:attributes has a init_arg');
-is($class_mop_class_meta->get_attribute('%:attributes')->init_arg, 
-  ':attributes', 
-  '... Class::MOP::Class %:attributes\'s a init_arg is :attributes');   
+ok($class_mop_class_meta->get_attribute('%!attributes')->has_init_arg, '... Class::MOP::Class %!attributes has a init_arg');
+is($class_mop_class_meta->get_attribute('%!attributes')->init_arg, 
+  'attributes', 
+  '... Class::MOP::Class %!attributes\'s a init_arg is attributes');   
   
-ok($class_mop_class_meta->get_attribute('%:attributes')->has_default, '... Class::MOP::Class %:attributes has a default');
-is_deeply($class_mop_class_meta->get_attribute('%:attributes')->default('Foo'), 
+ok($class_mop_class_meta->get_attribute('%!attributes')->has_default, '... Class::MOP::Class %!attributes has a default');
+is_deeply($class_mop_class_meta->get_attribute('%!attributes')->default('Foo'), 
          {}, 
-         '... Class::MOP::Class %:attributes\'s a default of {}');  
+         '... Class::MOP::Class %!attributes\'s a default of {}');  
 
-ok($class_mop_class_meta->get_attribute('$:attribute_metaclass')->has_reader, '... Class::MOP::Class $:attribute_metaclass has a reader');
-is_deeply($class_mop_class_meta->get_attribute('$:attribute_metaclass')->reader, 
+ok($class_mop_class_meta->get_attribute('$!attribute_metaclass')->has_reader, '... Class::MOP::Class $!attribute_metaclass has a reader');
+is_deeply($class_mop_class_meta->get_attribute('$!attribute_metaclass')->reader, 
    { 'attribute_metaclass' => \&Class::MOP::Class::attribute_metaclass }, 
-  '... Class::MOP::Class $:attribute_metaclass\'s a reader is &attribute_metaclass');
+  '... Class::MOP::Class $!attribute_metaclass\'s a reader is &attribute_metaclass');
   
-ok($class_mop_class_meta->get_attribute('$:attribute_metaclass')->has_init_arg, '... Class::MOP::Class $:attribute_metaclass has a init_arg');
-is($class_mop_class_meta->get_attribute('$:attribute_metaclass')->init_arg, 
-   ':attribute_metaclass', 
-   '... Class::MOP::Class $:attribute_metaclass\'s a init_arg is :attribute_metaclass');  
+ok($class_mop_class_meta->get_attribute('$!attribute_metaclass')->has_init_arg, '... Class::MOP::Class $!attribute_metaclass has a init_arg');
+is($class_mop_class_meta->get_attribute('$!attribute_metaclass')->init_arg, 
+   'attribute_metaclass', 
+   '... Class::MOP::Class $!attribute_metaclass\'s a init_arg is attribute_metaclass');  
    
-ok($class_mop_class_meta->get_attribute('$:attribute_metaclass')->has_default, '... Class::MOP::Class $:attribute_metaclass has a default');
-is($class_mop_class_meta->get_attribute('$:attribute_metaclass')->default, 
+ok($class_mop_class_meta->get_attribute('$!attribute_metaclass')->has_default, '... Class::MOP::Class $!attribute_metaclass has a default');
+is($class_mop_class_meta->get_attribute('$!attribute_metaclass')->default, 
   'Class::MOP::Attribute', 
-  '... Class::MOP::Class $:attribute_metaclass\'s a default is Class::MOP:::Attribute');   
+  '... Class::MOP::Class $!attribute_metaclass\'s a default is Class::MOP:::Attribute');   
   
-ok($class_mop_class_meta->get_attribute('$:method_metaclass')->has_reader, '... Class::MOP::Class $:method_metaclass has a reader');
-is_deeply($class_mop_class_meta->get_attribute('$:method_metaclass')->reader, 
+ok($class_mop_class_meta->get_attribute('$!method_metaclass')->has_reader, '... Class::MOP::Class $!method_metaclass has a reader');
+is_deeply($class_mop_class_meta->get_attribute('$!method_metaclass')->reader, 
    { 'method_metaclass' => \&Class::MOP::Class::method_metaclass },
-   '... Class::MOP::Class $:method_metaclass\'s a reader is &method_metaclass');  
+   '... Class::MOP::Class $!method_metaclass\'s a reader is &method_metaclass');  
    
-ok($class_mop_class_meta->get_attribute('$:method_metaclass')->has_init_arg, '... Class::MOP::Class $:method_metaclass has a init_arg');
-is($class_mop_class_meta->get_attribute('$:method_metaclass')->init_arg, 
-  ':method_metaclass', 
-  '... Class::MOP::Class $:method_metaclass\'s init_arg is :method_metaclass');   
+ok($class_mop_class_meta->get_attribute('$!method_metaclass')->has_init_arg, '... Class::MOP::Class $!method_metaclass has a init_arg');
+is($class_mop_class_meta->get_attribute('$!method_metaclass')->init_arg, 
+  'method_metaclass', 
+  '... Class::MOP::Class $:method_metaclass\'s init_arg is method_metaclass');   
   
-ok($class_mop_class_meta->get_attribute('$:method_metaclass')->has_default, '... Class::MOP::Class $:method_metaclass has a default');
-is($class_mop_class_meta->get_attribute('$:method_metaclass')->default, 
+ok($class_mop_class_meta->get_attribute('$!method_metaclass')->has_default, '... Class::MOP::Class $!method_metaclass has a default');
+is($class_mop_class_meta->get_attribute('$!method_metaclass')->default, 
    'Class::MOP::Method', 
-  '... Class::MOP::Class $:method_metaclass\'s a default is Class::MOP:::Method');  
+  '... Class::MOP::Class $!method_metaclass\'s a default is Class::MOP:::Method');  
 
 # check the values of some of the methods
 
diff --git a/t/014_attribute_introspection.t b/t/014_attribute_introspection.t
index 30af573..7fe3b0e 100644
--- a/t/014_attribute_introspection.t
+++ b/t/014_attribute_introspection.t
@@ -62,9 +62,17 @@ BEGIN {
         ok($meta->has_method($method_name), '... Class::MOP::Attribute->has_method(' . $method_name . ')');
     }
     
-    my @attributes = qw(
-        name accessor reader writer predicate clearer
-        init_arg default associated_class associated_methods
+    my @attributes = (
+        '$!name',
+        '$!accessor',
+        '$!reader',
+        '$!writer',
+        '$!predicate',
+        '$!clearer',
+        '$!init_arg',
+        '$!default',
+        '$!associated_class',
+        '@!associated_methods',
         );
 
     is_deeply(
diff --git a/t/018_anon_class.t b/t/018_anon_class.t
index 1eb3aa6..ad048eb 100644
--- a/t/018_anon_class.t
+++ b/t/018_anon_class.t
@@ -49,7 +49,7 @@ my $instance;
     ok($anon_class->has_method('foo'), '... we have a foo method now');  
 
     $instance = $anon_class->new_object();
-    isa_ok($instance, $anon_class->name);
+    isa_ok($instance, $anon_class->name);  
     isa_ok($instance, 'Foo');    
 
     is($instance->foo, '__ANON__::foo', '... got the right return value of our foo method');
diff --git a/t/040_metaclass.t b/t/040_metaclass.t
index b8f4918..190d8b0 100644
--- a/t/040_metaclass.t
+++ b/t/040_metaclass.t
@@ -33,8 +33,8 @@ isa_ok(Foo->meta, 'Class::MOP::Class');
     
     package Bar;
     use metaclass 'BarMeta' => (
-        ':attribute_metaclass' => 'BarMeta::Attribute',
-        ':method_metaclass'    => 'BarMeta::Method',        
+        'attribute_metaclass' => 'BarMeta::Attribute',
+        'method_metaclass'    => 'BarMeta::Method',        
     );
 }
 
diff --git a/t/043_instance_metaclass_incompatibility.t b/t/043_instance_metaclass_incompatibility.t
index 9c53486..3e64164 100644
--- a/t/043_instance_metaclass_incompatibility.t
+++ b/t/043_instance_metaclass_incompatibility.t
@@ -24,14 +24,14 @@ BEGIN {
 $@ = undef;
 eval {
     package Foo;
-    metaclass->import(':instance_metaclass' => 'Foo::Meta::Instance');
+    metaclass->import('instance_metaclass' => 'Foo::Meta::Instance');
 };
 ok(!$@, '... Foo.meta => Foo::Meta is compatible') || diag $@;
 
 $@ = undef;
 eval {
     package Bar;
-    metaclass->import(':instance_metaclass' => 'Bar::Meta::Instance');
+    metaclass->import('instance_metaclass' => 'Bar::Meta::Instance');
 };
 ok(!$@, '... Bar.meta => Bar::Meta is compatible') || diag $@;
 
@@ -39,7 +39,7 @@ $@ = undef;
 eval {
     package Foo::Foo;
     use base 'Foo';
-    metaclass->import(':instance_metaclass' => 'Bar::Meta::Instance');
+    metaclass->import('instance_metaclass' => 'Bar::Meta::Instance');
 };
 ok($@, '... Foo::Foo.meta => Bar::Meta is not compatible') || diag $@;
 
@@ -47,7 +47,7 @@ $@ = undef;
 eval {
     package Bar::Bar;
     use base 'Bar';
-    metaclass->import(':instance_metaclass' => 'Foo::Meta::Instance');    
+    metaclass->import('instance_metaclass' => 'Foo::Meta::Instance');    
 };
 ok($@, '... Bar::Bar.meta => Foo::Meta is not compatible') || diag $@;
 
@@ -55,7 +55,7 @@ $@ = undef;
 eval {
     package FooBar;
     use base 'Foo';
-    metaclass->import(':instance_metaclass' => 'FooBar::Meta::Instance');    
+    metaclass->import('instance_metaclass' => 'FooBar::Meta::Instance');    
 };
 ok(!$@, '... FooBar.meta => FooBar::Meta is compatible') || diag $@;
 
@@ -63,7 +63,7 @@ $@ = undef;
 eval {
     package FooBar2;
     use base 'Bar';
-    metaclass->import(':instance_metaclass' => 'FooBar::Meta::Instance');    
+    metaclass->import('instance_metaclass' => 'FooBar::Meta::Instance');    
 };
 ok(!$@, '... FooBar2.meta => FooBar::Meta is compatible') || diag $@;
 
diff --git a/t/044_instance_metaclass_incompatibility_dynamic.t b/t/044_instance_metaclass_incompatibility_dynamic.t
index e52b24a..9587930 100644
--- a/t/044_instance_metaclass_incompatibility_dynamic.t
+++ b/t/044_instance_metaclass_incompatibility_dynamic.t
@@ -24,21 +24,21 @@ BEGIN {
 $@ = undef;
 eval {
     package Foo;
-    metaclass->import(':instance_metaclass' => 'Foo::Meta::Instance');
+    metaclass->import('instance_metaclass' => 'Foo::Meta::Instance');
 };
 ok(!$@, '... Foo.meta => Foo::Meta is compatible') || diag $@;
 
 $@ = undef;
 eval {
     package Bar;
-    metaclass->import(':instance_metaclass' => 'Bar::Meta::Instance');
+    metaclass->import('instance_metaclass' => 'Bar::Meta::Instance');
 };
 ok(!$@, '... Bar.meta => Bar::Meta is compatible') || diag $@;
 
 $@ = undef;
 eval {
     package Foo::Foo;
-    metaclass->import(':instance_metaclass' => 'Bar::Meta::Instance');
+    metaclass->import('instance_metaclass' => 'Bar::Meta::Instance');
     Foo::Foo->meta->superclasses('Foo');    
 };
 ok($@, '... Foo::Foo.meta => Bar::Meta is not compatible') || diag $@;
@@ -46,7 +46,7 @@ ok($@, '... Foo::Foo.meta => Bar::Meta is not compatible') || diag $@;
 $@ = undef;
 eval {
     package Bar::Bar;
-    metaclass->import(':instance_metaclass' => 'Foo::Meta::Instance');  
+    metaclass->import('instance_metaclass' => 'Foo::Meta::Instance');  
     Bar::Bar->meta->superclasses('Bar');
 };
 ok($@, '... Bar::Bar.meta => Foo::Meta is not compatible') || diag $@;
@@ -54,7 +54,7 @@ ok($@, '... Bar::Bar.meta => Foo::Meta is not compatible') || diag $@;
 $@ = undef;
 eval {
     package FooBar;
-    metaclass->import(':instance_metaclass' => 'FooBar::Meta::Instance');   
+    metaclass->import('instance_metaclass' => 'FooBar::Meta::Instance');   
     FooBar->meta->superclasses('Foo');    
 };
 ok(!$@, '... FooBar.meta => FooBar::Meta is compatible') || diag $@;
@@ -62,7 +62,7 @@ ok(!$@, '... FooBar.meta => FooBar::Meta is compatible') || diag $@;
 $@ = undef;
 eval {
     package FooBar2;
-    metaclass->import(':instance_metaclass' => 'FooBar::Meta::Instance');   
+    metaclass->import('instance_metaclass' => 'FooBar::Meta::Instance');   
     FooBar2->meta->superclasses('Bar');    
 };
 ok(!$@, '... FooBar2.meta => FooBar::Meta is compatible') || diag $@;
diff --git a/t/070_immutable_metaclass.t b/t/070_immutable_metaclass.t
index d057136..5b1a1ca 100644
--- a/t/070_immutable_metaclass.t
+++ b/t/070_immutable_metaclass.t
@@ -3,12 +3,11 @@
 use strict;
 use warnings;
 
-use Test::More tests => 77;
+use Test::More tests => 73;
 use Test::Exception;
 
 BEGIN {
     use_ok('Class::MOP');
-    use_ok('Class::MOP::Class::Immutable');    
 }
 
 {
@@ -57,7 +56,6 @@ BEGIN {
     ok(!$meta->is_mutable, '... our class is no longer mutable');
     ok($meta->is_immutable, '... our class is now immutable');    
 
-    isa_ok($meta, 'Class::MOP::Class::Immutable');
     isa_ok($meta, 'Class::MOP::Class');
     
     dies_ok { $meta->add_method()    } '... exception thrown as expected';
@@ -119,7 +117,6 @@ BEGIN {
     ok(!$meta->is_mutable, '... our class is no longer mutable');
     ok($meta->is_immutable, '... our class is now immutable');    
 
-    isa_ok($meta, 'Class::MOP::Class::Immutable');
     isa_ok($meta, 'Class::MOP::Class');
     
     dies_ok { $meta->add_method()    } '... exception thrown as expected';
@@ -181,7 +178,6 @@ BEGIN {
     ok(!$meta->is_mutable, '... our class is no longer mutable');
     ok($meta->is_immutable, '... our class is now immutable');    
 
-    isa_ok($meta, 'Class::MOP::Class::Immutable');
     isa_ok($meta, 'Class::MOP::Class');
     
     dies_ok { $meta->add_method()    } '... exception thrown as expected';
diff --git a/t/072_immutable_w_constructors.t b/t/072_immutable_w_constructors.t
index aeeaff6..70a59d1 100644
--- a/t/072_immutable_w_constructors.t
+++ b/t/072_immutable_w_constructors.t
@@ -3,12 +3,12 @@
 use strict;
 use warnings;
 
-use Test::More tests => 76;
+use Test::More tests => 73;
 use Test::Exception;
 
 BEGIN {
     use_ok('Class::MOP');
-    use_ok('Class::MOP::Class::Immutable');    
+    use_ok('Class::MOP::Immutable');    
 }
 
 {
@@ -72,7 +72,6 @@ BEGIN {
     } '... changed Foo to be immutable';
 
     ok($meta->is_immutable, '... our class is now immutable');        
-    isa_ok($meta, 'Class::MOP::Class::Immutable');
     isa_ok($meta, 'Class::MOP::Class');    
     
     # they made a constructor for us :)
@@ -128,7 +127,6 @@ BEGIN {
     } '... changed Bar to be immutable';
 
     ok($meta->is_immutable, '... our class is now immutable');        
-    isa_ok($meta, 'Class::MOP::Class::Immutable');
     isa_ok($meta, 'Class::MOP::Class');    
     
     # they made a constructor for us :)
@@ -198,7 +196,6 @@ BEGIN {
     } '... changed Bar to be immutable';
 
     ok($meta->is_immutable, '... our class is now immutable');        
-    isa_ok($meta, 'Class::MOP::Class::Immutable');
     isa_ok($meta, 'Class::MOP::Class');    
     
     ok(!Baz->meta->has_method('new'), '... no constructor was made');
diff --git a/t/102_InsideOutClass_test.t b/t/102_InsideOutClass_test.t
index b8c5d62..615203d 100644
--- a/t/102_InsideOutClass_test.t
+++ b/t/102_InsideOutClass_test.t
@@ -19,8 +19,8 @@ BEGIN {
     use warnings;    
     
     use metaclass (
-        ':attribute_metaclass' => 'InsideOutClass::Attribute',
-        ':instance_metaclass'  => 'InsideOutClass::Instance'
+        'attribute_metaclass' => 'InsideOutClass::Attribute',
+        'instance_metaclass'  => 'InsideOutClass::Instance'
     );
     
     Foo->meta->add_attribute('foo' => (
@@ -56,8 +56,8 @@ BEGIN {
     use strict;
     use warnings;
     use metaclass (     
-        ':attribute_metaclass' => 'InsideOutClass::Attribute',
-        ':instance_metaclass'  => 'InsideOutClass::Instance'
+        'attribute_metaclass' => 'InsideOutClass::Attribute',
+        'instance_metaclass'  => 'InsideOutClass::Instance'
     );
     
     Baz->meta->add_attribute('bling' => (
diff --git a/t/106_LazyClass_test.t b/t/106_LazyClass_test.t
index d9a8924..f457f55 100644
--- a/t/106_LazyClass_test.t
+++ b/t/106_LazyClass_test.t
@@ -15,13 +15,13 @@ BEGIN {
     package BinaryTree;
     
     use metaclass (
-        ':attribute_metaclass' => 'LazyClass::Attribute',
-        ':instance_metaclass'  => 'LazyClass::Instance',        
+        'attribute_metaclass' => 'LazyClass::Attribute',
+        'instance_metaclass'  => 'LazyClass::Instance',        
     );
 
     BinaryTree->meta->add_attribute('$:node' => (
         accessor => 'node',
-        init_arg => ':node'
+        init_arg => 'node'
     ));
     
     BinaryTree->meta->add_attribute('$:left' => (
@@ -40,7 +40,7 @@ BEGIN {
     }
 }
 
-my $root = BinaryTree->new(':node' => 0);
+my $root = BinaryTree->new('node' => 0);
 isa_ok($root, 'BinaryTree');
 
 ok(exists($root->{'$:node'}), '... node attribute has been initialized yet');
diff --git a/t/108_ArrayBasedStorage_test.t b/t/108_ArrayBasedStorage_test.t
index c36a111..0757a61 100644
--- a/t/108_ArrayBasedStorage_test.t
+++ b/t/108_ArrayBasedStorage_test.t
@@ -18,7 +18,7 @@ BEGIN {
     use strict;
     use warnings;    
     use metaclass (
-        ':instance_metaclass'  => 'ArrayBasedStorage::Instance',
+        'instance_metaclass'  => 'ArrayBasedStorage::Instance',
     );
     
     Foo->meta->add_attribute('foo' => (
@@ -54,7 +54,7 @@ BEGIN {
     use strict;
     use warnings;
     use metaclass (        
-        ':instance_metaclass'  => 'ArrayBasedStorage::Instance',
+        'instance_metaclass'  => 'ArrayBasedStorage::Instance',
     );
     
     Baz->meta->add_attribute('bling' => (