X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMouse%2FMeta%2FModule.pm;h=12b0453b3bf39ec6d8ff911ab4e847b0571a1d83;hb=6cfa1e5e70616fb102915489c02d8347ffa912fb;hp=01d42c10ee943980bead033f81fd51b0317c2b94;hpb=3a63a2e7ef8fbac5f61eab04baecbf5d19374b83;p=gitmo%2FMouse.git

diff --git a/lib/Mouse/Meta/Module.pm b/lib/Mouse/Meta/Module.pm
index 01d42c1..12b0453 100755
--- a/lib/Mouse/Meta/Module.pm
+++ b/lib/Mouse/Meta/Module.pm
@@ -2,13 +2,75 @@ package Mouse::Meta::Module;
 use strict;
 use warnings;
 
-use Scalar::Util qw/blessed weaken/;
-use Mouse::Util qw/version authority identifier get_code_info/;
-use Carp 'confess';
+use Mouse::Util qw/get_code_info not_supported load_class/;
+use Scalar::Util qw/blessed/;
+
+
+{
+    my %METACLASS_CACHE;
+
+    # because Mouse doesn't introspect existing classes, we're forced to
+    # only pay attention to other Mouse classes
+    sub _metaclass_cache {
+        my($class, $name) = @_;
+        return $METACLASS_CACHE{$name};
+    }
+
+    sub initialize {
+        my($class, $package_name, @args) = @_;
+
+        ($package_name && !ref($package_name))
+            || $class->throw_error("You must pass a package name and it cannot be blessed");
+
+        return $METACLASS_CACHE{$package_name}
+            ||= $class->_new(package => $package_name, @args);
+    }
+
+    sub Mouse::class_of{
+        my($class_or_instance) = @_;
+        return undef unless defined $class_or_instance;
+        return $METACLASS_CACHE{ blessed($class_or_instance) || $class_or_instance };
+    }
+
+    # Means of accessing all the metaclasses that have
+    # been initialized thus far
+    sub get_all_metaclasses         {        %METACLASS_CACHE         }
+    sub get_all_metaclass_instances { values %METACLASS_CACHE         }
+    sub get_all_metaclass_names     { keys   %METACLASS_CACHE         }
+    sub get_metaclass_by_name       { $METACLASS_CACHE{$_[0]}         }
+    sub store_metaclass_by_name     { $METACLASS_CACHE{$_[0]} = $_[1] }
+    sub weaken_metaclass            { weaken($METACLASS_CACHE{$_[0]}) }
+    sub does_metaclass_exist        { defined $METACLASS_CACHE{$_[0]} }
+    sub remove_metaclass_by_name    { delete $METACLASS_CACHE{$_[0]}  }
+
+}
+
+sub meta{ Mouse::Meta::Class->initialize(ref $_[0] || $_[0]) }
+
+sub _new{ Carp::croak("Mouse::Meta::Module is an abstract class") }
 
 sub name { $_[0]->{package} }
 sub _method_map{ $_[0]->{methods} }
 
+sub version   { no strict 'refs'; ${shift->name.'::VERSION'}   }
+sub authority { no strict 'refs'; ${shift->name.'::AUTHORITY'} }
+sub identifier {
+    my $self = shift;
+    return join '-' => (
+        $self->name,
+        ($self->version   || ()),
+        ($self->authority || ()),
+    );
+}
+
+# add_attribute is an abstract method
+
+sub get_attribute_map {        $_[0]->{attributes}          }
+sub has_attribute     { exists $_[0]->{attributes}->{$_[1]} }
+sub get_attribute     {        $_[0]->{attributes}->{$_[1]} }
+sub get_attribute_list{ keys %{$_[0]->{attributes}}         }
+sub remove_attribute  { delete $_[0]->{attributes}->{$_[1]} }
+
 sub namespace{
     my $name = $_[0]->{package};
     no strict 'refs';
@@ -19,10 +81,10 @@ sub add_method {
     my($self, $name, $code) = @_;
 
     if(!defined $name){
-        confess "You must pass a defined name";
+        $self->throw_error("You must pass a defined name");
     }
     if(ref($code) ne 'CODE'){
-        confess "You must pass a CODE reference";
+        not_supported 'add_method for a method object';
     }
 
     $self->_method_map->{$name}++; # Moose stores meta object here.
@@ -51,7 +113,23 @@ sub has_method {
     return $code && $self->_code_is_mine($code);
 }
 
+sub get_method{
+    my($self, $method_name) = @_;
+
+    if($self->has_method($method_name)){
+        my $method_metaclass = $self->method_metaclass;
+        load_class($method_metaclass);
+
+        my $package = $self->name;
+        return $method_metaclass->new(
+            body    => $package->can($method_name),
+            name    => $method_name,
+            package => $package,
+        );
+    }
 
+    return undef;
+}
 
 sub get_method_list {
     my($self) = @_;
@@ -59,14 +137,19 @@ sub get_method_list {
     return grep { $self->has_method($_) } keys %{ $self->namespace };
 }
 
-sub get_attribute_map { $_[0]->{attributes} }
-sub has_attribute     { exists $_[0]->{attributes}->{$_[1]} }
-sub get_attribute     { $_[0]->{attributes}->{$_[1]} }
-sub get_attribute_list {
-    my $self = shift;
-    keys %{$self->get_attribute_map};
-}
+sub throw_error{
+    my($class, $message, %args) = @_;
 
+    local $Carp::CarpLevel  = $Carp::CarpLevel + 1 + ($args{depth} || 0);
+    local $Carp::MaxArgNums = 20; # default is 8, usually we use named args which gets messier though
+
+    if(exists $args{longmess} && !$args{longmess}){ # intentionaly longmess => 0
+        Carp::croak($message);
+    }
+    else{
+        Carp::confess($message);
+    }
+}
 
 1;