From: Tokuhiro Matsuno <tokuhirom@gmail.com>
Date: Wed, 10 Jun 2009 04:57:29 +0000 (+0900)
Subject: added Mouse->init_meta
X-Git-Tag: 0.24~3
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=0d6e12bec0f93cd1e6e0f58bd00fbad9447dd325;p=gitmo%2FMouse.git

added Mouse->init_meta
---

diff --git a/lib/Mouse.pm b/lib/Mouse.pm
index 7cdd243..9cca1dc 100644
--- a/lib/Mouse.pm
+++ b/lib/Mouse.pm
@@ -88,6 +88,46 @@ sub override {
     });
 }
 
+sub init_meta {
+    # This used to be called as a function. This hack preserves
+    # backwards compatibility.
+    if ( $_[0] ne __PACKAGE__ ) {
+        return __PACKAGE__->init_meta(
+            for_class  => $_[0],
+            base_class => $_[1],
+            metaclass  => $_[2],
+        );
+    }
+
+    shift;
+    my %args = @_;
+
+    my $class = $args{for_class}
+      or Carp::croak(
+        "Cannot call init_meta without specifying a for_class");
+    my $base_class = $args{base_class} || 'Mouse::Object';
+    my $metaclass  = $args{metaclass}  || 'Mouse::Meta::Class';
+
+    Carp::croak("The Metaclass $metaclass must be a subclass of Mouse::Meta::Class.")
+            unless $metaclass->isa('Mouse::Meta::Class');
+    
+    # make a subtype for each Mouse class
+    class_type($class)
+        unless find_type_constraint($class);
+
+    my $meta = $metaclass->initialize($class);
+    $meta->superclasses($base_class)
+        unless $meta->superclasses;
+
+    {
+        no strict 'refs';
+        no warnings 'redefine';
+        *{$class.'::meta'} = sub { $meta };
+    }
+
+    return $meta;
+}
+
 sub import {
     my $class = shift;
 
@@ -111,16 +151,9 @@ sub import {
         return;
     }
 
-    my $meta = Mouse::Meta::Class->initialize($caller);
-    $meta->superclasses('Mouse::Object')
-        unless $meta->superclasses;
-
-    # make a subtype for each Mouse class
-    class_type($caller) unless find_type_constraint($caller);
-
-    no strict 'refs';
-    no warnings 'redefine';
-    *{$caller.'::meta'} = sub { $meta };
+    Mouse->init_meta(
+        for_class  => $caller,
+    );
 
     if (@_) {
         __PACKAGE__->export_to_level( $level+1, $class, @_);
diff --git a/t/050_metaclasses/011_init_meta.t b/t/050_metaclasses/011_init_meta.t
new file mode 100644
index 0000000..9c47c78
--- /dev/null
+++ b/t/050_metaclasses/011_init_meta.t
@@ -0,0 +1,19 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More tests => 4;
+
+use Mouse ();
+
+
+{ package Foo; }
+
+my $meta = Mouse::init_meta('Foo');
+
+ok( Foo->isa('Mouse::Object'), '... Foo isa Mouse::Object');
+isa_ok( $meta, 'Mouse::Meta::Class' );
+isa_ok( Foo->meta, 'Mouse::Meta::Class' );
+
+is($meta, Foo->meta, '... our metas are the same');