Added mixin support [#1]

lib/oo.js

@@ -63,7 +63,13 @@
 
     Class.include = function(props) {
       for (var name in props)
-        if (props.hasOwnProperty(name))
+        if (name == 'include')
+          if (props[name] instanceof Array)
+            for (var i = 0, len = props[name].length; i < len; ++i)
+              Class.include(props[name][i])
+          else
+            Class.include(props[name])
+        else if (props.hasOwnProperty(name))
           prototype[name] = 
             typeof props[name] == 'function' &&
             typeof __super__[name] == 'function' &&

spec/spec.core.js

@@ -20,6 +20,30 @@ describe 'Class'
     end
   end
 
+  describe '.include'
+    it 'should include an array of mixins'
+      Foo = { a: 'b' }
+      Bar = { c: 'd' }
+      Baz = Class({
+        include: [Foo, Bar],
+        d: 'e'
+      })
+      (new Baz).should.have_property 'a', 'b'
+      (new Baz).should.have_property 'c', 'd'
+      (new Baz).should.have_property 'd', 'e'
+    end
+
+    it 'should include a single mixin'
+      Foo = { a: 'b' }
+      Bar = Class({
+        include: Foo,
+        c: 'd'
+      })
+      (new Bar).should.have_property 'a', 'b'
+      (new Bar).should.have_property 'c', 'd'
+    end
+  end
+
   describe '.include()'
     it 'should merge additional methods'
       Foo = Class({