Frog dart:dom using interfaces and native implementation classes.

frog/gen.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Top level generator object for writing code and keeping track of
  * dependencies.
  *
  * Should have two compilation models, but only one implemented so far.
  *
@@ skipping 314 matching lines @@
     }
   }
 
   writeType(Type type) {
     if (type.isWritten) return;
 
     type.isWritten = true;
     writeType(type.genericType);
     // Ensure parent has been written before the child. Important ordering for
     // IE when we're using $inherits, since we don't have __proto__ available.
-    if (type.parent !=  null && !type.isNative) {
+    if (type.parent !=  null) {
       writeType(type.parent);
     }
 
     var typeName = type.jsname != null ? type.jsname : 'top level';
     writer.comment('// ********** Code for ${typeName} **************');
     if (type.isNative && !type.isTop && !type.isConcreteGeneric) {
       var nativeName = type.definition.nativeType.name;
       if (nativeName == '') {
         writer.writeln('function ${type.jsname}() {}');
       } else if (type.jsname != nativeName) {
@@ skipping 2084 matching lines @@
     return true;
   }
 
 }
 
 class ReturnKind {
   static final int IGNORE = 1;
   static final int POST = 2;
   static final int PRE = 3;
 }