'extends Element'

sdk/lib/_internal/compiler/implementation/js_backend/native_emitter.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.
 
 part of js_backend;
 
 class NativeEmitter {
 
   CodeEmitterTask emitter;
   CodeBuffer nativeBuffer;
@@ skipping 285 matching lines @@
 
     for (ClassElement classElement in classes) {
       if (classElement.isNative()) continue;
       ClassElement nativeAncestor = nativeAncestorOf(classElement);
       if (nativeAncestor != null) {
         map
           .putIfAbsent(nativeAncestor, () => <ClassElement>[])
           .add(classElement);
       }
     }
-
     return map;
   }
 
   ClassBuilder generateNativeClass(ClassElement classElement) {
     assert(!classElement.hasBackendMembers);
     nativeClasses.add(classElement);
 
     ClassElement superclass = classElement.superclass;
     assert(superclass != null);
     // Fix superclass.  TODO(sra): make native classes inherit from Interceptor.
@@ skipping 203 matching lines @@
       if (emitter.compiler.enableMinification) targetBuffer.add(';');
       targetBuffer.add(jsAst.prettyPrint(
           new jsAst.ExpressionStatement(init), compiler));
       targetBuffer.add('\n');
     }
 
     targetBuffer.add(nativeBuffer);
     targetBuffer.add('\n');
   }
 }