Fixing up DOM constructors.

tools/dom/scripts/systemhtml.py

 #!/usr/bin/python
 # 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.
 
 """This module provides shared functionality for the system to generate
 Dart:html APIs from the IDL database."""
 
 import emitter
 import logging
@@ skipping 522 matching lines @@
     mixins_str = ''
     if mixins:
       mixins_str = ' with ' + ', '.join(mixins)
       if not base_class:
         base_class = 'Interceptor'
 
     annotations = self._metadata.GetFormattedMetadata(
         self._library_name, self._interface, None, '')
 
     class_modifiers = ''
-    if self._renamer.ShouldSuppressInterface(self._interface):
+    if (self._renamer.ShouldSuppressInterface(self._interface) or
+        IsPureInterface(self._interface.id)):
       class_modifiers = 'abstract '
 
+    native_spec = ''
+    if not IsPureInterface(self._interface.id):
+      native_spec = self._backend.NativeSpec()
+
     self._implementation_members_emitter = implementation_emitter.Emit(
         self._backend.ImplementationTemplate(),
         LIBRARYNAME='dart.dom.%s' % self._library_name,
         ANNOTATIONS=annotations,
         CLASS_MODIFIERS=class_modifiers,
         CLASSNAME=self._interface_type_info.implementation_name(),
         EXTENDS=' extends %s' % base_class if base_class else '',
         IMPLEMENTS=implements_str,
         MIXINS=mixins_str,
         DOMNAME=self._interface.doc_js_name,
-        NATIVESPEC=self._backend.NativeSpec())
+        NATIVESPEC=native_spec)
     self._backend.StartInterface(self._implementation_members_emitter)
 
     self._backend.EmitHelpers(base_class)
     self._event_generator.EmitStreamProviders(
         self._interface,
         self._backend.CustomJSMembers(),
         self._implementation_members_emitter,
         self._library_name)
     self._backend.AddConstructors(
         constructors, factory_provider, factory_constructor_name)
@@ skipping 58 matching lines @@
     implements = super(Dart2JSBackend, self).AdditionalImplementedInterfaces()
     if self._interface_type_info.list_item_type():
       implements.append('JavaScriptIndexingBehavior')
     return implements
 
   def NativeSpec(self):
     native_spec = MakeNativeSpec(self._interface.javascript_binding_name)
     return ' native "%s"' % native_spec
 
   def ImplementationTemplate(self):
-    if IsPureInterface(self._interface.id):
-      return self._template_loader.Load('pure_interface.darttemplate')
-
     template_file = ('impl_%s.darttemplate' %
                      self._interface.doc_js_name)
     return (self._template_loader.TryLoad(template_file) or
             self._template_loader.Load('dart2js_impl.darttemplate'))
 
   def StartInterface(self, members_emitter):
     self._members_emitter = members_emitter
 
   def FinishInterface(self):
     pass
@@ skipping 242 matching lines @@
         '\n',
         CONVERT=conversion.function_name,
         HTML_NAME=html_name,
         NAME=attr.id,
         INPUT_TYPE=conversion.input_type,
         NATIVE_TYPE=conversion.output_type)
 
   def AmendIndexer(self, element_type):
     pass
 
+  def RootClassName(self):
+    return 'Interceptor'
+
   def EmitOperation(self, info, html_name):
     """
     Arguments:
       info: An OperationInfo object.
     """
     if self._HasCustomImplementation(info.name):
       return
 
     if IsPureInterface(self._interface.id):
       self._AddInterfaceOperation(info, html_name)
@@ skipping 278 matching lines @@
     for library_name in libraries:
       self._libraries[library_name] = DartLibrary(
           library_name, template_loader, library_type, output_dir)
 
   def AddFile(self, basename, library_name, path):
     self._libraries[library_name].AddFile(path)
 
   def Emit(self, emitter, auxiliary_dir):
     for lib in self._libraries.values():
       lib.Emit(emitter, auxiliary_dir)