Generation of sdk/lib files from 45 roll

tools/dom/scripts/htmldartgenerator.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
 from generator import AnalyzeOperation, ConstantOutputOrder, \
@@ skipping 114 matching lines @@
     # defined in the current interface as well as a parent.  In that case we
     # avoid making a duplicate definition and pray that the signatures match.
     if not self._renamer.ShouldSuppressInterface(interface):
       secondary_constants = sorted(self._HoistableConstants(interface),
                                      ConstantOutputOrder)
       for const in secondary_constants:
         self.AddConstant(const)
 
     secondary_parents = self._database.TransitiveSecondaryParents(interface,
                           not self._dart_use_blink)
+    remove_duplicate_parents = list(set(secondary_parents))
+    if len(secondary_parents) != len(remove_duplicate_parents):
+      secondary_parents = remove_duplicate_parents
+      parent_list = ", ".join(["  %s" % (parent.id) for parent in secondary_parents])
+      _logger.warn('Interface %s has duplicate parent interfaces %s - ' \
+                   'ignoring duplicates. Please file a bug with the dart:html team.' % (interface.id, parent_list))
+
     for parent_interface in sorted(secondary_parents):
       if isinstance(parent_interface, str):
         continue
 
       for attr in sorted(parent_interface.attributes, ConstantOutputOrder):
         if not FindMatchingAttribute(interface, attr):
           if attr.type.id != 'EventHandler':
             self.SecondaryContext(parent_interface)
             self.AddAttribute(attr)
 
@@ skipping 735 matching lines @@
   def _InputType(self, type_name, info):
     conversion = self._InputConversion(type_name, info.declared_name)
     if conversion:
       return conversion.input_type
     else:
       # If typedef it's a union return dynamic.
       if self._database.HasTypeDef(type_name):
         return 'dynamic'
       else:
         return self._NarrowInputType(type_name) if type_name else 'dynamic'