Arity indexing in dart:blink entry points

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 457 matching lines @@
       is_optional,
       can_omit_type_check=lambda type, pos: False):
 
     def GenerateCall(
         stmts_emitter, call_emitter, version, signature_index, argument_count):
       generate_call(
           stmts_emitter, call_emitter,
           version, operations[signature_index], argument_count)
 
     def IsOptional(signature_index, argument):
-      return is_optional(operations[signature_index], argument)
+      return is_optional(argument)
 
     emitter = self._members_emitter
 
     self._GenerateOverloadDispatcher(
         info,
         [operation.arguments for operation in operations],
         operations[0].type.id == 'void',
         declaration,
         GenerateCall,
         IsOptional,
@@ skipping 93 matching lines @@
           self._DartType)
 
       def GenerateCall(
           stmts_emitter, call_emitter,
           version, signature_index, argument_count):
         name = emitter.Format('_create_$VERSION', VERSION=version)
         arguments = constructor_info.idl_args[signature_index][:argument_count]
         if self._dart_use_blink:
             type_ids = [p.type.id for p in arguments]
             base_name, rs = \
-                self.DeriveNativeEntry("constructorCallback", None, type_ids,
-                                       False)
+                self.DeriveNativeEntry("constructorCallback", 'Constructor', argument_count)
             qualified_name = \
                 self.DeriveQualifiedBlinkName(self._interface.id,
                                               base_name)
         else:
             qualified_name = emitter.Format(
                 '$FACTORY.$NAME',
                 FACTORY=factory_name,
                 NAME=name)
         call_emitter.Emit('$FACTORY_NAME($FACTORY_PARAMS)',
             FACTORY_NAME=qualified_name,
@@ skipping 175 matching lines @@
     return self._type_registry.TypeInfo(type_name).narrow_dart_type()
 
   def _NarrowInputType(self, type_name):
     return self._NarrowToImplementationType(type_name)
 
   def _DartType(self, type_name):
     return self._type_registry.DartType(type_name)
 
   def _TypeInfo(self, type_name):
     return self._type_registry.TypeInfo(type_name)