Fixing some SVG collections not working on Dartium

tools/dom/scripts/systemnative.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 systems to generate
 native binding from the IDL database."""
 
 import emitter
 import os
@@ skipping 460 matching lines @@
     #
     #   class YImpl extends XImpl { add List<T> methods; }
     #
     # and
     #
     #   class YImpl extends ListBase<T> { copies of transitive XImpl methods; }
     #
     dart_element_type = self._DartType(element_type)
     if self._HasNativeIndexGetter():
       self._EmitNativeIndexGetter(dart_element_type)
+    elif self._HasExplicitIndexedGetter():
+      self._EmitExplicitIndexedGetter(dart_element_type)
     else:
       self._members_emitter.Emit(
           '\n'
           '  $TYPE operator[](int index) {\n'
           '    if (index < 0 || index >= length)\n'
           '      throw new RangeError.range(index, 0, length);\n'
           '    return _nativeIndexedGetter(index);\n'
           '  }\n'
           '  $TYPE _nativeIndexedGetter(int index) native "$(INTERFACE)_item_Callback";\n',
           TYPE=self.SecureOutputType(element_type),
@@ skipping 28 matching lines @@
 
   def _HasNativeIndexGetter(self):
     return 'CustomIndexedGetter' in self._interface.ext_attrs
 
   def _EmitNativeIndexGetter(self, element_type):
     dart_declaration = '%s operator[](int index)' % \
         self.SecureOutputType(element_type, True)
     self._GenerateNativeBinding('numericIndexGetter', 2, dart_declaration,
         'Callback', True)
 
+  def _HasExplicitIndexedGetter(self):
+    return any(op.id == 'getItem' for op in self._interface.operations)
+
+  def _EmitExplicitIndexedGetter(self, dart_element_type):
+    if any(op.id == 'getItem' for op in self._interface.operations):
+      indexed_getter = 'getItem'
+
+    self._members_emitter.Emit(
+        '\n'
+        '  $TYPE operator[](int index) {\n'
+        '    if (index < 0 || index >= length)\n'
+        '      throw new RangeError.range(index, 0, length);\n'
+        '    return $INDEXED_GETTER(index);\n'
+        '  }\n',
+        TYPE=dart_element_type,
+        INDEXED_GETTER=indexed_getter)
+
   def _HasNativeIndexSetter(self):
     return 'CustomIndexedSetter' in self._interface.ext_attrs
 
   def _EmitNativeIndexSetter(self, element_type):
     dart_declaration = 'void operator[]=(int index, %s value)' % element_type
     self._GenerateNativeBinding('numericIndexSetter', 3, dart_declaration,
         'Callback', True)
 
   def EmitOperation(self, info, html_name):
     """
@@ skipping 500 matching lines @@
             '    if (Dart_NativeFunction func = $CLASS_NAME::resolver(name, argumentCount))\n'
             '        return func;\n',
             CLASS_NAME=os.path.splitext(os.path.basename(path))[0])
 
 def _IsOptionalStringArgumentInInitEventMethod(interface, operation, argument):
   return (
       interface.id.endswith('Event') and
       operation.id.startswith('init') and
       argument.ext_attrs.get('Default') == 'Undefined' and
       argument.type.id == 'DOMString')