Map operator [] directly to native implementation.

lib/dom/scripts/systemnative.py

Index: lib/dom/scripts/systemnative.py
diff --git a/lib/dom/scripts/systemnative.py b/lib/dom/scripts/systemnative.py
index 8a316e8e8930643b09f3cd77af4a1de03f2eb1cb..9429cadb82f9d3fadda3f652c835a2fb4922529a 100644
--- a/lib/dom/scripts/systemnative.py
+++ b/lib/dom/scripts/systemnative.py
@@ -675,10 +675,8 @@ class NativeImplementationGenerator(object):
     else:
       self._members_emitter.Emit(
           '\n'
-          '  $TYPE operator[](int index) {\n'
-          '    return item(index);\n'
-          '  }\n',
-          TYPE=dart_element_type)
+          '  $TYPE operator[](int index) native "$(INTERFACE)_item_Callback";\n',
+          TYPE=dart_element_type, INTERFACE=self._interface.id)
 
     if self._HasNativeIndexSetter():
       self._EmitNativeIndexSetter(dart_element_type)
@@ -755,7 +753,7 @@ class NativeImplementationGenerator(object):
 
     if not html_name and info.name == 'item':
       # FIXME: item should be renamed to operator[], not removed.
-      html_name = 'item'
+      html_name = '_item'

[Anton Muhin, 2012/06/05 16:38:51]

do we need it still?

[podivilov, 2012/06/05 16:45:25]

Yes, we still need to generate native implementation.

[Anton Muhin, 2012/06/05 16:49:19]

Ok, thanks.
On 2012/06/05 16:45:25, podivilov wrote:

 
     if not html_name:
       return