Better support for the case of typed arrays inheriting from other typed arrays.

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 ce44203b7e151aa64194bff285ec4abe05a5aa67..8bdb1791c7a0740e1153cdcf1bfcef21882292ae 100644
--- a/lib/dom/scripts/systemnative.py
+++ b/lib/dom/scripts/systemnative.py
@@ -247,6 +247,13 @@ class NativeImplementationGenerator(systemwrapping.WrappingInterfaceGenerator):
 
     self._GenerateConstructors()
 
+    # Ugly corner case: in WebKit Uint8ClampedArray inherits from Uint8Array,

[podivilov, 2012/05/11 12:34:44]

Please use AddIndexer. Looks like we need to fork DartGenerator for native
system to implement it properly.

[podivilov, 2012/05/11 14:18:17]

Done.

+    # but Uint8Array::{g,s}et is not virtual, so one needs to have an override
+    # for operator[] and operator[]= for Uint8ClampedArray.
+    if self._interface.id == 'Uint8ClampedArray':
+      self._EmitNativeIndexGetter(self._interface, 'int')
+      self._EmitNativeIndexSetter(self._interface, 'int')
+
   def _GenerateConstructors(self):
     if not self._IsConstructable():
       return