+void JSVariableObject::putDirectVirtual(JSObject*, ExecState*, const Identifier&, JSValue, unsigned)
+{
+ ASSERT_NOT_REACHED();
+}
+
+bool JSVariableObject::isDynamicScope(bool& requiresDynamicChecks) const
+{
+ switch (structure()->typeInfo().type()) {
+ case GlobalObjectType:
+ return static_cast<const JSGlobalObject*>(this)->isDynamicScope(requiresDynamicChecks);
+ case ActivationObjectType:
+ return static_cast<const JSActivation*>(this)->isDynamicScope(requiresDynamicChecks);
+ case StaticScopeObjectType:
+ return static_cast<const JSStaticScopeObject*>(this)->isDynamicScope(requiresDynamicChecks);
+ default:
+ ASSERT_NOT_REACHED();
+ break;
+ }
+
+ return false;
+}
+