Implement LookupIterator designed to replace LookupResult

src/ic.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/codegen.h"
@@ skipping 607 matching lines @@
   if (!lookup.IsFound()) {
     if (IsUndeclaredGlobal(object)) {
       return ReferenceError("not_defined", name);
     }
     LOG(isolate(), SuspectReadEvent(*name, *object));
   }
 
   // Update inline cache and stub cache.
   if (use_ic) UpdateCaches(&lookup, object, name);
 
-  PropertyAttributes attr;
   // Get the property.
+  LookupIterator it(object, name);
   Handle<Object> result;
   ASSIGN_RETURN_ON_EXCEPTION(
-      isolate(),
-      result,
-      Object::GetProperty(object, object, &lookup, name, &attr),
-      Object);
+      isolate(), result, Object::GetProperty(&it), Object);
   // If the property is not present, check if we need to throw an exception.
   if ((lookup.IsInterceptor() || lookup.IsHandler()) &&
-      attr == ABSENT && IsUndeclaredGlobal(object)) {
+      !it.IsFound() && IsUndeclaredGlobal(object)) {
     return ReferenceError("not_defined", name);
   }
 
   return result;
 }
 
 
 static bool AddOneReceiverMapIfMissing(MapHandleList* receiver_maps,
                                        Handle<Map> new_receiver_map) {
   ASSERT(!new_receiver_map.is_null());
@@ skipping 2434 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal