Optionally invoke an interceptor on failed access checks

src/elements.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/elements.h"
 
 #include "src/arguments.h"
 #include "src/conversions.h"
 #include "src/factory.h"
 #include "src/isolate-inl.h"
@@ skipping 909 matching lines @@
     }
 
     *nof_items = count;
     return Just(true);
   }
 
   void CollectElementIndices(Handle<JSObject> object,
                              Handle<FixedArrayBase> backing_store,
                              KeyAccumulator* keys) final {
     if (keys->filter() & ONLY_ALL_CAN_READ) return;
+    if (keys->filter() & USE_ACCESS_CHECK_INTERCEPTOR) return;
     Subclass::CollectElementIndicesImpl(object, backing_store, keys);
   }
 
   static void CollectElementIndicesImpl(Handle<JSObject> object,
                                         Handle<FixedArrayBase> backing_store,
                                         KeyAccumulator* keys) {
     DCHECK_NE(DICTIONARY_ELEMENTS, kind());
     // Non-dictionary elements can't have all-can-read accessors.
     uint32_t length = Subclass::GetMaxIndex(*object, *backing_store);
     PropertyFilter filter = keys->filter();
@@ skipping 395 matching lines @@
     }
   }
 
   static Handle<FixedArray> DirectCollectElementIndicesImpl(
       Isolate* isolate, Handle<JSObject> object,
       Handle<FixedArrayBase> backing_store, GetKeysConversion convert,
       PropertyFilter filter, Handle<FixedArray> list, uint32_t* nof_indices,
       uint32_t insertion_index = 0) {
     if (filter & SKIP_STRINGS) return list;
     if (filter & ONLY_ALL_CAN_READ) return list;
+    if (filter & USE_ACCESS_CHECK_INTERCEPTOR) return list;
 
     Handle<SeededNumberDictionary> dictionary =
         Handle<SeededNumberDictionary>::cast(backing_store);
     uint32_t capacity = dictionary->Capacity();
     for (uint32_t i = 0; i < capacity; i++) {
       uint32_t key = GetKeyForEntryImpl(isolate, dictionary, i, filter);
       if (key == kMaxUInt32) continue;
       Handle<Object> index = isolate->factory()->NewNumberFromUint(key);
       list->set(insertion_index, *index);
       insertion_index++;
@@ skipping 1671 matching lines @@
     insertion_index += len;
   }
 
   DCHECK_EQ(insertion_index, result_len);
   return result_array;
 }
 
 ElementsAccessor** ElementsAccessor::elements_accessors_ = NULL;
 }  // namespace internal
 }  // namespace v8