1 files changed, 10 insertions, 3 deletions
diff --git a/Source/JavaScriptCore/runtime/IndexingHeaderInlineMethods.h b/Source/JavaScriptCore/runtime/IndexingHeaderInlineMethods.h
index e1d893b0b..22785ce24 100644
--- a/Source/JavaScriptCore/runtime/IndexingHeaderInlineMethods.h
+++ b/Source/JavaScriptCore/runtime/IndexingHeaderInlineMethods.h
@@ -42,10 +42,17 @@ inline size_t IndexingHeader::preCapacity(Structure* structure)
 
 inline size_t IndexingHeader::indexingPayloadSizeInBytes(Structure* structure)
 {
-    if (LIKELY(!hasArrayStorage(structure->indexingType())))
+    switch (structure->indexingType()) {
+    case ALL_CONTIGUOUS_INDEXING_TYPES:
+        return vectorLength() * sizeof(EncodedJSValue);
+        
+    case ALL_ARRAY_STORAGE_INDEXING_TYPES:
+        return ArrayStorage::sizeFor(arrayStorage()->vectorLength());
+        
+    default:
+        ASSERT(!hasIndexedProperties(structure->indexingType()));
         return 0;
-    
-    return ArrayStorage::sizeFor(arrayStorage()->vectorLength());
+    }
 }
 
 } // namespace JSC