diff options
Diffstat (limited to 'js/src/builtin/Map.js')
| -rw-r--r-- | js/src/builtin/Map.js | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/js/src/builtin/Map.js b/js/src/builtin/Map.js index 580629a13..434cd6529 100644 --- a/js/src/builtin/Map.js +++ b/js/src/builtin/Map.js @@ -62,8 +62,8 @@ function MapIteratorNext() { var O = this; // Steps 2-3. - if (!IsObject(O) || !IsMapIterator(O)) - return callFunction(CallMapIteratorMethodIfWrapped, O, "MapIteratorNext"); + if (!IsObject(O) || (O = GuardToMapIterator(O)) === null) + return callFunction(CallMapIteratorMethodIfWrapped, this, "MapIteratorNext"); // Steps 4-5 (implemented in _GetNextMapEntryForIterator). // Steps 8-9 (omitted). @@ -82,7 +82,7 @@ function MapIteratorNext() { // Steps 10.b-c (omitted). // Step 6. - var itemKind = UnsafeGetInt32FromReservedSlot(this, ITERATOR_SLOT_ITEM_KIND); + var itemKind = UnsafeGetInt32FromReservedSlot(O, ITERATOR_SLOT_ITEM_KIND); var result; if (itemKind === ITEM_KIND_KEY) { |