ES6: Implement WeakSet

src/objects-visiting-inl.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 71 matching lines @@
   table_.Register(kVisitJSArrayBuffer, &VisitJSArrayBuffer);
 
   table_.Register(kVisitJSTypedArray, &VisitJSTypedArray);
 
   table_.Register(kVisitJSDataView, &VisitJSDataView);
 
   table_.Register(kVisitFreeSpace, &VisitFreeSpace);
 
   table_.Register(kVisitJSWeakMap, &JSObjectVisitor::Visit);
 
+  table_.Register(kVisitJSWeakSet, &JSObjectVisitor::Visit);
+
   table_.Register(kVisitJSRegExp, &JSObjectVisitor::Visit);
 
   table_.template RegisterSpecializations<DataObjectVisitor,
                                           kVisitDataObject,
                                           kVisitDataObjectGeneric>();
 
   table_.template RegisterSpecializations<JSObjectVisitor,
                                           kVisitJSObject,
                                           kVisitJSObjectGeneric>();
   table_.template RegisterSpecializations<StructVisitor,
@@ skipping 89 matching lines @@
                   void>::Visit);
 
   table_.Register(kVisitByteArray, &DataObjectVisitor::Visit);
 
   table_.Register(kVisitFreeSpace, &DataObjectVisitor::Visit);
 
   table_.Register(kVisitSeqOneByteString, &DataObjectVisitor::Visit);
 
   table_.Register(kVisitSeqTwoByteString, &DataObjectVisitor::Visit);
 
-  table_.Register(kVisitJSWeakMap, &StaticVisitor::VisitJSWeakMap);
+  table_.Register(kVisitJSWeakMap, &StaticVisitor::VisitWeakCollection);
+
+  table_.Register(kVisitJSWeakSet, &StaticVisitor::VisitWeakCollection);
 
   table_.Register(kVisitOddball,
                   &FixedBodyVisitor<StaticVisitor,
                   Oddball::BodyDescriptor,
                   void>::Visit);
 
   table_.Register(kVisitMap, &VisitMap);
 
   table_.Register(kVisitCode, &VisitCode);
 
@@ skipping 666 matching lines @@
   RelocIterator it(this, mode_mask);
   for (; !it.done(); it.next()) {
     it.rinfo()->template Visit<StaticVisitor>(heap);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_VISITING_INL_H_