| // Copyright 2019 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. | |
| @abstract | |
| @doNotGenerateCast | |
| @doNotGenerateCppClass | |
| extern class HeapObject extends StrongTagged { | |
| const map: Map; | |
| } |