| // 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. | |
| @cppObjectLayoutDefinition | |
| extern class HeapNumber extends PrimitiveHeapObject { | |
| // TODO(v8:13070): With 8GB+ pointer compression, the number in a HeapNumber | |
| // is unaligned. Modify the HeapNumber layout so it remains aligned. | |
| value: float64; | |
| } | |
| // The HeapNumber value NaN | |
| type NaN extends HeapNumber; |