| // Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // TODO(jlcontreras): this is a temp file for the valueClass experiment |
| |
| const valueClass = "valueClass"; |
| |
| /// This code is from the dart.math sdk/lib/math/jenkins_smi_hash.dart |
| class JenkinsSmiHash { |
| static int combine(int hash, int value) { |
| hash = 0x1fffffff & (hash + value); |
| hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10)); |
| return hash ^ (hash >> 6); |
| } |
| |
| static int finish(int hash) { |
| hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3)); |
| hash = hash ^ (hash >> 11); |
| return 0x1fffffff & (hash + ((0x00003fff & hash) << 15)); |
| } |
| } |