jlcontreras
42c4c3c1bd
Change-Id: I542369fc2d8443bb0094fdedc11596fdc2f20e2d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/159084 Commit-Queue: Javier López-Contreras <jlcontreras@google.com> Reviewed-by: Erik Ernst <eernst@google.com> Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
22 lines
792 B
Dart
22 lines
792 B
Dart
// 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));
|
|
}
|
|
}
|