/*
* Copyright 2016 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package javaemul.internal;
/**
* Utility class to generate hash code for Objects.
*/
class ObjectHashing {
private static int nextHashId = 0;
private static final String HASH_CODE_PROPERTY = "$H";
public static native int getHashCode(Object o) /*-{
return o.$H || (o.$H = @ObjectHashing::getNextHashId()());
}-*/;
/**
* Called from JSNI. Do not change this implementation without updating:
* <ul>
* <li>{@link com.google.gwt.user.client.rpc.impl.SerializerBase}</li>
* </ul>
*/
private static int getNextHashId() {
return ++nextHashId;
}
}