| /* |
| * Copyright 2008 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 java.lang; |
| |
| import com.google.gwt.core.client.JavaScriptObject; |
| import com.google.gwt.core.client.impl.Impl; |
| |
| /** |
| * The superclass of all other types. The GWT emulation library supports a |
| * limited subset of methods on <code>Object</code> due to browser |
| * limitations. The methods documented here are the only ones available. |
| */ |
| public class Object { |
| |
| /** |
| * Used by {@link com.google.gwt.core.client.impl.WeakMapping} in web mode |
| * to store an expando containing a String -> Object mapping. |
| * |
| * @skip |
| */ |
| @SuppressWarnings("unused") |
| private transient JavaScriptObject expando; |
| |
| /** |
| * A JavaScript Json map for looking up castability between types. |
| * |
| * @skip |
| */ |
| @SuppressWarnings("unused") |
| private transient JavaScriptObject castableTypeMap; |
| |
| /** |
| * magic magic magic. |
| * |
| * @skip |
| */ |
| @SuppressWarnings("unused") |
| private transient JavaScriptObject typeMarker; |
| |
| public boolean equals(Object other) { |
| return this == other; |
| } |
| |
| /* |
| * Magic; unlike the real JRE, we don't spec this method as final. The |
| * compiler will generate a polymorphic override on every other class which |
| * will return the correct class object. |
| * |
| * TODO(scottb): declare this final, but have the compiler fix it up. |
| */ |
| public Class<? extends Object> getClass() { |
| return Object.class; |
| } |
| |
| public int hashCode() { |
| return Impl.getHashCode(this); |
| } |
| |
| public String toString() { |
| return getClass().getName() + '@' + Integer.toHexString(hashCode()); |
| } |
| |
| /** |
| * Never called; here for compatibility. |
| * |
| * @skip |
| */ |
| protected void finalize() throws Throwable { |
| } |
| } |