com.google.gwt.emul.java.lang.Comparable Maven / Gradle / Ivy
/*
* Copyright 2007 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 javaemul.internal.JsUtils;
import jsinterop.annotations.JsMethod;
/**
* An interface used a basis for implementing custom ordering. [Sun
* docs]
*
* @param the type to compare to.
*/
public interface Comparable {
int compareTo(T other);
// CHECKSTYLE_OFF: Utility methods.
@JsMethod
static boolean $isInstance(HasComparableTypeMarker instance) {
String type = JsUtils.typeOf(instance);
if (type.equals("boolean") || type.equals("number") || type.equals("string")) {
return true;
}
return instance != null && instance.getTypeMarker() == true;
}
// CHECKSTYLE_ON: end utility methods
}