/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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 org.revapi.java.checks.methods;
import static org.revapi.java.checks.common.ModifierChanged.stringify;
import java.util.Collections;
import java.util.EnumSet;
import java.util.List;
import javax.annotation.Nullable;
import javax.lang.model.element.ElementKind;
import org.revapi.Difference;
import org.revapi.java.spi.CheckBase;
import org.revapi.java.spi.Code;
import org.revapi.java.spi.JavaMethodElement;
/**
* @author Lukas Krejci
* @since 0.4.0
*/
public class NowDefault extends CheckBase {
@Override
public EnumSet<Type> getInterest() {
return EnumSet.of(Type.METHOD);
}
@Override
protected void doVisitMethod(@Nullable JavaMethodElement oldMethod, @Nullable JavaMethodElement newMethod) {
if (oldMethod == null || newMethod == null) {
return;
}
boolean onInterfaces = oldMethod.getParent().getDeclaringElement().getKind() == ElementKind.INTERFACE
&& newMethod.getParent().getDeclaringElement().getKind() == ElementKind.INTERFACE;
if (onInterfaces && !oldMethod.getDeclaringElement().isDefault() && newMethod.getDeclaringElement().isDefault()) {
pushActive(oldMethod, newMethod);
}
}
@Override
protected @Nullable List<Difference> doEnd() {
CheckBase.ActiveElements<JavaMethodElement> methods = popIfActive();
if (methods == null) {
return null;
}
return Collections.singletonList(createDifference(Code.METHOD_NOW_DEFAULT,
Code.attachmentsFor(methods.oldElement, methods.newElement,
"oldModifiers", stringify(methods.oldElement.getDeclaringElement().getModifiers()),
"newModifiers", stringify(methods.newElement.getDeclaringElement().getModifiers()))));
}
}