/*
* Copyright 2014 Lukas Krejci
*
* 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 java.util.Collections;
import java.util.EnumSet;
import java.util.List;
import javax.annotation.Nullable;
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 0.1
*/
public final class NumberOfParametersChanged 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 || isBothPrivate(oldMethod, newMethod)) {
return;
}
if (oldMethod.getModelRepresentation().getParameterTypes().size() != newMethod.getModelRepresentation().getParameterTypes().size()) {
pushActive(oldMethod, newMethod);
}
}
@Nullable
@Override
protected List<Difference> doEnd() {
ActiveElements<JavaMethodElement> methods = popIfActive();
if (methods == null) {
return null;
}
return Collections.singletonList(createDifference(Code.METHOD_NUMBER_OF_PARAMETERS_CHANGED,
Code.attachmentsFor(methods.oldElement, methods.newElement)));
}
}