/*
* Copyright 2014 Stefan Mandel, Urs Metz
*
* 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.pitest.mutationtest.engine.gregor.mutators;
import org.objectweb.asm.MethodVisitor;
import org.pitest.mutationtest.engine.gregor.MethodInfo;
import org.pitest.mutationtest.engine.gregor.MethodMutatorFactory;
import org.pitest.mutationtest.engine.gregor.MutationContext;
/**
* Mutator for non-void methods that have a parameter that matches the return
* type: it replaces the result of the method call with a parameter. E. g. the
* method call
*
* <pre>
* public int originalMethod() {
* int someInt = 3;
* return someOtherMethod(someInt);
* }
*
* private int someOtherMethod(int parameter) {
* return parameter + 1;
* }
* </pre>
*
* is mutated to
*
* <pre>
* public int mutatedMethod() {
* int someInt = 3;
* return someInt;
* }
* </pre>
*/
public enum ArgumentPropagationMutator implements MethodMutatorFactory {
ARGUMENT_PROPAGATION_MUTATOR;
@Override
public MethodVisitor create(final MutationContext context,
final MethodInfo methodInfo, final MethodVisitor methodVisitor) {
return new ArgumentPropagationVisitor(context, methodVisitor, this);
}
@Override
public String getGloballyUniqueId() {
return this.getClass().getName();
}
@Override
public String getName() {
return name();
}
}