/* | |
* Licensed to the Apache Software Foundation (ASF) under one | |
* or more contributor license agreements. See the NOTICE file | |
* distributed with this work for additional information | |
* regarding copyright ownership. The ASF licenses this file | |
* to you 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.apache.aries.proxy.impl.common; | |
import static org.apache.aries.proxy.impl.common.AbstractWovenProxyAdapter.OBJECT_TYPE; | |
import org.objectweb.asm.MethodVisitor; | |
import org.objectweb.asm.Type; | |
import org.objectweb.asm.commons.Method; | |
/** | |
* Used to create a delegating method implementation for methods with no body | |
*/ | |
public final class WovenProxyAbstractMethodAdapter extends AbstractWovenProxyMethodAdapter { | |
public WovenProxyAbstractMethodAdapter(MethodVisitor mv, int access, String name, | |
String desc, String methodStaticFieldName, Method currentTransformMethod, | |
Type typeBeingWoven, Type methodDeclaringType, boolean isMethodDeclaringTypeInterface, boolean isDefaultMethod) { | |
super(mv, access, name, desc, methodStaticFieldName, currentTransformMethod, | |
typeBeingWoven, methodDeclaringType, isMethodDeclaringTypeInterface, isDefaultMethod); | |
} | |
/** | |
* We write dispatch code here because we have no real method body | |
*/ | |
@Override | |
public final void visitCode() | |
{ | |
//Notify our parent that the method code is starting. This must happen first | |
mv.visitCode(); | |
//unwrap for equals if we need to | |
if(currentTransformMethod.getName().equals("equals") && | |
currentTransformMethod.getArgumentTypes().length == 1 && | |
currentTransformMethod.getArgumentTypes()[0].equals(OBJECT_TYPE)) { | |
unwrapEqualsArgument(); | |
} | |
//No null-check needed | |
//Write the dispatcher code in here | |
writeDispatcher(); | |
} | |
@Override | |
public final void visitMaxs(int stack, int locals) { | |
mv.visitMaxs(stack, locals); | |
} | |
/** | |
* We don't get the code and maxs calls for interfaces, so we add them here | |
*/ | |
@Override | |
public final void visitEnd() { | |
visitCode(); | |
visitMaxs(0, 0); | |
mv.visitEnd(); | |
} | |
} |