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// ASM: a very small and fast Java bytecode manipulation framework
// Copyright (c) 2000-2011 INRIA, France Telecom
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holders nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
package org.objectweb.asm.benchmarks;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import org.aspectj.apache.bcel.classfile.ClassFormatException;
import org.aspectj.apache.bcel.classfile.ClassParser;
import org.aspectj.apache.bcel.classfile.ConstantPool;
import org.aspectj.apache.bcel.classfile.JavaClass;
import org.aspectj.apache.bcel.classfile.Method;
import org.aspectj.apache.bcel.generic.ClassGen;
import org.aspectj.apache.bcel.generic.InstructionHandle;
import org.aspectj.apache.bcel.generic.InstructionList;
import org.aspectj.apache.bcel.generic.MethodGen;
/**
* An {@link Adapter} implemented with the AspectJ BCEL library.
*
* @author Eric Bruneton
*/
public class AspectjBcelAdapter extends Adapter {
@Override
public byte[] readAndWrite(final byte[] classFile, final boolean computeMaxs) {
JavaClass javaClass;
try {
javaClass = new ClassParser(new ByteArrayInputStream(classFile), "class-name").parse();
} catch (ClassFormatException | IOException e) {
throw new IllegalArgumentException(e);
}
ClassGen classGen = new ClassGen(javaClass);
ConstantPool constantPool = classGen.getConstantPool();
for (Method method : classGen.getMethods()) {
MethodGen methodGen = new MethodGen(method, classGen.getClassName(), constantPool);
if (method.getLocalVariableTable() == null) {
methodGen.removeLocalVariables();
}
if (method.getLineNumberTable() == null) {
methodGen.removeLineNumbers();
}
InstructionList insnList = methodGen.getInstructionList();
if (insnList != null) {
InstructionHandle insnHandle = insnList.getStart();
while (insnHandle != null) {
insnHandle = insnHandle.getNext();
}
if (computeMaxs) {
methodGen.setMaxStack();
methodGen.setMaxLocals();
}
}
classGen.replaceMethod(method, methodGen.getMethod());
}
return classGen.getJavaClass().getBytes();
}
}
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