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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;
/**
* An empty class adapter, which reads and writes Java classes with no intermediate transformation.
*
* @author Eric Bruneton
*/
public abstract class Adapter {
/**
* Returns the version of this class adapter.
*
* @return the version of this class adapter, or an empty string if there is no version.
*/
public String getVersion() {
return "";
}
/**
* Returns the access flags, name, super class and interfaces of the given class.
*
* @param classFile a JVMS ClassFile structure
* @return the access flags, name, super class and interfaces of the given class.
*/
public ClassInfo getClassInfo(final byte[] classFile) {
throw new UnsupportedOperationException();
}
/**
* Returns an in-memory, object representation of the given class.
*
* @param classFile a JVMS ClassFile structure
* @return an in-memory, object representation of the given class.
*/
public Object getClassObjectModel(final byte[] classFile) {
throw new UnsupportedOperationException();
}
/**
* Reads a class and returns the number of 'elements' it contains.
*
* @param classFile a JVMS ClassFile structure
* @return the number of 'elements' found in the given class.
*/
public int read(final byte[] classFile) {
throw new UnsupportedOperationException();
}
/**
* Reads a class and writes and returns an equivalent one.
*
* @param classFile a JVMS ClassFile structure
* @param computeMaxs whether to recompute the maximum stack size and maximum number of local
* variables for each method.
* @return the rebuilt class.
*/
public byte[] readAndWrite(final byte[] classFile, final boolean computeMaxs) {
throw new UnsupportedOperationException();
}
/**
* Reads a class and writes and returns an equivalent one with all its stack map frames
* recomputed.
*
* @param classFile a JVMS ClassFile structure
* @return the rebuilt class.
*/
public byte[] readAndWriteWithComputeFrames(final byte[] classFile) {
throw new UnsupportedOperationException();
}
/**
* Reads a class and writes and returns an equivalent one, sharing the same constant pool.
*
* @param classFile a JVMS ClassFile structure
* @return the rebuilt class.
*/
public byte[] readAndWriteWithCopyPool(final byte[] classFile) {
throw new UnsupportedOperationException();
}
/**
* Reads a class and writes and returns an equivalent one, via the construction of in-memory,
* object representation of the class.
*
* @param classFile a JVMS ClassFile structure
* @return the rebuilt class.
*/
public byte[] readAndWriteWithObjectModel(final byte[] classFile) {
throw new UnsupportedOperationException();
}
/** The access flags, name, super class and interfaces of a class. */
public static class ClassInfo {
int access;
String name;
String superClass;
String[] interfaces;
/**
* Constructs a new {@link ClassInfo}.
*
* @param access the class's access flags.
* @param name the internal name of the class.
* @param superClass the internal of name of the super class.
* @param interfaces the internal names of the class's interfaces
*/
public ClassInfo(
final int access,
final String name,
final String superClass,
final String[] interfaces) { // NOPMD(ArrayIsStoredDirectly): non public API.
this.access = access;
this.name = name;
this.superClass = superClass;
this.interfaces = interfaces;
}
}
}
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