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RemoveFieldAdapter.java
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RemoveFieldAdapter.java
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/***
* ASM Guide
* Copyright (c) 2007 Eric Bruneton, 2011 Google
* 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 ch2.sec2;
import static org.objectweb.asm.Opcodes.ASM4;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.FieldVisitor;
/**
* ASM Guide example class.
*
* @author Eric Bruneton
*/
public class RemoveFieldAdapter extends ClassVisitor {
private String fieldName;
public RemoveFieldAdapter(ClassVisitor cv, String fieldName) {
super(ASM4, cv);
this.fieldName = fieldName;
}
public FieldVisitor visitField(int access, String name, String desc,
String signature, Object value) {
if (name.equals(fieldName)) {
// do not delegate to next visitor -> this removes the field
return null;
}
return cv.visitField(access, name, desc, signature, value);
}
}