org.aspectj.apache.bcel.generic.Tag Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of aspectjtools Show documentation
Show all versions of aspectjtools Show documentation
Tools from the AspectJ project
/* *******************************************************************
* Copyright (c) 2002 Contributors
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v1.0
* which accompanies this distribution and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* PARC initial implementation
* Andy Clement pushed down into bcel module
* ******************************************************************/
package org.aspectj.apache.bcel.generic;
/**
* A tag is an instruction-targeter that does not remember its target. Instruction handles will maintain a list of targeters but
* there won't be a way to get back from the tag to the instruction. Maintaining these backward/forward links just slows everything
* down.
*/
public abstract class Tag implements InstructionTargeter, Cloneable {
public Tag() {
}
// ---- from InstructionTargeter
public boolean containsTarget(InstructionHandle ih) {
return false;
}
public void updateTarget(InstructionHandle oldHandle, InstructionHandle newHandle) {
oldHandle.removeTargeter(this);
if (newHandle != null) {
newHandle.addTargeter(this);
}
}
public Tag copy() {
try {
return (Tag) clone();
} catch (CloneNotSupportedException e) {
throw new RuntimeException("Sanity check, can't clone me");
}
}
}