/*******************************************************************************
* Copyright (c) 2006 IBM
* 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:
* Andy Clement - initial API and implementation
*******************************************************************************/
package org.aspectj.weaver;
import org.aspectj.bridge.IMessage;
import org.aspectj.bridge.MessageUtil;
import org.aspectj.weaver.patterns.AbstractPatternNodeVisitor;
import org.aspectj.weaver.patterns.AndPointcut;
import org.aspectj.weaver.patterns.KindedPointcut;
import org.aspectj.weaver.patterns.NotPointcut;
import org.aspectj.weaver.patterns.OrPointcut;
import org.aspectj.weaver.patterns.Pointcut;
/**
* Walks a pointcut and determines if the synchronization related designators have been used: lock() or unlock()
*/
public class PoliceExtensionUse extends AbstractPatternNodeVisitor {
private boolean synchronizationDesignatorEncountered;
private World world;
private Pointcut p;
public PoliceExtensionUse(World w, Pointcut p) {
this.world = w;
this.p = p;
this.synchronizationDesignatorEncountered = false;
}
public boolean synchronizationDesignatorEncountered() {
return synchronizationDesignatorEncountered;
}
public Object visit(KindedPointcut node, Object data) {
if (world == null)
return super.visit(node, data); // error scenario can sometimes lead to this LazyClassGen.toLongString()
if (node.getKind() == Shadow.SynchronizationLock || node.getKind() == Shadow.SynchronizationUnlock)
synchronizationDesignatorEncountered = true;
// Check it!
if (!world.isJoinpointSynchronizationEnabled()) {
if (node.getKind() == Shadow.SynchronizationLock) {
IMessage m = MessageUtil.warn(
"lock() pointcut designator cannot be used without the option -Xjoinpoints:synchronization", p
.getSourceLocation());
world.getMessageHandler().handleMessage(m);
} else if (node.getKind() == Shadow.SynchronizationUnlock) {
IMessage m = MessageUtil.warn(
"unlock() pointcut designator cannot be used without the option -Xjoinpoints:synchronization", p
.getSourceLocation());
world.getMessageHandler().handleMessage(m);
}
}
return super.visit(node, data);
}
public Object visit(AndPointcut node, Object data) {
node.getLeft().accept(this, data);
node.getRight().accept(this, data);
return node;
}
public Object visit(NotPointcut node, Object data) {
node.getNegatedPointcut().accept(this, data);
return node;
}
public Object visit(OrPointcut node, Object data) {
node.getLeft().accept(this, data);
node.getRight().accept(this, data);
return node;
}
}