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- /*******************************************************************************
- * 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;
- }
-
- }
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