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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/* *******************************************************************
 * Copyright (c) 2006 Contributors
 * All rights reserved.
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Public License v 2.0
 * which accompanies this distribution and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
 *
 * Contributors:
 *     Andy Clement                 initial implementation
 * ******************************************************************/
package org.aspectj.weaver.bcel;

import org.aspectj.weaver.patterns.AbstractPatternNodeVisitor;
import org.aspectj.weaver.patterns.AndPointcut;
import org.aspectj.weaver.patterns.IfPointcut;
import org.aspectj.weaver.patterns.NotPointcut;
import org.aspectj.weaver.patterns.OrPointcut;

/**
 * Look for an if() pointcut
 */
class IfFinder extends AbstractPatternNodeVisitor {
	boolean hasIf = false;

	public Object visit(IfPointcut node, Object data) {
		if (node.alwaysFalse() || node.alwaysTrue()) {
			// IfFalse / IfTrue
		} else {
			hasIf = true;
		}
		return node;
	}

	public Object visit(AndPointcut node, Object data) {
		if (!hasIf)
			node.getLeft().accept(this, data);
		if (!hasIf)
			node.getRight().accept(this, data);
		return node;
	}

	public Object visit(NotPointcut node, Object data) {
		if (!hasIf)
			node.getNegatedPointcut().accept(this, data);
		return node;
	}

	public Object visit(OrPointcut node, Object data) {
		if (!hasIf)
			node.getLeft().accept(this, data);
		if (!hasIf)
			node.getRight().accept(this, data);
		return node;
	}
}