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The AspectJ matcher can be used for matching pointcuts independently of any AspectJ compilation or weaving steps. Most notably, this can be used by frameworks such as Spring AOP which utilise the @AspectJ pointcut syntax but implement aspect weaving in a way independent of AspectJ, e.g. using dynamic proxies.

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/* *******************************************************************
 * Copyright (c) 2019 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
 *
 * ******************************************************************/
package org.aspectj.weaver.patterns;

/**
 * @author Tuomas Kiviaho
 */
public class WildChildFinder extends AbstractPatternNodeVisitor {

	private boolean wildChild;

	public WildChildFinder() {
		super();
	}

	public boolean containedWildChild() {
		return wildChild;
	}

	@Override
	public Object visit(WildAnnotationTypePattern node, Object data) {
		node.getTypePattern().accept(this, data);
		return node;
	}

	@Override
	public Object visit(WildTypePattern node, Object data) {
		this.wildChild = true;
		return super.visit(node, data);
	}

	@Override
	public Object visit(AndTypePattern node, Object data) {
		node.getLeft().accept(this, data);
		if (!this.wildChild) {
			node.getRight().accept(this, data);
		}
		return node;
	}

	@Override
	public Object visit(OrTypePattern node, Object data) {
		node.getLeft().accept(this, data);
		if (!this.wildChild) {
			node.getRight().accept(this, data);
		}
		return node;
	}

	public Object visit(NotTypePattern node, Object data) {
		node.getNegatedPattern().accept(this, data);
		return node;
	}

	@Override
	public Object visit(AnyWithAnnotationTypePattern node, Object data) {
		node.getAnnotationPattern().accept(this, data);
		return node;
	}

}