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

}