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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) 2000, 2005 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.core.internal.watson;

/**
 * An interface for objects which can visit an element of
 * an element tree and access that element's node info.
 * @see ElementTreeIterator
 */
public interface IElementContentVisitor {
	/** Visits a node (element).
	 *  Note that elementContents is equal totree.
	 * getElement(elementPath) but takes no time.
	 * @param tree the element tree being visited
	 * @param elementContents the object at the node being visited on this call
	 * @param requestor callback object for requesting the path of the object being
	 * visited.
	 * @return true if this element's children should be visited, and false
	 * otherwise.
	 */
	boolean visitElement(ElementTree tree, IPathRequestor requestor, Object elementContents);
}