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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.jface.text;


/**
 * Extension interface for {@link org.eclipse.jface.text.IDocumentPartitioner}.
 * 
 * Replaces the original concept of the document partitioner by returning the
 * minimal region that includes all partition changes caused by the invocation
 * of the document partitioner.
 * The method documentChanged2 is considered the replacement of
 * {@link org.eclipse.jface.text.IDocumentPartitioner#documentChanged(DocumentEvent)}.
 *
 * @since 2.0
 */
public interface IDocumentPartitionerExtension {

	/**
	 * The document has been changed. The partitioner updates the document's
	 * partitioning and returns the minimal region that comprises all partition
	 * changes caused in response to the given document event. This method
	 * returns null if the partitioning did not change.
	 * 

	 *
	 * Will be called by the connected document and is not intended to be used
	 * by clients other than the connected document.
	 * 
	 * Replaces {@link IDocumentPartitioner#documentChanged(DocumentEvent)}.
	 *
	 * @param event the event describing the document change
	 * @return the region of the document in which the partition type changed or null
	 */
	IRegion documentChanged2(DocumentEvent event);
}