Copyright (c) 2000, 2009 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
/*******************************************************************************
 * Copyright (c) 2000, 2009 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.jdt.internal.core.dom.rewrite;

import org.eclipse.text.edits.TextEdit;
import org.eclipse.text.edits.TextEditGroup;

import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.rewrite.ITrackedNodePosition;
import org.eclipse.jface.text.IRegion;

/**
 *
 */
public class TrackedNodePosition implements ITrackedNodePosition {

	private final TextEditGroup group;
	private final ASTNode node;

	public TrackedNodePosition(TextEditGroup group, ASTNode node) {
		this.group= group;
		this.node= node;
	}

	@Override
	public int getStartPosition() {
		if (this.group.isEmpty()) {
			return this.node.getStartPosition();
		}
		IRegion coverage= TextEdit.getCoverage(this.group.getTextEdits());
		if (coverage == null) {
			return this.node.getStartPosition();
		}
		return coverage.getOffset();
	}

	@Override
	public int getLength() {
		if (this.group.isEmpty()) {
			return this.node.getLength();
		}
		IRegion coverage= TextEdit.getCoverage(this.group.getTextEdits());
		if (coverage == null) {
			return this.node.getLength();
		}
		return coverage.getLength();
	}
}