RecoveryScannerData.java

/*******************************************************************************
 * Copyright (c) 2006, 2009 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/

package org.eclipse.jdt.internal.compiler.parser;

public class RecoveryScannerData {
	public int insertedTokensPtr= -1;

	public int[][] insertedTokens;

	public int[] insertedTokensPosition;

	public boolean[] insertedTokenUsed;

	public int replacedTokensPtr= -1;

	public int[][] replacedTokens;

	public int[] replacedTokensStart;

	public int[] replacedTokensEnd;

	public boolean[] replacedTokenUsed;

	public int removedTokensPtr= -1;

	public int[] removedTokensStart;

	public int[] removedTokensEnd;

	public boolean[] removedTokenUsed;

	public RecoveryScannerData removeUnused() {
		if (this.insertedTokens != null) {
			int newInsertedTokensPtr= -1;
			for (int i= 0; i <= this.insertedTokensPtr; i++) {
				if (this.insertedTokenUsed[i]) {
					newInsertedTokensPtr++;
					this.insertedTokens[newInsertedTokensPtr]= this.insertedTokens[i];
					this.insertedTokensPosition[newInsertedTokensPtr]= this.insertedTokensPosition[i];
					this.insertedTokenUsed[newInsertedTokensPtr]= this.insertedTokenUsed[i];
				}
			}
			this.insertedTokensPtr= newInsertedTokensPtr;
		}

		if (this.replacedTokens != null) {
			int newReplacedTokensPtr= -1;
			for (int i= 0; i <= this.replacedTokensPtr; i++) {
				if (this.replacedTokenUsed[i]) {
					newReplacedTokensPtr++;
					this.replacedTokens[newReplacedTokensPtr]= this.replacedTokens[i];
					this.replacedTokensStart[newReplacedTokensPtr]= this.replacedTokensStart[i];
					this.replacedTokensEnd[newReplacedTokensPtr]= this.replacedTokensEnd[i];
					this.replacedTokenUsed[newReplacedTokensPtr]= this.replacedTokenUsed[i];
				}
			}
			this.replacedTokensPtr= newReplacedTokensPtr;
		}
		if (this.removedTokensStart != null) {
			int newRemovedTokensPtr= -1;
			for (int i= 0; i <= this.removedTokensPtr; i++) {
				if (this.removedTokenUsed[i]) {
					newRemovedTokensPtr++;
					this.removedTokensStart[newRemovedTokensPtr]= this.removedTokensStart[i];
					this.removedTokensEnd[newRemovedTokensPtr]= this.removedTokensEnd[i];
					this.removedTokenUsed[newRemovedTokensPtr]= this.removedTokenUsed[i];
				}
			}
			this.removedTokensPtr= newRemovedTokensPtr;
		}

		return this;
	}
}