/*******************************************************************************
* Copyright (c) 2009-2013 CWI
* 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:
* * Arnold Lankamp - Arnold.Lankamp@cwi.nl
*******************************************************************************/
package org.rascalmpl.parser.gtd.util;
public class IntegerList{
private final static int DEFAULT_SIZE = 8;
private int[] data;
private int size;
public IntegerList(){
super();
data = new int[DEFAULT_SIZE];
size = 0;
}
public IntegerList(int initialSize){
super();
data = new int[initialSize];
size = 0;
}
public void enlarge(){
int[] oldData = data;
data = new int[size << 1];
System.arraycopy(oldData, 0, data, 0, size);
}
public void add(int integer){
while(size >= data.length){
enlarge();
}
data[size++] = integer;
}
public int get(int index){
return data[index];
}
public boolean contains(int integer){
for(int i = size - 1; i >= 0; --i){
if(data[i] == integer) return true;
}
return false;
}
public boolean containsBefore(int integer, int limit){
for(int i = limit - 1; i >= 0; --i){
if(data[i] == integer) return true;
}
return false;
}
public int size(){
return size;
}
public void clear(){
size = 0;
}
public int[] getBackingArray(){
return data;
}
}