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/*
* Copyright (C) 2025, NVIDIA Corporation.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.util;
import java.util.Iterator;
/**
* Utility class for Iterators
*
* @since 6.10.2
*/
public class Iterators {
/**
* Create an iterator which traverses an array in reverse.
*
* @param array T[]
* @return Iterator<T>
*/
public static <T> Iterator<T> reverseIterator(T[] array) {
return new Iterator<>() {
int index = array.length;
@Override
public boolean hasNext() {
return index > 0;
}
@Override
public T next() {
return array[--index];
}
};
}
/**
* Make an iterable for easy use in modern for loops.
*
* @param iterator Iterator<T>
* @return Iterable<T>
*/
public static <T> Iterable<T> iterable(Iterator<T> iterator) {
return new Iterable<>() {
@Override
public Iterator<T> iterator() {
return iterator;
}
};
}
}
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