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25 
26 package jdk.nashorn.internal.runtime.arrays;
27 
28 import java.util.List;
29 
30 /**
31  * Reverse iterator over a List
32  */
33 final class ReverseJavaListIterator extends JavaListIterator {
34     /**
35      * Constructor
36      * @param list list to iterate over
37      * @param includeUndefined should undefined elements be included in iteration
38      */
ReverseJavaListIterator(final List<?> list, final boolean includeUndefined)39     public ReverseJavaListIterator(final List<?> list, final boolean includeUndefined) {
40         super(list, includeUndefined);
41         this.index = list.size() - 1;
42     }
43 
44     @Override
isReverse()45     public boolean isReverse() {
46         return true;
47     }
48 
49     @Override
indexInArray()50     protected boolean indexInArray() {
51         return index >= 0;
52     }
53 
54     @Override
bumpIndex()55     protected long bumpIndex() {
56         return index--;
57     }
58 }
59