TypedLinkedList.java

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * This file is part of SableCC.                             *
 * See the file "LICENSE" for copyright information and the  *
 * terms and conditions for copying, distribution and        *
 * modification of SableCC.                                  *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

package org.sablecc.sablecc;

import java.util.Collection;
import java.util.LinkedList;
import java.util.ListIterator;

@SuppressWarnings({"rawtypes", "unchecked"})
public class TypedLinkedList extends LinkedList {
    Cast cast;

    public TypedLinkedList() {
        super();

        cast = NoCast.instance;
    }

    public TypedLinkedList(Collection c) {
        super(c);

        cast = NoCast.instance;
    }

    public TypedLinkedList(Cast cast) {
        super();

        this.cast = cast;
    }

    public TypedLinkedList(Collection c, Cast cast) {
        super(c);

        this.cast = cast;
    }

    public Cast getCast() {
        return cast;
    }

    @Override
    public void addFirst(Object o) {
        super.addFirst(cast.cast(o));
    }

    @Override
    public void addLast(Object o) {
        super.addLast(cast.cast(o));
    }

    @Override
    public ListIterator listIterator(int index) {
        return new TypedLinkedListIterator(super.listIterator(index));
    }

    private class TypedLinkedListIterator implements ListIterator {
        ListIterator iterator;

        TypedLinkedListIterator(ListIterator iterator) {
            this.iterator = iterator;
        }

        @Override
        public boolean hasNext() {
            return iterator.hasNext();
        }

        @Override
        public Object next() {
            return iterator.next();
        }

        @Override
        public boolean hasPrevious() {
            return iterator.hasPrevious();
        }

        @Override
        public Object previous() {
            return iterator.previous();
        }

        @Override
        public int nextIndex() {
            return iterator.nextIndex();
        }

        @Override
        public int previousIndex() {
            return iterator.previousIndex();
        }

        @Override
        public void remove
                () {
            iterator.remove();
        }

        @Override
        public void set
                (Object o) {
            iterator.set(cast.cast(o));
        }

        @Override
        public void add
                (Object o) {
            iterator.add(cast.cast(o));
        }
    }
}