flabbergast.RamblingIterator Maven / Gradle / Ivy

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package flabbergast;

import java.util.Iterator;
import java.util.Stack;

public final class RamblingIterator implements Iterator {

    public interface GetNext {
        public T ramblingNext(Stack> stack);
    }

    private Stack> stack = new Stack>();

    public RamblingIterator(GetNext first) {
        stack.push(first);
    }

    @Override
    public boolean hasNext() {
        return !stack.isEmpty();
    }

    @Override
    public T next() {
        return stack.pop().ramblingNext(stack);
    }

    @Override
    public void remove() {
        throw new UnsupportedOperationException();

    }

}