Class EmptyRange

src/main/java/groovy/lang/EmptyRange.java:31–215

Constructing Ranges like 0..<0

 * Constructing Ranges like 0..<0
 */
public class EmptyRange<T extends Comparable> extends AbstractList<T> implements Range<T> {

    /**
     * The value at which the range originates (may be <code>null</code>).
     */
    protected T at;

    /**
     * Creates a new {@link EmptyRange}.
     *
     * @param at the value at which the range starts (may be <code>null</code>).
     */
    public EmptyRange(T at) {
        this.at = at;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public T getFrom() {
        return at;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public T getTo() {
        return at;
    }

    /**
     * Never true for an empty range.
     *
     * @return <code>false</code>
     */
    @Override
    public boolean isReverse() {
        return false;
    }

    /**
     * Never true for an empty range.
     *
     * @return <code>false</code>
     */
    @Override
    public boolean containsWithinBounds(Object o) {
        return false;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String inspect() {
        return FormatHelper.inspect(at) + "..<" + FormatHelper.inspect(at);