Package org.rapidcow.trivnote.libexpr

Enum Class Nil

java.lang.Object

java.lang.Enum<Nil>

org.rapidcow.trivnote.libexpr.Nil

All Implemented Interfaces:

Serializable, Comparable<Nil>, Constable, Iterable<Datum>, Datum

public enum Nil
extends Enum<Nil>
implements Datum, Iterable<Datum>

The atom devoid of value and the empty list.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
INSTANCE	The singleton that represents nil.

Method Summary

Modifier and Type	Method	Description
Iterator<Datum>	iterator()	Returns a list iterator for this.
static Nil	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Nil[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.rapidcow.trivnote.libexpr.Datum

isAtom, isList

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Enum Constant Details

INSTANCE

public static final Nil INSTANCE

The singleton that represents nil.

Method Details

values

public static Nil[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static Nil valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

iterator

public Iterator<Datum> iterator()

Returns a list iterator for this.

Specified by:

iterator in interface Iterable<Datum>

Returns:

a list iterator for this