Package com.igormaznitsa.prologparser.tokenizer

Enum Class OpAssoc

java.lang.Object

java.lang.Enum<OpAssoc>

com.igormaznitsa.prologparser.tokenizer.OpAssoc

All Implemented Interfaces:

Serializable, Comparable<OpAssoc>, Constable

public enum OpAssoc
extends Enum<OpAssoc>

Associativity of Prolog operators.

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
FX	Prefix, non-associative.
FY	Prefix, associative.
XF	Postfix, non-associative.
XFX	Infix, non-associative.
XFY	Infix, right-associative.
YF	Postfix, associative.
YFX	Infix, left-associative.

Field Summary

Fields

Modifier and Type	Field	Description
private final int	arity
private final String	text

Constructor Summary

Constructors

Modifier	Constructor	Description
private	OpAssoc(String text, int arity)

Method Summary

Modifier and Type	Method	Description
static Optional<OpAssoc>	findForName(String str)
int	getArity()
String	getText()
boolean	isPostfix()
boolean	isPrefix()
static OpAssoc	valueOf(String name)	Returns the enum constant of this class with the specified name.
static OpAssoc[]	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

Enum Constant Details

XF

public static final OpAssoc XF

Postfix, non-associative.

YF

public static final OpAssoc YF

Postfix, associative.

FX

public static final OpAssoc FX

Prefix, non-associative.

FY

public static final OpAssoc FY

Prefix, associative.

XFX

public static final OpAssoc XFX

Infix, non-associative.

XFY

public static final OpAssoc XFY

Infix, right-associative.

YFX

public static final OpAssoc YFX

Infix, left-associative.

Field Details

text

private final String text

arity

private final int arity

Constructor Details

OpAssoc

private OpAssoc(String text,
 int arity)

Method Details

values

public static OpAssoc[] 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 OpAssoc 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

findForName

public static Optional<OpAssoc> findForName(String str)

isPostfix

public boolean isPostfix()

isPrefix

public boolean isPrefix()

getArity

public int getArity()

getText

public String getText()