Module igormaznitsa.prolog.parser

Package com.igormaznitsa.prologparser.tokenizer

Enum OpAssoc

java.lang.Object

java.lang.Enum<OpAssoc>

com.igormaznitsa.prologparser.tokenizer.OpAssoc

All Implemented Interfaces:

Serializable, Comparable<OpAssoc>

public enum OpAssoc
extends Enum<OpAssoc>

Associativity of Prolog operators.

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.

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 type with the specified name.
static OpAssoc[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

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.

Method Detail

values

public static OpAssoc[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (OpAssoc c : OpAssoc.values())
    System.out.println(c);

Returns:

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

valueOf

public static OpAssoc valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type 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()