me.jaimegarza.syntax.model.parser

Enum Associativity

java.lang.Object

java.lang.Enum<Associativity>

me.jaimegarza.syntax.model.parser.Associativity

All Implemented Interfaces:

Serializable, Comparable<Associativity>

public enum Associativity
extends Enum<Associativity>

Associativity is the property of rules and symbols provided to resolve conflicts. By declaring ambiguous grammars with associativity we can deduce if a shift (left) should be taken, or a reduce (right)

Usually the associativity with higer precedence is picked for a rule @see Rule

For conflict resolution:

   if shift-reduce conflict
      left associativity implies reduce
      right associativity implies shift
      non assoc implies error

Author:

jaimegarza@gmail.com

Enum Constant Summary

Enum Constants

Enum Constant and Description
BINARY
LEFT
NONE
RIGHT

Method Summary

Modifier and Type	Method and Description
String	displayName()
static Associativity	valueOf(String name) Returns the enum constant of this type with the specified name.
static Associativity[]	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

NONE

public static final Associativity NONE

LEFT

public static final Associativity LEFT

RIGHT

public static final Associativity RIGHT

BINARY

public static final Associativity BINARY

Method Detail

values

public static Associativity[] 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 (Associativity c : Associativity.values())
    System.out.println(c);

Returns:

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

valueOf

public static Associativity 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

displayName

public String displayName()

Returns:

the name associated to this element