gololang.ir

Enum Visitors.Walk

java.lang.Object

java.lang.Enum<Visitors.Walk>

gololang.ir.Visitors.Walk

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Visitors.Walk>

Enclosing class:

Visitors

public static enum Visitors.Walk
extends java.lang.Enum<Visitors.Walk>

Define how to walk the tree.

Enum Constant Summary

Enum Constants

Enum Constant and Description
BOTH Walk the tree twice, before and afterdealing with the current element.
NONE Don't walk the tree.
POSTFIX Walk the tree after dealing with the current element.
PREFIX Walk the tree before dealing with the current element.

Method Summary

Modifier and Type	Method and Description
static Visitors.Walk	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Visitors.Walk[]	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

PREFIX

public static final Visitors.Walk PREFIX

Walk the tree before dealing with the current element.

POSTFIX

public static final Visitors.Walk POSTFIX

Walk the tree after dealing with the current element.

BOTH

public static final Visitors.Walk BOTH

Walk the tree twice, before and afterdealing with the current element.

NONE

public static final Visitors.Walk NONE

Don't walk the tree.

This allows the user to choose if and when to walk the tree.

Method Detail

values

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

Returns:

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

valueOf

public static Visitors.Walk valueOf(java.lang.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:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null