tom.library.sl
Class Identity

java.lang.Object
  tom.library.sl.AbstractStrategy
      tom.library.sl.Identity

All Implemented Interfaces:

Strategy, Visitable

public class Identity
extends AbstractStrategy

x.accept(Identity) = x

Basic visitor combinator without arguments that does nothing.

See also IdentityTest.

Field Summary

Fields inherited from class tom.library.sl.AbstractStrategy

environment, visitors

Constructor Summary

Identity()

Method Summary

int	visit() Visits the current subject (found in the environment) and place its result in the environment.
Visitable	visitLight(Visitable x) Visits the subject any in a light way (without environment)

Methods inherited from class tom.library.sl.AbstractStrategy

accept, getChildAt, getChildCount, getChildren, getEnvironment, getRoot, getSubject, init, init, initSubterm, initSubterm, initSubterm, initSubterm, initSubterm, setChildAt, setChildren, setEnvironment, setRoot, setSubject, visit, visit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Identity

public Identity()

Method Detail

visitLight

public Visitable visitLight(Visitable x)

Description copied from interface: Strategy

Visits the subject any in a light way (without environment)

Parameters:

x - the subject to visit.

visit

public int visit()

Description copied from interface: Strategy

Visits the current subject (found in the environment) and place its result in the environment. Sets the environment flag to Environment.FAILURE in case of failure