tom.library.sl
Class All

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

All Implemented Interfaces:

Strategy, Visitable

public class All
extends AbstractStrategy

Basic strategy combinator with one strategy argument s, that applies this strategy s to all children. If there exists one child for which the strategy s fails, All(s) fails. Applying All combinator to a constant always succeeds and behaves like the Identity() strategy. *

All(s)[f(t1,...,tn)]=f(t1',...,tn') if s[t1]=t1', ..., s[tn]=tn'

fails if there exists i such that s[ti] fails.

All(s)[c]=c is c is a constant

Note that this All is parallel in the sense that s is applied to every child before changing the current subject. If you are interested in a sequential behaviour, AllSeq

Field Summary

static int

ARG

Fields inherited from class tom.library.sl.AbstractStrategy

environment, visitors

Constructor Summary

All(Strategy v)

Method Summary

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

Field Detail

ARG

public static final int ARG

See Also:

Constant Field Values

Constructor Detail

All

public All(Strategy v)

Method Detail

visitLight

public final Visitable visitLight(Visitable any)
                           throws VisitFailure

Visits the subject any without managing any environment

Parameters:

any - the subject to visit.

Throws:

VisitFailure - in case of failure.

visit

public int visit()

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