mwalk.visitor
Class RandomPathVisitor

java.lang.Object
  |
  +--mwalk.visitor.AbstractVisitor
        |
        +--mwalk.visitor.RandomPathVisitor

public class RandomPathVisitor

extends AbstractVisitor

implements UpVisitor

A visitor used to mark the primary path for each randomly selected receiver as active.

Version:

1.0

Author:

Robert Chalmers

Fields inherited from class mwalk.visitor.AbstractVisitor

CFG_BASE, eval, seen, verbose

Constructor Summary

RandomPathVisitor()
Default constructor.

Method Summary

TreeNode[]	getParents(Tree tree, TreeNode node) Retrieve the list of parents of this node.
boolean	nextReceiver(Tree tree, Receiver recv) Check whether the next receiver should start a visiting path.
void	reset(Tree tree) Reset the visitor for a new pass over the tree.

Methods inherited from class mwalk.visitor.AbstractVisitor

again, cfgBoolean, cfgInt, cfgString, cfgVisitor, evaluator, evaluator, getChildren, getReceivers, haveSeen, haveVisited, init, markSeen, markVisited, postfix, prefix, verbose, visitDown, visitDown, visitUp, visitUp, walkDown, walkUp

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomPathVisitor

public RandomPathVisitor()

Default constructor.

Method Detail

reset

public void reset(Tree tree)

Reset the visitor for a new pass over the tree.

Overrides:

reset in class AbstractVisitor

Parameters:

Tree - vistited tree

nextReceiver

public boolean nextReceiver(Tree tree,
                            Receiver recv)

Check whether the next receiver should start a visiting path.

Specified by:

nextReceiver in interface UpVisitor

Overrides:

nextReceiver in class AbstractVisitor

Parameters:

Tree - current tree instance

Receiver - next receiver

Returns:

boolean whether to visit next receiver

getParents

public TreeNode[] getParents(Tree tree,
                             TreeNode node)

Retrieve the list of parents of this node.

Specified by:

getParents in interface UpVisitor

Overrides:

getParents in class AbstractVisitor

Parameters:

Tree - vistited tree

TreeNode - currently visited node

Returns:

TreeNode[] array of parent nodes of currently visited node