Package org.codehaus.groovy.transform.tailrec

Class UsedVariableTracker

java.lang.Object

org.codehaus.groovy.transform.tailrec.UsedVariableTracker

All Implemented Interfaces:

VariableReplacedListener

public class UsedVariableTracker
extends Object
implements VariableReplacedListener

Tracks replacement variables that are actually used while rewriting expressions.

Field Summary

Fields inherited from interface org.codehaus.groovy.transform.tailrec.VariableReplacedListener

NULL

Constructor Summary

Constructors

Constructor	Description
UsedVariableTracker()

Method Summary

Modifier and Type	Method	Description
Set<String>	getUsedVariableNames()	Returns the names of replacement variables that were referenced.
void	variableReplaced(VariableExpression oldVar, VariableExpression newVar)	Called after a variable expression has been replaced.

Methods inherited from class java.lang.Object

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

Constructor Details

UsedVariableTracker

public UsedVariableTracker()

Method Details

variableReplaced

public void variableReplaced(VariableExpression oldVar,
 VariableExpression newVar)

Called after a variable expression has been replaced.

Specified by:

variableReplaced in interface VariableReplacedListener

Parameters:

oldVar - the original variable expression

newVar - the replacement variable expression

getUsedVariableNames

public Set<String> getUsedVariableNames()

Returns the names of replacement variables that were referenced.

Returns:

the used replacement variable names