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/* NSC -- new scala compiler
* Copyright 2005 LAMP/EPFL
* @author Martin Odersky
*/
// $Id$
package scala.tools.nsc.util;
import scala.collection.mutable.HashMap;
class FreshNameCreator {
protected var counter = 0;
protected val counters = new HashMap[String,int];
/**
* Create a fresh name with the given prefix. It is guaranteed
* that the returned name has never been returned by a previous
* call to this function (provided the prefix does not end in a digit).
*/
def newName(prefix: String): String = {
val count = counters.get(prefix) match {
case Some(last) => last + 1
case None => 0
}
counters.update(prefix, count);
prefix + count
}
def newName(): String = {
counter = counter + 1;
"$" + counter + "$"
}
}
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