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Java > Open Source Codes > soot > toolkits > astmetrics > NumLocalsMetric


1 /* Soot - a J*va Optimization Framework
2  * Copyright (C) 2006 Nomair A. Naeem
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17  * Boston, MA 02111-1307, USA.
18  */
19
20 package soot.toolkits.astmetrics;
21
22 import polyglot.ast.LocalDecl;
23 import polyglot.ast.Node;
24 import polyglot.visit.NodeVisitor;
25
26 public class NumLocalsMetric extends ASTMetric {
27
28     int numLocals; //store the current number of locals for this CLASS
29
30     public NumLocalsMetric(polyglot.ast.Node node){
31         super(node);
32     }
33     
34     /*
35      * Will be invoked by the super as well as whenever a new class is entered
36      *
37      */
38     public void reset() {
39         numLocals = 0;
40     }
41
42     /*
43      * Will be invoked whenever we are leaving a subtree which was a classDecl
44      */
45     public void addMetrics(ClassData data) {
46         data.addMetric(new MetricData("Number-Locals",new Integer JavaDoc(numLocals)));
47     }
48     
49     public NodeVisitor enter(Node parent, Node n){
50         if(n instanceof LocalDecl){
51             //System.out.println("Local declared is"+ ((LocalDecl)n).name() );
52 numLocals++;
53         }
54         return enter(n);
55     }
56
57 }
58
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