KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > aspectj > compiler > crosscuts > TreeCheckerPass


1 /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2  *
3  * This file is part of the compiler and core tools for the AspectJ(tm)
4  * programming language; see http://aspectj.org
5  *
6  * The contents of this file are subject to the Mozilla Public License
7  * Version 1.1 (the "License"); you may not use this file except in
8  * compliance with the License. You may obtain a copy of the License at
9  * either http://www.mozilla.org/MPL/ or http://aspectj.org/MPL/.
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the
14  * License.
15  *
16  * The Original Code is AspectJ.
17  *
18  * The Initial Developer of the Original Code is Xerox Corporation. Portions
19  * created by Xerox Corporation are Copyright (C) 1999-2002 Xerox Corporation.
20  * All Rights Reserved.
21  *
22  * Contributor(s):
23  */
24
25 package org.aspectj.compiler.crosscuts;
26
27 import org.aspectj.compiler.base.ast.*;
28 import org.aspectj.compiler.base.*;
29
30 import java.util.*;
31
32
33 public class TreeCheckerPass extends WalkerPass {
34     private boolean checkSourceInfo;
35     private boolean checkParents;
36     private boolean checkResolved;
37     
38     private int showRealParentOnExit = -1;
39     
40     public TreeCheckerPass(JavaCompiler compiler, boolean checkSourceInfo, boolean checkParents, boolean checkResolved) {
41         super(compiler);
42         this.checkSourceInfo = checkSourceInfo;
43         this.checkParents = checkParents;
44         this.checkResolved = checkResolved;
45     }
46
47     public String JavaDoc getDisplayName() {
48         return "check source:" + checkSourceInfo + " parents: " + checkParents + " resolved: " + checkResolved;
49     }
50
51     
52     public ASTObject process(ASTObject object) {
53         //if (checkSourceInfo)
54 //checkSourceInfo(object);
55 if (checkParents) checkParent(object);
56         if (checkResolved) checkResolved(object);
57         
58         object.walk(this);
59         
60         if (showRealParentOnExit > 0) showRealParentOnExit--;
61         if (showRealParentOnExit == 0) {
62             object.display(2);
63             showRealParentOnExit = -1;
64         }
65         
66         return object;
67     }
68
69     void checkSourceInfo(ASTObject object) {
70         if (!object.hasSourceLocation()) {
71             getCompiler().showError(object.getParent(), "no source location");
72             
73             object.display(2);
74         }
75     }
76
77     void checkParent(ASTObject object) {
78         if (object.getParent() == null && !(object instanceof CompilationUnit)) {
79             object.showError("no parent");
80             object.display(2);
81             showRealParentOnExit = 3;
82         }
83     }
84
85     void checkResolved(ASTObject object) {
86         //XXX not implemented yet
87 }
88
89
90 }
91
Popular Tags