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Java > Open Source Codes > org > objectweb > asm > util > TraceFieldVisitor


1 /***
2  * ASM: a very small and fast Java bytecode manipulation framework
3  * Copyright (c) 2000-2005 INRIA, France Telecom
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in the
13  * documentation and/or other materials provided with the distribution.
14  * 3. Neither the name of the copyright holders nor the names of its
15  * contributors may be used to endorse or promote products derived from
16  * this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28  * THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 package org.objectweb.asm.util;
31
32 import org.objectweb.asm.AnnotationVisitor;
33 import org.objectweb.asm.Attribute;
34 import org.objectweb.asm.FieldVisitor;
35
36 /**
37  * A {@link FieldVisitor} that prints a disassembled view of the fields it
38  * visits.
39  *
40  * @author Eric Bruneton
41  */
42 public class TraceFieldVisitor extends TraceAbstractVisitor implements
43         FieldVisitor
44 {
45
46     /**
47      * The {@link FieldVisitor} to which this visitor delegates calls. May be
48      * <tt>null</tt>.
49      */
50     protected FieldVisitor fv;
51
52     public AnnotationVisitor visitAnnotation(
53         final String JavaDoc desc,
54         final boolean visible)
55     {
56         AnnotationVisitor av = super.visitAnnotation(desc, visible);
57         if (fv != null) {
58             ((TraceAnnotationVisitor) av).av = fv.visitAnnotation(desc, visible);
59         }
60         return av;
61     }
62
63     public void visitAttribute(final Attribute attr) {
64         super.visitAttribute(attr);
65
66         if (fv != null) {
67             fv.visitAttribute(attr);
68         }
69     }
70
71     public void visitEnd() {
72         super.visitEnd();
73
74         if (fv != null) {
75             fv.visitEnd();
76         }
77     }
78 }
79
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