KickJava   Java API By Example, From Geeks To Geeks.

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


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
34 /**
35  * An {@link AnnotationVisitor} that prints the ASM code that generates the
36  * annotations it visits.
37  *
38  * @author Eric Bruneton
39  */
40 public class ASMifierAnnotationVisitor extends AbstractVisitor implements
41         AnnotationVisitor
42 {
43
44     /**
45      * Identifier of the annotation visitor variable in the produced code.
46      */
47     protected final int id;
48
49     /**
50      * Constructs a new {@link ASMifierAnnotationVisitor}.
51      *
52      * @param id identifier of the annotation visitor variable in the produced
53      * code.
54      */
55     public ASMifierAnnotationVisitor(final int id) {
56         this.id = id;
57     }
58
59     // ------------------------------------------------------------------------
60 // Implementation of the AnnotationVisitor interface
61 // ------------------------------------------------------------------------
62
63     public void visit(final String JavaDoc name, final Object JavaDoc value) {
64         buf.setLength(0);
65         buf.append("av").append(id).append(".visit(");
66         ASMifierAbstractVisitor.appendConstant(buf, name);
67         buf.append(", ");
68         ASMifierAbstractVisitor.appendConstant(buf, value);
69         buf.append(");\n");
70         text.add(buf.toString());
71     }
72
73     public void visitEnum(
74         final String JavaDoc name,
75         final String JavaDoc desc,
76         final String JavaDoc value)
77     {
78         buf.setLength(0);
79         buf.append("av").append(id).append(".visitEnum(");
80         ASMifierAbstractVisitor.appendConstant(buf, name);
81         buf.append(", ");
82         ASMifierAbstractVisitor.appendConstant(buf, desc);
83         buf.append(", ");
84         ASMifierAbstractVisitor.appendConstant(buf, value);
85         buf.append(");\n");
86         text.add(buf.toString());
87     }
88
89     public AnnotationVisitor visitAnnotation(
90         final String JavaDoc name,
91         final String JavaDoc desc)
92     {
93         buf.setLength(0);
94         buf.append("{\n");
95         buf.append("AnnotationVisitor av").append(id + 1).append(" = av");
96         buf.append(id).append(".visitAnnotation(");
97         ASMifierAbstractVisitor.appendConstant(buf, name);
98         buf.append(", ");
99         ASMifierAbstractVisitor.appendConstant(buf, desc);
100         buf.append(");\n");
101         text.add(buf.toString());
102         ASMifierAnnotationVisitor av = new ASMifierAnnotationVisitor(id + 1);
103         text.add(av.getText());
104         text.add("}\n");
105         return av;
106     }
107
108     public AnnotationVisitor visitArray(final String JavaDoc name) {
109         buf.setLength(0);
110         buf.append("{\n");
111         buf.append("AnnotationVisitor av").append(id + 1).append(" = av");
112         buf.append(id).append(".visitArray(");
113         ASMifierAbstractVisitor.appendConstant(buf, name);
114         buf.append(");\n");
115         text.add(buf.toString());
116         ASMifierAnnotationVisitor av = new ASMifierAnnotationVisitor(id + 1);
117         text.add(av.getText());
118         text.add("}\n");
119         return av;
120     }
121
122     public void visitEnd() {
123         buf.setLength(0);
124         buf.append("av").append(id).append(".visitEnd();\n");
125         text.add(buf.toString());
126     }
127 }
128
Popular Tags