01: /***
02: * Retrotranslator: a Java bytecode transformer that translates Java classes
03: * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
04: *
05: * Copyright (c) 2005 - 2008 Taras Puchko
06: * All rights reserved.
07: *
08: * Redistribution and use in source and binary forms, with or without
09: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the copyright holders nor the names of its
17: * contributors may be used to endorse or promote products derived from
18: * this software without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30: * THE POSSIBILITY OF SUCH DAMAGE.
31: */package net.sf.retrotranslator.transformer;
32:
33: import net.sf.retrotranslator.runtime.asm.*;
34: import net.sf.retrotranslator.runtime.impl.EmptyVisitor;
35:
36: /**
37: * @author Taras Puchko
38: */
39: class AnnotationStrippingVisitor extends ClassAdapter {
40:
41: public AnnotationStrippingVisitor(final ClassVisitor cv) {
42: super (cv);
43: }
44:
45: public void visit(int version, int access, String name,
46: String signature, String super Name, String[] interfaces) {
47: super .visit(version, access & ~Opcodes.ACC_ANNOTATION, name,
48: signature, super Name, interfaces);
49: }
50:
51: public AnnotationVisitor visitAnnotation(String desc,
52: boolean visible) {
53: return new EmptyVisitor();
54: }
55:
56: public FieldVisitor visitField(int access, String name,
57: String desc, String signature, Object value) {
58: final FieldVisitor visitor = super .visitField(access, name,
59: desc, signature, value);
60: return visitor == null ? null : new FieldVisitor() {
61: public AnnotationVisitor visitAnnotation(String desc,
62: boolean visible) {
63: return new EmptyVisitor();
64: }
65:
66: public void visitAttribute(Attribute attr) {
67: visitor.visitAttribute(attr);
68: }
69:
70: public void visitEnd() {
71: visitor.visitEnd();
72: }
73: };
74: }
75:
76: public MethodVisitor visitMethod(int access, String name,
77: String desc, String signature, String[] exceptions) {
78: MethodVisitor visitor = super .visitMethod(access, name, desc,
79: signature, exceptions);
80: return visitor == null ? null : new MethodAdapter(visitor) {
81: public AnnotationVisitor visitAnnotationDefault() {
82: return new EmptyVisitor();
83: }
84:
85: public AnnotationVisitor visitAnnotation(String desc,
86: boolean visible) {
87: return new EmptyVisitor();
88: }
89:
90: public AnnotationVisitor visitParameterAnnotation(
91: int parameter, String desc, boolean visible) {
92: return new EmptyVisitor();
93: }
94: };
95: }
96:
97: }
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