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Java > Open Source Codes > net > sf > retrotranslator > runtime > impl > FieldDescriptor


1 /***
2  * Retrotranslator: a Java bytecode transformer that translates Java classes
3  * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
4  *
5  * Copyright (c) 2005 - 2007 Taras Puchko
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * 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  */

32 package net.sf.retrotranslator.runtime.impl;
33
34 import java.lang.reflect.*;
35 import net.sf.retrotranslator.runtime.asm.signature.SignatureReader;
36 import net.sf.retrotranslator.runtime.java.lang.annotation.Annotation_;
37
38 /**
39  * @author Taras Puchko
40  */

41 public class FieldDescriptor extends AnnotatedElementDescriptor {
42
43     private String JavaDoc name;
44     private String JavaDoc desc;
45     private ClassDescriptor classDescriptor;
46     private TypeDescriptor typeDescriptor;
47
48     public FieldDescriptor(ClassDescriptor classDescriptor, int access, String JavaDoc name, String JavaDoc desc, String JavaDoc signature) {
49         this.classDescriptor = classDescriptor;
50         this.access = access;
51         this.name = name;
52         this.desc = desc;
53         if (signature != null) {
54             typeDescriptor = new TypeDescriptor();
55             new SignatureReader(signature).accept(typeDescriptor);
56         }
57     }
58
59     public FieldDescriptor(ClassDescriptor classDescriptor, Field field) {
60         this(classDescriptor, field.getModifiers(), field.getName(),
61                 net.sf.retrotranslator.runtime.asm.Type.getDescriptor(field.getType()), null);
62     }
63
64     public static FieldDescriptor getInstance(Field field) {
65         ClassDescriptor classDescriptor = ClassDescriptor.getInstance(field.getDeclaringClass());
66         FieldDescriptor fieldDescriptor = classDescriptor.getFieldDescriptor(field.getName());
67         return fieldDescriptor != null ? fieldDescriptor : new FieldDescriptor(classDescriptor, field);
68     }
69
70     public String JavaDoc getName() {
71         return name;
72     }
73
74     public String JavaDoc getDesc() {
75         return desc;
76     }
77
78     public Type getGenericType() {
79         return createType(typeDescriptor);
80     }
81
82     public ClassDescriptor getClassDescriptor() {
83         return classDescriptor;
84     }
85
86     protected TypeVariable findTypeVariable(String JavaDoc name) {
87         return classDescriptor.findTypeVariable(name);
88     }
89
90     protected Annotation_[] createAnnotations(Annotation_[] declaredAnnotations) {
91         return declaredAnnotations;
92     }
93
94 }
95
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