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Java > Open Source Codes > net > sf > retrotranslator > runtime > java > lang > reflect > _Constructor


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.java.lang.reflect;
33
34 import java.lang.reflect.*;
35 import net.sf.retrotranslator.runtime.asm.Opcodes;
36 import net.sf.retrotranslator.runtime.impl.*;
37 import net.sf.retrotranslator.runtime.java.lang.annotation.Annotation_;
38
39 /**
40  * @author Taras Puchko
41  */
42 public class _Constructor {
43
44     public static Annotation_ getAnnotation(Constructor constructor, Class JavaDoc annotationType) {
45         return MethodDescriptor.getInstance(constructor).getAnnotation(annotationType);
46     }
47
48     public static Annotation_[] getAnnotations(Constructor constructor) {
49         return MethodDescriptor.getInstance(constructor).getAnnotations();
50     }
51
52     public static Annotation_[] getDeclaredAnnotations(Constructor constructor) {
53         return MethodDescriptor.getInstance(constructor).getDeclaredAnnotations();
54     }
55
56     public static Type[] getGenericExceptionTypes(Constructor constructor) {
57         Type[] types = MethodDescriptor.getInstance(constructor).getGenericExceptionTypes();
58         return types != null ? types : constructor.getExceptionTypes();
59     }
60
61     public static Type[] getGenericParameterTypes(Constructor constructor) {
62         Type[] types = MethodDescriptor.getInstance(constructor).getGenericParameterTypes();
63         return types != null ? types : constructor.getParameterTypes();
64     }
65
66     public static Annotation_[][] getParameterAnnotations(Constructor constructor) {
67         return MethodDescriptor.getInstance(constructor).getParameterAnnotations();
68     }
69
70     public static TypeVariable[] getTypeParameters(Constructor constructor) {
71         return MethodDescriptor.getInstance(constructor).getTypeParameters();
72     }
73
74     public static boolean isAnnotationPresent(Constructor constructor, Class JavaDoc annotationType) {
75         return MethodDescriptor.getInstance(constructor).isAnnotationPresent(annotationType);
76     }
77
78     public static boolean isSynthetic(Constructor constructor) {
79         return MethodDescriptor.getInstance(constructor).isAccess(Opcodes.ACC_SYNTHETIC);
80     }
81
82     public static boolean isVarArgs(Constructor constructor) {
83         return MethodDescriptor.getInstance(constructor).isAccess(Opcodes.ACC_VARARGS);
84     }
85
86     public static String JavaDoc toGenericString(Constructor constructor) {
87         StringBuilder JavaDoc builder = new StringBuilder JavaDoc();
88         if (constructor.getModifiers() != 0) {
89             builder.append(Modifier.toString(constructor.getModifiers())).append(' ');
90         }
91         TypeVariable[] typeParameters = getTypeParameters(constructor);
92         if (typeParameters.length > 0) {
93             RuntimeTools.append(builder.append('<'), typeParameters).append("> ");
94         }
95         builder.append(RuntimeTools.getString(constructor.getDeclaringClass()));
96         RuntimeTools.append(builder.append('('), getGenericParameterTypes(constructor)).append(')');
97         Type[] exceptionTypes = getGenericExceptionTypes(constructor);
98         if (exceptionTypes.length > 0) {
99             RuntimeTools.append(builder.append(" throws "), exceptionTypes);
100         }
101         return builder.toString();
102     }
103
104 }
105
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