1 /*
2 * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.lang.reflect;
27
28 import jdk.internal.reflect.MethodAccessor;
29 import jdk.internal.reflect.ConstructorAccessor;
30
31 /** Package-private class implementing the
32 jdk.internal.access.JavaLangReflectAccess interface, allowing the java.lang
33 package to instantiate objects in this package. */
34
35 class ReflectAccess implements jdk.internal.access.JavaLangReflectAccess {
36 public <T> Constructor<T> newConstructor(Class<T> declaringClass,
37 Class<?>[] parameterTypes,
38 Class<?>[] checkedExceptions,
39 int modifiers,
40 int slot,
41 String signature,
42 byte[] annotations,
43 byte[] parameterAnnotations)
44 {
45 return new Constructor<>(declaringClass,
46 parameterTypes,
47 checkedExceptions,
48 modifiers,
49 slot,
50 signature,
51 annotations,
52 parameterAnnotations);
53 }
54
55 public MethodAccessor getMethodAccessor(Method m) {
56 return m.getMethodAccessor();
57 }
58
59 public void setMethodAccessor(Method m, MethodAccessor accessor) {
60 m.setMethodAccessor(accessor);
61 }
62
63 public ConstructorAccessor getConstructorAccessor(Constructor<?> c) {
64 return c.getConstructorAccessor();
65 }
66
67 public void setConstructorAccessor(Constructor<?> c,
68 ConstructorAccessor accessor)
69 {
70 c.setConstructorAccessor(accessor);
71 }
72
73 public int getConstructorSlot(Constructor<?> c) {
74 return c.getSlot();
75 }
76
77 public String getConstructorSignature(Constructor<?> c) {
78 return c.getSignature();
79 }
80
81 public byte[] getConstructorAnnotations(Constructor<?> c) {
82 return c.getRawAnnotations();
83 }
84
85 public byte[] getConstructorParameterAnnotations(Constructor<?> c) {
86 return c.getRawParameterAnnotations();
87 }
88
89 public byte[] getExecutableTypeAnnotationBytes(Executable ex) {
90 return ex.getTypeAnnotationBytes();
91 }
92
93 public Class<?>[] getExecutableSharedParameterTypes(Executable ex) {
94 return ex.getSharedParameterTypes();
95 }
96
97 //
98 // Copying routines, needed to quickly fabricate new Field,
99 // Method, and Constructor objects from templates
100 //
101 public Method copyMethod(Method arg) {
102 return arg.copy();
103 }
104 public Method leafCopyMethod(Method arg) {
105 return arg.leafCopy();
106 }
107
108 public Field copyField(Field arg) {
109 return arg.copy();
110 }
111
112 public <T> Constructor<T> copyConstructor(Constructor<T> arg) {
113 return arg.copy();
114 }
115
116 @SuppressWarnings("unchecked")
117 public <T extends AccessibleObject> T getRoot(T obj) {
118 return (T) obj.getRoot();
119 }
120
121 public <T> T newInstance(Constructor<T> ctor, Object[] args, Class<?> caller)
122 throws IllegalAccessException, InstantiationException, InvocationTargetException
123 {
124 return ctor.newInstanceWithCaller(args, true, caller);
125 }
126 }