1/*
2 * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2018, SAP SE. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
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24 */
25
26#ifndef SHARE_OOPS_REFLECTIONACCESSORIMPLKLASSHELPER_HPP
27#define SHARE_OOPS_REFLECTIONACCESSORIMPLKLASSHELPER_HPP
28
29#include "memory/allocation.hpp"
30
31class InstanceKlass;
32
33// Helper for classes derived from jdk/internal/reflect/{Method|Constructor}AccessorImpl:
34// offers convenience functions to extract the names of target class/method/signature
35// from the constant pool of these classes.
36class ReflectionAccessorImplKlassHelper: public AllStatic {
37
38 // Returns true if k is of type jdk/internal/reflect/GeneratedMethodAccessorXXX.
39 static bool is_generated_method_accessor(const InstanceKlass* k);
40
41 // Returns true if k is of type jdk/internal/reflect/GeneratedConstructorAccessorXXX.
42 static bool is_generated_constructor_accessor(const InstanceKlass* k);
43
44 // Returns true if k is of type jdk/internal/reflect/GeneratedSerializationConstructorAccessorXXX.
45 static bool is_generated_method_serialization_constructor_accessor(const InstanceKlass* k);
46
47 // Assuming k is of type jdk/internal/reflect/Generated{SerializationConstructor|Constructor|Method}AccessorXXX,
48 // the name of the target class as resource-area allocated string.
49 static const char* get_target_class_name(const InstanceKlass* k);
50
51 // Assuming k is of type jdk/internal/reflect/Generated{SerializationConstructor|Constructor|Method}AccessorXXX,
52 // the name of the target method as resource-area allocated string.
53 static const char* get_target_method_name(const InstanceKlass* k);
54
55 // Assuming k is of type jdk/internal/reflect/Generated{SerializationConstructor|Constructor|Method}AccessorXXX,
56 // the signature of the target method as resource-area allocated string.
57 static const char* get_target_method_signature(const InstanceKlass* k);
58
59public:
60
61 // Returns true if k is of type jdk/internal/reflect/Generated{SerializationConstructor|Constructor|Method}AccessorXXX
62 // and it is safe to call print_invocation_target(k)
63 static bool is_generated_accessor(const Klass* k);
64
65 // Assuming k is of type jdk/internal/reflect/Generated{SerializationConstructor|Constructor|Method}AccessorXXX,
66 // print out target class, method, signature in one line.
67 static void print_invocation_target(outputStream* out, Klass* k);
68
69};
70
71
72
73
74#endif // SHARE_OOPS_REFLECTIONACCESSORIMPLKLASSHELPER_HPP
75