1 /*
2 * Copyright (c) 2023, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_OOPS_CONSTMETHODFLAGS_HPP
26 #define SHARE_OOPS_CONSTMETHODFLAGS_HPP
27
28 #include "utilities/globalDefinitions.hpp"
29 #include "utilities/macros.hpp"
30
31 class outputStream;
32
33 // The ConstMethodFlags class contains the parse-time flags associated with
34 // a Method, and its associated accessors.
35 // These flags are JVM internal and not part of the AccessFlags classfile specification.
36
37 class ConstMethodFlags {
38 friend class VMStructs;
39 friend class JVMCIVMStructs;
40
41 #define CM_FLAGS_DO(flag) \
42 flag(has_linenumber_table , 1 << 0) \
43 flag(has_checked_exceptions , 1 << 1) \
44 flag(has_localvariable_table , 1 << 2) \
45 flag(has_exception_table , 1 << 3) \
46 flag(has_generic_signature , 1 << 4) \
47 flag(has_method_parameters , 1 << 5) \
48 flag(is_overpass , 1 << 6) \
49 flag(has_method_annotations , 1 << 7) \
50 flag(has_parameter_annotations , 1 << 8) \
51 flag(has_type_annotations , 1 << 9) \
52 flag(has_default_annotations , 1 << 10) \
53 flag(caller_sensitive , 1 << 11) \
54 flag(is_hidden , 1 << 12) \
55 flag(has_injected_profile , 1 << 13) \
56 flag(intrinsic_candidate , 1 << 14) \
57 flag(reserved_stack_access , 1 << 15) \
58 flag(is_scoped , 1 << 16) \
59 flag(changes_current_thread , 1 << 17) \
60 flag(jvmti_mount_transition , 1 << 18) \
61 flag(deprecated , 1 << 19) \
62 flag(deprecated_for_removal , 1 << 20) \
63 /* end of list */
64
65 #define CM_FLAGS_ENUM_NAME(name, value) _misc_##name = value,
66 enum {
67 CM_FLAGS_DO(CM_FLAGS_ENUM_NAME)
68 };
69 #undef CM_FLAGS_ENUM_NAME
70
71 // These flags are write-once before the class is published and then read-only so don't require atomic updates.
72 u4 _flags;
73
74 public:
75
76 ConstMethodFlags() : _flags(0) {}
77
78 // Create getters and setters for the flag values.
79 #define CM_FLAGS_GET_SET(name, ignore) \
80 bool name() const { return (_flags & _misc_##name) != 0; } \
81 void set_##name() { \
82 _flags |= _misc_##name; \
83 }
84 CM_FLAGS_DO(CM_FLAGS_GET_SET)
85 #undef CM_FLAGS_GET_SET
86
87 int as_int() const { return _flags; }
88 void print_on(outputStream* st) const;
89 };
90
91 #endif // SHARE_OOPS_CONSTMETHODFLAGS_HPP