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
--- EOF ---