1 /*
 2  * Copyright (c) 1999, 2021, 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
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23  */
24 
25 #ifndef SHARE_CI_CIFLAGS_HPP
26 #define SHARE_CI_CIFLAGS_HPP
27 
28 #include "jvm_constants.h"
29 #include "ci/ciClassList.hpp"
30 #include "utilities/accessFlags.hpp"
31 #include "utilities/ostream.hpp"
32 
33 // ciFlags
34 //
35 // This class represents klass or method flags.
36 class ciFlags {
37 private:
38   friend class ciInstanceKlass;
39   friend class ciField;
40   friend class ciMethod;
41 
42   jint _flags;
43 
44   ciFlags()                  { _flags = 0; }
45   ciFlags(AccessFlags flags) { _flags = flags.as_int(); }
46 
47 public:
48   // Java access flags
49   bool is_public               () const { return (_flags & JVM_ACC_PUBLIC                    ) != 0; }
50   bool is_private              () const { return (_flags & JVM_ACC_PRIVATE                   ) != 0; }
51   bool is_protected            () const { return (_flags & JVM_ACC_PROTECTED                 ) != 0; }
52   bool is_static               () const { return (_flags & JVM_ACC_STATIC                    ) != 0; }
53   bool is_final                () const { return (_flags & JVM_ACC_FINAL                     ) != 0; }
54   bool is_synchronized         () const { return (_flags & JVM_ACC_SYNCHRONIZED              ) != 0; }
55   bool is_super                () const { return (_flags & JVM_ACC_SUPER                     ) != 0; }
56   bool is_volatile             () const { return (_flags & JVM_ACC_VOLATILE                  ) != 0; }
57   bool is_transient            () const { return (_flags & JVM_ACC_TRANSIENT                 ) != 0; }
58   bool is_native               () const { return (_flags & JVM_ACC_NATIVE                    ) != 0; }
59   bool is_interface            () const { return (_flags & JVM_ACC_INTERFACE                 ) != 0; }
60   bool is_abstract             () const { return (_flags & JVM_ACC_ABSTRACT                  ) != 0; }
61   bool is_stable               () const { return (_flags & JVM_ACC_FIELD_STABLE              ) != 0; }
62   // In case the current object represents a field, return true if
63   // the field is modified outside of instance initializer methods
64   // (or class/initializer methods if the field is static) and false
65   // otherwise.
66   bool has_initialized_final_update() const { return (_flags & JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE) != 0; };
67 
68   // Conversion
69   jint   as_int()                      { return _flags; }
70 
71   void print_klass_flags(outputStream* st = tty);
72   void print_member_flags(outputStream* st = tty);
73   void print(outputStream* st = tty);
74 };
75 
76 #endif // SHARE_CI_CIFLAGS_HPP