1 /*
   2  * Copyright (c) 1999, 2013, 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_VM_CI_CIFLAGS_HPP
  26 #define SHARE_VM_CI_CIFLAGS_HPP
  27 
  28 #include "ci/ciClassList.hpp"
  29 #include "memory/allocation.hpp"
  30 #include "prims/jvm.h"
  31 #include "utilities/accessFlags.hpp"
  32 
  33 // ciFlags
  34 //
  35 // This class represents klass or method flags.
  36 class ciFlags VALUE_OBJ_CLASS_SPEC {
  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_strict               () const { return (_flags & JVM_ACC_STRICT                    ) != 0; }
  62   bool is_stable               () const { return (_flags & JVM_ACC_FIELD_STABLE              ) != 0; }
  63   // In case the current object represents a field, return true if
  64   // the field is modified outside of instance initializer methods
  65   // (or class/initializer methods if the field is static) and false
  66   // otherwise.
  67   bool has_initialized_final_update() const { return (_flags & JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE) != 0; };
  68 
  69   // Conversion
  70   jint   as_int()                      { return _flags; }
  71 
  72   void print_klass_flags(outputStream* st = tty);
  73   void print_member_flags(outputStream* st = tty);
  74   void print(outputStream* st = tty);
  75 };
  76 
  77 #endif // SHARE_VM_CI_CIFLAGS_HPP