62 JVM_ACC_HAS_VANILLA_CONSTRUCTOR = 0x20000000, // True if klass has a vanilla default constructor
63 JVM_ACC_HAS_FINALIZER = 0x40000000, // True if klass has a non-empty finalize() method
64 JVM_ACC_IS_CLONEABLE = (int)0x80000000,// True if klass supports the Clonable interface
65 JVM_ACC_HAS_FINAL_METHOD = 0x01000000, // True if klass has final method
66
67 // Klass* and Method* flags
68 JVM_ACC_HAS_LOCAL_VARIABLE_TABLE= 0x00200000,
69
70 JVM_ACC_PROMOTED_FLAGS = 0x00200000, // flags promoted from methods to the holding klass
71
72 // field flags
73 // Note: these flags must be defined in the low order 16 bits because
74 // InstanceKlass only stores a ushort worth of information from the
75 // AccessFlags value.
76 // These bits must not conflict with any other field-related access flags
77 // (e.g., ACC_ENUM).
78 // Note that the class-related ACC_ANNOTATION bit conflicts with these flags.
79 JVM_ACC_FIELD_ACCESS_WATCHED = 0x00002000, // field access is watched by JVMTI
80 JVM_ACC_FIELD_MODIFICATION_WATCHED = 0x00008000, // field modification is watched by JVMTI
81 JVM_ACC_FIELD_INTERNAL = 0x00000400, // internal field, same as JVM_ACC_ABSTRACT
82 JVM_ACC_FIELD_STABLE = 0x00000020, // @Stable field, same as JVM_ACC_SYNCHRONIZED
83 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE = 0x00000800, // field has generic signature
84
85 JVM_ACC_FIELD_INTERNAL_FLAGS = JVM_ACC_FIELD_ACCESS_WATCHED |
86 JVM_ACC_FIELD_MODIFICATION_WATCHED |
87 JVM_ACC_FIELD_INTERNAL |
88 JVM_ACC_FIELD_STABLE |
89 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE,
90
91 // flags accepted by set_field_flags()
92 JVM_ACC_FIELD_FLAGS = JVM_RECOGNIZED_FIELD_MODIFIERS | JVM_ACC_FIELD_INTERNAL_FLAGS
93
94 };
95
96
97 class AccessFlags VALUE_OBJ_CLASS_SPEC {
98 friend class VMStructs;
99 private:
100 jint _flags;
101
102 public:
133 bool is_old () const { return (_flags & JVM_ACC_IS_OLD ) != 0; }
134 bool is_obsolete () const { return (_flags & JVM_ACC_IS_OBSOLETE ) != 0; }
135 bool is_deleted () const { return (_flags & JVM_ACC_IS_DELETED ) != 0; }
136 bool is_prefixed_native () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE ) != 0; }
137
138 // Klass* flags
139 bool has_miranda_methods () const { return (_flags & JVM_ACC_HAS_MIRANDA_METHODS ) != 0; }
140 bool has_vanilla_constructor () const { return (_flags & JVM_ACC_HAS_VANILLA_CONSTRUCTOR) != 0; }
141 bool has_finalizer () const { return (_flags & JVM_ACC_HAS_FINALIZER ) != 0; }
142 bool has_final_method () const { return (_flags & JVM_ACC_HAS_FINAL_METHOD ) != 0; }
143 bool is_cloneable () const { return (_flags & JVM_ACC_IS_CLONEABLE ) != 0; }
144 // Klass* and Method* flags
145 bool has_localvariable_table () const { return (_flags & JVM_ACC_HAS_LOCAL_VARIABLE_TABLE) != 0; }
146 void set_has_localvariable_table() { atomic_set_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); }
147 void clear_has_localvariable_table() { atomic_clear_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); }
148
149 // field flags
150 bool is_field_access_watched() const { return (_flags & JVM_ACC_FIELD_ACCESS_WATCHED) != 0; }
151 bool is_field_modification_watched() const
152 { return (_flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; }
153 bool on_stack() const { return (_flags & JVM_ACC_ON_STACK) != 0; }
154 bool is_internal() const { return (_flags & JVM_ACC_FIELD_INTERNAL) != 0; }
155 bool is_stable() const { return (_flags & JVM_ACC_FIELD_STABLE) != 0; }
156 bool field_has_generic_signature() const
157 { return (_flags & JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE) != 0; }
158
159 // get .class file flags
160 jint get_flags () const { return (_flags & JVM_ACC_WRITTEN_FLAGS); }
161
162 // Initialization
163 void add_promoted_flags(jint flags) { _flags |= (flags & JVM_ACC_PROMOTED_FLAGS); }
164 void set_field_flags(jint flags) {
165 assert((flags & JVM_ACC_FIELD_FLAGS) == flags, "only recognized flags");
166 _flags = (flags & JVM_ACC_FIELD_FLAGS);
167 }
168 void set_flags(jint flags) { _flags = (flags & JVM_ACC_WRITTEN_FLAGS); }
169
170 void set_queued_for_compilation() { atomic_set_bits(JVM_ACC_QUEUED); }
171 void clear_queued_for_compilation() { atomic_clear_bits(JVM_ACC_QUEUED); }
172
212 void set_has_miranda_methods() { atomic_set_bits(JVM_ACC_HAS_MIRANDA_METHODS); }
213
214 public:
215 // field flags
216 void set_is_field_access_watched(const bool value)
217 {
218 if (value) {
219 atomic_set_bits(JVM_ACC_FIELD_ACCESS_WATCHED);
220 } else {
221 atomic_clear_bits(JVM_ACC_FIELD_ACCESS_WATCHED);
222 }
223 }
224 void set_is_field_modification_watched(const bool value)
225 {
226 if (value) {
227 atomic_set_bits(JVM_ACC_FIELD_MODIFICATION_WATCHED);
228 } else {
229 atomic_clear_bits(JVM_ACC_FIELD_MODIFICATION_WATCHED);
230 }
231 }
232 void set_field_has_generic_signature()
233 {
234 atomic_set_bits(JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE);
235 }
236
237 bool set_on_stack(const bool value)
238 {
239 if (value) {
240 return atomic_set_one_bit(JVM_ACC_ON_STACK);
241 } else {
242 atomic_clear_bits(JVM_ACC_ON_STACK);
243 return true; // Ignored
244 }
245 }
246 // Conversion
247 jshort as_short() const { return (jshort)_flags; }
248 jint as_int() const { return _flags; }
249
250 inline friend AccessFlags accessFlags_from(jint flags);
251
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62 JVM_ACC_HAS_VANILLA_CONSTRUCTOR = 0x20000000, // True if klass has a vanilla default constructor
63 JVM_ACC_HAS_FINALIZER = 0x40000000, // True if klass has a non-empty finalize() method
64 JVM_ACC_IS_CLONEABLE = (int)0x80000000,// True if klass supports the Clonable interface
65 JVM_ACC_HAS_FINAL_METHOD = 0x01000000, // True if klass has final method
66
67 // Klass* and Method* flags
68 JVM_ACC_HAS_LOCAL_VARIABLE_TABLE= 0x00200000,
69
70 JVM_ACC_PROMOTED_FLAGS = 0x00200000, // flags promoted from methods to the holding klass
71
72 // field flags
73 // Note: these flags must be defined in the low order 16 bits because
74 // InstanceKlass only stores a ushort worth of information from the
75 // AccessFlags value.
76 // These bits must not conflict with any other field-related access flags
77 // (e.g., ACC_ENUM).
78 // Note that the class-related ACC_ANNOTATION bit conflicts with these flags.
79 JVM_ACC_FIELD_ACCESS_WATCHED = 0x00002000, // field access is watched by JVMTI
80 JVM_ACC_FIELD_MODIFICATION_WATCHED = 0x00008000, // field modification is watched by JVMTI
81 JVM_ACC_FIELD_INTERNAL = 0x00000400, // internal field, same as JVM_ACC_ABSTRACT
82 JVM_ACC_FIELD_STABLE = 0x00000020, // @Stable field, same as JVM_ACC_SYNCHRONIZED and JVM_ACC_SUPER
83 JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE = 0x00000100, // (static) final field updated outside (class) initializer, same as JVM_ACC_NATIVE
84 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE = 0x00000800, // field has generic signature
85
86 JVM_ACC_FIELD_INTERNAL_FLAGS = JVM_ACC_FIELD_ACCESS_WATCHED |
87 JVM_ACC_FIELD_MODIFICATION_WATCHED |
88 JVM_ACC_FIELD_INTERNAL |
89 JVM_ACC_FIELD_STABLE |
90 JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE,
91
92 // flags accepted by set_field_flags()
93 JVM_ACC_FIELD_FLAGS = JVM_RECOGNIZED_FIELD_MODIFIERS | JVM_ACC_FIELD_INTERNAL_FLAGS
94
95 };
96
97
98 class AccessFlags VALUE_OBJ_CLASS_SPEC {
99 friend class VMStructs;
100 private:
101 jint _flags;
102
103 public:
134 bool is_old () const { return (_flags & JVM_ACC_IS_OLD ) != 0; }
135 bool is_obsolete () const { return (_flags & JVM_ACC_IS_OBSOLETE ) != 0; }
136 bool is_deleted () const { return (_flags & JVM_ACC_IS_DELETED ) != 0; }
137 bool is_prefixed_native () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE ) != 0; }
138
139 // Klass* flags
140 bool has_miranda_methods () const { return (_flags & JVM_ACC_HAS_MIRANDA_METHODS ) != 0; }
141 bool has_vanilla_constructor () const { return (_flags & JVM_ACC_HAS_VANILLA_CONSTRUCTOR) != 0; }
142 bool has_finalizer () const { return (_flags & JVM_ACC_HAS_FINALIZER ) != 0; }
143 bool has_final_method () const { return (_flags & JVM_ACC_HAS_FINAL_METHOD ) != 0; }
144 bool is_cloneable () const { return (_flags & JVM_ACC_IS_CLONEABLE ) != 0; }
145 // Klass* and Method* flags
146 bool has_localvariable_table () const { return (_flags & JVM_ACC_HAS_LOCAL_VARIABLE_TABLE) != 0; }
147 void set_has_localvariable_table() { atomic_set_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); }
148 void clear_has_localvariable_table() { atomic_clear_bits(JVM_ACC_HAS_LOCAL_VARIABLE_TABLE); }
149
150 // field flags
151 bool is_field_access_watched() const { return (_flags & JVM_ACC_FIELD_ACCESS_WATCHED) != 0; }
152 bool is_field_modification_watched() const
153 { return (_flags & JVM_ACC_FIELD_MODIFICATION_WATCHED) != 0; }
154 bool has_field_initialized_final_update() const
155 { return (_flags & JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE) != 0; }
156 bool on_stack() const { return (_flags & JVM_ACC_ON_STACK) != 0; }
157 bool is_internal() const { return (_flags & JVM_ACC_FIELD_INTERNAL) != 0; }
158 bool is_stable() const { return (_flags & JVM_ACC_FIELD_STABLE) != 0; }
159 bool field_has_generic_signature() const
160 { return (_flags & JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE) != 0; }
161
162 // get .class file flags
163 jint get_flags () const { return (_flags & JVM_ACC_WRITTEN_FLAGS); }
164
165 // Initialization
166 void add_promoted_flags(jint flags) { _flags |= (flags & JVM_ACC_PROMOTED_FLAGS); }
167 void set_field_flags(jint flags) {
168 assert((flags & JVM_ACC_FIELD_FLAGS) == flags, "only recognized flags");
169 _flags = (flags & JVM_ACC_FIELD_FLAGS);
170 }
171 void set_flags(jint flags) { _flags = (flags & JVM_ACC_WRITTEN_FLAGS); }
172
173 void set_queued_for_compilation() { atomic_set_bits(JVM_ACC_QUEUED); }
174 void clear_queued_for_compilation() { atomic_clear_bits(JVM_ACC_QUEUED); }
175
215 void set_has_miranda_methods() { atomic_set_bits(JVM_ACC_HAS_MIRANDA_METHODS); }
216
217 public:
218 // field flags
219 void set_is_field_access_watched(const bool value)
220 {
221 if (value) {
222 atomic_set_bits(JVM_ACC_FIELD_ACCESS_WATCHED);
223 } else {
224 atomic_clear_bits(JVM_ACC_FIELD_ACCESS_WATCHED);
225 }
226 }
227 void set_is_field_modification_watched(const bool value)
228 {
229 if (value) {
230 atomic_set_bits(JVM_ACC_FIELD_MODIFICATION_WATCHED);
231 } else {
232 atomic_clear_bits(JVM_ACC_FIELD_MODIFICATION_WATCHED);
233 }
234 }
235
236 void set_has_field_initialized_final_update(const bool value) {
237 if (value) {
238 atomic_set_bits(JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE);
239 } else {
240 atomic_clear_bits(JVM_ACC_FIELD_INITIALIZED_FINAL_UPDATE);
241 }
242 }
243
244 void set_field_has_generic_signature()
245 {
246 atomic_set_bits(JVM_ACC_FIELD_HAS_GENERIC_SIGNATURE);
247 }
248
249 bool set_on_stack(const bool value)
250 {
251 if (value) {
252 return atomic_set_one_bit(JVM_ACC_ON_STACK);
253 } else {
254 atomic_clear_bits(JVM_ACC_ON_STACK);
255 return true; // Ignored
256 }
257 }
258 // Conversion
259 jshort as_short() const { return (jshort)_flags; }
260 jint as_int() const { return _flags; }
261
262 inline friend AccessFlags accessFlags_from(jint flags);
263
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