58 unsigned int _max_nonstatic_oop_maps;
59
60 OopMapBlocksBuilder(unsigned int max_blocks);
61 OopMapBlock* last_oop_map() const;
62 void initialize_inherited_blocks(OopMapBlock* blocks, unsigned int nof_blocks);
63 void add(int offset, int count);
64 void copy(OopMapBlock* dst);
65 void compact();
66 void print_on(outputStream* st) const;
67 void print_value_on(outputStream* st) const;
68 };
69
70 // Values needed for oopmap and InstanceKlass creation
71 class FieldLayoutInfo : public ResourceObj {
72 public:
73 OopMapBlocksBuilder* oop_map_blocks;
74 int _instance_size;
75 int _nonstatic_field_size;
76 int _static_field_size;
77 bool _has_nonstatic_fields;
78 };
79
80 // Parser for for .class files
81 //
82 // The bytes describing the class file structure is read from a Stream object
83
84 class ClassFileParser {
85 friend class FieldLayoutBuilder;
86 friend class FieldLayout;
87
88 class ClassAnnotationCollector;
89 class FieldAllocationCount;
90 class FieldAnnotationCollector;
91
92 public:
93 // The ClassFileParser has an associated "publicity" level
94 // It is used to control which subsystems (if any)
95 // will observe the parsing (logging, events, tracing).
96 // Default level is "BROADCAST", which is equivalent to
97 // a "public" parsing attempt.
112
113 const ClassFileStream* _stream; // Actual input stream
114 Symbol* _class_name;
115 mutable ClassLoaderData* _loader_data;
116 const bool _is_hidden;
117 const bool _can_access_vm_annotations;
118 int _orig_cp_size;
119
120 // Metadata created before the instance klass is created. Must be deallocated
121 // if not transferred to the InstanceKlass upon successful class loading
122 // in which case these pointers have been set to null.
123 const InstanceKlass* _super_klass;
124 ConstantPool* _cp;
125 Array<u1>* _fieldinfo_stream;
126 Array<FieldStatus>* _fields_status;
127 Array<Method*>* _methods;
128 Array<u2>* _inner_classes;
129 Array<u2>* _nest_members;
130 u2 _nest_host;
131 Array<u2>* _permitted_subclasses;
132 Array<RecordComponent*>* _record_components;
133 Array<InstanceKlass*>* _local_interfaces;
134 Array<InstanceKlass*>* _transitive_interfaces;
135 Annotations* _combined_annotations;
136 AnnotationArray* _class_annotations;
137 AnnotationArray* _class_type_annotations;
138 Array<AnnotationArray*>* _fields_annotations;
139 Array<AnnotationArray*>* _fields_type_annotations;
140 InstanceKlass* _klass; // InstanceKlass* once created.
141 InstanceKlass* _klass_to_deallocate; // an InstanceKlass* to be destroyed
142
143 ClassAnnotationCollector* _parsed_annotations;
144 FieldAllocationCount* _fac;
145 FieldLayoutInfo* _field_info;
146 GrowableArray<FieldInfo>* _temp_field_info;
147 const intArray* _method_ordering;
148 GrowableArray<Method*>* _all_mirandas;
149
150 enum { fixed_buffer_size = 128 };
151 u_char _linenumbertable_buffer[fixed_buffer_size];
152
153 // Size of Java vtable (in words)
154 int _vtable_size;
155 int _itable_size;
156
157 int _num_miranda_methods;
158
159 Handle _protection_domain;
160 AccessFlags _access_flags;
161
162 // for tracing and notifications
163 Publicity _pub_level;
164
165 // Used to keep track of whether a constant pool item 19 or 20 is found. These
166 // correspond to CONSTANT_Module and CONSTANT_Package tags and are not allowed
167 // in regular class files. For class file version >= 53, a CFE cannot be thrown
168 // immediately when these are seen because a NCDFE must be thrown if the class's
169 // access_flags have ACC_MODULE set. But, the access_flags haven't been looked
170 // at yet. So, the bad constant pool item is cached here. A value of zero
171 // means that no constant pool item 19 or 20 was found.
172 short _bad_constant_seen;
173
174 // class attributes parsed before the instance klass is created:
175 bool _synthetic_flag;
176 int _sde_length;
177 const char* _sde_buffer;
178 u2 _sourcefile_index;
179 u2 _generic_signature_index;
180
181 u2 _major_version;
182 u2 _minor_version;
183 u2 _this_class_index;
184 u2 _super_class_index;
185 u2 _itfs_len;
186 u2 _java_fields_count;
187
188 bool _need_verify;
189 bool _relax_verify;
190
191 bool _has_nonstatic_concrete_methods;
192 bool _declares_nonstatic_concrete_methods;
193 bool _has_localvariable_table;
194 bool _has_final_method;
195 bool _has_contended_fields;
196
197 // precomputed flags
198 bool _has_finalizer;
199 bool _has_empty_finalizer;
200 bool _has_vanilla_constructor;
201 int _max_bootstrap_specifier_index; // detects BSS values
202
203 void parse_stream(const ClassFileStream* const stream, TRAPS);
204
205 void mangle_hidden_class_name(InstanceKlass* const ik);
206
207 void post_process_parsed_stream(const ClassFileStream* const stream,
208 ConstantPool* cp,
209 TRAPS);
210
211 void fill_instance_klass(InstanceKlass* ik, bool cf_changed_in_CFLH,
212 const ClassInstanceInfo& cl_inst_info, TRAPS);
213
214 void set_klass(InstanceKlass* instance);
215
216 void set_class_bad_constant_seen(short bad_constant);
224 void apply_parsed_class_attributes(InstanceKlass* k); // update k
225 void apply_parsed_class_metadata(InstanceKlass* k, int fields_count);
226 void clear_class_metadata();
227
228 // Constant pool parsing
229 void parse_constant_pool_entries(const ClassFileStream* const stream,
230 ConstantPool* cp,
231 const int length,
232 TRAPS);
233
234 void parse_constant_pool(const ClassFileStream* const cfs,
235 ConstantPool* const cp,
236 const int length,
237 TRAPS);
238
239 // Interface parsing
240 void parse_interfaces(const ClassFileStream* const stream,
241 const int itfs_len,
242 ConstantPool* const cp,
243 bool* has_nonstatic_concrete_methods,
244 TRAPS);
245
246 const InstanceKlass* parse_super_class(ConstantPool* const cp,
247 const int super_class_index,
248 const bool need_verify,
249 TRAPS);
250
251 // Field parsing
252 void parse_field_attributes(const ClassFileStream* const cfs,
253 u2 attributes_count,
254 bool is_static,
255 u2 signature_index,
256 u2* const constantvalue_index_addr,
257 bool* const is_synthetic_addr,
258 u2* const generic_signature_index_addr,
259 FieldAnnotationCollector* parsed_annotations,
260 TRAPS);
261
262 void parse_fields(const ClassFileStream* const cfs,
263 bool is_interface,
264 FieldAllocationCount* const fac,
265 ConstantPool* cp,
266 const int cp_size,
267 u2* const java_fields_count_ptr,
268 TRAPS);
269
270 // Method parsing
271 Method* parse_method(const ClassFileStream* const cfs,
272 bool is_interface,
273 const ConstantPool* cp,
274 bool* const has_localvariable_table,
275 TRAPS);
276
277 void parse_methods(const ClassFileStream* const cfs,
278 bool is_interface,
279 bool* const has_localvariable_table,
280 bool* const has_final_method,
281 bool* const declares_nonstatic_concrete_methods,
282 TRAPS);
283
284 const unsafe_u2* parse_exception_table(const ClassFileStream* const stream,
285 u4 code_length,
286 u4 exception_table_length,
287 TRAPS);
288
289 void parse_linenumber_table(u4 code_attribute_length,
290 u4 code_length,
291 CompressedLineNumberWriteStream**const write_stream,
292 TRAPS);
293
294 const unsafe_u2* parse_localvariable_table(const ClassFileStream* const cfs,
295 u4 code_length,
296 u2 max_locals,
297 u4 code_attribute_length,
298 u2* const localvariable_table_length,
313
314 // Check for circularity in InnerClasses attribute.
315 bool check_inner_classes_circularity(const ConstantPool* cp, int length, TRAPS);
316
317 u2 parse_classfile_inner_classes_attribute(const ClassFileStream* const cfs,
318 const ConstantPool* cp,
319 const u1* const inner_classes_attribute_start,
320 bool parsed_enclosingmethod_attribute,
321 u2 enclosing_method_class_index,
322 u2 enclosing_method_method_index,
323 TRAPS);
324
325 u2 parse_classfile_nest_members_attribute(const ClassFileStream* const cfs,
326 const u1* const nest_members_attribute_start,
327 TRAPS);
328
329 u2 parse_classfile_permitted_subclasses_attribute(const ClassFileStream* const cfs,
330 const u1* const permitted_subclasses_attribute_start,
331 TRAPS);
332
333 u2 parse_classfile_record_attribute(const ClassFileStream* const cfs,
334 const ConstantPool* cp,
335 const u1* const record_attribute_start,
336 TRAPS);
337
338 void parse_classfile_attributes(const ClassFileStream* const cfs,
339 ConstantPool* cp,
340 ClassAnnotationCollector* parsed_annotations,
341 TRAPS);
342
343 void parse_classfile_synthetic_attribute();
344 void parse_classfile_signature_attribute(const ClassFileStream* const cfs, TRAPS);
345 void parse_classfile_bootstrap_methods_attribute(const ClassFileStream* const cfs,
346 ConstantPool* cp,
347 u4 attribute_length,
348 TRAPS);
349
350 // Annotations handling
351 AnnotationArray* assemble_annotations(const u1* const runtime_visible_annotations,
352 int runtime_visible_annotations_length,
431 inline void guarantee_property(bool b,
432 const char* msg,
433 const char *name,
434 TRAPS) const {
435 if (!b) { classfile_parse_error(msg, name, THREAD); return; }
436 }
437
438 inline void guarantee_property(bool b,
439 const char* msg,
440 int index,
441 const char *name,
442 TRAPS) const {
443 if (!b) { classfile_parse_error(msg, index, name, THREAD); return; }
444 }
445
446 void throwIllegalSignature(const char* type,
447 const Symbol* name,
448 const Symbol* sig,
449 TRAPS) const;
450
451 void verify_constantvalue(const ConstantPool* const cp,
452 int constantvalue_index,
453 int signature_index,
454 TRAPS) const;
455
456 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) const;
457 void verify_legal_class_name(const Symbol* name, TRAPS) const;
458 void verify_legal_field_name(const Symbol* name, TRAPS) const;
459 void verify_legal_method_name(const Symbol* name, TRAPS) const;
460
461 void verify_legal_field_signature(const Symbol* fieldname,
462 const Symbol* signature,
463 TRAPS) const;
464 int verify_legal_method_signature(const Symbol* methodname,
465 const Symbol* signature,
466 TRAPS) const;
467 void verify_legal_name_with_signature(const Symbol* name,
468 const Symbol* signature,
469 TRAPS) const;
470
471 void verify_class_version(u2 major, u2 minor, Symbol* class_name, TRAPS);
472
473 void verify_legal_class_modifiers(jint flags, TRAPS) const;
474 void verify_legal_field_modifiers(jint flags, bool is_interface, TRAPS) const;
475 void verify_legal_method_modifiers(jint flags,
476 bool is_interface,
477 const Symbol* name,
478 TRAPS) const;
479
480 void check_super_class_access(const InstanceKlass* this_klass,
481 TRAPS);
482
483 void check_super_interface_access(const InstanceKlass* this_klass,
484 TRAPS);
485
486 const char* skip_over_field_signature(const char* signature,
487 bool void_ok,
488 unsigned int length,
489 TRAPS) const;
490
491 // Wrapper for constantTag.is_klass_[or_]reference.
492 // In older versions of the VM, Klass*s cannot sneak into early phases of
493 // constant pool construction, but in later versions they can.
494 // %%% Let's phase out the old is_klass_reference.
495 bool valid_klass_reference_at(int index) const {
496 return _cp->is_within_bounds(index) &&
514
515 void copy_method_annotations(ConstMethod* cm,
516 const u1* runtime_visible_annotations,
517 int runtime_visible_annotations_length,
518 const u1* runtime_invisible_annotations,
519 int runtime_invisible_annotations_length,
520 const u1* runtime_visible_parameter_annotations,
521 int runtime_visible_parameter_annotations_length,
522 const u1* runtime_invisible_parameter_annotations,
523 int runtime_invisible_parameter_annotations_length,
524 const u1* runtime_visible_type_annotations,
525 int runtime_visible_type_annotations_length,
526 const u1* runtime_invisible_type_annotations,
527 int runtime_invisible_type_annotations_length,
528 const u1* annotation_default,
529 int annotation_default_length,
530 TRAPS);
531
532 void update_class_name(Symbol* new_name);
533
534 public:
535 ClassFileParser(ClassFileStream* stream,
536 Symbol* name,
537 ClassLoaderData* loader_data,
538 const ClassLoadInfo* cl_info,
539 Publicity pub_level,
540 TRAPS);
541
542 ~ClassFileParser();
543
544 InstanceKlass* create_instance_klass(bool cf_changed_in_CFLH, const ClassInstanceInfo& cl_inst_info, TRAPS);
545
546 const ClassFileStream* clone_stream() const;
547
548 void set_klass_to_deallocate(InstanceKlass* klass);
549
550 int static_field_size() const;
551 int total_oop_map_count() const;
552 jint layout_size() const;
553
554 int vtable_size() const { return _vtable_size; }
555 int itable_size() const { return _itable_size; }
556
557 u2 this_class_index() const { return _this_class_index; }
558
559 bool is_hidden() const { return _is_hidden; }
560 bool is_interface() const { return _access_flags.is_interface(); }
561
562 ClassLoaderData* loader_data() const { return _loader_data; }
563 const Symbol* class_name() const { return _class_name; }
564 const InstanceKlass* super_klass() const { return _super_klass; }
565
566 ReferenceType super_reference_type() const;
567 bool is_instance_ref_klass() const;
568 bool is_java_lang_ref_Reference_subclass() const;
569
570 AccessFlags access_flags() const { return _access_flags; }
571
572 bool is_internal() const { return INTERNAL == _pub_level; }
573
574 static bool verify_unqualified_name(const char* name, unsigned int length, int type);
575
576 #ifdef ASSERT
577 static bool is_internal_format(Symbol* class_name);
578 #endif
579
580 };
|
58 unsigned int _max_nonstatic_oop_maps;
59
60 OopMapBlocksBuilder(unsigned int max_blocks);
61 OopMapBlock* last_oop_map() const;
62 void initialize_inherited_blocks(OopMapBlock* blocks, unsigned int nof_blocks);
63 void add(int offset, int count);
64 void copy(OopMapBlock* dst);
65 void compact();
66 void print_on(outputStream* st) const;
67 void print_value_on(outputStream* st) const;
68 };
69
70 // Values needed for oopmap and InstanceKlass creation
71 class FieldLayoutInfo : public ResourceObj {
72 public:
73 OopMapBlocksBuilder* oop_map_blocks;
74 int _instance_size;
75 int _nonstatic_field_size;
76 int _static_field_size;
77 bool _has_nonstatic_fields;
78 bool _is_naturally_atomic;
79 bool _has_inline_fields;
80 };
81
82 // Parser for for .class files
83 //
84 // The bytes describing the class file structure is read from a Stream object
85
86 class ClassFileParser {
87 friend class FieldLayoutBuilder;
88 friend class FieldLayout;
89
90 class ClassAnnotationCollector;
91 class FieldAllocationCount;
92 class FieldAnnotationCollector;
93
94 public:
95 // The ClassFileParser has an associated "publicity" level
96 // It is used to control which subsystems (if any)
97 // will observe the parsing (logging, events, tracing).
98 // Default level is "BROADCAST", which is equivalent to
99 // a "public" parsing attempt.
114
115 const ClassFileStream* _stream; // Actual input stream
116 Symbol* _class_name;
117 mutable ClassLoaderData* _loader_data;
118 const bool _is_hidden;
119 const bool _can_access_vm_annotations;
120 int _orig_cp_size;
121
122 // Metadata created before the instance klass is created. Must be deallocated
123 // if not transferred to the InstanceKlass upon successful class loading
124 // in which case these pointers have been set to null.
125 const InstanceKlass* _super_klass;
126 ConstantPool* _cp;
127 Array<u1>* _fieldinfo_stream;
128 Array<FieldStatus>* _fields_status;
129 Array<Method*>* _methods;
130 Array<u2>* _inner_classes;
131 Array<u2>* _nest_members;
132 u2 _nest_host;
133 Array<u2>* _permitted_subclasses;
134 Array<u2>* _preload_classes;
135 Array<RecordComponent*>* _record_components;
136 Array<InstanceKlass*>* _local_interfaces;
137 GrowableArray<u2>* _local_interface_indexes;
138 Array<InstanceKlass*>* _transitive_interfaces;
139 Annotations* _combined_annotations;
140 AnnotationArray* _class_annotations;
141 AnnotationArray* _class_type_annotations;
142 Array<AnnotationArray*>* _fields_annotations;
143 Array<AnnotationArray*>* _fields_type_annotations;
144 InstanceKlass* _klass; // InstanceKlass* once created.
145 InstanceKlass* _klass_to_deallocate; // an InstanceKlass* to be destroyed
146
147 ClassAnnotationCollector* _parsed_annotations;
148 FieldAllocationCount* _fac;
149 FieldLayoutInfo* _field_info;
150 Array<InlineKlass*>* _inline_type_field_klasses;
151 GrowableArray<FieldInfo>* _temp_field_info;
152 const intArray* _method_ordering;
153 GrowableArray<Method*>* _all_mirandas;
154
155 enum { fixed_buffer_size = 128 };
156 u_char _linenumbertable_buffer[fixed_buffer_size];
157
158 // Size of Java vtable (in words)
159 int _vtable_size;
160 int _itable_size;
161
162 int _num_miranda_methods;
163
164 int _alignment;
165 int _first_field_offset;
166 int _exact_size_in_bytes;
167
168 Handle _protection_domain;
169 AccessFlags _access_flags;
170
171 // for tracing and notifications
172 Publicity _pub_level;
173
174 // Used to keep track of whether a constant pool item 19 or 20 is found. These
175 // correspond to CONSTANT_Module and CONSTANT_Package tags and are not allowed
176 // in regular class files. For class file version >= 53, a CFE cannot be thrown
177 // immediately when these are seen because a NCDFE must be thrown if the class's
178 // access_flags have ACC_MODULE set. But, the access_flags haven't been looked
179 // at yet. So, the bad constant pool item is cached here. A value of zero
180 // means that no constant pool item 19 or 20 was found.
181 short _bad_constant_seen;
182
183 // class attributes parsed before the instance klass is created:
184 bool _synthetic_flag;
185 int _sde_length;
186 const char* _sde_buffer;
187 u2 _sourcefile_index;
188 u2 _generic_signature_index;
189
190 u2 _major_version;
191 u2 _minor_version;
192 u2 _this_class_index;
193 u2 _super_class_index;
194 u2 _itfs_len;
195 u2 _java_fields_count;
196
197 bool _need_verify;
198 bool _relax_verify;
199
200 bool _has_nonstatic_concrete_methods;
201 bool _declares_nonstatic_concrete_methods;
202 bool _has_localvariable_table;
203 bool _has_final_method;
204 bool _has_contended_fields;
205
206 bool _has_inline_type_fields;
207 bool _has_nonstatic_fields;
208 bool _is_empty_inline_type;
209 bool _is_naturally_atomic;
210 bool _is_declared_atomic;
211 bool _carries_value_modifier; // Has ACC_VALUE mddifier or one of its super types has
212 bool _carries_identity_modifier; // Has ACC_IDENTITY modifier or one of its super types has
213
214 // precomputed flags
215 bool _has_finalizer;
216 bool _has_empty_finalizer;
217 bool _has_vanilla_constructor;
218 int _max_bootstrap_specifier_index; // detects BSS values
219
220 void parse_stream(const ClassFileStream* const stream, TRAPS);
221
222 void mangle_hidden_class_name(InstanceKlass* const ik);
223
224 void post_process_parsed_stream(const ClassFileStream* const stream,
225 ConstantPool* cp,
226 TRAPS);
227
228 void fill_instance_klass(InstanceKlass* ik, bool cf_changed_in_CFLH,
229 const ClassInstanceInfo& cl_inst_info, TRAPS);
230
231 void set_klass(InstanceKlass* instance);
232
233 void set_class_bad_constant_seen(short bad_constant);
241 void apply_parsed_class_attributes(InstanceKlass* k); // update k
242 void apply_parsed_class_metadata(InstanceKlass* k, int fields_count);
243 void clear_class_metadata();
244
245 // Constant pool parsing
246 void parse_constant_pool_entries(const ClassFileStream* const stream,
247 ConstantPool* cp,
248 const int length,
249 TRAPS);
250
251 void parse_constant_pool(const ClassFileStream* const cfs,
252 ConstantPool* const cp,
253 const int length,
254 TRAPS);
255
256 // Interface parsing
257 void parse_interfaces(const ClassFileStream* const stream,
258 const int itfs_len,
259 ConstantPool* const cp,
260 bool* has_nonstatic_concrete_methods,
261 bool* is_declared_atomic,
262 TRAPS);
263
264 const InstanceKlass* parse_super_class(ConstantPool* const cp,
265 const int super_class_index,
266 const bool need_verify,
267 TRAPS);
268
269 // Field parsing
270 void parse_field_attributes(const ClassFileStream* const cfs,
271 u2 attributes_count,
272 bool is_static,
273 u2 signature_index,
274 u2* const constantvalue_index_addr,
275 bool* const is_synthetic_addr,
276 u2* const generic_signature_index_addr,
277 FieldAnnotationCollector* parsed_annotations,
278 TRAPS);
279
280 void parse_fields(const ClassFileStream* const cfs,
281 AccessFlags class_access_flags,
282 FieldAllocationCount* const fac,
283 ConstantPool* cp,
284 const int cp_size,
285 u2* const java_fields_count_ptr,
286 TRAPS);
287
288 // Method parsing
289 Method* parse_method(const ClassFileStream* const cfs,
290 bool is_interface,
291 bool is_value_class,
292 bool is_abstract_class,
293 const ConstantPool* cp,
294 bool* const has_localvariable_table,
295 TRAPS);
296
297 void parse_methods(const ClassFileStream* const cfs,
298 bool is_interface,
299 bool is_value_class,
300 bool is_abstract_class,
301 bool* const has_localvariable_table,
302 bool* const has_final_method,
303 bool* const declares_nonstatic_concrete_methods,
304 TRAPS);
305
306 const unsafe_u2* parse_exception_table(const ClassFileStream* const stream,
307 u4 code_length,
308 u4 exception_table_length,
309 TRAPS);
310
311 void parse_linenumber_table(u4 code_attribute_length,
312 u4 code_length,
313 CompressedLineNumberWriteStream**const write_stream,
314 TRAPS);
315
316 const unsafe_u2* parse_localvariable_table(const ClassFileStream* const cfs,
317 u4 code_length,
318 u2 max_locals,
319 u4 code_attribute_length,
320 u2* const localvariable_table_length,
335
336 // Check for circularity in InnerClasses attribute.
337 bool check_inner_classes_circularity(const ConstantPool* cp, int length, TRAPS);
338
339 u2 parse_classfile_inner_classes_attribute(const ClassFileStream* const cfs,
340 const ConstantPool* cp,
341 const u1* const inner_classes_attribute_start,
342 bool parsed_enclosingmethod_attribute,
343 u2 enclosing_method_class_index,
344 u2 enclosing_method_method_index,
345 TRAPS);
346
347 u2 parse_classfile_nest_members_attribute(const ClassFileStream* const cfs,
348 const u1* const nest_members_attribute_start,
349 TRAPS);
350
351 u2 parse_classfile_permitted_subclasses_attribute(const ClassFileStream* const cfs,
352 const u1* const permitted_subclasses_attribute_start,
353 TRAPS);
354
355 u2 parse_classfile_preload_attribute(const ClassFileStream* const cfs,
356 const u1* const preload_attribute_start,
357 TRAPS);
358
359 u2 parse_classfile_record_attribute(const ClassFileStream* const cfs,
360 const ConstantPool* cp,
361 const u1* const record_attribute_start,
362 TRAPS);
363
364 void parse_classfile_attributes(const ClassFileStream* const cfs,
365 ConstantPool* cp,
366 ClassAnnotationCollector* parsed_annotations,
367 TRAPS);
368
369 void parse_classfile_synthetic_attribute();
370 void parse_classfile_signature_attribute(const ClassFileStream* const cfs, TRAPS);
371 void parse_classfile_bootstrap_methods_attribute(const ClassFileStream* const cfs,
372 ConstantPool* cp,
373 u4 attribute_length,
374 TRAPS);
375
376 // Annotations handling
377 AnnotationArray* assemble_annotations(const u1* const runtime_visible_annotations,
378 int runtime_visible_annotations_length,
457 inline void guarantee_property(bool b,
458 const char* msg,
459 const char *name,
460 TRAPS) const {
461 if (!b) { classfile_parse_error(msg, name, THREAD); return; }
462 }
463
464 inline void guarantee_property(bool b,
465 const char* msg,
466 int index,
467 const char *name,
468 TRAPS) const {
469 if (!b) { classfile_parse_error(msg, index, name, THREAD); return; }
470 }
471
472 void throwIllegalSignature(const char* type,
473 const Symbol* name,
474 const Symbol* sig,
475 TRAPS) const;
476
477 void throwInlineTypeLimitation(THREAD_AND_LOCATION_DECL,
478 const char* msg,
479 const Symbol* name = nullptr,
480 const Symbol* sig = nullptr) const;
481
482 void verify_constantvalue(const ConstantPool* const cp,
483 int constantvalue_index,
484 int signature_index,
485 TRAPS) const;
486
487 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) const;
488 void verify_legal_class_name(const Symbol* name, TRAPS) const;
489 void verify_legal_field_name(const Symbol* name, TRAPS) const;
490 void verify_legal_method_name(const Symbol* name, TRAPS) const;
491
492 void verify_legal_field_signature(const Symbol* fieldname,
493 const Symbol* signature,
494 TRAPS) const;
495 int verify_legal_method_signature(const Symbol* methodname,
496 const Symbol* signature,
497 TRAPS) const;
498 void verify_legal_name_with_signature(const Symbol* name,
499 const Symbol* signature,
500 TRAPS) const;
501
502 void verify_class_version(u2 major, u2 minor, Symbol* class_name, TRAPS);
503
504 void verify_legal_class_modifiers(jint flags, const char* name, bool is_Object, TRAPS) const;
505 void verify_legal_field_modifiers(jint flags,
506 AccessFlags class_access_flags,
507 TRAPS) const;
508 void verify_legal_method_modifiers(jint flags,
509 AccessFlags class_access_flags,
510 const Symbol* name,
511 TRAPS) const;
512
513 void check_super_class_access(const InstanceKlass* this_klass,
514 TRAPS);
515
516 void check_super_interface_access(const InstanceKlass* this_klass,
517 TRAPS);
518
519 const char* skip_over_field_signature(const char* signature,
520 bool void_ok,
521 unsigned int length,
522 TRAPS) const;
523
524 // Wrapper for constantTag.is_klass_[or_]reference.
525 // In older versions of the VM, Klass*s cannot sneak into early phases of
526 // constant pool construction, but in later versions they can.
527 // %%% Let's phase out the old is_klass_reference.
528 bool valid_klass_reference_at(int index) const {
529 return _cp->is_within_bounds(index) &&
547
548 void copy_method_annotations(ConstMethod* cm,
549 const u1* runtime_visible_annotations,
550 int runtime_visible_annotations_length,
551 const u1* runtime_invisible_annotations,
552 int runtime_invisible_annotations_length,
553 const u1* runtime_visible_parameter_annotations,
554 int runtime_visible_parameter_annotations_length,
555 const u1* runtime_invisible_parameter_annotations,
556 int runtime_invisible_parameter_annotations_length,
557 const u1* runtime_visible_type_annotations,
558 int runtime_visible_type_annotations_length,
559 const u1* runtime_invisible_type_annotations,
560 int runtime_invisible_type_annotations_length,
561 const u1* annotation_default,
562 int annotation_default_length,
563 TRAPS);
564
565 void update_class_name(Symbol* new_name);
566
567 // Check if the class file supports inline types
568 bool supports_inline_types() const;
569
570 public:
571 ClassFileParser(ClassFileStream* stream,
572 Symbol* name,
573 ClassLoaderData* loader_data,
574 const ClassLoadInfo* cl_info,
575 Publicity pub_level,
576 TRAPS);
577
578 ~ClassFileParser();
579
580 InstanceKlass* create_instance_klass(bool cf_changed_in_CFLH, const ClassInstanceInfo& cl_inst_info, TRAPS);
581
582 const ClassFileStream* clone_stream() const;
583
584 void set_klass_to_deallocate(InstanceKlass* klass);
585
586 int static_field_size() const;
587 int total_oop_map_count() const;
588 jint layout_size() const;
589
590 int vtable_size() const { return _vtable_size; }
591 int itable_size() const { return _itable_size; }
592
593 u2 this_class_index() const { return _this_class_index; }
594
595 bool is_hidden() const { return _is_hidden; }
596 bool is_interface() const { return _access_flags.is_interface(); }
597 bool is_inline_type() const { return _access_flags.is_value_class() && !_access_flags.is_interface() && !_access_flags.is_abstract(); }
598 bool is_value_class() const { return _access_flags.is_value_class(); }
599 bool is_abstract_class() const { return _access_flags.is_abstract(); }
600 bool is_identity_class() const { return _access_flags.is_identity_class(); }
601 bool is_value_capable_class() const;
602 bool has_inline_fields() const { return _has_inline_type_fields; }
603 bool carries_identity_modifier() const { return _carries_identity_modifier; }
604 void set_carries_identity_modifier() { _carries_identity_modifier = true; }
605 bool carries_value_modifier() const { return _carries_value_modifier; }
606 void set_carries_value_modifier() { _carries_value_modifier = true; }
607
608 u2 java_fields_count() const { return _java_fields_count; }
609
610 ClassLoaderData* loader_data() const { return _loader_data; }
611 const Symbol* class_name() const { return _class_name; }
612 const InstanceKlass* super_klass() const { return _super_klass; }
613
614 ReferenceType super_reference_type() const;
615 bool is_instance_ref_klass() const;
616 bool is_java_lang_ref_Reference_subclass() const;
617
618 AccessFlags access_flags() const { return _access_flags; }
619
620 bool is_internal() const { return INTERNAL == _pub_level; }
621
622 static bool verify_unqualified_name(const char* name, unsigned int length, int type);
623
624 #ifdef ASSERT
625 static bool is_internal_format(Symbol* class_name);
626 #endif
627
628 };
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