57 unsigned int _nonstatic_oop_map_count;
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 FieldAnnotationCollector;
90
91 public:
92 // The ClassFileParser has an associated "publicity" level
93 // It is used to control which subsystems (if any)
94 // will observe the parsing (logging, events, tracing).
95 // Default level is "BROADCAST", which is equivalent to
96 // a "public" parsing attempt.
97 //
112 const ClassFileStream* _stream; // Actual input stream
113 Symbol* _class_name;
114 mutable ClassLoaderData* _loader_data;
115 const bool _is_hidden;
116 const bool _can_access_vm_annotations;
117 int _orig_cp_size;
118 unsigned int _static_oop_count;
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 FieldLayoutInfo* _field_info;
145 GrowableArray<FieldInfo>* _temp_field_info;
146 const intArray* _method_ordering;
147 GrowableArray<Method*>* _all_mirandas;
148
149 enum { fixed_buffer_size = 128 };
150 u_char _linenumbertable_buffer[fixed_buffer_size];
151
152 // Size of Java vtable (in words)
153 int _vtable_size;
154 int _itable_size;
155
156 int _num_miranda_methods;
157
158 Handle _protection_domain;
159 AccessFlags _access_flags;
160
161 // for tracing and notifications
162 Publicity _pub_level;
163
164 // Used to keep track of whether a constant pool item 19 or 20 is found. These
165 // correspond to CONSTANT_Module and CONSTANT_Package tags and are not allowed
166 // in regular class files. For class file version >= 53, a CFE cannot be thrown
167 // immediately when these are seen because a NCDFE must be thrown if the class's
168 // access_flags have ACC_MODULE set. But, the access_flags haven't been looked
169 // at yet. So, the bad constant pool item is cached here. A value of zero
170 // means that no constant pool item 19 or 20 was found.
171 short _bad_constant_seen;
172
173 // class attributes parsed before the instance klass is created:
174 bool _synthetic_flag;
175 int _sde_length;
176 const char* _sde_buffer;
177 u2 _sourcefile_index;
178 u2 _generic_signature_index;
179
180 u2 _major_version;
181 u2 _minor_version;
182 u2 _this_class_index;
183 u2 _super_class_index;
184 u2 _itfs_len;
185 u2 _java_fields_count;
186
187 bool _need_verify;
188
189 bool _has_nonstatic_concrete_methods;
190 bool _declares_nonstatic_concrete_methods;
191 bool _has_localvariable_table;
192 bool _has_final_method;
193 bool _has_contended_fields;
194
195 // precomputed flags
196 bool _has_finalizer;
197 bool _has_empty_finalizer;
198 int _max_bootstrap_specifier_index; // detects BSS values
199
200 void parse_stream(const ClassFileStream* const stream, TRAPS);
201
202 void mangle_hidden_class_name(InstanceKlass* const ik);
203
204 void post_process_parsed_stream(const ClassFileStream* const stream,
205 ConstantPool* cp,
206 TRAPS);
207
208 void fill_instance_klass(InstanceKlass* ik, bool cf_changed_in_CFLH,
209 const ClassInstanceInfo& cl_inst_info, TRAPS);
210
211 void set_klass(InstanceKlass* instance);
212
213 void set_class_bad_constant_seen(short bad_constant);
214 short class_bad_constant_seen() { return _bad_constant_seen; }
240 bool* has_nonstatic_concrete_methods,
241 TRAPS);
242
243 const InstanceKlass* parse_super_class(ConstantPool* const cp,
244 const int super_class_index,
245 const bool need_verify,
246 TRAPS);
247
248 // Field parsing
249 void parse_field_attributes(const ClassFileStream* const cfs,
250 u2 attributes_count,
251 bool is_static,
252 u2 signature_index,
253 u2* const constantvalue_index_addr,
254 bool* const is_synthetic_addr,
255 u2* const generic_signature_index_addr,
256 FieldAnnotationCollector* parsed_annotations,
257 TRAPS);
258
259 void parse_fields(const ClassFileStream* const cfs,
260 bool is_interface,
261 ConstantPool* cp,
262 const int cp_size,
263 u2* const java_fields_count_ptr,
264 TRAPS);
265
266 // Method parsing
267 Method* parse_method(const ClassFileStream* const cfs,
268 bool is_interface,
269 const ConstantPool* cp,
270 bool* const has_localvariable_table,
271 TRAPS);
272
273 void parse_methods(const ClassFileStream* const cfs,
274 bool is_interface,
275 bool* const has_localvariable_table,
276 bool* const has_final_method,
277 bool* const declares_nonstatic_concrete_methods,
278 TRAPS);
279
280 const unsafe_u2* parse_exception_table(const ClassFileStream* const stream,
281 u4 code_length,
282 u4 exception_table_length,
283 TRAPS);
284
285 void parse_linenumber_table(u4 code_attribute_length,
286 u4 code_length,
287 CompressedLineNumberWriteStream**const write_stream,
288 TRAPS);
289
290 const unsafe_u2* parse_localvariable_table(const ClassFileStream* const cfs,
291 u4 code_length,
292 u2 max_locals,
293 u4 code_attribute_length,
294 u2* const localvariable_table_length,
309
310 // Check for circularity in InnerClasses attribute.
311 bool check_inner_classes_circularity(const ConstantPool* cp, int length, TRAPS);
312
313 u2 parse_classfile_inner_classes_attribute(const ClassFileStream* const cfs,
314 const ConstantPool* cp,
315 const u1* const inner_classes_attribute_start,
316 bool parsed_enclosingmethod_attribute,
317 u2 enclosing_method_class_index,
318 u2 enclosing_method_method_index,
319 TRAPS);
320
321 u2 parse_classfile_nest_members_attribute(const ClassFileStream* const cfs,
322 const u1* const nest_members_attribute_start,
323 TRAPS);
324
325 u2 parse_classfile_permitted_subclasses_attribute(const ClassFileStream* const cfs,
326 const u1* const permitted_subclasses_attribute_start,
327 TRAPS);
328
329 u4 parse_classfile_record_attribute(const ClassFileStream* const cfs,
330 const ConstantPool* cp,
331 const u1* const record_attribute_start,
332 TRAPS);
333
334 void parse_classfile_attributes(const ClassFileStream* const cfs,
335 ConstantPool* cp,
336 ClassAnnotationCollector* parsed_annotations,
337 TRAPS);
338
339 void parse_classfile_synthetic_attribute();
340 void parse_classfile_signature_attribute(const ClassFileStream* const cfs, TRAPS);
341 void parse_classfile_bootstrap_methods_attribute(const ClassFileStream* const cfs,
342 ConstantPool* cp,
343 u4 attribute_length,
344 TRAPS);
345
346 // Annotations handling
347 AnnotationArray* allocate_annotations(const u1* const anno,
348 int anno_length,
401 const char *name,
402 TRAPS) const {
403 if (!b) { classfile_parse_error(msg, index, name, THREAD); return; }
404 }
405
406 void throwIllegalSignature(const char* type,
407 const Symbol* name,
408 const Symbol* sig,
409 TRAPS) const;
410
411 void verify_constantvalue(const ConstantPool* const cp,
412 int constantvalue_index,
413 int signature_index,
414 TRAPS) const;
415
416 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) const;
417 void verify_legal_class_name(const Symbol* name, TRAPS) const;
418 void verify_legal_field_name(const Symbol* name, TRAPS) const;
419 void verify_legal_method_name(const Symbol* name, TRAPS) const;
420
421 void verify_legal_field_signature(const Symbol* fieldname,
422 const Symbol* signature,
423 TRAPS) const;
424 int verify_legal_method_signature(const Symbol* methodname,
425 const Symbol* signature,
426 TRAPS) const;
427 void verify_legal_name_with_signature(const Symbol* name,
428 const Symbol* signature,
429 TRAPS) const;
430
431 void verify_class_version(u2 major, u2 minor, Symbol* class_name, TRAPS);
432
433 void verify_legal_class_modifiers(jint flags, TRAPS) const;
434 void verify_legal_field_modifiers(jint flags, bool is_interface, TRAPS) const;
435 void verify_legal_method_modifiers(jint flags,
436 bool is_interface,
437 const Symbol* name,
438 TRAPS) const;
439
440 void check_super_class_access(const InstanceKlass* this_klass,
441 TRAPS);
442
443 void check_super_interface_access(const InstanceKlass* this_klass,
444 TRAPS);
445
446 const char* skip_over_field_signature(const char* signature,
447 bool void_ok,
448 unsigned int length,
449 TRAPS) const;
450
451 // Wrapper for constantTag.is_klass_[or_]reference.
452 // In older versions of the VM, Klass*s cannot sneak into early phases of
453 // constant pool construction, but in later versions they can.
454 // %%% Let's phase out the old is_klass_reference.
455 bool valid_klass_reference_at(int index) const {
456 return _cp->is_within_bounds(index) &&
468 u2* const localvariable_table_length,
469 const unsafe_u2** const localvariable_table_start,
470 int lvtt_cnt,
471 u2* const localvariable_type_table_length,
472 const unsafe_u2** const localvariable_type_table_start,
473 TRAPS);
474
475 void copy_method_annotations(ConstMethod* cm,
476 const u1* runtime_visible_annotations,
477 int runtime_visible_annotations_length,
478 const u1* runtime_visible_parameter_annotations,
479 int runtime_visible_parameter_annotations_length,
480 const u1* runtime_visible_type_annotations,
481 int runtime_visible_type_annotations_length,
482 const u1* annotation_default,
483 int annotation_default_length,
484 TRAPS);
485
486 void update_class_name(Symbol* new_name);
487
488 public:
489 ClassFileParser(ClassFileStream* stream,
490 Symbol* name,
491 ClassLoaderData* loader_data,
492 const ClassLoadInfo* cl_info,
493 Publicity pub_level,
494 TRAPS);
495
496 ~ClassFileParser();
497
498 InstanceKlass* create_instance_klass(bool cf_changed_in_CFLH, const ClassInstanceInfo& cl_inst_info, TRAPS);
499
500 const ClassFileStream* clone_stream() const;
501
502 void set_klass_to_deallocate(InstanceKlass* klass);
503
504 int static_field_size() const;
505 int total_oop_map_count() const;
506 jint layout_size() const;
507
508 int vtable_size() const { return _vtable_size; }
509 int itable_size() const { return _itable_size; }
510
511 u2 this_class_index() const { return _this_class_index; }
512
513 bool is_hidden() const { return _is_hidden; }
514 bool is_interface() const { return _access_flags.is_interface(); }
515 bool is_abstract() const { return _access_flags.is_abstract(); }
516
517 // Returns true if the Klass to be generated will need to be addressable
518 // with a narrow Klass ID.
519 bool klass_needs_narrow_id() const;
520
521 ClassLoaderData* loader_data() const { return _loader_data; }
522 const Symbol* class_name() const { return _class_name; }
523 const InstanceKlass* super_klass() const { return _super_klass; }
524
525 ReferenceType super_reference_type() const;
526 bool is_instance_ref_klass() const;
527 bool is_java_lang_ref_Reference_subclass() const;
528
529 AccessFlags access_flags() const { return _access_flags; }
530
531 bool is_internal() const { return INTERNAL == _pub_level; }
532
533 static bool verify_unqualified_name(const char* name, unsigned int length, int type);
534
535 #ifdef ASSERT
536 static bool is_internal_format(Symbol* class_name);
537 #endif
538
539 };
540
541 #endif // SHARE_CLASSFILE_CLASSFILEPARSER_HPP
|
57 unsigned int _nonstatic_oop_map_count;
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 int _payload_alignment;
78 int _payload_offset;
79 int _payload_size_in_bytes;
80 int _non_atomic_size_in_bytes;
81 int _non_atomic_alignment;
82 int _atomic_layout_size_in_bytes;
83 int _nullable_layout_size_in_bytes;
84 int _null_marker_offset;
85 int _default_value_offset;
86 int _null_reset_value_offset;
87 bool _has_nonstatic_fields;
88 bool _is_naturally_atomic;
89 bool _must_be_atomic;
90 bool _has_inline_fields;
91 bool _is_empty_inline_klass;
92 };
93
94 // Parser for for .class files
95 //
96 // The bytes describing the class file structure is read from a Stream object
97
98 class ClassFileParser {
99 friend class FieldLayoutBuilder;
100 friend class FieldLayout;
101
102 class ClassAnnotationCollector;
103 class FieldAnnotationCollector;
104
105 public:
106 // The ClassFileParser has an associated "publicity" level
107 // It is used to control which subsystems (if any)
108 // will observe the parsing (logging, events, tracing).
109 // Default level is "BROADCAST", which is equivalent to
110 // a "public" parsing attempt.
111 //
126 const ClassFileStream* _stream; // Actual input stream
127 Symbol* _class_name;
128 mutable ClassLoaderData* _loader_data;
129 const bool _is_hidden;
130 const bool _can_access_vm_annotations;
131 int _orig_cp_size;
132 unsigned int _static_oop_count;
133
134 // Metadata created before the instance klass is created. Must be deallocated
135 // if not transferred to the InstanceKlass upon successful class loading
136 // in which case these pointers have been set to null.
137 const InstanceKlass* _super_klass;
138 ConstantPool* _cp;
139 Array<u1>* _fieldinfo_stream;
140 Array<FieldStatus>* _fields_status;
141 Array<Method*>* _methods;
142 Array<u2>* _inner_classes;
143 Array<u2>* _nest_members;
144 u2 _nest_host;
145 Array<u2>* _permitted_subclasses;
146 Array<u2>* _loadable_descriptors;
147 Array<RecordComponent*>* _record_components;
148 Array<InstanceKlass*>* _local_interfaces;
149 GrowableArray<u2>* _local_interface_indexes;
150 Array<InstanceKlass*>* _transitive_interfaces;
151 Annotations* _combined_annotations;
152 AnnotationArray* _class_annotations;
153 AnnotationArray* _class_type_annotations;
154 Array<AnnotationArray*>* _fields_annotations;
155 Array<AnnotationArray*>* _fields_type_annotations;
156 InstanceKlass* _klass; // InstanceKlass* once created.
157 InstanceKlass* _klass_to_deallocate; // an InstanceKlass* to be destroyed
158
159 ClassAnnotationCollector* _parsed_annotations;
160 FieldLayoutInfo* _layout_info;
161 Array<InlineLayoutInfo>* _inline_layout_info_array;
162 GrowableArray<FieldInfo>* _temp_field_info;
163 const intArray* _method_ordering;
164 GrowableArray<Method*>* _all_mirandas;
165
166 enum { fixed_buffer_size = 128 };
167 u_char _linenumbertable_buffer[fixed_buffer_size];
168
169 // Size of Java vtable (in words)
170 int _vtable_size;
171 int _itable_size;
172
173 int _num_miranda_methods;
174
175
176 Handle _protection_domain;
177 AccessFlags _access_flags;
178
179 // for tracing and notifications
180 Publicity _pub_level;
181
182 // Used to keep track of whether a constant pool item 19 or 20 is found. These
183 // correspond to CONSTANT_Module and CONSTANT_Package tags and are not allowed
184 // in regular class files. For class file version >= 53, a CFE cannot be thrown
185 // immediately when these are seen because a NCDFE must be thrown if the class's
186 // access_flags have ACC_MODULE set. But, the access_flags haven't been looked
187 // at yet. So, the bad constant pool item is cached here. A value of zero
188 // means that no constant pool item 19 or 20 was found.
189 short _bad_constant_seen;
190
191 // class attributes parsed before the instance klass is created:
192 bool _synthetic_flag;
193 int _sde_length;
194 const char* _sde_buffer;
195 u2 _sourcefile_index;
196 u2 _generic_signature_index;
197
198 u2 _major_version;
199 u2 _minor_version;
200 u2 _this_class_index;
201 u2 _super_class_index;
202 u2 _itfs_len;
203 u2 _java_fields_count;
204
205 bool _need_verify;
206
207 bool _has_nonstatic_concrete_methods;
208 bool _declares_nonstatic_concrete_methods;
209 bool _has_localvariable_table;
210 bool _has_final_method;
211 bool _has_contended_fields;
212
213 bool _has_inline_type_fields;
214 bool _is_naturally_atomic;
215 bool _must_be_atomic;
216 bool _is_implicitly_constructible;
217 bool _has_loosely_consistent_annotation;
218 bool _has_implicitly_constructible_annotation;
219
220 // precomputed flags
221 bool _has_finalizer;
222 bool _has_empty_finalizer;
223 int _max_bootstrap_specifier_index; // detects BSS values
224
225 void parse_stream(const ClassFileStream* const stream, TRAPS);
226
227 void mangle_hidden_class_name(InstanceKlass* const ik);
228
229 void post_process_parsed_stream(const ClassFileStream* const stream,
230 ConstantPool* cp,
231 TRAPS);
232
233 void fill_instance_klass(InstanceKlass* ik, bool cf_changed_in_CFLH,
234 const ClassInstanceInfo& cl_inst_info, TRAPS);
235
236 void set_klass(InstanceKlass* instance);
237
238 void set_class_bad_constant_seen(short bad_constant);
239 short class_bad_constant_seen() { return _bad_constant_seen; }
265 bool* has_nonstatic_concrete_methods,
266 TRAPS);
267
268 const InstanceKlass* parse_super_class(ConstantPool* const cp,
269 const int super_class_index,
270 const bool need_verify,
271 TRAPS);
272
273 // Field parsing
274 void parse_field_attributes(const ClassFileStream* const cfs,
275 u2 attributes_count,
276 bool is_static,
277 u2 signature_index,
278 u2* const constantvalue_index_addr,
279 bool* const is_synthetic_addr,
280 u2* const generic_signature_index_addr,
281 FieldAnnotationCollector* parsed_annotations,
282 TRAPS);
283
284 void parse_fields(const ClassFileStream* const cfs,
285 AccessFlags class_access_flags,
286 ConstantPool* cp,
287 const int cp_size,
288 u2* const java_fields_count_ptr,
289 TRAPS);
290
291 // Method parsing
292 Method* parse_method(const ClassFileStream* const cfs,
293 bool is_interface,
294 bool is_value_class,
295 bool is_abstract_class,
296 const ConstantPool* cp,
297 bool* const has_localvariable_table,
298 TRAPS);
299
300 void parse_methods(const ClassFileStream* const cfs,
301 bool is_interface,
302 bool is_value_class,
303 bool is_abstract_class,
304 bool* const has_localvariable_table,
305 bool* const has_final_method,
306 bool* const declares_nonstatic_concrete_methods,
307 TRAPS);
308
309 const unsafe_u2* parse_exception_table(const ClassFileStream* const stream,
310 u4 code_length,
311 u4 exception_table_length,
312 TRAPS);
313
314 void parse_linenumber_table(u4 code_attribute_length,
315 u4 code_length,
316 CompressedLineNumberWriteStream**const write_stream,
317 TRAPS);
318
319 const unsafe_u2* parse_localvariable_table(const ClassFileStream* const cfs,
320 u4 code_length,
321 u2 max_locals,
322 u4 code_attribute_length,
323 u2* const localvariable_table_length,
338
339 // Check for circularity in InnerClasses attribute.
340 bool check_inner_classes_circularity(const ConstantPool* cp, int length, TRAPS);
341
342 u2 parse_classfile_inner_classes_attribute(const ClassFileStream* const cfs,
343 const ConstantPool* cp,
344 const u1* const inner_classes_attribute_start,
345 bool parsed_enclosingmethod_attribute,
346 u2 enclosing_method_class_index,
347 u2 enclosing_method_method_index,
348 TRAPS);
349
350 u2 parse_classfile_nest_members_attribute(const ClassFileStream* const cfs,
351 const u1* const nest_members_attribute_start,
352 TRAPS);
353
354 u2 parse_classfile_permitted_subclasses_attribute(const ClassFileStream* const cfs,
355 const u1* const permitted_subclasses_attribute_start,
356 TRAPS);
357
358 u2 parse_classfile_loadable_descriptors_attribute(const ClassFileStream* const cfs,
359 const u1* const loadable_descriptors_attribute_start,
360 TRAPS);
361
362 u4 parse_classfile_record_attribute(const ClassFileStream* const cfs,
363 const ConstantPool* cp,
364 const u1* const record_attribute_start,
365 TRAPS);
366
367 void parse_classfile_attributes(const ClassFileStream* const cfs,
368 ConstantPool* cp,
369 ClassAnnotationCollector* parsed_annotations,
370 TRAPS);
371
372 void parse_classfile_synthetic_attribute();
373 void parse_classfile_signature_attribute(const ClassFileStream* const cfs, TRAPS);
374 void parse_classfile_bootstrap_methods_attribute(const ClassFileStream* const cfs,
375 ConstantPool* cp,
376 u4 attribute_length,
377 TRAPS);
378
379 // Annotations handling
380 AnnotationArray* allocate_annotations(const u1* const anno,
381 int anno_length,
434 const char *name,
435 TRAPS) const {
436 if (!b) { classfile_parse_error(msg, index, name, THREAD); return; }
437 }
438
439 void throwIllegalSignature(const char* type,
440 const Symbol* name,
441 const Symbol* sig,
442 TRAPS) const;
443
444 void verify_constantvalue(const ConstantPool* const cp,
445 int constantvalue_index,
446 int signature_index,
447 TRAPS) const;
448
449 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) const;
450 void verify_legal_class_name(const Symbol* name, TRAPS) const;
451 void verify_legal_field_name(const Symbol* name, TRAPS) const;
452 void verify_legal_method_name(const Symbol* name, TRAPS) const;
453
454 bool legal_field_signature(const Symbol* signature, TRAPS) const;
455
456 void verify_legal_field_signature(const Symbol* fieldname,
457 const Symbol* signature,
458 TRAPS) const;
459 int verify_legal_method_signature(const Symbol* methodname,
460 const Symbol* signature,
461 TRAPS) const;
462 void verify_legal_name_with_signature(const Symbol* name,
463 const Symbol* signature,
464 TRAPS) const;
465
466 void verify_class_version(u2 major, u2 minor, Symbol* class_name, TRAPS);
467
468 void verify_legal_class_modifiers(jint flags, const char* name, bool is_Object, TRAPS) const;
469 void verify_legal_field_modifiers(jint flags,
470 AccessFlags class_access_flags,
471 TRAPS) const;
472 void verify_legal_method_modifiers(jint flags,
473 AccessFlags class_access_flags,
474 const Symbol* name,
475 TRAPS) const;
476
477 void check_super_class_access(const InstanceKlass* this_klass,
478 TRAPS);
479
480 void check_super_interface_access(const InstanceKlass* this_klass,
481 TRAPS);
482
483 const char* skip_over_field_signature(const char* signature,
484 bool void_ok,
485 unsigned int length,
486 TRAPS) const;
487
488 // Wrapper for constantTag.is_klass_[or_]reference.
489 // In older versions of the VM, Klass*s cannot sneak into early phases of
490 // constant pool construction, but in later versions they can.
491 // %%% Let's phase out the old is_klass_reference.
492 bool valid_klass_reference_at(int index) const {
493 return _cp->is_within_bounds(index) &&
505 u2* const localvariable_table_length,
506 const unsafe_u2** const localvariable_table_start,
507 int lvtt_cnt,
508 u2* const localvariable_type_table_length,
509 const unsafe_u2** const localvariable_type_table_start,
510 TRAPS);
511
512 void copy_method_annotations(ConstMethod* cm,
513 const u1* runtime_visible_annotations,
514 int runtime_visible_annotations_length,
515 const u1* runtime_visible_parameter_annotations,
516 int runtime_visible_parameter_annotations_length,
517 const u1* runtime_visible_type_annotations,
518 int runtime_visible_type_annotations_length,
519 const u1* annotation_default,
520 int annotation_default_length,
521 TRAPS);
522
523 void update_class_name(Symbol* new_name);
524
525 // Check if the class file supports inline types
526 bool supports_inline_types() const;
527
528 public:
529 ClassFileParser(ClassFileStream* stream,
530 Symbol* name,
531 ClassLoaderData* loader_data,
532 const ClassLoadInfo* cl_info,
533 Publicity pub_level,
534 TRAPS);
535
536 ~ClassFileParser();
537
538 InstanceKlass* create_instance_klass(bool cf_changed_in_CFLH, const ClassInstanceInfo& cl_inst_info, TRAPS);
539
540 const ClassFileStream* clone_stream() const;
541
542 void set_klass_to_deallocate(InstanceKlass* klass);
543
544 int static_field_size() const;
545 int total_oop_map_count() const;
546 jint layout_size() const;
547
548 int vtable_size() const { return _vtable_size; }
549 int itable_size() const { return _itable_size; }
550
551 u2 this_class_index() const { return _this_class_index; }
552
553 bool is_hidden() const { return _is_hidden; }
554 bool is_interface() const { return _access_flags.is_interface(); }
555 // Being an inline type means being a concrete value class
556 bool is_inline_type() const { return !_access_flags.is_identity_class() && !_access_flags.is_interface() && !_access_flags.is_abstract(); }
557 bool is_abstract_class() const { return _access_flags.is_abstract(); }
558 bool is_identity_class() const { return _access_flags.is_identity_class(); }
559 bool has_inline_fields() const { return _has_inline_type_fields; }
560
561 u2 java_fields_count() const { return _java_fields_count; }
562 bool is_abstract() const { return _access_flags.is_abstract(); }
563
564 // Returns true if the Klass to be generated will need to be addressable
565 // with a narrow Klass ID.
566 bool klass_needs_narrow_id() const;
567
568 ClassLoaderData* loader_data() const { return _loader_data; }
569 const Symbol* class_name() const { return _class_name; }
570 const InstanceKlass* super_klass() const { return _super_klass; }
571
572 ReferenceType super_reference_type() const;
573 bool is_instance_ref_klass() const;
574 bool is_java_lang_ref_Reference_subclass() const;
575
576 AccessFlags access_flags() const { return _access_flags; }
577
578 bool is_internal() const { return INTERNAL == _pub_level; }
579
580 bool is_class_in_loadable_descriptors_attribute(Symbol *klass);
581
582 static bool verify_unqualified_name(const char* name, unsigned int length, int type);
583
584 #ifdef ASSERT
585 static bool is_internal_format(Symbol* class_name);
586 #endif
587
588 };
589
590 #endif // SHARE_CLASSFILE_CLASSFILEPARSER_HPP
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