153 Klass* volatile _array_klasses;
154 // Constant pool for this class.
155 ConstantPool* _constants;
156 // The InnerClasses attribute and EnclosingMethod attribute. The
157 // _inner_classes is an array of shorts. If the class has InnerClasses
158 // attribute, then the _inner_classes array begins with 4-tuples of shorts
159 // [inner_class_info_index, outer_class_info_index,
160 // inner_name_index, inner_class_access_flags] for the InnerClasses
161 // attribute. If the EnclosingMethod attribute exists, it occupies the
162 // last two shorts [class_index, method_index] of the array. If only
163 // the InnerClasses attribute exists, the _inner_classes array length is
164 // number_of_inner_classes * 4. If the class has both InnerClasses
165 // and EnclosingMethod attributes the _inner_classes array length is
166 // number_of_inner_classes * 4 + enclosing_method_attribute_size.
167 Array<jushort>* _inner_classes;
168
169 // The NestMembers attribute. An array of shorts, where each is a
170 // class info index for the class that is a nest member
171 Array<jushort>* _nest_members;
172
173 // The MemberOfNest attribute. The class info index for the class
174 // that is the nest-top of this class
175 jushort _nest_top_index;
176
177 // Resolved nest-top klass: either true nest-top or self if we are not nested.
178 // By always being set it makes nest-member access checks simpler.
179 InstanceKlass* _nest_top;
180
181 // the source debug extension for this klass, NULL if not specified.
182 // Specified as UTF-8 string without terminating zero byte in the classfile,
183 // it is stored in the instanceklass as a NULL-terminated UTF-8 string
184 const char* _source_debug_extension;
185 // Array name derived from this class which needs unreferencing
186 // if this class is unloaded.
187 Symbol* _array_name;
188
189 // Number of heapOopSize words used by non-static fields in this klass
190 // (including inherited fields but after header_size()).
191 int _nonstatic_field_size;
192 int _static_field_size; // number words used by static fields (oop and non-oop) in this klass
193 // Constant pool index to the utf8 entry of the Generic signature,
194 // or 0 if none.
195 u2 _generic_signature_index;
196 // Constant pool index to the utf8 entry for the name of source file
197 // containing this klass, 0 if not specified.
198 u2 _source_file_name_index;
199 u2 _static_oop_field_count;// number of static oop fields in this klass
430 Symbol* field_signature (int index) const { return field(index)->signature(constants()); }
431
432 // Number of Java declared fields
433 int java_fields_count() const { return (int)_java_fields_count; }
434
435 Array<u2>* fields() const { return _fields; }
436 void set_fields(Array<u2>* f, u2 java_fields_count) {
437 guarantee(_fields == NULL || f == NULL, "Just checking");
438 _fields = f;
439 _java_fields_count = java_fields_count;
440 }
441
442 // inner classes
443 Array<u2>* inner_classes() const { return _inner_classes; }
444 void set_inner_classes(Array<u2>* f) { _inner_classes = f; }
445
446 // nest members
447 Array<u2>* nest_members() const { return _nest_members; }
448 void set_nest_members(Array<u2>* m) { _nest_members = m; }
449
450 // nest-top index
451 jushort nest_top_index() const { return _nest_top_index; }
452 void set_nest_top_index(u2 i) { _nest_top_index = i; }
453
454 // Returns nest-top class, resolving and validating it if needed
455 // Returns NULL if an exception occurs during loading, or validation fails
456 InstanceKlass* nest_top(TRAPS);
457 InstanceKlass* raw_nest_top() { return _nest_top; } // debugging
458
459 // Called to verify that k is a member of this nest - does not look at k's nest-top
460 bool has_nest_member(InstanceKlass* k, TRAPS) const;
461 // Check if this klass is a nestmate of k
462 bool has_nestmate_access_to(InstanceKlass* k, TRAPS);
463
464 enum InnerClassAttributeOffset {
465 // From http://mirror.eng/products/jdk/1.1/docs/guide/innerclasses/spec/innerclasses.doc10.html#18814
466 inner_class_inner_class_info_offset = 0,
467 inner_class_outer_class_info_offset = 1,
468 inner_class_inner_name_offset = 2,
469 inner_class_access_flags_offset = 3,
470 inner_class_next_offset = 4
471 };
472
473 enum EnclosingMethodAttributeOffset {
474 enclosing_method_class_index_offset = 0,
475 enclosing_method_method_index_offset = 1,
476 enclosing_method_attribute_size = 2
477 };
478
479 // method override check
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153 Klass* volatile _array_klasses;
154 // Constant pool for this class.
155 ConstantPool* _constants;
156 // The InnerClasses attribute and EnclosingMethod attribute. The
157 // _inner_classes is an array of shorts. If the class has InnerClasses
158 // attribute, then the _inner_classes array begins with 4-tuples of shorts
159 // [inner_class_info_index, outer_class_info_index,
160 // inner_name_index, inner_class_access_flags] for the InnerClasses
161 // attribute. If the EnclosingMethod attribute exists, it occupies the
162 // last two shorts [class_index, method_index] of the array. If only
163 // the InnerClasses attribute exists, the _inner_classes array length is
164 // number_of_inner_classes * 4. If the class has both InnerClasses
165 // and EnclosingMethod attributes the _inner_classes array length is
166 // number_of_inner_classes * 4 + enclosing_method_attribute_size.
167 Array<jushort>* _inner_classes;
168
169 // The NestMembers attribute. An array of shorts, where each is a
170 // class info index for the class that is a nest member
171 Array<jushort>* _nest_members;
172
173 // The NestHost attribute. The class info index for the class
174 // that is the nest-host of this class
175 jushort _nest_host_index;
176
177 // Resolved nest-host klass: either true nest-host or self if we are not nested.
178 // By always being set it makes nest-member access checks simpler.
179 InstanceKlass* _nest_host;
180
181 // the source debug extension for this klass, NULL if not specified.
182 // Specified as UTF-8 string without terminating zero byte in the classfile,
183 // it is stored in the instanceklass as a NULL-terminated UTF-8 string
184 const char* _source_debug_extension;
185 // Array name derived from this class which needs unreferencing
186 // if this class is unloaded.
187 Symbol* _array_name;
188
189 // Number of heapOopSize words used by non-static fields in this klass
190 // (including inherited fields but after header_size()).
191 int _nonstatic_field_size;
192 int _static_field_size; // number words used by static fields (oop and non-oop) in this klass
193 // Constant pool index to the utf8 entry of the Generic signature,
194 // or 0 if none.
195 u2 _generic_signature_index;
196 // Constant pool index to the utf8 entry for the name of source file
197 // containing this klass, 0 if not specified.
198 u2 _source_file_name_index;
199 u2 _static_oop_field_count;// number of static oop fields in this klass
430 Symbol* field_signature (int index) const { return field(index)->signature(constants()); }
431
432 // Number of Java declared fields
433 int java_fields_count() const { return (int)_java_fields_count; }
434
435 Array<u2>* fields() const { return _fields; }
436 void set_fields(Array<u2>* f, u2 java_fields_count) {
437 guarantee(_fields == NULL || f == NULL, "Just checking");
438 _fields = f;
439 _java_fields_count = java_fields_count;
440 }
441
442 // inner classes
443 Array<u2>* inner_classes() const { return _inner_classes; }
444 void set_inner_classes(Array<u2>* f) { _inner_classes = f; }
445
446 // nest members
447 Array<u2>* nest_members() const { return _nest_members; }
448 void set_nest_members(Array<u2>* m) { _nest_members = m; }
449
450 // nest-host index
451 jushort nest_host_index() const { return _nest_host_index; }
452 void set_nest_host_index(u2 i) { _nest_host_index = i; }
453
454 // Returns nest-host class, resolving and validating it if needed
455 // Returns NULL if an exception occurs during loading, or validation fails
456 InstanceKlass* nest_host(TRAPS);
457 InstanceKlass* raw_nest_host() { return _nest_host; } // debugging
458
459 // Called to verify that k is a member of this nest - does not look at k's nest-host
460 bool has_nest_member(InstanceKlass* k, TRAPS) const;
461 // Check if this klass is a nestmate of k
462 bool has_nestmate_access_to(InstanceKlass* k, TRAPS);
463
464 enum InnerClassAttributeOffset {
465 // From http://mirror.eng/products/jdk/1.1/docs/guide/innerclasses/spec/innerclasses.doc10.html#18814
466 inner_class_inner_class_info_offset = 0,
467 inner_class_outer_class_info_offset = 1,
468 inner_class_inner_name_offset = 2,
469 inner_class_access_flags_offset = 3,
470 inner_class_next_offset = 4
471 };
472
473 enum EnclosingMethodAttributeOffset {
474 enclosing_method_class_index_offset = 0,
475 enclosing_method_method_index_offset = 1,
476 enclosing_method_attribute_size = 2
477 };
478
479 // method override check
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