52 jobject _protection_domain;
53
54 InstanceKlass::ClassState _init_state; // state of class
55 bool _is_shared;
56 bool _has_finalizer;
57 SubklassValue _has_subklass;
58 bool _has_nonstatic_fields;
59 bool _has_nonstatic_concrete_methods;
60 bool _is_hidden;
61 bool _is_record;
62 bool _has_trusted_loader;
63
64 ciFlags _flags;
65
66 // Lazy fields get filled in only upon request.
67 ciInstanceKlass* _super;
68 ciInstance* _java_mirror;
69
70 ciConstantPoolCache* _field_cache; // cached map index->field
71 GrowableArray<ciField*>* _nonstatic_fields;
72 int _has_injected_fields; // any non static injected fields? lazily initialized.
73
74 // The possible values of the _implementor fall into following three cases:
75 // null: no implementor.
76 // A ciInstanceKlass that's not itself: one implementor.
77 // Itself: more than one implementor.
78 ciInstanceKlass* _implementor;
79 GrowableArray<ciInstanceKlass*>* _transitive_interfaces;
80
81 void compute_injected_fields();
82 bool compute_injected_fields_helper();
83 void compute_transitive_interfaces();
84
85 protected:
86 ciInstanceKlass(Klass* k);
87 ciInstanceKlass(ciSymbol* name, jobject loader, jobject protection_domain);
88
89 InstanceKlass* get_instanceKlass() const {
90 return InstanceKlass::cast(get_Klass());
91 }
92
93 oop loader();
94 jobject loader_handle();
95
96 oop protection_domain();
97 jobject protection_domain_handle();
98
99 const char* type_string() { return "ciInstanceKlass"; }
100
101 bool is_in_package_impl(const char* packagename, int len);
102
103 void print_impl(outputStream* st);
104
105 ciConstantPoolCache* field_cache();
106
107 bool is_shared() { return _is_shared; }
108
109 void compute_shared_init_state();
110 bool compute_shared_has_subklass();
111 int compute_nonstatic_fields();
112 GrowableArray<ciField*>* compute_nonstatic_fields_impl(GrowableArray<ciField*>* super_fields);
113 bool compute_has_trusted_loader();
114
115 // Update the init_state for shared klasses
116 void update_if_shared(InstanceKlass::ClassState expected) {
117 if (_is_shared && _init_state != expected) {
118 if (is_loaded()) compute_shared_init_state();
119 }
120 }
121
122 public:
123 // Has this klass been initialized?
124 bool is_initialized() {
125 update_if_shared(InstanceKlass::fully_initialized);
126 return _init_state == InstanceKlass::fully_initialized;
127 }
128 bool is_not_initialized() {
129 update_if_shared(InstanceKlass::fully_initialized);
130 return _init_state < InstanceKlass::being_initialized;
131 }
132 // Is this klass being initialized?
190 } else {
191 return 2;
192 }
193 }
194 bool has_nonstatic_concrete_methods() {
195 assert(is_loaded(), "must be loaded");
196 return _has_nonstatic_concrete_methods;
197 }
198
199 bool is_hidden() const {
200 return _is_hidden;
201 }
202
203 bool is_record() const {
204 return _is_record;
205 }
206
207 ciInstanceKlass* get_canonical_holder(int offset);
208 ciField* get_field_by_offset(int field_offset, bool is_static);
209 ciField* get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static);
210
211 // total number of nonstatic fields (including inherited):
212 int nof_nonstatic_fields() {
213 if (_nonstatic_fields == nullptr)
214 return compute_nonstatic_fields();
215 else
216 return _nonstatic_fields->length();
217 }
218
219 bool has_injected_fields() {
220 if (_has_injected_fields == -1) {
221 compute_injected_fields();
222 }
223 return _has_injected_fields > 0 ? true : false;
224 }
225
226 bool has_object_fields() const;
227
228 // nth nonstatic field (presented by ascending address)
229 ciField* nonstatic_field_at(int i) {
230 assert(_nonstatic_fields != nullptr, "");
231 return _nonstatic_fields->at(i);
232 }
233
234 ciInstanceKlass* unique_concrete_subklass();
235 bool has_finalizable_subclass();
236
237 bool contains_field_offset(int offset);
238
239 // Get the instance of java.lang.Class corresponding to
240 // this klass. This instance is used for locking of
241 // synchronized static methods of this klass.
242 ciInstance* java_mirror();
243
244 // Java access flags
245 bool is_public () { return flags().is_public(); }
246 bool is_final () { return flags().is_final(); }
247 bool is_super () { return flags().is_super(); }
248 bool is_interface () { return flags().is_interface(); }
249 bool is_abstract () { return flags().is_abstract(); }
250
251 ciMethod* find_method(ciSymbol* name, ciSymbol* signature);
252 // Note: To find a method from name and type strings, use ciSymbol::make,
253 // but consider adding to vmSymbols.hpp instead.
254
255 bool is_leaf_type();
256 ciInstanceKlass* implementor();
257
258 ciInstanceKlass* unique_implementor() {
259 assert(is_loaded(), "must be loaded");
260 ciInstanceKlass* impl = implementor();
261 return (impl != this ? impl : nullptr);
262 }
263
264 // Is the defining class loader of this class the default loader?
265 bool uses_default_loader() const;
266
267 bool is_java_lang_Object() const;
268
269 BasicType box_klass_type() const;
270 bool is_box_klass() const;
271 bool is_boxed_value_offset(int offset) const;
272
273 // Is this klass in the given package?
274 bool is_in_package(const char* packagename) {
275 return is_in_package(packagename, (int) strlen(packagename));
276 }
277 bool is_in_package(const char* packagename, int len);
278
279 // What kind of ciObject is this?
280 bool is_instance_klass() const { return true; }
281
282 virtual ciKlass* exact_klass() {
283 if (is_loaded() && is_final() && !is_interface()) {
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52 jobject _protection_domain;
53
54 InstanceKlass::ClassState _init_state; // state of class
55 bool _is_shared;
56 bool _has_finalizer;
57 SubklassValue _has_subklass;
58 bool _has_nonstatic_fields;
59 bool _has_nonstatic_concrete_methods;
60 bool _is_hidden;
61 bool _is_record;
62 bool _has_trusted_loader;
63
64 ciFlags _flags;
65
66 // Lazy fields get filled in only upon request.
67 ciInstanceKlass* _super;
68 ciInstance* _java_mirror;
69
70 ciConstantPoolCache* _field_cache; // cached map index->field
71 GrowableArray<ciField*>* _nonstatic_fields;
72
73 int _has_injected_fields; // any non static injected fields? lazily initialized.
74
75 // The possible values of the _implementor fall into following three cases:
76 // null: no implementor.
77 // A ciInstanceKlass that's not itself: one implementor.
78 // Itself: more than one implementor.
79 ciInstanceKlass* _implementor;
80 GrowableArray<ciInstanceKlass*>* _transitive_interfaces;
81
82 void compute_injected_fields();
83 bool compute_injected_fields_helper();
84 void compute_transitive_interfaces();
85
86 protected:
87 ciInstanceKlass(Klass* k);
88 ciInstanceKlass(ciSymbol* name, jobject loader, jobject protection_domain, BasicType bt = T_OBJECT); // for unloaded klasses
89
90 InstanceKlass* get_instanceKlass() const {
91 return InstanceKlass::cast(get_Klass());
92 }
93
94 oop loader();
95 jobject loader_handle();
96
97 oop protection_domain();
98 jobject protection_domain_handle();
99
100 const char* type_string() { return "ciInstanceKlass"; }
101
102 bool is_in_package_impl(const char* packagename, int len);
103
104 void print_impl(outputStream* st);
105
106 ciConstantPoolCache* field_cache();
107
108 bool is_shared() { return _is_shared; }
109
110 void compute_shared_init_state();
111 bool compute_shared_has_subklass();
112 virtual int compute_nonstatic_fields();
113 GrowableArray<ciField*>* compute_nonstatic_fields_impl(GrowableArray<ciField*>* super_fields, bool flatten = true);
114 bool compute_has_trusted_loader();
115
116 // Update the init_state for shared klasses
117 void update_if_shared(InstanceKlass::ClassState expected) {
118 if (_is_shared && _init_state != expected) {
119 if (is_loaded()) compute_shared_init_state();
120 }
121 }
122
123 public:
124 // Has this klass been initialized?
125 bool is_initialized() {
126 update_if_shared(InstanceKlass::fully_initialized);
127 return _init_state == InstanceKlass::fully_initialized;
128 }
129 bool is_not_initialized() {
130 update_if_shared(InstanceKlass::fully_initialized);
131 return _init_state < InstanceKlass::being_initialized;
132 }
133 // Is this klass being initialized?
191 } else {
192 return 2;
193 }
194 }
195 bool has_nonstatic_concrete_methods() {
196 assert(is_loaded(), "must be loaded");
197 return _has_nonstatic_concrete_methods;
198 }
199
200 bool is_hidden() const {
201 return _is_hidden;
202 }
203
204 bool is_record() const {
205 return _is_record;
206 }
207
208 ciInstanceKlass* get_canonical_holder(int offset);
209 ciField* get_field_by_offset(int field_offset, bool is_static);
210 ciField* get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static);
211 // get field descriptor at field_offset ignoring flattening
212 ciField* get_non_flat_field_by_offset(int field_offset);
213
214 // total number of nonstatic fields (including inherited):
215 int nof_nonstatic_fields() {
216 if (_nonstatic_fields == nullptr) {
217 return compute_nonstatic_fields();
218 } else {
219 return _nonstatic_fields->length();
220 }
221 }
222
223 bool has_injected_fields() {
224 if (_has_injected_fields == -1) {
225 compute_injected_fields();
226 }
227 return _has_injected_fields > 0 ? true : false;
228 }
229
230 bool has_object_fields() const;
231
232 // nth nonstatic field (presented by ascending address)
233 ciField* nonstatic_field_at(int i) {
234 assert(_nonstatic_fields != nullptr, "");
235 return _nonstatic_fields->at(i);
236 }
237
238 ciInstanceKlass* unique_concrete_subklass();
239 bool has_finalizable_subclass();
240
241 bool contains_field_offset(int offset);
242
243 // Get the instance of java.lang.Class corresponding to
244 // this klass. This instance is used for locking of
245 // synchronized static methods of this klass.
246 ciInstance* java_mirror();
247
248 // Java access flags
249 bool is_public () { return flags().is_public(); }
250 bool is_final () { return flags().is_final(); }
251 bool is_interface () { return flags().is_interface(); }
252 bool is_abstract () { return flags().is_abstract(); }
253
254 ciMethod* find_method(ciSymbol* name, ciSymbol* signature);
255 // Note: To find a method from name and type strings, use ciSymbol::make,
256 // but consider adding to vmSymbols.hpp instead.
257
258 bool is_leaf_type();
259 ciInstanceKlass* implementor();
260
261 ciInstanceKlass* unique_implementor() {
262 assert(is_loaded(), "must be loaded");
263 ciInstanceKlass* impl = implementor();
264 return (impl != this ? impl : nullptr);
265 }
266
267 virtual bool can_be_inline_klass(bool is_exact = false);
268
269 // Is the defining class loader of this class the default loader?
270 bool uses_default_loader() const;
271
272 bool is_java_lang_Object() const;
273
274 BasicType box_klass_type() const;
275 bool is_box_klass() const;
276 bool is_boxed_value_offset(int offset) const;
277
278 // Is this klass in the given package?
279 bool is_in_package(const char* packagename) {
280 return is_in_package(packagename, (int) strlen(packagename));
281 }
282 bool is_in_package(const char* packagename, int len);
283
284 // What kind of ciObject is this?
285 bool is_instance_klass() const { return true; }
286
287 virtual ciKlass* exact_klass() {
288 if (is_loaded() && is_final() && !is_interface()) {
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