51 jobject _loader;
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
63 ciFlags _flags;
64
65 // Lazy fields get filled in only upon request.
66 ciInstanceKlass* _super;
67 ciInstance* _java_mirror;
68
69 ciConstantPoolCache* _field_cache; // cached map index->field
70 GrowableArray<ciField*>* _nonstatic_fields;
71 int _has_injected_fields; // any non static injected fields? lazily initialized.
72
73 // The possible values of the _implementor fall into following three cases:
74 // NULL: no implementor.
75 // A ciInstanceKlass that's not itself: one implementor.
76 // Itself: more than one implementor.
77 ciInstanceKlass* _implementor;
78
79 void compute_injected_fields();
80 bool compute_injected_fields_helper();
81
82 protected:
83 ciInstanceKlass(Klass* k);
84 ciInstanceKlass(ciSymbol* name, jobject loader, jobject protection_domain);
85
86 InstanceKlass* get_instanceKlass() const {
87 return InstanceKlass::cast(get_Klass());
88 }
89
90 oop loader();
91 jobject loader_handle();
92
93 oop protection_domain();
94 jobject protection_domain_handle();
95
96 const char* type_string() { return "ciInstanceKlass"; }
97
98 bool is_in_package_impl(const char* packagename, int len);
99
100 void print_impl(outputStream* st);
101
102 ciConstantPoolCache* field_cache();
103
104 bool is_shared() { return _is_shared; }
105
106 void compute_shared_init_state();
107 bool compute_shared_has_subklass();
108 int compute_nonstatic_fields();
109 GrowableArray<ciField*>* compute_nonstatic_fields_impl(GrowableArray<ciField*>* super_fields);
110
111 // Update the init_state for shared klasses
112 void update_if_shared(InstanceKlass::ClassState expected) {
113 if (_is_shared && _init_state != expected) {
114 if (is_loaded()) compute_shared_init_state();
115 }
116 }
117
118 public:
119 // Has this klass been initialized?
120 bool is_initialized() {
121 update_if_shared(InstanceKlass::fully_initialized);
122 return _init_state == InstanceKlass::fully_initialized;
123 }
124 bool is_not_initialized() {
125 update_if_shared(InstanceKlass::fully_initialized);
126 return _init_state < InstanceKlass::being_initialized;
127 }
128 // Is this klass being initialized?
129 bool is_being_initialized() {
186 } else {
187 return 2;
188 }
189 }
190 bool has_nonstatic_concrete_methods() {
191 assert(is_loaded(), "must be loaded");
192 return _has_nonstatic_concrete_methods;
193 }
194
195 bool is_hidden() const {
196 return _is_hidden;
197 }
198
199 bool is_record() const {
200 return _is_record;
201 }
202
203 ciInstanceKlass* get_canonical_holder(int offset);
204 ciField* get_field_by_offset(int field_offset, bool is_static);
205 ciField* get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static);
206
207 // total number of nonstatic fields (including inherited):
208 int nof_nonstatic_fields() {
209 if (_nonstatic_fields == NULL)
210 return compute_nonstatic_fields();
211 else
212 return _nonstatic_fields->length();
213 }
214
215 bool has_injected_fields() {
216 if (_has_injected_fields == -1) {
217 compute_injected_fields();
218 }
219 return _has_injected_fields > 0 ? true : false;
220 }
221
222 bool has_object_fields() const;
223
224 // nth nonstatic field (presented by ascending address)
225 ciField* nonstatic_field_at(int i) {
226 assert(_nonstatic_fields != NULL, "");
227 return _nonstatic_fields->at(i);
228 }
229
230 ciInstanceKlass* unique_concrete_subklass();
231 bool has_finalizable_subclass();
232
240 // Java access flags
241 bool is_public () { return flags().is_public(); }
242 bool is_final () { return flags().is_final(); }
243 bool is_super () { return flags().is_super(); }
244 bool is_interface () { return flags().is_interface(); }
245 bool is_abstract () { return flags().is_abstract(); }
246
247 ciMethod* find_method(ciSymbol* name, ciSymbol* signature);
248 // Note: To find a method from name and type strings, use ciSymbol::make,
249 // but consider adding to vmSymbols.hpp instead.
250
251 bool is_leaf_type();
252 ciInstanceKlass* implementor();
253
254 ciInstanceKlass* unique_implementor() {
255 assert(is_loaded(), "must be loaded");
256 ciInstanceKlass* impl = implementor();
257 return (impl != this ? impl : NULL);
258 }
259
260 // Is the defining class loader of this class the default loader?
261 bool uses_default_loader() const;
262
263 bool is_java_lang_Object() const;
264
265 BasicType box_klass_type() const;
266 bool is_box_klass() const;
267 bool is_boxed_value_offset(int offset) const;
268 bool is_box_cache_valid() const;
269
270 // Is this klass in the given package?
271 bool is_in_package(const char* packagename) {
272 return is_in_package(packagename, (int) strlen(packagename));
273 }
274 bool is_in_package(const char* packagename, int len);
275
276 // What kind of ciObject is this?
277 bool is_instance_klass() const { return true; }
278
279 virtual ciKlass* exact_klass() {
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51 jobject _loader;
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
63 ciFlags _flags;
64
65 // Lazy fields get filled in only upon request.
66 ciInstanceKlass* _super;
67 ciInstance* _java_mirror;
68
69 ciConstantPoolCache* _field_cache; // cached map index->field
70 GrowableArray<ciField*>* _nonstatic_fields;
71
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
80 void compute_injected_fields();
81 bool compute_injected_fields_helper();
82
83 protected:
84 ciInstanceKlass(Klass* k);
85 ciInstanceKlass(ciSymbol* name, jobject loader, jobject protection_domain, BasicType bt = T_OBJECT); // for unloaded klasses
86
87 InstanceKlass* get_instanceKlass() const {
88 return InstanceKlass::cast(get_Klass());
89 }
90
91 oop loader();
92 jobject loader_handle();
93
94 oop protection_domain();
95 jobject protection_domain_handle();
96
97 const char* type_string() { return "ciInstanceKlass"; }
98
99 bool is_in_package_impl(const char* packagename, int len);
100
101 void print_impl(outputStream* st);
102
103 ciConstantPoolCache* field_cache();
104
105 bool is_shared() { return _is_shared; }
106
107 void compute_shared_init_state();
108 bool compute_shared_has_subklass();
109 virtual int compute_nonstatic_fields();
110 GrowableArray<ciField*>* compute_nonstatic_fields_impl(GrowableArray<ciField*>* super_fields, bool flatten = true);
111
112 // Update the init_state for shared klasses
113 void update_if_shared(InstanceKlass::ClassState expected) {
114 if (_is_shared && _init_state != expected) {
115 if (is_loaded()) compute_shared_init_state();
116 }
117 }
118
119 public:
120 // Has this klass been initialized?
121 bool is_initialized() {
122 update_if_shared(InstanceKlass::fully_initialized);
123 return _init_state == InstanceKlass::fully_initialized;
124 }
125 bool is_not_initialized() {
126 update_if_shared(InstanceKlass::fully_initialized);
127 return _init_state < InstanceKlass::being_initialized;
128 }
129 // Is this klass being initialized?
130 bool is_being_initialized() {
187 } else {
188 return 2;
189 }
190 }
191 bool has_nonstatic_concrete_methods() {
192 assert(is_loaded(), "must be loaded");
193 return _has_nonstatic_concrete_methods;
194 }
195
196 bool is_hidden() const {
197 return _is_hidden;
198 }
199
200 bool is_record() const {
201 return _is_record;
202 }
203
204 ciInstanceKlass* get_canonical_holder(int offset);
205 ciField* get_field_by_offset(int field_offset, bool is_static);
206 ciField* get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static);
207 // get field descriptor at field_offset ignoring flattening
208 ciField* get_non_flattened_field_by_offset(int field_offset);
209
210 // total number of nonstatic fields (including inherited):
211 int nof_nonstatic_fields() {
212 if (_nonstatic_fields == NULL) {
213 return compute_nonstatic_fields();
214 } else {
215 return _nonstatic_fields->length();
216 }
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 != NULL, "");
231 return _nonstatic_fields->at(i);
232 }
233
234 ciInstanceKlass* unique_concrete_subklass();
235 bool has_finalizable_subclass();
236
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 : NULL);
262 }
263
264 virtual bool can_be_inline_klass(bool is_exact = false);
265
266 // Is the defining class loader of this class the default loader?
267 bool uses_default_loader() const;
268
269 bool is_java_lang_Object() const;
270
271 BasicType box_klass_type() const;
272 bool is_box_klass() const;
273 bool is_boxed_value_offset(int offset) const;
274 bool is_box_cache_valid() const;
275
276 // Is this klass in the given package?
277 bool is_in_package(const char* packagename) {
278 return is_in_package(packagename, (int) strlen(packagename));
279 }
280 bool is_in_package(const char* packagename, int len);
281
282 // What kind of ciObject is this?
283 bool is_instance_klass() const { return true; }
284
285 virtual ciKlass* exact_klass() {
|