268 }
269
270 inline bool java_lang_invoke_ResolvedMethodName::is_instance(oop obj) {
271 return obj != nullptr && obj->klass() == vmClasses::ResolvedMethodName_klass();
272 }
273
274 inline bool java_lang_invoke_MethodType::is_instance(oop obj) {
275 return obj != nullptr && obj->klass() == vmClasses::MethodType_klass();
276 }
277
278 inline bool java_lang_invoke_MethodHandle::is_instance(oop obj) {
279 return obj != nullptr && is_subclass(obj->klass());
280 }
281
282 inline bool java_lang_Class::is_instance(oop obj) {
283 return obj != nullptr && obj->klass() == vmClasses::Class_klass();
284 }
285
286 inline Klass* java_lang_Class::as_Klass(oop java_class) {
287 //%note memory_2
288 assert(java_lang_Class::is_instance(java_class), "must be a Class object");
289 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset));
290 assert(k == nullptr || k->is_klass(), "type check");
291 return k;
292 }
293
294 inline bool java_lang_Class::is_primitive(oop java_class) {
295 // should assert:
296 //assert(java_lang_Class::is_instance(java_class), "must be a Class object");
297 bool is_primitive = (java_class->metadata_field(_klass_offset) == nullptr);
298
299 #ifdef ASSERT
300 if (is_primitive) {
301 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
302 assert(k == nullptr || is_java_primitive(ArrayKlass::cast(k)->element_type()),
303 "Should be either the T_VOID primitive or a java primitive");
304 }
305 #endif
306
307 return is_primitive;
308 }
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268 }
269
270 inline bool java_lang_invoke_ResolvedMethodName::is_instance(oop obj) {
271 return obj != nullptr && obj->klass() == vmClasses::ResolvedMethodName_klass();
272 }
273
274 inline bool java_lang_invoke_MethodType::is_instance(oop obj) {
275 return obj != nullptr && obj->klass() == vmClasses::MethodType_klass();
276 }
277
278 inline bool java_lang_invoke_MethodHandle::is_instance(oop obj) {
279 return obj != nullptr && is_subclass(obj->klass());
280 }
281
282 inline bool java_lang_Class::is_instance(oop obj) {
283 return obj != nullptr && obj->klass() == vmClasses::Class_klass();
284 }
285
286 inline Klass* java_lang_Class::as_Klass(oop java_class) {
287 //%note memory_2
288 //assert(java_lang_Class::is_instance(java_class), "must be a Class object");
289 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset));
290 assert(k == nullptr || k->is_klass(), "type check");
291 return k;
292 }
293
294 inline bool java_lang_Class::is_primitive(oop java_class) {
295 // should assert:
296 //assert(java_lang_Class::is_instance(java_class), "must be a Class object");
297 bool is_primitive = (java_class->metadata_field(_klass_offset) == nullptr);
298
299 #ifdef ASSERT
300 if (is_primitive) {
301 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
302 assert(k == nullptr || is_java_primitive(ArrayKlass::cast(k)->element_type()),
303 "Should be either the T_VOID primitive or a java primitive");
304 }
305 #endif
306
307 return is_primitive;
308 }
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