34 // HotSpot virtual machine. In the vm, each Klass* contains an 35 // embedded Klass object. ciKlass is subclassed to explicitly 36 // represent the kind of Klass embedded in the Klass*. For 37 // example, a Klass* with an embedded ObjArrayKlass object is 38 // represented in the ciObject hierarchy by the class 39 // ciObjArrayKlass. 40 class ciKlass : public ciType { 41 CI_PACKAGE_ACCESS 42 friend class ciEnv; 43 friend class ciField; 44 friend class ciMethod; 45 friend class ciMethodData; 46 friend class ciObjArrayKlass; 47 friend class ciReceiverTypeData; 48 49 private: 50 ciSymbol* _name; 51 jint _layout_helper; 52 53 protected: 54 ciKlass(KlassHandle k_h, ciSymbol* name); 55 ciKlass(ciSymbol* name, BasicType bt); 56 57 Klass* get_Klass() const { 58 Klass* k = (Klass*)_metadata; 59 assert(k != NULL, "illegal use of unloaded klass"); 60 return k; 61 } 62 63 // Certain subklasses have an associated class loader. 64 virtual oop loader() { return NULL; } 65 virtual jobject loader_handle() { return NULL; } 66 67 virtual oop protection_domain() { return NULL; } 68 virtual jobject protection_domain_handle() { return NULL; } 69 70 const char* type_string() { return "ciKlass"; } 71 72 void print_impl(outputStream* st); 73 74 public: 75 ciKlass(KlassHandle k_h); 76 77 // What is the name of this klass? 78 ciSymbol* name() const { return _name; } 79 80 // What is its layout helper value? 81 jint layout_helper() { return _layout_helper; } 82 83 bool is_subtype_of(ciKlass* klass); 84 bool is_subclass_of(ciKlass* klass); 85 juint super_depth(); 86 juint super_check_offset(); 87 ciKlass* super_of_depth(juint i); 88 bool can_be_primary_super(); 89 static juint primary_super_limit() { return Klass::primary_super_limit(); } 90 91 // Is this ciObject the ciInstanceKlass representing java.lang.Object()? 92 virtual bool is_java_lang_Object() const { return false; } 93 94 // Get the shared parent of two klasses. 95 ciKlass* least_common_ancestor(ciKlass* k); | 34 // HotSpot virtual machine. In the vm, each Klass* contains an 35 // embedded Klass object. ciKlass is subclassed to explicitly 36 // represent the kind of Klass embedded in the Klass*. For 37 // example, a Klass* with an embedded ObjArrayKlass object is 38 // represented in the ciObject hierarchy by the class 39 // ciObjArrayKlass. 40 class ciKlass : public ciType { 41 CI_PACKAGE_ACCESS 42 friend class ciEnv; 43 friend class ciField; 44 friend class ciMethod; 45 friend class ciMethodData; 46 friend class ciObjArrayKlass; 47 friend class ciReceiverTypeData; 48 49 private: 50 ciSymbol* _name; 51 jint _layout_helper; 52 53 protected: 54 ciKlass(Klass* k, ciSymbol* name); 55 ciKlass(ciSymbol* name, BasicType bt); 56 57 Klass* get_Klass() const { 58 Klass* k = (Klass*)_metadata; 59 assert(k != NULL, "illegal use of unloaded klass"); 60 return k; 61 } 62 63 // Certain subklasses have an associated class loader. 64 virtual oop loader() { return NULL; } 65 virtual jobject loader_handle() { return NULL; } 66 67 virtual oop protection_domain() { return NULL; } 68 virtual jobject protection_domain_handle() { return NULL; } 69 70 const char* type_string() { return "ciKlass"; } 71 72 void print_impl(outputStream* st); 73 74 public: 75 ciKlass(Klass* k); 76 77 // What is the name of this klass? 78 ciSymbol* name() const { return _name; } 79 80 // What is its layout helper value? 81 jint layout_helper() { return _layout_helper; } 82 83 bool is_subtype_of(ciKlass* klass); 84 bool is_subclass_of(ciKlass* klass); 85 juint super_depth(); 86 juint super_check_offset(); 87 ciKlass* super_of_depth(juint i); 88 bool can_be_primary_super(); 89 static juint primary_super_limit() { return Klass::primary_super_limit(); } 90 91 // Is this ciObject the ciInstanceKlass representing java.lang.Object()? 92 virtual bool is_java_lang_Object() const { return false; } 93 94 // Get the shared parent of two klasses. 95 ciKlass* least_common_ancestor(ciKlass* k); |