26 #define SHARE_VM_OOPS_OBJARRAYKLASS_HPP
27
28 #include "classfile/classLoaderData.hpp"
29 #include "memory/specialized_oop_closures.hpp"
30 #include "oops/arrayKlass.hpp"
31 #include "utilities/macros.hpp"
32
33 // ObjArrayKlass is the klass for objArrays
34
35 class ObjArrayKlass : public ArrayKlass {
36 friend class VMStructs;
37 private:
38 Klass* _element_klass; // The klass of the elements of this array type
39 Klass* _bottom_klass; // The one-dimensional type (InstanceKlass or TypeArrayKlass)
40
41 // Constructor
42 ObjArrayKlass(int n, KlassHandle element_klass, Symbol* name);
43 static ObjArrayKlass* allocate(ClassLoaderData* loader_data, int n, KlassHandle klass_handle, Symbol* name, TRAPS);
44 public:
45 // For dummy objects
46 ObjArrayKlass() {}
47
48 // Instance variables
49 Klass* element_klass() const { return _element_klass; }
50 void set_element_klass(Klass* k) { _element_klass = k; }
51 Klass** element_klass_addr() { return &_element_klass; }
52
53 Klass* bottom_klass() const { return _bottom_klass; }
54 void set_bottom_klass(Klass* k) { _bottom_klass = k; }
55 Klass** bottom_klass_addr() { return &_bottom_klass; }
56
57 // Compiler/Interpreter offset
58 static ByteSize element_klass_offset() { return in_ByteSize(offset_of(ObjArrayKlass, _element_klass)); }
59
60 // Dispatched operation
61 bool can_be_primary_super_slow() const;
62 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots);
63 bool compute_is_subtype_of(Klass* k);
64 bool oop_is_objArray_slow() const { return true; }
65 int oop_size(oop obj) const;
66
101 int size() const { return ArrayKlass::static_size(header_size()); }
102
103 // Initialization (virtual from Klass)
104 void initialize(TRAPS);
105
106 // Garbage collection
107 void oop_follow_contents(oop obj);
108 inline void oop_follow_contents(oop obj, int index);
109 template <class T> inline void objarray_follow_contents(oop obj, int index);
110
111 int oop_adjust_pointers(oop obj);
112
113 // Parallel Scavenge and Parallel Old
114 PARALLEL_GC_DECLS
115 #if INCLUDE_ALL_GCS
116 inline void oop_follow_contents(ParCompactionManager* cm, oop obj, int index);
117 template <class T> inline void
118 objarray_follow_contents(ParCompactionManager* cm, oop obj, int index);
119 #endif // INCLUDE_ALL_GCS
120
121 // Iterators
122 int oop_oop_iterate(oop obj, ExtendedOopClosure* blk) {
123 return oop_oop_iterate_v(obj, blk);
124 }
125 int oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr) {
126 return oop_oop_iterate_v_m(obj, blk, mr);
127 }
128 #define ObjArrayKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \
129 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \
130 int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, \
131 MemRegion mr); \
132 int oop_oop_iterate_range##nv_suffix(oop obj, OopClosureType* blk, \
133 int start, int end);
134
135 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DECL)
136 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DECL)
137
138 // JVM support
139 jint compute_modifier_flags(TRAPS) const;
140
141 public:
142 // Printing
143 void print_on(outputStream* st) const;
144 void print_value_on(outputStream* st) const;
145
146 void oop_print_value_on(oop obj, outputStream* st);
147 #ifndef PRODUCT
148 void oop_print_on (oop obj, outputStream* st);
149 #endif //PRODUCT
150
151 const char* internal_name() const;
152
153 // Verification
154 void verify_on(outputStream* st);
155
156 void oop_verify_on(oop obj, outputStream* st);
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26 #define SHARE_VM_OOPS_OBJARRAYKLASS_HPP
27
28 #include "classfile/classLoaderData.hpp"
29 #include "memory/specialized_oop_closures.hpp"
30 #include "oops/arrayKlass.hpp"
31 #include "utilities/macros.hpp"
32
33 // ObjArrayKlass is the klass for objArrays
34
35 class ObjArrayKlass : public ArrayKlass {
36 friend class VMStructs;
37 private:
38 Klass* _element_klass; // The klass of the elements of this array type
39 Klass* _bottom_klass; // The one-dimensional type (InstanceKlass or TypeArrayKlass)
40
41 // Constructor
42 ObjArrayKlass(int n, KlassHandle element_klass, Symbol* name);
43 static ObjArrayKlass* allocate(ClassLoaderData* loader_data, int n, KlassHandle klass_handle, Symbol* name, TRAPS);
44 public:
45 // For dummy objects
46 ObjArrayKlass() : ArrayKlass(_obj_array) {}
47
48 // Instance variables
49 Klass* element_klass() const { return _element_klass; }
50 void set_element_klass(Klass* k) { _element_klass = k; }
51 Klass** element_klass_addr() { return &_element_klass; }
52
53 Klass* bottom_klass() const { return _bottom_klass; }
54 void set_bottom_klass(Klass* k) { _bottom_klass = k; }
55 Klass** bottom_klass_addr() { return &_bottom_klass; }
56
57 // Compiler/Interpreter offset
58 static ByteSize element_klass_offset() { return in_ByteSize(offset_of(ObjArrayKlass, _element_klass)); }
59
60 // Dispatched operation
61 bool can_be_primary_super_slow() const;
62 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots);
63 bool compute_is_subtype_of(Klass* k);
64 bool oop_is_objArray_slow() const { return true; }
65 int oop_size(oop obj) const;
66
101 int size() const { return ArrayKlass::static_size(header_size()); }
102
103 // Initialization (virtual from Klass)
104 void initialize(TRAPS);
105
106 // Garbage collection
107 void oop_follow_contents(oop obj);
108 inline void oop_follow_contents(oop obj, int index);
109 template <class T> inline void objarray_follow_contents(oop obj, int index);
110
111 int oop_adjust_pointers(oop obj);
112
113 // Parallel Scavenge and Parallel Old
114 PARALLEL_GC_DECLS
115 #if INCLUDE_ALL_GCS
116 inline void oop_follow_contents(ParCompactionManager* cm, oop obj, int index);
117 template <class T> inline void
118 objarray_follow_contents(ParCompactionManager* cm, oop obj, int index);
119 #endif // INCLUDE_ALL_GCS
120
121 template <bool nv, typename OopClosureType>
122 int oop_oop_iterate(oop obj, OopClosureType* closure);
123
124 template <bool nv, typename OopClosureType>
125 int oop_oop_iterate_m(oop obj, OopClosureType* blk, MemRegion mr);
126
127 template <bool nv, typename OopClosureType>
128 int oop_oop_iterate_backwards(oop obj, OopClosureType* blk);
129
130 template <bool nv, typename OopClosureType>
131 int oop_oop_iterate_range_t(oop obj, OopClosureType* blk, int start, int end);
132
133 // JVM support
134 jint compute_modifier_flags(TRAPS) const;
135
136 public:
137 // Printing
138 void print_on(outputStream* st) const;
139 void print_value_on(outputStream* st) const;
140
141 void oop_print_value_on(oop obj, outputStream* st);
142 #ifndef PRODUCT
143 void oop_print_on (oop obj, outputStream* st);
144 #endif //PRODUCT
145
146 const char* internal_name() const;
147
148 // Verification
149 void verify_on(outputStream* st);
150
151 void oop_verify_on(oop obj, outputStream* st);
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