50 static int _offset_of_static_fields;
51
52 InstanceMirrorKlass(const ClassFileParser& parser) : InstanceKlass(parser, Kind) {}
53
54 template <class OopClosureType>
55 inline void do_metadata(oop obj, OopClosureType* closure);
56
57 public:
58 InstanceMirrorKlass();
59
60 static InstanceMirrorKlass* cast(Klass* k) {
61 return const_cast<InstanceMirrorKlass*>(cast(const_cast<const Klass*>(k)));
62 }
63
64 static const InstanceMirrorKlass* cast(const Klass* k) {
65 assert(k->is_mirror_instance_klass(), "cast to InstanceMirrorKlass");
66 return static_cast<const InstanceMirrorKlass*>(k);
67 }
68
69 // Returns the size of the instance including the extra static fields.
70 virtual size_t oop_size(oop obj) const;
71
72 // Static field offset is an offset into the Heap, should be converted by
73 // based on UseCompressedOop for traversal
74 static HeapWord* start_of_static_fields(oop obj) {
75 return (HeapWord*)(cast_from_oop<intptr_t>(obj) + offset_of_static_fields());
76 }
77
78 static void init_offset_of_static_fields() {
79 // Cache the offset of the static fields in the Class instance
80 assert(_offset_of_static_fields == 0, "once");
81 _offset_of_static_fields = InstanceMirrorKlass::cast(vmClasses::Class_klass())->size_helper() << LogHeapWordSize;
82 }
83
84 static int offset_of_static_fields() {
85 return _offset_of_static_fields;
86 }
87
88 int compute_static_oop_field_count(oop obj);
89
90 // Given a Klass return the size of the instance
91 size_t instance_size(Klass* k);
92
93 // allocation
94 instanceOop allocate_instance(Klass* k, TRAPS);
95
96 static void serialize_offsets(class SerializeClosure* f) NOT_CDS_RETURN;
97
98 // Oop fields (and metadata) iterators
99 //
100 // The InstanceMirrorKlass iterators also visit the hidden Klass pointer.
101
102 // Iterate over the static fields.
103 template <typename T, class OopClosureType>
104 inline void oop_oop_iterate_statics(oop obj, OopClosureType* closure);
105
106 // Forward iteration
107 // Iterate over the oop fields and metadata.
108 template <typename T, class OopClosureType>
109 inline void oop_oop_iterate(oop obj, OopClosureType* closure);
110
111 // Reverse iteration
112 // Iterate over the oop fields and metadata.
113 template <typename T, class OopClosureType>
114 inline void oop_oop_iterate_reverse(oop obj, OopClosureType* closure);
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50 static int _offset_of_static_fields;
51
52 InstanceMirrorKlass(const ClassFileParser& parser) : InstanceKlass(parser, Kind) {}
53
54 template <class OopClosureType>
55 inline void do_metadata(oop obj, OopClosureType* closure);
56
57 public:
58 InstanceMirrorKlass();
59
60 static InstanceMirrorKlass* cast(Klass* k) {
61 return const_cast<InstanceMirrorKlass*>(cast(const_cast<const Klass*>(k)));
62 }
63
64 static const InstanceMirrorKlass* cast(const Klass* k) {
65 assert(k->is_mirror_instance_klass(), "cast to InstanceMirrorKlass");
66 return static_cast<const InstanceMirrorKlass*>(k);
67 }
68
69 // Returns the size of the instance including the extra static fields.
70 size_t oop_size(oop obj, markWord mark) const;
71 int hash_offset_in_bytes(oop obj, markWord m) const;
72
73 // Static field offset is an offset into the Heap, should be converted by
74 // based on UseCompressedOop for traversal
75 static HeapWord* start_of_static_fields(oop obj) {
76 return (HeapWord*)(cast_from_oop<intptr_t>(obj) + offset_of_static_fields());
77 }
78
79 static void init_offset_of_static_fields() {
80 // Cache the offset of the static fields in the Class instance
81 assert(_offset_of_static_fields == 0, "once");
82 _offset_of_static_fields = InstanceMirrorKlass::cast(vmClasses::Class_klass())->size_helper() << LogHeapWordSize;
83 }
84
85 static int offset_of_static_fields() {
86 return _offset_of_static_fields;
87 }
88
89 int compute_static_oop_field_count(oop obj);
90
91 // Given a Klass return the size of the instance
92 size_t instance_size(Klass* k);
93
94 // allocation
95 instanceOop allocate_instance(Klass* k, bool extend, TRAPS);
96
97 static void serialize_offsets(class SerializeClosure* f) NOT_CDS_RETURN;
98
99 // Oop fields (and metadata) iterators
100 //
101 // The InstanceMirrorKlass iterators also visit the hidden Klass pointer.
102
103 // Iterate over the static fields.
104 template <typename T, class OopClosureType>
105 inline void oop_oop_iterate_statics(oop obj, OopClosureType* closure);
106
107 // Forward iteration
108 // Iterate over the oop fields and metadata.
109 template <typename T, class OopClosureType>
110 inline void oop_oop_iterate(oop obj, OopClosureType* closure);
111
112 // Reverse iteration
113 // Iterate over the oop fields and metadata.
114 template <typename T, class OopClosureType>
115 inline void oop_oop_iterate_reverse(oop obj, OopClosureType* closure);
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