33
34 class ObjArrayKlass : public ArrayKlass {
35 friend class VMStructs;
36 friend class JVMCIVMStructs;
37
38 public:
39 static const KlassID ID = ObjArrayKlassID;
40
41 private:
42 // If you add a new field that points to any metaspace object, you
43 // must add this field to ObjArrayKlass::metaspace_pointers_do().
44 Klass* _bottom_klass; // The one-dimensional type (InstanceKlass or TypeArrayKlass)
45
46 // Constructor
47 ObjArrayKlass(int n, Klass* element_klass, Symbol* name);
48 static ObjArrayKlass* allocate(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS);
49 public:
50 // For dummy objects
51 ObjArrayKlass() {}
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 ModuleEntry* module() const;
58 PackageEntry* package() const;
59
60 // Dispatched operation
61 bool can_be_primary_super_slow() const;
62 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots,
63 Array<InstanceKlass*>* transitive_interfaces);
64 DEBUG_ONLY(bool is_objArray_klass_slow() const { return true; })
65 int oop_size(oop obj) const;
66
67 // Allocation
68 static Klass* allocate_objArray_klass(ClassLoaderData* loader_data,
69 int n, Klass* element_klass, TRAPS);
70
71 objArrayOop allocate(int length, TRAPS);
72 oop multi_allocate(int rank, jint* sizes, TRAPS);
73
74 // Copying
75 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
76
77 // Compute protection domain
78 oop protection_domain() const { return bottom_klass()->protection_domain(); }
79
80 virtual void metaspace_pointers_do(MetaspaceClosure* iter);
81
82 private:
83 // Either oop or narrowOop depending on UseCompressedOops.
84 // must be called from within ObjArrayKlass.cpp
85 void do_copy(arrayOop s, size_t src_offset,
86 arrayOop d, size_t dst_offset,
87 int length, TRAPS);
88 protected:
89 // Returns the ObjArrayKlass for n'th dimension.
90 virtual Klass* array_klass_impl(bool or_null, int n, TRAPS);
91
92 // Returns the array class with this class as element type.
93 virtual Klass* array_klass_impl(bool or_null, TRAPS);
94
95 public:
96
97 static ObjArrayKlass* cast(Klass* k) {
98 return const_cast<ObjArrayKlass*>(cast(const_cast<const Klass*>(k)));
99 }
100
101 static const ObjArrayKlass* cast(const Klass* k) {
102 assert(k->is_objArray_klass(), "cast to ObjArrayKlass");
103 return static_cast<const ObjArrayKlass*>(k);
104 }
105
106 // Sizing
107 static int header_size() { return sizeof(ObjArrayKlass)/wordSize; }
108 int size() const { return ArrayKlass::static_size(header_size()); }
109
110 // Initialization (virtual from Klass)
111 void initialize(TRAPS);
112
113 // Oop fields (and metadata) iterators
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33
34 class ObjArrayKlass : public ArrayKlass {
35 friend class VMStructs;
36 friend class JVMCIVMStructs;
37
38 public:
39 static const KlassID ID = ObjArrayKlassID;
40
41 private:
42 // If you add a new field that points to any metaspace object, you
43 // must add this field to ObjArrayKlass::metaspace_pointers_do().
44 Klass* _bottom_klass; // The one-dimensional type (InstanceKlass or TypeArrayKlass)
45
46 // Constructor
47 ObjArrayKlass(int n, Klass* element_klass, Symbol* name);
48 static ObjArrayKlass* allocate(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS);
49 public:
50 // For dummy objects
51 ObjArrayKlass() {}
52
53 // if ObjArrayKlass is used to represent an LWorld "Q-type" value type array, the only thing we can give null-free (i.e. not flattened)
54 // ArrayStorageProperties::empty meaning nothing special, array of references (possibly even to value types)
55 ArrayStorageProperties storage_properties();
56
57 Klass* bottom_klass() const { return _bottom_klass; }
58 void set_bottom_klass(Klass* k) { _bottom_klass = k; }
59 Klass** bottom_klass_addr() { return &_bottom_klass; }
60
61 ModuleEntry* module() const;
62 PackageEntry* package() const;
63
64 // Dispatched operation
65 bool can_be_primary_super_slow() const;
66 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots,
67 Array<InstanceKlass*>* transitive_interfaces);
68 DEBUG_ONLY(bool is_objArray_klass_slow() const { return true; })
69 int oop_size(oop obj) const;
70
71 // Allocation
72 static Klass* allocate_objArray_klass(ArrayStorageProperties storage_props,
73 int n, Klass* element_klass, TRAPS);
74
75 objArrayOop allocate(int length, TRAPS);
76 oop multi_allocate(int rank, jint* sizes, TRAPS);
77
78 // Copying
79 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
80
81 // Compute protection domain
82 oop protection_domain() const { return bottom_klass()->protection_domain(); }
83
84 virtual void metaspace_pointers_do(MetaspaceClosure* iter);
85
86 private:
87 // Either oop or narrowOop depending on UseCompressedOops.
88 // must be called from within ObjArrayKlass.cpp
89 void do_copy(arrayOop s, size_t src_offset,
90 arrayOop d, size_t dst_offset,
91 int length, TRAPS);
92 protected:
93 // Returns the ObjArrayKlass for n'th dimension.
94 virtual Klass* array_klass_impl(ArrayStorageProperties storage_props, bool or_null, int n, TRAPS);
95
96 // Returns the array class with this class as element type.
97 virtual Klass* array_klass_impl(ArrayStorageProperties storage_props, bool or_null, TRAPS);
98
99 public:
100
101 static ObjArrayKlass* cast(Klass* k) {
102 return const_cast<ObjArrayKlass*>(cast(const_cast<const Klass*>(k)));
103 }
104
105 static const ObjArrayKlass* cast(const Klass* k) {
106 assert(k->is_objArray_klass(), "cast to ObjArrayKlass");
107 return static_cast<const ObjArrayKlass*>(k);
108 }
109
110 // Sizing
111 static int header_size() { return sizeof(ObjArrayKlass)/wordSize; }
112 int size() const { return ArrayKlass::static_size(header_size()); }
113
114 // Initialization (virtual from Klass)
115 void initialize(TRAPS);
116
117 // Oop fields (and metadata) iterators
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