25 #ifndef SHARE_OOPS_OBJARRAYKLASS_HPP
26 #define SHARE_OOPS_OBJARRAYKLASS_HPP
27
28 #include "oops/arrayKlass.hpp"
29 #include "utilities/macros.hpp"
30
31 class ClassLoaderData;
32
33 // ObjArrayKlass is the klass for objArrays
34
35 class ObjArrayKlass : public ArrayKlass {
36 friend class VMStructs;
37 friend class JVMCIVMStructs;
38
39 public:
40 static const KlassKind Kind = ObjArrayKlassKind;
41
42 private:
43 // If you add a new field that points to any metaspace object, you
44 // must add this field to ObjArrayKlass::metaspace_pointers_do().
45 Klass* _element_klass; // The klass of the elements of this array type
46 Klass* _bottom_klass; // The one-dimensional type (InstanceKlass or TypeArrayKlass)
47
48 // Constructor
49 ObjArrayKlass(int n, Klass* element_klass, Symbol* name);
50 static ObjArrayKlass* allocate(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS);
51 public:
52 // For dummy objects
53 ObjArrayKlass() {}
54
55 // Instance variables
56 Klass* element_klass() const { return _element_klass; }
57 void set_element_klass(Klass* k) { _element_klass = k; }
58 Klass** element_klass_addr() { return &_element_klass; }
59
60 Klass* bottom_klass() const { return _bottom_klass; }
61 void set_bottom_klass(Klass* k) { _bottom_klass = k; }
62 Klass** bottom_klass_addr() { return &_bottom_klass; }
63
64 ModuleEntry* module() const;
65 PackageEntry* package() const;
66
67 // Compiler/Interpreter offset
68 static ByteSize element_klass_offset() { return byte_offset_of(ObjArrayKlass, _element_klass); }
69
70 // Dispatched operation
71 bool can_be_primary_super_slow() const;
72 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots,
73 Array<InstanceKlass*>* transitive_interfaces);
74 DEBUG_ONLY(bool is_objArray_klass_slow() const { return true; })
75 size_t oop_size(oop obj) const;
76
77 // Allocation
78 static ObjArrayKlass* allocate_objArray_klass(ClassLoaderData* loader_data,
79 int n, Klass* element_klass, TRAPS);
80
81 objArrayOop allocate(int length, TRAPS);
82 oop multi_allocate(int rank, jint* sizes, TRAPS);
83
84 // Copying
85 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
86
87 // Compute protection domain
88 oop protection_domain() const { return bottom_klass()->protection_domain(); }
89
90 virtual void metaspace_pointers_do(MetaspaceClosure* iter);
91
92 private:
93 // Either oop or narrowOop depending on UseCompressedOops.
94 // must be called from within ObjArrayKlass.cpp
95 void do_copy(arrayOop s, size_t src_offset,
96 arrayOop d, size_t dst_offset,
97 int length, TRAPS);
98 public:
99 static ObjArrayKlass* cast(Klass* k) {
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25 #ifndef SHARE_OOPS_OBJARRAYKLASS_HPP
26 #define SHARE_OOPS_OBJARRAYKLASS_HPP
27
28 #include "oops/arrayKlass.hpp"
29 #include "utilities/macros.hpp"
30
31 class ClassLoaderData;
32
33 // ObjArrayKlass is the klass for objArrays
34
35 class ObjArrayKlass : public ArrayKlass {
36 friend class VMStructs;
37 friend class JVMCIVMStructs;
38
39 public:
40 static const KlassKind Kind = ObjArrayKlassKind;
41
42 private:
43 // If you add a new field that points to any metaspace object, you
44 // must add this field to ObjArrayKlass::metaspace_pointers_do().
45 Klass* _bottom_klass; // The one-dimensional type (InstanceKlass or TypeArrayKlass)
46
47 // Constructor
48 ObjArrayKlass(int n, Klass* element_klass, Symbol* name, bool null_free);
49 static ObjArrayKlass* allocate(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, bool null_free, TRAPS);
50 public:
51 // For dummy objects
52 ObjArrayKlass() {}
53
54 Klass* bottom_klass() const { return _bottom_klass; }
55 void set_bottom_klass(Klass* k) { _bottom_klass = k; }
56 Klass** bottom_klass_addr() { return &_bottom_klass; }
57
58 ModuleEntry* module() const;
59 PackageEntry* package() const;
60
61 // Dispatched operation
62 bool can_be_primary_super_slow() const;
63 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots,
64 Array<InstanceKlass*>* transitive_interfaces);
65 DEBUG_ONLY(bool is_objArray_klass_slow() const { return true; })
66 size_t oop_size(oop obj) const;
67
68 // Allocation
69 static ObjArrayKlass* allocate_objArray_klass(ClassLoaderData* loader_data,
70 int n, Klass* element_klass,
71 bool null_free, TRAPS);
72
73 objArrayOop allocate(int length, TRAPS);
74 oop multi_allocate(int rank, jint* sizes, TRAPS);
75
76 // Copying
77 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
78
79 // Compute protection domain
80 oop protection_domain() const { return bottom_klass()->protection_domain(); }
81
82 virtual void metaspace_pointers_do(MetaspaceClosure* iter);
83
84 private:
85 // Either oop or narrowOop depending on UseCompressedOops.
86 // must be called from within ObjArrayKlass.cpp
87 void do_copy(arrayOop s, size_t src_offset,
88 arrayOop d, size_t dst_offset,
89 int length, TRAPS);
90 public:
91 static ObjArrayKlass* cast(Klass* k) {
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