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src/hotspot/share/oops/objArrayKlass.hpp

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  24 
  25 #ifndef SHARE_OOPS_OBJARRAYKLASS_HPP
  26 #define SHARE_OOPS_OBJARRAYKLASS_HPP
  27 
  28 #include "classfile/classLoaderData.hpp"
  29 #include "oops/arrayKlass.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // ObjArrayKlass is the klass for objArrays
  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* _element_klass;            // The klass of the elements of this array type
  45   Klass* _bottom_klass;             // The one-dimensional type (InstanceKlass or TypeArrayKlass)
  46 
  47   // Constructor
  48   ObjArrayKlass(int n, Klass* element_klass, Symbol* name);
  49   static ObjArrayKlass* allocate(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS);
  50  public:
  51   // For dummy objects
  52   ObjArrayKlass() {}
  53 
  54   // Instance variables
  55   Klass* element_klass() const      { return _element_klass; }
  56   void set_element_klass(Klass* k)  { _element_klass = k; }
  57   Klass** element_klass_addr()      { return &_element_klass; }
  58 
  59   Klass* bottom_klass() const       { return _bottom_klass; }
  60   void set_bottom_klass(Klass* k)   { _bottom_klass = k; }
  61   Klass** bottom_klass_addr()       { return &_bottom_klass; }
  62 
  63   ModuleEntry* module() const;
  64   PackageEntry* package() const;
  65 
  66   // Compiler/Interpreter offset
  67   static ByteSize element_klass_offset() { return in_ByteSize(offset_of(ObjArrayKlass, _element_klass)); }
  68 
  69   // Dispatched operation
  70   bool can_be_primary_super_slow() const;
  71   GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots,
  72                                                   Array<InstanceKlass*>* transitive_interfaces);
  73   DEBUG_ONLY(bool is_objArray_klass_slow()  const  { return true; })
  74   int oop_size(oop obj) const;
  75 
  76   // Allocation
  77   static Klass* allocate_objArray_klass(ClassLoaderData* loader_data,
  78                                           int n, Klass* element_klass, TRAPS);
  79 
  80   objArrayOop allocate(int length, TRAPS);
  81   oop multi_allocate(int rank, jint* sizes, TRAPS);
  82 
  83   // Copying
  84   void  copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
  85 
  86   // Compute protection domain
  87   oop protection_domain() const { return bottom_klass()->protection_domain(); }




  24 
  25 #ifndef SHARE_OOPS_OBJARRAYKLASS_HPP
  26 #define SHARE_OOPS_OBJARRAYKLASS_HPP
  27 
  28 #include "classfile/classLoaderData.hpp"
  29 #include "oops/arrayKlass.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // ObjArrayKlass is the klass for objArrays
  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(); }


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