78     assert(is_resolved(), "bad call");

    78     assert(is_resolved(), "bad call");

    79     return (Klass*)_ptr;

    79     return (Klass*)_ptr;

    80   }

    80   }

    81 };

    81 };

    82 

    82 

    83 class ConstantPool : public Metadata {

    84 class ConstantPool : public Metadata {

    84   friend class VMStructs;

    85   friend class VMStructs;

    85   friend class BytecodeInterpreter;  // Directly extracts an oop in the pool for fast instanceof/checkcast

    86   friend class BytecodeInterpreter;  // Directly extracts an oop in the pool for fast instanceof/checkcast

    86   friend class Universe;             // For null constructor

    87   friend class Universe;             // For null constructor

    87  private:

    88  private:

   682   // Tells whether index is within bounds.

   683   // Tells whether index is within bounds.

   683   bool is_within_bounds(int index) const {

   684   bool is_within_bounds(int index) const {

   684     return 0 <= index && index < length();

   685     return 0 <= index && index < length();

   685   }

   686   }

   686 

   687 

   687   static int header_size()             { return sizeof(ConstantPool)/HeapWordSize; }

   689   static int header_size()             { return sizeof(ConstantPool)/HeapWordSize; }

   688   static int size(int length)          { return align_object_size(header_size() + length); }

   690   static int size(int length)          { return align_object_size(header_size() + length); }

   689   int size() const                     { return size(length()); }

   691   int size() const                     { return size(length()); }

   690 

   695 

   691   friend class ClassFileParser;

   696   friend class ClassFileParser;

   692   friend class SystemDictionary;

   697   friend class SystemDictionary;

   693 

   698 

   694   // Used by compiler to prevent classloading.

   699   // Used by compiler to prevent classloading.