430 // vtables
431 klassVtable vtable() const;
432 int vtable_length() const { return _vtable_len; }
433
434 // subclass check
435 bool is_subclass_of(const Klass* k) const;
436 // subtype check: true if is_subclass_of, or if k is interface and receiver implements it
437 bool is_subtype_of(Klass* k) const {
438 juint off = k->super_check_offset();
439 Klass* sup = *(Klass**)( (address)this + off );
440 const juint secondary_offset = in_bytes(secondary_super_cache_offset());
441 if (sup == k) {
442 return true;
443 } else if (off != secondary_offset) {
444 return false;
445 } else {
446 return search_secondary_supers(k);
447 }
448 }
449
450 // Is an oop/narrowOop null or subtype of this Klass?
451 template <typename T>
452 bool is_instanceof_or_null(T element);
453
454 bool search_secondary_supers(Klass* k) const;
455
456 // Find LCA in class hierarchy
457 Klass *LCA( Klass *k );
458
459 // Check whether reflection/jni/jvm code is allowed to instantiate this class;
460 // if not, throw either an Error or an Exception.
461 virtual void check_valid_for_instantiation(bool throwError, TRAPS);
462
463 // array copying
464 virtual void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
465
466 // tells if the class should be initialized
467 virtual bool should_be_initialized() const { return false; }
468 // initializes the klass
469 virtual void initialize(TRAPS);
470 // lookup operation for MethodLookupCache
471 friend class MethodLookupCache;
472 virtual Klass* find_field(Symbol* name, Symbol* signature, fieldDescriptor* fd) const;
473 virtual Method* uncached_lookup_method(const Symbol* name, const Symbol* signature, OverpassLookupMode overpass_mode) const;
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430 // vtables
431 klassVtable vtable() const;
432 int vtable_length() const { return _vtable_len; }
433
434 // subclass check
435 bool is_subclass_of(const Klass* k) const;
436 // subtype check: true if is_subclass_of, or if k is interface and receiver implements it
437 bool is_subtype_of(Klass* k) const {
438 juint off = k->super_check_offset();
439 Klass* sup = *(Klass**)( (address)this + off );
440 const juint secondary_offset = in_bytes(secondary_super_cache_offset());
441 if (sup == k) {
442 return true;
443 } else if (off != secondary_offset) {
444 return false;
445 } else {
446 return search_secondary_supers(k);
447 }
448 }
449
450 bool search_secondary_supers(Klass* k) const;
451
452 // Find LCA in class hierarchy
453 Klass *LCA( Klass *k );
454
455 // Check whether reflection/jni/jvm code is allowed to instantiate this class;
456 // if not, throw either an Error or an Exception.
457 virtual void check_valid_for_instantiation(bool throwError, TRAPS);
458
459 // array copying
460 virtual void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS);
461
462 // tells if the class should be initialized
463 virtual bool should_be_initialized() const { return false; }
464 // initializes the klass
465 virtual void initialize(TRAPS);
466 // lookup operation for MethodLookupCache
467 friend class MethodLookupCache;
468 virtual Klass* find_field(Symbol* name, Symbol* signature, fieldDescriptor* fd) const;
469 virtual Method* uncached_lookup_method(const Symbol* name, const Symbol* signature, OverpassLookupMode overpass_mode) const;
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