1 /*
   2  * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_CLASSFILE_CLASSFILEPARSER_HPP
  26 #define SHARE_CLASSFILE_CLASSFILEPARSER_HPP
  27 
  28 #include "memory/referenceType.hpp"
  29 #include "oops/annotations.hpp"
  30 #include "oops/constantPool.hpp"
  31 #include "oops/instanceKlass.hpp"
  32 #include "oops/typeArrayOop.hpp"
  33 #include "utilities/accessFlags.hpp"
  34 
  35 class Annotations;
  36 template <typename T>
  37 class Array;
  38 class ClassFileStream;
  39 class ClassLoaderData;
  40 class CompressedLineNumberWriteStream;
  41 class ConstMethod;
  42 class FieldInfo;
  43 template <typename T>
  44 class GrowableArray;
  45 class InstanceKlass;
  46 class Symbol;
  47 class TempNewSymbol;
  48 class FieldLayoutBuilder;
  49 
  50 
  51 class AnnotationCollector : public ResourceObj{
  52 public:
  53   enum Location { _in_field, _in_method, _in_class };
  54   enum ID {
  55     _unknown = 0,
  56     _method_CallerSensitive,
  57     _method_ForceInline,
  58     _method_DontInline,
  59     _method_InjectedProfile,
  60     _method_LambdaForm_Compiled,
  61     _method_Hidden,
  62     _method_HotSpotIntrinsicCandidate,
  63     _jdk_internal_vm_annotation_Contended,
  64     _field_Stable,
  65     _jdk_internal_vm_annotation_ReservedStackAccess,
  66     _annotation_LIMIT
  67   };
  68   const Location _location;
  69   int _annotations_present;
  70   u2 _contended_group;
  71 
  72   AnnotationCollector(Location location)
  73     : _location(location), _annotations_present(0)
  74   {
  75     assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, "");
  76   }
  77   // If this annotation name has an ID, report it (or _none).
  78   ID annotation_index(const ClassLoaderData* loader_data, const Symbol* name);
  79   // Set the annotation name:
  80   void set_annotation(ID id) {
  81     assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
  82     _annotations_present |= nth_bit((int)id);
  83   }
  84 
  85   void remove_annotation(ID id) {
  86     assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
  87     _annotations_present &= ~nth_bit((int)id);
  88   }
  89 
  90   // Report if the annotation is present.
  91   bool has_any_annotations() const { return _annotations_present != 0; }
  92   bool has_annotation(ID id) const { return (nth_bit((int)id) & _annotations_present) != 0; }
  93 
  94   void set_contended_group(u2 group) { _contended_group = group; }
  95   u2 contended_group() const { return _contended_group; }
  96 
  97   bool is_contended() const { return has_annotation(_jdk_internal_vm_annotation_Contended); }
  98 
  99   void set_stable(bool stable) { set_annotation(_field_Stable); }
 100   bool is_stable() const { return has_annotation(_field_Stable); }
 101 };
 102 
 103 // Utility to collect and compact oop maps during layout
 104 class OopMapBlocksBuilder : public ResourceObj {
 105 public:
 106   OopMapBlock*  nonstatic_oop_maps;
 107   unsigned int  nonstatic_oop_map_count;
 108   unsigned int  max_nonstatic_oop_maps;
 109 
 110  public:
 111   OopMapBlocksBuilder(unsigned int  max_blocks, TRAPS);
 112   OopMapBlock* last_oop_map() const;
 113   void initialize_inherited_blocks(OopMapBlock* blocks, unsigned int nof_blocks);
 114   void add(int offset, int count);
 115   void copy(OopMapBlock* dst);
 116   void compact(TRAPS);
 117   void print_on(outputStream* st) const;
 118   void print_value_on(outputStream* st) const;
 119 };
 120 
 121 // Values needed for oopmap and InstanceKlass creation
 122 class FieldLayoutInfo : public ResourceObj {
 123  public:
 124   OopMapBlocksBuilder* oop_map_blocks;
 125   int           instance_size;
 126   int           nonstatic_field_size;
 127   int           static_field_size;
 128   bool          has_nonstatic_fields;
 129 };
 130 
 131 // Parser for for .class files
 132 //
 133 // The bytes describing the class file structure is read from a Stream object
 134 
 135 class ClassFileParser {
 136  friend class FieldLayoutBuilder;
 137  friend class FieldLayout;
 138 
 139 
 140  class ClassAnnotationCollector : public AnnotationCollector {
 141  public:
 142    ClassAnnotationCollector() : AnnotationCollector(_in_class) { }
 143    void apply_to(InstanceKlass* ik);
 144  };
 145  class FieldAllocationCount;
 146  class FieldAnnotationCollector;
 147 
 148  public:
 149   // The ClassFileParser has an associated "publicity" level
 150   // It is used to control which subsystems (if any)
 151   // will observe the parsing (logging, events, tracing).
 152   // Default level is "BROADCAST", which is equivalent to
 153   // a "public" parsing attempt.
 154   //
 155   // "INTERNAL" level should be entirely private to the
 156   // caller - this allows for internal reuse of ClassFileParser
 157   //
 158   enum Publicity {
 159     INTERNAL,
 160     BROADCAST
 161   };
 162 
 163   enum { LegalClass, LegalField, LegalMethod }; // used to verify unqualified names
 164 
 165  private:
 166   // Potentially unaligned pointer to various 16-bit entries in the class file
 167   typedef void unsafe_u2;
 168 
 169   const ClassFileStream* _stream; // Actual input stream
 170   const Symbol* _requested_name;
 171   Symbol* _class_name;
 172   mutable ClassLoaderData* _loader_data;
 173   const InstanceKlass* _unsafe_anonymous_host;
 174   GrowableArray<Handle>* _cp_patches; // overrides for CP entries
 175   int _num_patched_klasses;
 176   int _max_num_patched_klasses;
 177   int _orig_cp_size;
 178   int _first_patched_klass_resolved_index;
 179 
 180   // Metadata created before the instance klass is created.  Must be deallocated
 181   // if not transferred to the InstanceKlass upon successful class loading
 182   // in which case these pointers have been set to NULL.
 183   const InstanceKlass* _super_klass;
 184   ConstantPool* _cp;
 185   Array<u2>* _fields;
 186   Array<Method*>* _methods;
 187   Array<u2>* _inner_classes;
 188   Array<u2>* _nest_members;
 189   u2 _nest_host;
 190   Array<InstanceKlass*>* _local_interfaces;
 191   Array<InstanceKlass*>* _transitive_interfaces;
 192   Annotations* _combined_annotations;
 193   AnnotationArray* _annotations;
 194   AnnotationArray* _type_annotations;
 195   Array<AnnotationArray*>* _fields_annotations;
 196   Array<AnnotationArray*>* _fields_type_annotations;
 197   InstanceKlass* _klass;  // InstanceKlass* once created.
 198   InstanceKlass* _klass_to_deallocate; // an InstanceKlass* to be destroyed
 199 
 200   ClassAnnotationCollector* _parsed_annotations;
 201   FieldAllocationCount* _fac;
 202   FieldLayoutInfo* _field_info;
 203   const intArray* _method_ordering;
 204   GrowableArray<Method*>* _all_mirandas;
 205 
 206   enum { fixed_buffer_size = 128 };
 207   u_char _linenumbertable_buffer[fixed_buffer_size];
 208 
 209   // Size of Java vtable (in words)
 210   int _vtable_size;
 211   int _itable_size;
 212 
 213   int _num_miranda_methods;
 214 
 215   int _alignment;
 216   int _first_field_offset;
 217   int _exact_size_in_bytes;
 218 
 219   ReferenceType _rt;
 220   Handle _protection_domain;
 221   AccessFlags _access_flags;
 222 
 223   // for tracing and notifications
 224   Publicity _pub_level;
 225 
 226   // Used to keep track of whether a constant pool item 19 or 20 is found.  These
 227   // correspond to CONSTANT_Module and CONSTANT_Package tags and are not allowed
 228   // in regular class files.  For class file version >= 53, a CFE cannot be thrown
 229   // immediately when these are seen because a NCDFE must be thrown if the class's
 230   // access_flags have ACC_MODULE set.  But, the access_flags haven't been looked
 231   // at yet.  So, the bad constant pool item is cached here.  A value of zero
 232   // means that no constant pool item 19 or 20 was found.
 233   short _bad_constant_seen;
 234 
 235   // class attributes parsed before the instance klass is created:
 236   bool _synthetic_flag;
 237   int _sde_length;
 238   const char* _sde_buffer;
 239   u2 _sourcefile_index;
 240   u2 _generic_signature_index;
 241 
 242   u2 _major_version;
 243   u2 _minor_version;
 244   u2 _this_class_index;
 245   u2 _super_class_index;
 246   u2 _itfs_len;
 247   u2 _java_fields_count;
 248 
 249   bool _need_verify;
 250   bool _relax_verify;
 251 
 252   bool _has_nonstatic_concrete_methods;
 253   bool _declares_nonstatic_concrete_methods;
 254   bool _has_final_method;
 255   bool _has_flattenable_fields;

 256 
 257   // precomputed flags
 258   bool _has_finalizer;
 259   bool _has_empty_finalizer;
 260   bool _has_vanilla_constructor;
 261   int _max_bootstrap_specifier_index;  // detects BSS values
 262 
 263   void parse_stream(const ClassFileStream* const stream, TRAPS);
 264 
 265   void post_process_parsed_stream(const ClassFileStream* const stream,
 266                                   ConstantPool* cp,
 267                                   TRAPS);
 268 
 269   void prepend_host_package_name(const InstanceKlass* unsafe_anonymous_host, TRAPS);
 270   void fix_unsafe_anonymous_class_name(TRAPS);
 271 
 272   void fill_instance_klass(InstanceKlass* ik, bool cf_changed_in_CFLH, TRAPS);
 273   void set_klass(InstanceKlass* instance);
 274 
 275   void set_class_bad_constant_seen(short bad_constant);
 276   short class_bad_constant_seen() { return  _bad_constant_seen; }
 277   void set_class_synthetic_flag(bool x)        { _synthetic_flag = x; }
 278   void set_class_sourcefile_index(u2 x)        { _sourcefile_index = x; }
 279   void set_class_generic_signature_index(u2 x) { _generic_signature_index = x; }
 280   void set_class_sde_buffer(const char* x, int len)  { _sde_buffer = x; _sde_length = len; }
 281 
 282   void create_combined_annotations(TRAPS);
 283   void apply_parsed_class_attributes(InstanceKlass* k);  // update k
 284   void apply_parsed_class_metadata(InstanceKlass* k, int fields_count, TRAPS);
 285   void clear_class_metadata();
 286 
 287   // Constant pool parsing
 288   void parse_constant_pool_entries(const ClassFileStream* const stream,
 289                                    ConstantPool* cp,
 290                                    const int length,
 291                                    TRAPS);
 292 
 293   void parse_constant_pool(const ClassFileStream* const cfs,
 294                            ConstantPool* const cp,
 295                            const int length,
 296                            TRAPS);
 297 
 298   // Interface parsing
 299   void parse_interfaces(const ClassFileStream* const stream,
 300                         const int itfs_len,
 301                         ConstantPool* const cp,
 302                         bool* has_nonstatic_concrete_methods,
 303                         TRAPS);
 304 
 305   const InstanceKlass* parse_super_class(ConstantPool* const cp,
 306                                          const int super_class_index,
 307                                          const bool need_verify,
 308                                          TRAPS);
 309 
 310   // Field parsing
 311   void parse_field_attributes(const ClassFileStream* const cfs,
 312                               u2 attributes_count,
 313                               bool is_static,
 314                               u2 signature_index,
 315                               u2* const constantvalue_index_addr,
 316                               bool* const is_synthetic_addr,
 317                               u2* const generic_signature_index_addr,
 318                               FieldAnnotationCollector* parsed_annotations,
 319                               TRAPS);
 320 
 321   void parse_fields(const ClassFileStream* const cfs,
 322                     bool is_interface,
 323                     bool is_value_type,
 324                     FieldAllocationCount* const fac,
 325                     ConstantPool* cp,
 326                     const int cp_size,
 327                     u2* const java_fields_count_ptr,
 328                     TRAPS);
 329 
 330   // Method parsing
 331   Method* parse_method(const ClassFileStream* const cfs,
 332                        bool is_interface,
 333                        bool is_value_type,
 334                        const ConstantPool* cp,
 335                        AccessFlags* const promoted_flags,
 336                        TRAPS);
 337 
 338   void parse_methods(const ClassFileStream* const cfs,
 339                      bool is_interface,
 340                      bool is_value_type,
 341                      AccessFlags* const promoted_flags,
 342                      bool* const has_final_method,
 343                      bool* const declares_nonstatic_concrete_methods,
 344                      TRAPS);
 345 
 346   const unsafe_u2* parse_exception_table(const ClassFileStream* const stream,
 347                                          u4 code_length,
 348                                          u4 exception_table_length,
 349                                          TRAPS);
 350 
 351   void parse_linenumber_table(u4 code_attribute_length,
 352                               u4 code_length,
 353                               CompressedLineNumberWriteStream**const write_stream,
 354                               TRAPS);
 355 
 356   const unsafe_u2* parse_localvariable_table(const ClassFileStream* const cfs,
 357                                              u4 code_length,
 358                                              u2 max_locals,
 359                                              u4 code_attribute_length,
 360                                              u2* const localvariable_table_length,
 361                                              bool isLVTT,
 362                                              TRAPS);
 363 
 364   const unsafe_u2* parse_checked_exceptions(const ClassFileStream* const cfs,
 365                                             u2* const checked_exceptions_length,
 366                                             u4 method_attribute_length,
 367                                             TRAPS);
 368 
 369   // Classfile attribute parsing
 370   u2 parse_generic_signature_attribute(const ClassFileStream* const cfs, TRAPS);
 371   void parse_classfile_sourcefile_attribute(const ClassFileStream* const cfs, TRAPS);
 372   void parse_classfile_source_debug_extension_attribute(const ClassFileStream* const cfs,
 373                                                         int length,
 374                                                         TRAPS);
 375 
 376   u2   parse_classfile_inner_classes_attribute(const ClassFileStream* const cfs,
 377                                                const u1* const inner_classes_attribute_start,
 378                                                bool parsed_enclosingmethod_attribute,
 379                                                u2 enclosing_method_class_index,
 380                                                u2 enclosing_method_method_index,
 381                                                TRAPS);
 382 
 383   u2 parse_classfile_nest_members_attribute(const ClassFileStream* const cfs,
 384                                             const u1* const nest_members_attribute_start,
 385                                             TRAPS);
 386 
 387   void parse_classfile_attributes(const ClassFileStream* const cfs,
 388                                   ConstantPool* cp,
 389                                   ClassAnnotationCollector* parsed_annotations,
 390                                   TRAPS);
 391 
 392   void parse_classfile_synthetic_attribute(TRAPS);
 393   void parse_classfile_signature_attribute(const ClassFileStream* const cfs, TRAPS);
 394   void parse_classfile_bootstrap_methods_attribute(const ClassFileStream* const cfs,
 395                                                    ConstantPool* cp,
 396                                                    u4 attribute_length,
 397                                                    TRAPS);
 398 
 399   // Annotations handling
 400   AnnotationArray* assemble_annotations(const u1* const runtime_visible_annotations,
 401                                         int runtime_visible_annotations_length,
 402                                         const u1* const runtime_invisible_annotations,
 403                                         int runtime_invisible_annotations_length,
 404                                         TRAPS);
 405 
 406   void set_precomputed_flags(InstanceKlass* k, TRAPS);
 407 
 408   // Format checker methods
 409   void classfile_parse_error(const char* msg, TRAPS) const;
 410   void classfile_parse_error(const char* msg, int index, TRAPS) const;
 411   void classfile_parse_error(const char* msg, const char *name, TRAPS) const;
 412   void classfile_parse_error(const char* msg,
 413                              int index,
 414                              const char *name,
 415                              TRAPS) const;
 416   void classfile_parse_error(const char* msg,
 417                              const char* name,
 418                              const char* signature,
 419                              TRAPS) const;
 420 
 421   inline void guarantee_property(bool b, const char* msg, TRAPS) const {
 422     if (!b) { classfile_parse_error(msg, CHECK); }
 423   }
 424 
 425   void report_assert_property_failure(const char* msg, TRAPS) const PRODUCT_RETURN;
 426   void report_assert_property_failure(const char* msg, int index, TRAPS) const PRODUCT_RETURN;
 427 
 428   inline void assert_property(bool b, const char* msg, TRAPS) const {
 429 #ifdef ASSERT
 430     if (!b) {
 431       report_assert_property_failure(msg, THREAD);
 432     }
 433 #endif
 434   }
 435 
 436   inline void assert_property(bool b, const char* msg, int index, TRAPS) const {
 437 #ifdef ASSERT
 438     if (!b) {
 439       report_assert_property_failure(msg, index, THREAD);
 440     }
 441 #endif
 442   }
 443 
 444   inline void check_property(bool property,
 445                              const char* msg,
 446                              int index,
 447                              TRAPS) const {
 448     if (_need_verify) {
 449       guarantee_property(property, msg, index, CHECK);
 450     } else {
 451       assert_property(property, msg, index, CHECK);
 452     }
 453   }
 454 
 455   inline void check_property(bool property, const char* msg, TRAPS) const {
 456     if (_need_verify) {
 457       guarantee_property(property, msg, CHECK);
 458     } else {
 459       assert_property(property, msg, CHECK);
 460     }
 461   }
 462 
 463   inline void guarantee_property(bool b,
 464                                  const char* msg,
 465                                  int index,
 466                                  TRAPS) const {
 467     if (!b) { classfile_parse_error(msg, index, CHECK); }
 468   }
 469 
 470   inline void guarantee_property(bool b,
 471                                  const char* msg,
 472                                  const char *name,
 473                                  TRAPS) const {
 474     if (!b) { classfile_parse_error(msg, name, CHECK); }
 475   }
 476 
 477   inline void guarantee_property(bool b,
 478                                  const char* msg,
 479                                  int index,
 480                                  const char *name,
 481                                  TRAPS) const {
 482     if (!b) { classfile_parse_error(msg, index, name, CHECK); }
 483   }
 484 
 485   void throwIllegalSignature(const char* type,
 486                              const Symbol* name,
 487                              const Symbol* sig,
 488                              TRAPS) const;
 489 
 490   void throwValueTypeLimitation(THREAD_AND_LOCATION_DECL,
 491                                 const char* msg,
 492                                 const Symbol* name = NULL,
 493                                 const Symbol* sig  = NULL) const;
 494 
 495   void verify_constantvalue(const ConstantPool* const cp,
 496                             int constantvalue_index,
 497                             int signature_index,
 498                             TRAPS) const;
 499 
 500   void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) const;
 501   void verify_legal_class_name(const Symbol* name, TRAPS) const;
 502   void verify_legal_field_name(const Symbol* name, TRAPS) const;
 503   void verify_legal_method_name(const Symbol* name, TRAPS) const;
 504 
 505   void verify_legal_field_signature(const Symbol* fieldname,
 506                                     const Symbol* signature,
 507                                     TRAPS) const;
 508   int  verify_legal_method_signature(const Symbol* methodname,
 509                                      const Symbol* signature,
 510                                      TRAPS) const;
 511 
 512   void verify_legal_class_modifiers(jint flags, TRAPS) const;
 513   void verify_legal_field_modifiers(jint flags,
 514                                     bool is_interface,
 515                                     bool is_value_type,
 516                                     TRAPS) const;
 517   void verify_legal_method_modifiers(jint flags,
 518                                      bool is_interface,
 519                                      bool is_value_type,
 520                                      const Symbol* name,
 521                                      TRAPS) const;
 522 
 523   const char* skip_over_field_signature(const char* signature,
 524                                         bool void_ok,
 525                                         unsigned int length,
 526                                         TRAPS) const;
 527 
 528   bool has_cp_patch_at(int index) const {
 529     assert(index >= 0, "oob");
 530     return (_cp_patches != NULL
 531             && index < _cp_patches->length()
 532             && _cp_patches->adr_at(index)->not_null());
 533   }
 534 
 535   Handle cp_patch_at(int index) const {
 536     assert(has_cp_patch_at(index), "oob");
 537     return _cp_patches->at(index);
 538   }
 539 
 540   Handle clear_cp_patch_at(int index);
 541 
 542   void patch_class(ConstantPool* cp, int class_index, Klass* k, Symbol* name);
 543   void patch_constant_pool(ConstantPool* cp,
 544                            int index,
 545                            Handle patch,
 546                            TRAPS);
 547 
 548   // Wrapper for constantTag.is_klass_[or_]reference.
 549   // In older versions of the VM, Klass*s cannot sneak into early phases of
 550   // constant pool construction, but in later versions they can.
 551   // %%% Let's phase out the old is_klass_reference.
 552   bool valid_klass_reference_at(int index) const {
 553     return _cp->is_within_bounds(index) &&
 554              _cp->tag_at(index).is_klass_or_reference();
 555   }
 556 
 557   // Checks that the cpool index is in range and is a utf8
 558   bool valid_symbol_at(int cpool_index) const {
 559     return _cp->is_within_bounds(cpool_index) &&
 560              _cp->tag_at(cpool_index).is_utf8();
 561   }
 562 
 563   void copy_localvariable_table(const ConstMethod* cm,
 564                                 int lvt_cnt,
 565                                 u2* const localvariable_table_length,
 566                                 const unsafe_u2** const localvariable_table_start,
 567                                 int lvtt_cnt,
 568                                 u2* const localvariable_type_table_length,
 569                                 const unsafe_u2** const localvariable_type_table_start,
 570                                 TRAPS);
 571 
 572   void copy_method_annotations(ConstMethod* cm,
 573                                const u1* runtime_visible_annotations,
 574                                int runtime_visible_annotations_length,
 575                                const u1* runtime_invisible_annotations,
 576                                int runtime_invisible_annotations_length,
 577                                const u1* runtime_visible_parameter_annotations,
 578                                int runtime_visible_parameter_annotations_length,
 579                                const u1* runtime_invisible_parameter_annotations,
 580                                int runtime_invisible_parameter_annotations_length,
 581                                const u1* runtime_visible_type_annotations,
 582                                int runtime_visible_type_annotations_length,
 583                                const u1* runtime_invisible_type_annotations,
 584                                int runtime_invisible_type_annotations_length,
 585                                const u1* annotation_default,
 586                                int annotation_default_length,
 587                                TRAPS);
 588 
 589   // lays out fields in class and returns the total oopmap count
 590   void layout_fields(ConstantPool* cp,
 591                      const FieldAllocationCount* fac,
 592                      const ClassAnnotationCollector* parsed_annotations,
 593                      FieldLayoutInfo* info,
 594                      TRAPS);
 595 
 596    void update_class_name(Symbol* new_name);
 597 
 598   // Check if the class file supports value types
 599   bool supports_value_types() const;
 600 
 601  public:
 602   ClassFileParser(ClassFileStream* stream,
 603                   Symbol* name,
 604                   ClassLoaderData* loader_data,
 605                   Handle protection_domain,
 606                   const InstanceKlass* unsafe_anonymous_host,
 607                   GrowableArray<Handle>* cp_patches,
 608                   Publicity pub_level,
 609                   TRAPS);
 610 
 611   ~ClassFileParser();
 612 
 613   InstanceKlass* create_instance_klass(bool cf_changed_in_CFLH, TRAPS);
 614 
 615   const ClassFileStream* clone_stream() const;
 616 
 617   void set_klass_to_deallocate(InstanceKlass* klass);
 618 
 619   int static_field_size() const;
 620   int total_oop_map_count() const;
 621   jint layout_size() const;
 622 
 623   int vtable_size() const { return _vtable_size; }
 624   int itable_size() const { return _itable_size; }
 625 
 626   u2 this_class_index() const { return _this_class_index; }
 627 
 628   bool is_unsafe_anonymous() const { return _unsafe_anonymous_host != NULL; }
 629   bool is_interface() const { return _access_flags.is_interface(); }
 630   bool is_value_type() const { return _access_flags.is_value_type(); }
 631   bool is_value_capable_class() const;
 632   bool has_flattenable_fields() const { return _has_flattenable_fields; }
 633 
 634   u2 java_fields_count() const { return _java_fields_count; }
 635 
 636   const InstanceKlass* unsafe_anonymous_host() const { return _unsafe_anonymous_host; }
 637   const GrowableArray<Handle>* cp_patches() const { return _cp_patches; }
 638   ClassLoaderData* loader_data() const { return _loader_data; }
 639   const Symbol* class_name() const { return _class_name; }
 640   const InstanceKlass* super_klass() const { return _super_klass; }
 641 
 642   ReferenceType reference_type() const { return _rt; }
 643   AccessFlags access_flags() const { return _access_flags; }
 644 
 645   bool is_internal() const { return INTERNAL == _pub_level; }
 646 
 647   static bool verify_unqualified_name(const char* name, unsigned int length, int type);
 648 
 649 #ifdef ASSERT
 650   static bool is_internal_format(Symbol* class_name);
 651 #endif
 652 
 653 };
 654 
 655 #endif // SHARE_CLASSFILE_CLASSFILEPARSER_HPP
--- EOF ---