src/vm/resolve.c

   1 /* src/vm/resolve.c - resolving classes/interfaces/fields/methods
   2
   3    Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
   4    R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
   5    C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
   6    Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  23    02111-1307, USA.
  24
  25    Contact: cacao@complang.tuwien.ac.at
  26
  27    Authors: Edwin Steiner
  28
  29    Changes:
  30
  31    $Id: resolve.c 2217 2005-04-05 10:26:33Z edwin $
  32
  33 */
  34
  35
  36 #include <assert.h>
  37
  38 #include "mm/memory.h"
  39 #include "vm/resolve.h"
  40 #include "vm/access.h"
  41 #include "vm/classcache.h"
  42 #include "vm/exceptions.h"
  43 #include "vm/loader.h"
  44 #include "vm/linker.h"
  45 #include "vm/classcache.h"
  46 #include "vm/descriptor.h"
  47 #include "vm/jit/jit.h"
  48 #include "vm/jit/verify/typeinfo.h"
  49
  50
  51 /******************************************************************************/
  52 /* DEBUG HELPERS                                                              */
  53 /******************************************************************************/
  54
  55 /*#define RESOLVE_VERBOSE*/
  56
  57 #ifndef NDEBUG
  58 #define RESOLVE_DEBUG
  59 #endif
  60
  61 #ifdef RESOLVE_DEBUG
  62 #define RESOLVE_ASSERT(cond)  assert(cond)
  63 #else
  64 #define RESOLVE_ASSERT(cond)
  65 #endif
  66
  67 /******************************************************************************/
  68 /* CLASS RESOLUTION                                                           */
  69 /******************************************************************************/
  70
  71 /* resolve symbolic class reference -- see resolve.h */
  72 bool
  73 resolve_class_from_name(classinfo *referer,methodinfo *refmethod,
  74                           utf *classname,
  75                           resolve_mode_t mode,
  76                           classinfo **result)
  77 {
  78         classinfo *cls = NULL;
  79         char *utf_ptr;
  80         int len;
  81
  82         RESOLVE_ASSERT(result);
  83         RESOLVE_ASSERT(referer);
  84         RESOLVE_ASSERT(classname);
  85         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
  86
  87         *result = NULL;
  88
  89 #ifdef RESOLVE_VERBOSE
  90         fprintf(stderr,"resolve_class_from_name(");
  91         utf_fprint(stderr,referer->name);
  92         fprintf(stderr,",");
  93         utf_fprint(stderr,classname);
  94         fprintf(stderr,")\n");
  95 #endif
  96
  97         /* lookup if this class has already been loaded */
  98         cls = classcache_lookup(referer->classloader,classname);
  99
 100 #ifdef RESOLVE_VERBOSE
 101         fprintf(stderr,"    lookup result: %p\n",(void*)cls);
 102 #endif
 103
 104         if (!cls) {
 105                 /* resolve array types */
 106                 if (classname->text[0] == '[') {
 107                         utf_ptr = classname->text + 1;
 108                         len = classname->blength - 1;
 109                         /* classname is an array type name */
 110                         switch (*utf_ptr) {
 111                                 case 'L':
 112                                         utf_ptr++;
 113                                         len -= 2;
 114                                         /* FALLTHROUGH */
 115                                 case '[':
 116                                         /* the component type is a reference type */
 117                                         /* resolve the component type */
 118                                         if (!resolve_class_from_name(referer,refmethod,
 119                                                                            utf_new(utf_ptr,len),
 120                                                                            mode,&cls))
 121                                                 return false; /* exception */
 122                                         if (!cls) {
 123                                                 RESOLVE_ASSERT(mode == resolveLazy);
 124                                                 return true; /* be lazy */
 125                                         }
 126                                         /* create the array class */
 127                                         cls = class_array_of(cls,false);
 128                                         if (!cls)
 129                                                 return false; /* exception */
 130                         }
 131                 }
 132                 else {
 133                         /* the class has not been loaded, yet */
 134                         if (mode == resolveLazy)
 135                                 return true; /* be lazy */
 136                 }
 137
 138 #ifdef RESOLVE_VERBOSE
 139                 fprintf(stderr,"    loading...\n");
 140 #endif
 141
 142                 /* load the class */
 143                 if (!cls) {
 144                         if (!load_class_from_classloader(classname,referer->classloader,&cls))
 145                                 return false; /* exception */
 146                 }
 147         }
 148
 149         /* the class is now loaded */
 150         RESOLVE_ASSERT(cls);
 151         RESOLVE_ASSERT(cls->loaded);
 152
 153 #ifdef RESOLVE_VERBOSE
 154         fprintf(stderr,"    checking access rights...\n");
 155 #endif
 156
 157         /* check access rights of referer to refered class */
 158         if (!is_accessible_class(referer,cls)) {
 159                 *exceptionptr = new_exception_message(string_java_lang_IllegalAccessException,
 160                                 "class is not accessible XXX add message");
 161                 return false; /* exception */
 162         }
 163
 164         /* resolution succeeds */
 165 #ifdef RESOLVE_VERBOSE
 166         fprintf(stderr,"    success.\n");
 167 #endif
 168         *result = cls;
 169         return true;
 170 }
 171
 172 bool
 173 resolve_classref(methodinfo *refmethod,
 174                                  constant_classref *ref,
 175                                  resolve_mode_t mode,
 176                              bool link,
 177                                  classinfo **result)
 178 {
 179         return resolve_classref_or_classinfo(refmethod,CLASSREF_OR_CLASSINFO(ref),mode,link,result);
 180 }
 181
 182 bool
 183 resolve_classref_or_classinfo(methodinfo *refmethod,
 184                                                           classref_or_classinfo cls,
 185                                                           resolve_mode_t mode,
 186                                                           bool link,
 187                                                           classinfo **result)
 188 {
 189         classinfo *c;
 190
 191         RESOLVE_ASSERT(cls.any);
 192         RESOLVE_ASSERT(mode == resolveEager || mode == resolveLazy);
 193         RESOLVE_ASSERT(result);
 194
 195 #ifdef RESOLVE_VERBOSE
 196         fprintf(stderr,"resolve_classref_or_classinfo(");
 197         utf_fprint(stderr,(IS_CLASSREF(cls)) ? cls.ref->name : cls.cls->name);
 198         fprintf(stderr,",%i,%i)\n",mode,link);
 199 #endif
 200
 201         *result = NULL;
 202
 203         if (IS_CLASSREF(cls)) {
 204                 /* we must resolve this reference */
 205                 if (!resolve_class_from_name(cls.ref->referer,refmethod,cls.ref->name,
 206                                                                         mode,&c))
 207                         return false; /* exception */
 208         }
 209         else {
 210                 /* cls has already been resolved */
 211                 c = cls.cls;
 212                 RESOLVE_ASSERT(c->loaded);
 213         }
 214         RESOLVE_ASSERT(c || (mode == resolveLazy));
 215
 216         if (!c)
 217                 return true; /* be lazy */
 218
 219         RESOLVE_ASSERT(c);
 220         RESOLVE_ASSERT(c->loaded);
 221
 222         if (link) {
 223                 if (!c->linked)
 224                         if (!link_class(c))
 225                                 return false; /* exception */
 226                 RESOLVE_ASSERT(c->linked);
 227         }
 228
 229         /* succeeded */
 230         *result = c;
 231         return true;
 232 }
 233
 234 bool
 235 resolve_class_from_typedesc(typedesc *d,bool link,classinfo **result)
 236 {
 237         classinfo *cls;
 238
 239         RESOLVE_ASSERT(d);
 240         RESOLVE_ASSERT(result);
 241
 242         *result = NULL;
 243
 244 #ifdef RESOLVE_VERBOSE
 245         fprintf(stderr,"resolve_class_from_typedesc(");
 246         descriptor_debug_print_typedesc(stderr,d);
 247         fprintf(stderr,",%i)\n",link);
 248 #endif
 249
 250         if (d->classref) {
 251                 /* a reference type */
 252                 if (!resolve_classref_or_classinfo(NULL,CLASSREF_OR_CLASSINFO(d->classref),
 253                                                                                    resolveEager,link,&cls))
 254                         return false; /* exception */
 255         }
 256         else {
 257                 /* a primitive type */
 258                 cls = primitivetype_table[d->decltype].class_primitive;
 259                 RESOLVE_ASSERT(cls->loaded);
 260                 if (!cls->linked)
 261                         if (!link_class(cls))
 262                                 return false; /* exception */
 263         }
 264         RESOLVE_ASSERT(cls);
 265         RESOLVE_ASSERT(cls->loaded);
 266         RESOLVE_ASSERT(!link || cls->linked);
 267
 268 #ifdef RESOLVE_VERBOSE
 269         fprintf(stderr,"    result = ");utf_fprint(stderr,cls->name);fprintf(stderr,"\n");
 270 #endif
 271
 272         *result = cls;
 273         return true;
 274 }
 275
 276 /******************************************************************************/
 277 /* SUBTYPE SET CHECKS                                                         */
 278 /******************************************************************************/
 279
 280 /* for documentation see resolve.h */
 281 bool
 282 resolve_and_check_subtype_set(classinfo *referer,methodinfo *refmethod,
 283                                                           unresolved_subtype_set *ref,
 284                                                           classref_or_classinfo typeref,
 285                                                           bool reversed,
 286                                                           resolve_mode_t mode,
 287                                                           resolve_err_t error,
 288                                                           bool *checked)
 289 {
 290         classref_or_classinfo *setp;
 291         classinfo *result;
 292         classinfo *type;
 293         typeinfo resultti;
 294         typeinfo typeti;
 295
 296         RESOLVE_ASSERT(referer);
 297         RESOLVE_ASSERT(ref);
 298         RESOLVE_ASSERT(typeref.any);
 299         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
 300         RESOLVE_ASSERT(error == resolveLinkageError || error == resolveIllegalAccessError);
 301
 302 #ifdef RESOLVE_VERBOSE
 303         fprintf(stderr,"resolve_and_check_subtype_set\n");
 304         unresolved_subtype_set_debug_dump(ref,stderr);
 305         if (IS_CLASSREF(typeref)) {
 306                 fprintf(stderr,"    ref: ");utf_fprint(stderr,typeref.ref->name);
 307         }
 308         else {
 309                 fprintf(stderr,"    cls: ");utf_fprint(stderr,typeref.cls->name);
 310         }
 311         fprintf(stderr,"\n");
 312 #endif
 313
 314         setp = ref->subtyperefs;
 315
 316         /* an empty set of tests always succeeds */
 317         if (!setp || !setp->any) {
 318                 if (checked)
 319                         *checked = true;
 320                 return true;
 321         }
 322
 323         if (checked)
 324                 *checked = false;
 325
 326         /* first resolve the type if necessary */
 327         if (!resolve_classref_or_classinfo(refmethod,typeref,mode,true,&type))
 328                 return false; /* exception */
 329         if (!type)
 330                 return true; /* be lazy */
 331
 332         RESOLVE_ASSERT(type);
 333         RESOLVE_ASSERT(type->loaded);
 334         RESOLVE_ASSERT(type->linked);
 335         TYPEINFO_INIT_CLASSINFO(typeti,type);
 336
 337         for (; setp->any; ++setp) {
 338                 /* first resolve the set member if necessary */
 339                 if (!resolve_classref_or_classinfo(refmethod,*setp,mode,true,&result))
 340                         return false; /* exception */
 341                 if (!result)
 342                         return true; /* be lazy */
 343
 344                 RESOLVE_ASSERT(result);
 345                 RESOLVE_ASSERT(result->loaded);
 346                 RESOLVE_ASSERT(result->linked);
 347
 348 #ifdef RESOLVE_VERBOSE
 349                 fprintf(stderr,"performing subclass test:\n");
 350                 fprintf(stderr,"    ");utf_fprint(stderr,result->name);fputc('\n',stderr);
 351                 fprintf(stderr,"  must be a %s of\n",(reversed) ? "superclass" : "subclass");
 352                 fprintf(stderr,"    ");utf_fprint(stderr,type->name);fputc('\n',stderr);
 353 #endif
 354
 355                 /* now check the subtype relationship */
 356                 TYPEINFO_INIT_CLASSINFO(resultti,result);
 357                 if (reversed) {
 358                         /* we must test against `true` because `MAYBE` is also != 0 */
 359                         if (true != typeinfo_is_assignable_to_class(&typeti,CLASSREF_OR_CLASSINFO(result))) {
 360 #ifdef RESOLVE_VERBOSE
 361                                 fprintf(stderr,"reversed subclass test failed\n");
 362 #endif
 363                                 goto throw_error;
 364                         }
 365                 }
 366                 else {
 367                         /* we must test against `true` because `MAYBE` is also != 0 */
 368                         if (true != typeinfo_is_assignable_to_class(&resultti,CLASSREF_OR_CLASSINFO(type))) {
 369 #ifdef RESOLVE_VERBOSE
 370                                 fprintf(stderr,"subclass test failed\n");
 371 #endif
 372                                 goto throw_error;
 373                         }
 374                 }
 375         }
 376
 377         /* check succeeds */
 378         if (checked)
 379                 *checked = true;
 380         return true;
 381
 382 throw_error:
 383         if (error == resolveIllegalAccessError)
 384                 *exceptionptr = new_exception_message(string_java_lang_IllegalAccessException,
 385                                 "illegal access to protected member XXX add message");
 386         else
 387                 *exceptionptr = new_exception_message(string_java_lang_LinkageError,
 388                                 "subtype constraint violated XXX add message");
 389         return false; /* exception */
 390 }
 391
 392 /******************************************************************************/
 393 /* CLASS RESOLUTION                                                           */
 394 /******************************************************************************/
 395
 396 /* for documentation see resolve.h */
 397 bool
 398 resolve_class(unresolved_class *ref,
 399                           resolve_mode_t mode,
 400                           classinfo **result)
 401 {
 402         classinfo *cls;
 403         bool checked;
 404
 405         RESOLVE_ASSERT(ref);
 406         RESOLVE_ASSERT(result);
 407         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
 408
 409         *result = NULL;
 410
 411 #ifdef RESOLVE_VERBOSE
 412         unresolved_class_debug_dump(ref,stderr);
 413 #endif
 414
 415         /* first we must resolve the class */
 416         if (!resolve_classref(ref->referermethod,
 417                                               ref->classref,mode,true,&cls))
 418         {
 419                 /* the class reference could not be resolved */
 420                 return false; /* exception */
 421         }
 422         if (!cls)
 423                 return true; /* be lazy */
 424
 425         RESOLVE_ASSERT(cls);
 426         RESOLVE_ASSERT(cls->loaded && cls->linked);
 427
 428         /* now we check the subtype constraints */
 429         if (!resolve_and_check_subtype_set(ref->classref->referer,ref->referermethod,
 430                                                                            &(ref->subtypeconstraints),
 431                                                                            CLASSREF_OR_CLASSINFO(cls),
 432                                                                            false,
 433                                                                            mode,
 434                                                                            resolveLinkageError,&checked))
 435         {
 436                 return false; /* exception */
 437         }
 438         if (!checked)
 439                 return true; /* be lazy */
 440
 441         /* succeed */
 442         *result = cls;
 443         return true;
 444 }
 445
 446 /******************************************************************************/
 447 /* FIELD RESOLUTION                                                           */
 448 /******************************************************************************/
 449
 450 /* for documentation see resolve.h */
 451 bool
 452 resolve_field(unresolved_field *ref,
 453                           resolve_mode_t mode,
 454                           fieldinfo **result)
 455 {
 456         classinfo *referer;
 457         classinfo *container;
 458         classinfo *declarer;
 459         constant_classref *fieldtyperef;
 460         fieldinfo *fi;
 461         bool checked;
 462
 463         RESOLVE_ASSERT(ref);
 464         RESOLVE_ASSERT(result);
 465         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
 466
 467         *result = NULL;
 468
 469 #ifdef RESOLVE_VERBOSE
 470         unresolved_field_debug_dump(ref,stderr);
 471 #endif
 472
 473         /* the class containing the reference */
 474         referer = ref->fieldref->classref->referer;
 475         RESOLVE_ASSERT(referer);
 476
 477         /* first we must resolve the class containg the field */
 478         if (!resolve_class_from_name(referer,ref->referermethod,
 479                                            ref->fieldref->classref->name,mode,&container))
 480         {
 481                 /* the class reference could not be resolved */
 482                 return false; /* exception */
 483         }
 484         if (!container)
 485                 return true; /* be lazy */
 486
 487         RESOLVE_ASSERT(container);
 488         RESOLVE_ASSERT(container->loaded && container->linked);
 489
 490         /* now we must find the declaration of the field in `container`
 491          * or one of its superclasses */
 492
 493 #ifdef RESOLVE_VERBOSE
 494                 fprintf(stderr,"    resolving field in class...\n");
 495 #endif
 496
 497         fi = class_resolvefield(container,
 498                                                         ref->fieldref->name,ref->fieldref->descriptor,
 499                                                         referer,true);
 500         if (!fi)
 501                 return false; /* exception */
 502
 503         /* { the field reference has been resolved } */
 504         declarer = fi->class;
 505         RESOLVE_ASSERT(declarer);
 506         RESOLVE_ASSERT(declarer->loaded && declarer->linked);
 507
 508 #ifdef RESOLVE_VERBOSE
 509                 fprintf(stderr,"    checking static...\n");
 510 #endif
 511
 512         /* check static */
 513         if (((fi->flags & ACC_STATIC) != 0) != ((ref->flags & RESOLVE_STATIC) != 0)) {
 514                 /* a static field is accessed via an instance, or vice versa */
 515                 *exceptionptr = new_exception_message(string_java_lang_IncompatibleClassChangeError,
 516                                 (fi->flags & ACC_STATIC) ? "static field accessed via instance"
 517                                                          : "instance field accessed without instance");
 518                 return false; /* exception */
 519         }
 520
 521         /* for non-static accesses we have to check the constraints on the instance type */
 522         if ((ref->flags & RESOLVE_STATIC) == 0) {
 523 #ifdef RESOLVE_VERBOSE
 524                 fprintf(stderr,"    checking instance types...\n");
 525 #endif
 526
 527                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 528                                                                                    &(ref->instancetypes),
 529                                                                                    CLASSREF_OR_CLASSINFO(container),
 530                                                                                    false,
 531                                                                                    mode,
 532                                                                                    resolveLinkageError,&checked))
 533                 {
 534                         return false; /* exception */
 535                 }
 536                 if (!checked)
 537                         return true; /* be lazy */
 538         }
 539
 540         fieldtyperef = ref->fieldref->parseddesc.fd->classref;
 541
 542         /* for PUT* instructions we have to check the constraints on the value type */
 543         if (((ref->flags & RESOLVE_PUTFIELD) != 0) && fi->type == TYPE_ADR) {
 544                 RESOLVE_ASSERT(fieldtyperef);
 545                 if (!SUBTYPESET_IS_EMPTY(ref->valueconstraints)) {
 546                         /* check subtype constraints */
 547                         if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 548                                                                                            &(ref->valueconstraints),
 549                                                                                            CLASSREF_OR_CLASSINFO(fieldtyperef),
 550                                                                                            false,
 551                                                                                            mode,
 552                                                                                            resolveLinkageError,&checked))
 553                         {
 554                                 return false; /* exception */
 555                         }
 556                         if (!checked)
 557                                 return true; /* be lazy */
 558                 }
 559         }
 560
 561         /* check access rights */
 562         if (!is_accessible_member(referer,declarer,fi->flags)) {
 563                 *exceptionptr = new_exception_message(string_java_lang_IllegalAccessException,
 564                                 "field is not accessible XXX add message");
 565                 return false; /* exception */
 566         }
 567
 568         /* check protected access */
 569         if (((fi->flags & ACC_PROTECTED) != 0) && !SAME_PACKAGE(declarer,referer)) {
 570                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 571                                                                                    &(ref->instancetypes),
 572                                                                                    CLASSREF_OR_CLASSINFO(referer),
 573                                                                                    false,
 574                                                                                    mode,
 575                                                                                    resolveIllegalAccessError,&checked))
 576                 {
 577                         return false; /* exception */
 578                 }
 579                 if (!checked)
 580                         return true; /* be lazy */
 581         }
 582
 583         /* impose loading constraint on field type */
 584         if (fi->type == TYPE_ADR) {
 585                 RESOLVE_ASSERT(fieldtyperef);
 586                 if (!classcache_add_constraint(declarer->classloader,referer->classloader,
 587                                                                            fieldtyperef->name))
 588                         return false; /* exception */
 589         }
 590
 591         /* succeed */
 592         *result = fi;
 593         return true;
 594 }
 595
 596 /******************************************************************************/
 597 /* METHOD RESOLUTION                                                          */
 598 /******************************************************************************/
 599
 600 /* for documentation see resolve.h */
 601 bool
 602 resolve_method(unresolved_method *ref,
 603                            resolve_mode_t mode,
 604                            methodinfo **result)
 605 {
 606         classinfo *referer;
 607         classinfo *container;
 608         classinfo *declarer;
 609         methodinfo *mi;
 610         typedesc *paramtypes;
 611         int instancecount;
 612         int i;
 613         bool checked;
 614
 615         RESOLVE_ASSERT(ref);
 616         RESOLVE_ASSERT(result);
 617         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
 618
 619 #ifdef RESOLVE_VERBOSE
 620         unresolved_method_debug_dump(ref,stderr);
 621 #endif
 622
 623         *result = NULL;
 624
 625         /* the class containing the reference */
 626         referer = ref->methodref->classref->referer;
 627         RESOLVE_ASSERT(referer);
 628
 629         /* first we must resolve the class containg the method */
 630         if (!resolve_class_from_name(referer,ref->referermethod,
 631                                            ref->methodref->classref->name,mode,&container))
 632         {
 633                 /* the class reference could not be resolved */
 634                 return false; /* exception */
 635         }
 636         if (!container)
 637                 return true; /* be lazy */
 638
 639         RESOLVE_ASSERT(container);
 640
 641         /* now we must find the declaration of the method in `container`
 642          * or one of its superclasses */
 643
 644         if ((container->flags & ACC_INTERFACE) != 0) {
 645                 mi = class_resolveinterfacemethod(container,
 646                                                                               ref->methodref->name,ref->methodref->descriptor,
 647                                                                               referer,true);
 648         }
 649         else {
 650                 mi = class_resolveclassmethod(container,
 651                                                                           ref->methodref->name,ref->methodref->descriptor,
 652                                                                           referer,true);
 653         }
 654         if (!mi)
 655                 return false; /* exception */ /* XXX set exceptionptr? */
 656
 657         /* { the method reference has been resolved } */
 658         declarer = mi->class;
 659         RESOLVE_ASSERT(declarer);
 660
 661         /* check static */
 662         if (((mi->flags & ACC_STATIC) != 0) != ((ref->flags & RESOLVE_STATIC) != 0)) {
 663                 /* a static method is accessed via an instance, or vice versa */
 664                 *exceptionptr = new_exception_message(string_java_lang_IncompatibleClassChangeError,
 665                                 (mi->flags & ACC_STATIC) ? "static method called via instance"
 666                                                          : "instance method called without instance");
 667                 return false; /* exception */
 668         }
 669
 670         /* for non-static methods we have to check the constraints on the instance type */
 671         if ((ref->flags & RESOLVE_STATIC) == 0) {
 672                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 673                                                                                    &(ref->instancetypes),
 674                                                                                    CLASSREF_OR_CLASSINFO(container),
 675                                                                                    false,
 676                                                                                    mode,
 677                                                                                    resolveLinkageError,&checked))
 678                 {
 679                         return false; /* exception */
 680                 }
 681                 if (!checked)
 682                         return true; /* be lazy */
 683                 instancecount = 1;
 684         }
 685         else {
 686                 instancecount = 0;
 687         }
 688
 689         /* check subtype constraints for TYPE_ADR parameters */
 690         RESOLVE_ASSERT((mi->paramcount-instancecount) == ref->methodref->parseddesc.md->paramcount);
 691         paramtypes = ref->methodref->parseddesc.md->paramtypes;
 692
 693         for (i=0; i<(mi->paramcount-instancecount); ++i) {
 694                 if (mi->paramtypes[instancecount + i] == TYPE_ADR) {
 695                         RESOLVE_ASSERT(paramtypes[i].type == TYPE_ADR);
 696                         if (ref->paramconstraints) {
 697                                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 698                                                         ref->paramconstraints + i,
 699                                                         CLASSREF_OR_CLASSINFO(paramtypes[i].classref),
 700                                                         false,
 701                                                         mode,
 702                                                         resolveLinkageError,&checked))
 703                                 {
 704                                         return false; /* exception */
 705                                 }
 706                                 if (!checked)
 707                                         return true; /* be lazy */
 708                         }
 709                 }
 710         }
 711
 712         /* check access rights */
 713         if (!is_accessible_member(referer,declarer,mi->flags)) {
 714                 *exceptionptr = new_exception_message(string_java_lang_IllegalAccessException,
 715                                 "method is not accessible XXX add message");
 716                 return false; /* exception */
 717         }
 718
 719         /* check protected access */
 720         if (((mi->flags & ACC_PROTECTED) != 0) && !SAME_PACKAGE(declarer,referer)) {
 721                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 722                                                                                    &(ref->instancetypes),
 723                                                                                    CLASSREF_OR_CLASSINFO(referer),
 724                                                                                    false,
 725                                                                                    mode,
 726                                                                                    resolveIllegalAccessError,&checked))
 727                 {
 728                         return false; /* exception */
 729                 }
 730                 if (!checked)
 731                         return true; /* be lazy */
 732         }
 733
 734         /* impose loading constraints on parameters (including instance) */
 735         paramtypes = ref->methodref->parseddesc.md->paramtypes - instancecount;
 736         for (i=0; i<mi->paramcount; ++i) {
 737                 if (mi->paramtypes[i] == TYPE_ADR) {
 738                         utf *name;
 739
 740                         if (i < instancecount)
 741                                 name = container->name; /* XXX should this be declarer->name? */
 742                         else
 743                                 name = paramtypes[i].classref->name;
 744
 745                         if (!classcache_add_constraint(referer->classloader,declarer->classloader,name))
 746                                 return false; /* exception */
 747                 }
 748         }
 749
 750         /* impose loading constraing onto return type */
 751         if (ref->methodref->parseddesc.md->returntype.type == TYPE_ADR) {
 752                 if (!classcache_add_constraint(referer->classloader,declarer->classloader,
 753                                 ref->methodref->parseddesc.md->returntype.classref->name))
 754                         return false; /* exception */
 755         }
 756
 757         /* succeed */
 758         *result = mi;
 759         return true;
 760 }
 761
 762 /******************************************************************************/
 763 /* CREATING THE DATA STRUCTURES                                               */
 764 /******************************************************************************/
 765
 766 static bool
 767 unresolved_subtype_set_from_typeinfo(classinfo *referer,methodinfo *refmethod,
 768                 unresolved_subtype_set *stset,typeinfo *tinfo,
 769                 constant_classref *declaredtype)
 770 {
 771         int count;
 772         int i;
 773
 774         RESOLVE_ASSERT(stset);
 775         RESOLVE_ASSERT(tinfo);
 776
 777 #ifdef RESOLVE_VERBOSE
 778         fprintf(stderr,"unresolved_subtype_set_from_typeinfo\n");
 779 #ifdef TYPEINFO_DEBUG
 780         /*typeinfo_print(stderr,tinfo,4);*/
 781         fprintf(stderr,"\n");
 782 #endif
 783         fprintf(stderr,"    declared type:");utf_fprint(stderr,declaredtype->name);
 784         fprintf(stderr,"\n");
 785 #endif
 786
 787         if (TYPEINFO_IS_PRIMITIVE(*tinfo)) {
 788                 *exceptionptr = new_verifyerror(refmethod,
 789                                 "Invalid use of returnAddress");
 790                 return false;
 791         }
 792
 793         if (TYPEINFO_IS_NEWOBJECT(*tinfo)) {
 794                 *exceptionptr = new_verifyerror(refmethod,
 795                                 "Invalid use of uninitialized object");
 796                 return false;
 797         }
 798
 799         /* the nulltype is always assignable (XXX for reversed?) */
 800         if (TYPEINFO_IS_NULLTYPE(*tinfo))
 801                 goto empty_set;
 802
 803         /* every type is assignable to (BOOTSTRAP)java.lang.Object */
 804         if (declaredtype->name == utf_java_lang_Object
 805                         && referer->classloader == NULL)
 806         {
 807                 goto empty_set;
 808         }
 809
 810         if (tinfo->merged) {
 811                 count = tinfo->merged->count;
 812                 stset->subtyperefs = MNEW(classref_or_classinfo,count + 1);
 813                 for (i=0; i<count; ++i) {
 814                         stset->subtyperefs[i] = tinfo->merged->list[i];
 815                 }
 816                 stset->subtyperefs[count].any = NULL; /* terminate */
 817         }
 818         else {
 819                 if ((IS_CLASSREF(tinfo->typeclass)
 820                                         ? tinfo->typeclass.ref->name
 821                                         : tinfo->typeclass.cls->name) == declaredtype->name)
 822                 {
 823                         goto empty_set;
 824                 }
 825                 else {
 826                         stset->subtyperefs = MNEW(classref_or_classinfo,1 + 1);
 827                         stset->subtyperefs[0] = tinfo->typeclass;
 828                         stset->subtyperefs[1].any = NULL; /* terminate */
 829                 }
 830         }
 831
 832         return true;
 833
 834 empty_set:
 835         UNRESOLVED_SUBTYPE_SET_EMTPY(*stset);
 836         return true;
 837 }
 838
 839 unresolved_class *
 840 create_unresolved_class(methodinfo *refmethod,
 841                                                 constant_classref *classref,
 842                                                 typeinfo *valuetype)
 843 {
 844         unresolved_class *ref;
 845
 846         RESOLVE_ASSERT(ref);
 847
 848 #ifdef RESOLVE_VERBOSE
 849         fprintf(stderr,"create_unresolved_class\n");
 850         fprintf(stderr,"    referer: ");utf_fprint(stderr,classref->referer->name);fputc('\n',stderr);
 851         fprintf(stderr,"    rmethod: ");utf_fprint(stderr,refmethod->name);fputc('\n',stderr);
 852         fprintf(stderr,"    rmdesc : ");utf_fprint(stderr,refmethod->descriptor);fputc('\n',stderr);
 853         fprintf(stderr,"    name   : ");utf_fprint(stderr,classref->name);fputc('\n',stderr);
 854 #endif
 855
 856         ref = NEW(unresolved_class);
 857         ref->classref = classref;
 858         ref->referermethod = refmethod;
 859
 860         if (valuetype) {
 861                 if (!unresolved_subtype_set_from_typeinfo(classref->referer,refmethod,
 862                                         &(ref->subtypeconstraints),valuetype,classref))
 863                         return NULL;
 864         }
 865         else {
 866                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->subtypeconstraints);
 867         }
 868
 869         return ref;
 870 }
 871
 872 unresolved_field *
 873 create_unresolved_field(classinfo *referer,methodinfo *refmethod,
 874                                                 instruction *iptr,
 875                                                 stackelement *stack)
 876 {
 877         unresolved_field *ref;
 878         constant_FMIref *fieldref = NULL;
 879         stackelement *instanceslot = NULL;
 880         int type;
 881         typeinfo tinfo;
 882         typeinfo *tip = NULL;
 883         typedesc *fd;
 884
 885 #ifdef RESOLVE_VERBOSE
 886         fprintf(stderr,"create_unresolved_field\n");
 887         fprintf(stderr,"    referer: ");utf_fprint(stderr,referer->name);fputc('\n',stderr);
 888         fprintf(stderr,"    rmethod: ");utf_fprint(stderr,refmethod->name);fputc('\n',stderr);
 889         fprintf(stderr,"    rmdesc : ");utf_fprint(stderr,refmethod->descriptor);fputc('\n',stderr);
 890 #endif
 891
 892         ref = NEW(unresolved_field);
 893         ref->flags = 0;
 894         ref->referermethod = refmethod;
 895
 896         switch (iptr[0].opc) {
 897                 case ICMD_PUTFIELD:
 898                         ref->flags |= RESOLVE_PUTFIELD;
 899                         if (stack) {
 900                                 instanceslot = stack->prev;
 901                                 tip = &(stack->typeinfo);
 902                         }
 903                         fieldref = (constant_FMIref *) iptr[0].val.a;
 904                         break;
 905
 906                 case ICMD_PUTFIELDCONST:
 907                         ref->flags |= RESOLVE_PUTFIELD;
 908                         if (stack) instanceslot = stack;
 909                         fieldref = INSTRUCTION_PUTCONST_FIELDREF(iptr);
 910                         break;
 911
 912                 case ICMD_PUTSTATIC:
 913                         ref->flags |= RESOLVE_PUTFIELD | RESOLVE_STATIC;
 914                         fieldref = (constant_FMIref *) iptr[0].val.a;
 915                         if (stack) tip = &(stack->typeinfo);
 916                         break;
 917
 918                 case ICMD_PUTSTATICCONST:
 919                         ref->flags |= RESOLVE_PUTFIELD | RESOLVE_STATIC;
 920                         fieldref = INSTRUCTION_PUTCONST_FIELDREF(iptr);
 921                         break;
 922
 923                 case ICMD_GETFIELD:
 924                         if (stack) instanceslot = stack;
 925                         fieldref = (constant_FMIref *) iptr[0].val.a;
 926                         break;
 927
 928                 case ICMD_GETSTATIC:
 929                         ref->flags |= RESOLVE_STATIC;
 930                         fieldref = (constant_FMIref *) iptr[0].val.a;
 931                         break;
 932         }
 933
 934         RESOLVE_ASSERT(fieldref);
 935         RESOLVE_ASSERT(!stack || instanceslot || ((ref->flags & RESOLVE_STATIC) != 0));
 936         fd = fieldref->parseddesc.fd;
 937         RESOLVE_ASSERT(fd);
 938
 939 #ifdef RESOLVE_VERBOSE
 940         fprintf(stderr,"    class  : ");utf_fprint(stderr,fieldref->classref->name);fputc('\n',stderr);
 941         fprintf(stderr,"    name   : ");utf_fprint(stderr,fieldref->name);fputc('\n',stderr);
 942         fprintf(stderr,"    desc   : ");utf_fprint(stderr,fieldref->descriptor);fputc('\n',stderr);
 943         fprintf(stderr,"    type   : ");descriptor_debug_print_typedesc(stderr,fieldref->parseddesc.fd);
 944         fputc('\n',stderr);
 945         /*fprintf(stderr,"    opcode : %d %s\n",iptr[0].opc,icmd_names[iptr[0].opc]);*/
 946 #endif
 947
 948         ref->fieldref = fieldref;
 949
 950         /* record subtype constraints for the instance type, if any */
 951         if (instanceslot) {
 952                 typeinfo *insttip;
 953                 RESOLVE_ASSERT(instanceslot->type == TYPE_ADR);
 954
 955                 if (((ref->flags & RESOLVE_PUTFIELD) != 0) &&
 956                                 TYPEINFO_IS_NEWOBJECT(instanceslot->typeinfo))
 957                 {   /* XXX clean up */
 958                         instruction *ins = (instruction*)TYPEINFO_NEWOBJECT_INSTRUCTION(instanceslot->typeinfo);
 959                         classinfo *initclass = (ins) ? (classinfo*)ins[-1].val.a
 960                                                                                  : refmethod->class; /* XXX classrefs */
 961                         RESOLVE_ASSERT(initclass->loaded && initclass->linked);
 962                         TYPEINFO_INIT_CLASSINFO(tinfo,initclass);
 963                         insttip = &tinfo;
 964                 }
 965                 else {
 966                         insttip = &(instanceslot->typeinfo);
 967                 }
 968                 if (!unresolved_subtype_set_from_typeinfo(referer,refmethod,
 969                                         &(ref->instancetypes),insttip,fieldref->classref))
 970                         return NULL;
 971         }
 972         else {
 973                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->instancetypes);
 974         }
 975
 976         /* record subtype constraints for the value type, if any */
 977         type = fd->type;
 978         if (stack && type == TYPE_ADR && ((ref->flags & RESOLVE_PUTFIELD) != 0)) {
 979                 if (!tip) {
 980                         /* we have a PUTSTATICCONST or PUTFIELDCONST with TYPE_ADR */
 981                         tip = &tinfo;
 982                         if (INSTRUCTION_PUTCONST_VALUE_ADR(iptr)) {
 983                                 RESOLVE_ASSERT(class_java_lang_String);
 984                                 RESOLVE_ASSERT(class_java_lang_String->loaded);
 985                                 RESOLVE_ASSERT(class_java_lang_String->linked);
 986                                 TYPEINFO_INIT_CLASSINFO(tinfo,class_java_lang_String);
 987                         }
 988                         else
 989                                 TYPEINFO_INIT_NULLTYPE(tinfo);
 990                 }
 991                 if (!unresolved_subtype_set_from_typeinfo(referer,refmethod,
 992                                         &(ref->valueconstraints),tip,fieldref->parseddesc.fd->classref))
 993                         return NULL;
 994         }
 995         else {
 996                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->valueconstraints);
 997         }
 998
 999         return ref;
1000 }
1001
1002 unresolved_method *
1003 create_unresolved_method(classinfo *referer,methodinfo *refmethod,
1004                                                  instruction *iptr,
1005                                                  stackelement *stack)
1006 {
1007         unresolved_method *ref;
1008         constant_FMIref *methodref;
1009         stackelement *instanceslot = NULL;
1010         stackelement *param;
1011         methoddesc *md;
1012         typeinfo tinfo;
1013         int i,j;
1014         int type;
1015
1016         methodref = (constant_FMIref *) iptr[0].val.a;
1017         RESOLVE_ASSERT(methodref);
1018         md = methodref->parseddesc.md;
1019         RESOLVE_ASSERT(md);
1020
1021 #ifdef RESOLVE_VERBOSE
1022         fprintf(stderr,"create_unresolved_method\n");
1023         fprintf(stderr,"    referer: ");utf_fprint(stderr,referer->name);fputc('\n',stderr);
1024         fprintf(stderr,"    rmethod: ");utf_fprint(stderr,refmethod->name);fputc('\n',stderr);
1025         fprintf(stderr,"    rmdesc : ");utf_fprint(stderr,refmethod->descriptor);fputc('\n',stderr);
1026         fprintf(stderr,"    class  : ");utf_fprint(stderr,methodref->classref->name);fputc('\n',stderr);
1027         fprintf(stderr,"    name   : ");utf_fprint(stderr,methodref->name);fputc('\n',stderr);
1028         fprintf(stderr,"    desc   : ");utf_fprint(stderr,methodref->descriptor);fputc('\n',stderr);
1029         /*fprintf(stderr,"    opcode : %d %s\n",iptr[0].opc,icmd_names[iptr[0].opc]);*/
1030 #endif
1031
1032         ref = NEW(unresolved_method);
1033         ref->flags = 0;
1034         ref->referermethod = refmethod;
1035         ref->methodref = methodref;
1036         ref->paramconstraints = NULL;
1037
1038         switch (iptr[0].opc) {
1039                 case ICMD_INVOKESTATIC:
1040                         ref->flags |= RESOLVE_STATIC;
1041                         break;
1042                 case ICMD_INVOKEVIRTUAL:
1043                 case ICMD_INVOKESPECIAL:
1044                 case ICMD_INVOKEINTERFACE:
1045                         break;
1046                 default:
1047                         RESOLVE_ASSERT(false);
1048         }
1049
1050         if (stack && (ref->flags & RESOLVE_STATIC) == 0) {
1051                 /* find the instance slot under all the parameter slots on the stack */
1052                 instanceslot = stack;
1053                 for (i=0; i<md->paramcount; ++i)
1054                         instanceslot = instanceslot->prev;
1055         }
1056
1057         RESOLVE_ASSERT(!stack || instanceslot || ((ref->flags & RESOLVE_STATIC) != 0));
1058
1059         /* record subtype constraints for the instance type, if any */
1060         if (instanceslot) {
1061                 typeinfo *tip;
1062
1063                 RESOLVE_ASSERT(instanceslot->type == TYPE_ADR);
1064
1065                 if (iptr[0].opc == ICMD_INVOKESPECIAL &&
1066                                 TYPEINFO_IS_NEWOBJECT(instanceslot->typeinfo))
1067                 {   /* XXX clean up */
1068                         instruction *ins = (instruction*)TYPEINFO_NEWOBJECT_INSTRUCTION(instanceslot->typeinfo);
1069                         classinfo *initclass = (ins) ? (classinfo*)ins[-1].val.a
1070                                                                                  : refmethod->class; /* XXX classrefs */
1071                         RESOLVE_ASSERT(initclass->loaded && initclass->linked);
1072                         TYPEINFO_INIT_CLASSINFO(tinfo,initclass);
1073                         tip = &tinfo;
1074                 }
1075                 else {
1076                         tip = &(instanceslot->typeinfo);
1077                 }
1078                 if (!unresolved_subtype_set_from_typeinfo(referer,refmethod,
1079                                         &(ref->instancetypes),tip,methodref->classref))
1080                         return NULL;
1081         }
1082         else {
1083                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->instancetypes);
1084         }
1085
1086         /* record subtype constraints for the parameter types, if any */
1087         if (stack) {
1088                 param = stack;
1089                 for (i=md->paramcount-1; i>=0; --i, param=param->prev) {
1090                         type = md->paramtypes[i].type;
1091
1092                         RESOLVE_ASSERT(param);
1093                         RESOLVE_ASSERT(type == param->type);
1094
1095                         if (type == TYPE_ADR) {
1096                                 if (!ref->paramconstraints) {
1097                                         ref->paramconstraints = MNEW(unresolved_subtype_set,md->paramcount);
1098                                         for (j=md->paramcount-1; j>i; --j)
1099                                                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->paramconstraints[j]);
1100                                 }
1101                                 RESOLVE_ASSERT(ref->paramconstraints);
1102                                 if (!unresolved_subtype_set_from_typeinfo(referer,refmethod,
1103                                                         ref->paramconstraints + i,&(param->typeinfo),
1104                                                         md->paramtypes[i].classref))
1105                                         return NULL;
1106                         }
1107                         else {
1108                                 if (ref->paramconstraints)
1109                                         UNRESOLVED_SUBTYPE_SET_EMTPY(ref->paramconstraints[i]);
1110                         }
1111                 }
1112         }
1113
1114         return ref;
1115 }
1116
1117 /******************************************************************************/
1118 /* FREEING MEMORY                                                             */
1119 /******************************************************************************/
1120
1121 inline static void
1122 unresolved_subtype_set_free_list(classref_or_classinfo *list)
1123 {
1124         if (list) {
1125                 classref_or_classinfo *p = list;
1126
1127                 /* this is silly. we *only* need to count the elements for MFREE */
1128                 while ((p++)->any)
1129                         ;
1130                 MFREE(list,classref_or_classinfo,(p - list));
1131         }
1132 }
1133
1134 /* unresolved_class_free *******************************************************
1135
1136    Free the memory used by an unresolved_class
1137
1138    IN:
1139        ref..............the unresolved_class
1140
1141 *******************************************************************************/
1142
1143 void
1144 unresolved_class_free(unresolved_class *ref)
1145 {
1146         RESOLVE_ASSERT(ref);
1147
1148         unresolved_subtype_set_free_list(ref->subtypeconstraints.subtyperefs);
1149         FREE(ref,unresolved_class);
1150 }
1151
1152 /* unresolved_field_free *******************************************************
1153
1154    Free the memory used by an unresolved_field
1155
1156    IN:
1157        ref..............the unresolved_field
1158
1159 *******************************************************************************/
1160
1161 void
1162 unresolved_field_free(unresolved_field *ref)
1163 {
1164         RESOLVE_ASSERT(ref);
1165
1166         unresolved_subtype_set_free_list(ref->instancetypes.subtyperefs);
1167         unresolved_subtype_set_free_list(ref->valueconstraints.subtyperefs);
1168         FREE(ref,unresolved_field);
1169 }
1170
1171 /* unresolved_method_free ******************************************************
1172
1173    Free the memory used by an unresolved_method
1174
1175    IN:
1176        ref..............the unresolved_method
1177
1178 *******************************************************************************/
1179
1180 void
1181 unresolved_method_free(unresolved_method *ref)
1182 {
1183         RESOLVE_ASSERT(ref);
1184
1185         unresolved_subtype_set_free_list(ref->instancetypes.subtyperefs);
1186         if (ref->paramconstraints) {
1187                 int i;
1188                 int count = ref->methodref->parseddesc.md->paramcount;
1189
1190                 for (i=0; i<count; ++i)
1191                         unresolved_subtype_set_free_list(ref->paramconstraints[i].subtyperefs);
1192                 MFREE(ref->paramconstraints,unresolved_subtype_set,count);
1193         }
1194         FREE(ref,unresolved_method);
1195 }
1196
1197 /******************************************************************************/
1198 /* DEBUG DUMPS                                                                */
1199 /******************************************************************************/
1200
1201 /* unresolved_subtype_set_debug_dump *******************************************
1202
1203    Print debug info for unresolved_subtype_set to stream
1204
1205    IN:
1206        stset............the unresolved_subtype_set
1207            file.............the stream
1208
1209 *******************************************************************************/
1210
1211 void
1212 unresolved_subtype_set_debug_dump(unresolved_subtype_set *stset,FILE *file)
1213 {
1214         classref_or_classinfo *p;
1215
1216         if (SUBTYPESET_IS_EMPTY(*stset)) {
1217                 fprintf(file,"        (empty)\n");
1218         }
1219         else {
1220                 p = stset->subtyperefs;
1221                 for (;p->any; ++p) {
1222                         if (IS_CLASSREF(*p)) {
1223                                 fprintf(file,"        ref: ");
1224                                 utf_fprint(file,p->ref->name);
1225                         }
1226                         else {
1227                                 fprintf(file,"        cls: ");
1228                                 utf_fprint(file,p->cls->name);
1229                         }
1230                         fputc('\n',file);
1231                 }
1232         }
1233 }
1234
1235 /* unresolved_class_debug_dump *************************************************
1236
1237    Print debug info for unresolved_class to stream
1238
1239    IN:
1240        ref..............the unresolved_class
1241            file.............the stream
1242
1243 *******************************************************************************/
1244
1245 void
1246 unresolved_class_debug_dump(unresolved_class *ref,FILE *file)
1247 {
1248         fprintf(file,"unresolved_class(%p):\n",(void *)ref);
1249         if (ref) {
1250                 fprintf(file,"    referer   : ");
1251                 utf_fprint(file,ref->classref->referer->name); fputc('\n',file);
1252                 fprintf(file,"    refmethod  : ");
1253                 utf_fprint(file,ref->referermethod->name); fputc('\n',file);
1254                 fprintf(file,"    refmethodd : ");
1255                 utf_fprint(file,ref->referermethod->descriptor); fputc('\n',file);
1256                 fprintf(file,"    classname : ");
1257                 utf_fprint(file,ref->classref->name); fputc('\n',file);
1258                 fprintf(file,"    subtypeconstraints:\n");
1259                 unresolved_subtype_set_debug_dump(&(ref->subtypeconstraints),file);
1260         }
1261 }
1262
1263 /* unresolved_field_debug_dump *************************************************
1264
1265    Print debug info for unresolved_field to stream
1266
1267    IN:
1268        ref..............the unresolved_field
1269            file.............the stream
1270
1271 *******************************************************************************/
1272
1273 void
1274 unresolved_field_debug_dump(unresolved_field *ref,FILE *file)
1275 {
1276         fprintf(file,"unresolved_field(%p):\n",(void *)ref);
1277         if (ref) {
1278                 fprintf(file,"    referer   : ");
1279                 utf_fprint(file,ref->fieldref->classref->referer->name); fputc('\n',file);
1280                 fprintf(file,"    refmethod  : ");
1281                 utf_fprint(file,ref->referermethod->name); fputc('\n',file);
1282                 fprintf(file,"    refmethodd : ");
1283                 utf_fprint(file,ref->referermethod->descriptor); fputc('\n',file);
1284                 fprintf(file,"    classname : ");
1285                 utf_fprint(file,ref->fieldref->classref->name); fputc('\n',file);
1286                 fprintf(file,"    name      : ");
1287                 utf_fprint(file,ref->fieldref->name); fputc('\n',file);
1288                 fprintf(file,"    descriptor: ");
1289                 utf_fprint(file,ref->fieldref->descriptor); fputc('\n',file);
1290                 fprintf(file,"    parseddesc: ");
1291                 descriptor_debug_print_typedesc(file,ref->fieldref->parseddesc.fd); fputc('\n',file);
1292                 fprintf(file,"    flags     : %04x\n",ref->flags);
1293                 fprintf(file,"    instancetypes:\n");
1294                 unresolved_subtype_set_debug_dump(&(ref->instancetypes),file);
1295                 fprintf(file,"    valueconstraints:\n");
1296                 unresolved_subtype_set_debug_dump(&(ref->valueconstraints),file);
1297         }
1298 }
1299
1300 /* unresolved_method_debug_dump ************************************************
1301
1302    Print debug info for unresolved_method to stream
1303
1304    IN:
1305        ref..............the unresolved_method
1306            file.............the stream
1307
1308 *******************************************************************************/
1309
1310 void
1311 unresolved_method_debug_dump(unresolved_method *ref,FILE *file)
1312 {
1313         int i;
1314
1315         fprintf(file,"unresolved_method(%p):\n",(void *)ref);
1316         if (ref) {
1317                 fprintf(file,"    referer   : ");
1318                 utf_fprint(file,ref->methodref->classref->referer->name); fputc('\n',file);
1319                 fprintf(file,"    refmethod  : ");
1320                 utf_fprint(file,ref->referermethod->name); fputc('\n',file);
1321                 fprintf(file,"    refmethodd : ");
1322                 utf_fprint(file,ref->referermethod->descriptor); fputc('\n',file);
1323                 fprintf(file,"    classname : ");
1324                 utf_fprint(file,ref->methodref->classref->name); fputc('\n',file);
1325                 fprintf(file,"    name      : ");
1326                 utf_fprint(file,ref->methodref->name); fputc('\n',file);
1327                 fprintf(file,"    descriptor: ");
1328                 utf_fprint(file,ref->methodref->descriptor); fputc('\n',file);
1329                 fprintf(file,"    parseddesc: ");
1330                 descriptor_debug_print_methoddesc(file,ref->methodref->parseddesc.md); fputc('\n',file);
1331                 fprintf(file,"    flags     : %04x\n",ref->flags);
1332                 fprintf(file,"    instancetypes:\n");
1333                 unresolved_subtype_set_debug_dump(&(ref->instancetypes),file);
1334                 fprintf(file,"    paramconstraints:\n");
1335                 if (ref->paramconstraints) {
1336                         for (i=0; i<ref->methodref->parseddesc.md->paramcount; ++i) {
1337                                 fprintf(file,"      param %d:\n",i);
1338                                 unresolved_subtype_set_debug_dump(ref->paramconstraints + i,file);
1339                         }
1340                 }
1341                 else {
1342                         fprintf(file,"      (empty)\n");
1343                 }
1344         }
1345 }
1346
1347 /*
1348  * These are local overrides for various environment variables in Emacs.
1349  * Please do not remove this and leave it at the end of the file, where
1350  * Emacs will automagically detect them.
1351  * ---------------------------------------------------------------------
1352  * Local variables:
1353  * mode: c
1354  * indent-tabs-mode: t
1355  * c-basic-offset: 4
1356  * tab-width: 4
1357  * End:
1358  * vim:noexpandtab:sw=4:ts=4:
1359  */
1360