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 2227 2005-04-05 23:00:37Z 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                           bool link,
  77                           classinfo **result)
  78 {
  79         classinfo *cls = NULL;
  80         char *utf_ptr;
  81         int len;
  82
  83         RESOLVE_ASSERT(result);
  84         RESOLVE_ASSERT(referer);
  85         RESOLVE_ASSERT(classname);
  86         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
  87
  88         *result = NULL;
  89
  90 #ifdef RESOLVE_VERBOSE
  91         fprintf(stderr,"resolve_class_from_name(");
  92         utf_fprint(stderr,referer->name);
  93         fprintf(stderr,",");
  94         utf_fprint(stderr,classname);
  95         fprintf(stderr,")\n");
  96 #endif
  97
  98         /* lookup if this class has already been loaded */
  99         cls = classcache_lookup(referer->classloader,classname);
 100
 101 #ifdef RESOLVE_VERBOSE
 102         fprintf(stderr,"    lookup result: %p\n",(void*)cls);
 103 #endif
 104
 105         if (!cls) {
 106                 /* resolve array types */
 107                 if (classname->text[0] == '[') {
 108                         utf_ptr = classname->text + 1;
 109                         len = classname->blength - 1;
 110                         /* classname is an array type name */
 111                         switch (*utf_ptr) {
 112                                 case 'L':
 113                                         utf_ptr++;
 114                                         len -= 2;
 115                                         /* FALLTHROUGH */
 116                                 case '[':
 117                                         /* the component type is a reference type */
 118                                         /* resolve the component type */
 119                                         if (!resolve_class_from_name(referer,refmethod,
 120                                                                            utf_new(utf_ptr,len),
 121                                                                            mode,link,&cls))
 122                                                 return false; /* exception */
 123                                         if (!cls) {
 124                                                 RESOLVE_ASSERT(mode == resolveLazy);
 125                                                 return true; /* be lazy */
 126                                         }
 127                                         /* create the array class */
 128                                         cls = class_array_of(cls,false);
 129                                         if (!cls)
 130                                                 return false; /* exception */
 131                         }
 132                 }
 133                 else {
 134                         /* the class has not been loaded, yet */
 135                         if (mode == resolveLazy)
 136                                 return true; /* be lazy */
 137                 }
 138
 139 #ifdef RESOLVE_VERBOSE
 140                 fprintf(stderr,"    loading...\n");
 141 #endif
 142
 143                 /* load the class */
 144                 if (!cls) {
 145                         if (!load_class_from_classloader(classname,referer->classloader,&cls))
 146                                 return false; /* exception */
 147                 }
 148         }
 149
 150         /* the class is now loaded */
 151         RESOLVE_ASSERT(cls);
 152         RESOLVE_ASSERT(cls->loaded);
 153
 154 #ifdef RESOLVE_VERBOSE
 155         fprintf(stderr,"    checking access rights...\n");
 156 #endif
 157
 158         /* check access rights of referer to refered class */
 159         if (!is_accessible_class(referer,cls)) {
 160                 *exceptionptr = new_exception_message(string_java_lang_IllegalAccessException,
 161                                 "class is not accessible XXX add message");
 162                 return false; /* exception */
 163         }
 164
 165         /* link the class if necessary */
 166         if (link) {
 167                 if (!cls->linked)
 168                         if (!link_class(cls))
 169                                 return false; /* exception */
 170                 RESOLVE_ASSERT(cls->linked);
 171         }
 172
 173         /* resolution succeeds */
 174 #ifdef RESOLVE_VERBOSE
 175         fprintf(stderr,"    success.\n");
 176 #endif
 177         *result = cls;
 178         return true;
 179 }
 180
 181 bool
 182 resolve_classref(methodinfo *refmethod,
 183                                  constant_classref *ref,
 184                                  resolve_mode_t mode,
 185                              bool link,
 186                                  classinfo **result)
 187 {
 188         return resolve_classref_or_classinfo(refmethod,CLASSREF_OR_CLASSINFO(ref),mode,link,result);
 189 }
 190
 191 bool
 192 resolve_classref_or_classinfo(methodinfo *refmethod,
 193                                                           classref_or_classinfo cls,
 194                                                           resolve_mode_t mode,
 195                                                           bool link,
 196                                                           classinfo **result)
 197 {
 198         classinfo *c;
 199
 200         RESOLVE_ASSERT(cls.any);
 201         RESOLVE_ASSERT(mode == resolveEager || mode == resolveLazy);
 202         RESOLVE_ASSERT(result);
 203
 204 #ifdef RESOLVE_VERBOSE
 205         fprintf(stderr,"resolve_classref_or_classinfo(");
 206         utf_fprint(stderr,(IS_CLASSREF(cls)) ? cls.ref->name : cls.cls->name);
 207         fprintf(stderr,",%i,%i)\n",mode,link);
 208 #endif
 209
 210         *result = NULL;
 211
 212         if (IS_CLASSREF(cls)) {
 213                 /* we must resolve this reference */
 214                 if (!resolve_class_from_name(cls.ref->referer,refmethod,cls.ref->name,
 215                                                                         mode,link,&c))
 216                         return false; /* exception */
 217         }
 218         else {
 219                 /* cls has already been resolved */
 220                 c = cls.cls;
 221                 RESOLVE_ASSERT(c->loaded);
 222         }
 223         RESOLVE_ASSERT(c || (mode == resolveLazy));
 224
 225         if (!c)
 226                 return true; /* be lazy */
 227
 228         RESOLVE_ASSERT(c);
 229         RESOLVE_ASSERT(c->loaded);
 230
 231         if (link) {
 232                 if (!c->linked)
 233                         if (!link_class(c))
 234                                 return false; /* exception */
 235                 RESOLVE_ASSERT(c->linked);
 236         }
 237
 238         /* succeeded */
 239         *result = c;
 240         return true;
 241 }
 242
 243 bool
 244 resolve_class_from_typedesc(typedesc *d,bool link,classinfo **result)
 245 {
 246         classinfo *cls;
 247
 248         RESOLVE_ASSERT(d);
 249         RESOLVE_ASSERT(result);
 250
 251         *result = NULL;
 252
 253 #ifdef RESOLVE_VERBOSE
 254         fprintf(stderr,"resolve_class_from_typedesc(");
 255         descriptor_debug_print_typedesc(stderr,d);
 256         fprintf(stderr,",%i)\n",link);
 257 #endif
 258
 259         if (d->classref) {
 260                 /* a reference type */
 261                 if (!resolve_classref_or_classinfo(NULL,CLASSREF_OR_CLASSINFO(d->classref),
 262                                                                                    resolveEager,link,&cls))
 263                         return false; /* exception */
 264         }
 265         else {
 266                 /* a primitive type */
 267                 cls = primitivetype_table[d->decltype].class_primitive;
 268                 RESOLVE_ASSERT(cls->loaded);
 269                 if (!cls->linked)
 270                         if (!link_class(cls))
 271                                 return false; /* exception */
 272         }
 273         RESOLVE_ASSERT(cls);
 274         RESOLVE_ASSERT(cls->loaded);
 275         RESOLVE_ASSERT(!link || cls->linked);
 276
 277 #ifdef RESOLVE_VERBOSE
 278         fprintf(stderr,"    result = ");utf_fprint(stderr,cls->name);fprintf(stderr,"\n");
 279 #endif
 280
 281         *result = cls;
 282         return true;
 283 }
 284
 285 /******************************************************************************/
 286 /* SUBTYPE SET CHECKS                                                         */
 287 /******************************************************************************/
 288
 289 /* for documentation see resolve.h */
 290 bool
 291 resolve_and_check_subtype_set(classinfo *referer,methodinfo *refmethod,
 292                                                           unresolved_subtype_set *ref,
 293                                                           classref_or_classinfo typeref,
 294                                                           bool reversed,
 295                                                           resolve_mode_t mode,
 296                                                           resolve_err_t error,
 297                                                           bool *checked)
 298 {
 299         classref_or_classinfo *setp;
 300         classinfo *result;
 301         classinfo *type;
 302         typeinfo resultti;
 303         typeinfo typeti;
 304
 305         RESOLVE_ASSERT(referer);
 306         RESOLVE_ASSERT(ref);
 307         RESOLVE_ASSERT(typeref.any);
 308         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
 309         RESOLVE_ASSERT(error == resolveLinkageError || error == resolveIllegalAccessError);
 310
 311 #ifdef RESOLVE_VERBOSE
 312         fprintf(stderr,"resolve_and_check_subtype_set\n");
 313         unresolved_subtype_set_debug_dump(ref,stderr);
 314         if (IS_CLASSREF(typeref)) {
 315                 fprintf(stderr,"    ref: ");utf_fprint(stderr,typeref.ref->name);
 316         }
 317         else {
 318                 fprintf(stderr,"    cls: ");utf_fprint(stderr,typeref.cls->name);
 319         }
 320         fprintf(stderr,"\n");
 321 #endif
 322
 323         setp = ref->subtyperefs;
 324
 325         /* an empty set of tests always succeeds */
 326         if (!setp || !setp->any) {
 327                 if (checked)
 328                         *checked = true;
 329                 return true;
 330         }
 331
 332         if (checked)
 333                 *checked = false;
 334
 335         /* first resolve the type if necessary */
 336         if (!resolve_classref_or_classinfo(refmethod,typeref,mode,true,&type))
 337                 return false; /* exception */
 338         if (!type)
 339                 return true; /* be lazy */
 340
 341         RESOLVE_ASSERT(type);
 342         RESOLVE_ASSERT(type->loaded);
 343         RESOLVE_ASSERT(type->linked);
 344         TYPEINFO_INIT_CLASSINFO(typeti,type);
 345
 346         for (; setp->any; ++setp) {
 347                 /* first resolve the set member if necessary */
 348                 if (!resolve_classref_or_classinfo(refmethod,*setp,mode,true,&result))
 349                         return false; /* exception */
 350                 if (!result)
 351                         return true; /* be lazy */
 352
 353                 RESOLVE_ASSERT(result);
 354                 RESOLVE_ASSERT(result->loaded);
 355                 RESOLVE_ASSERT(result->linked);
 356
 357 #ifdef RESOLVE_VERBOSE
 358                 fprintf(stderr,"performing subclass test:\n");
 359                 fprintf(stderr,"    ");utf_fprint(stderr,result->name);fputc('\n',stderr);
 360                 fprintf(stderr,"  must be a %s of\n",(reversed) ? "superclass" : "subclass");
 361                 fprintf(stderr,"    ");utf_fprint(stderr,type->name);fputc('\n',stderr);
 362 #endif
 363
 364                 /* now check the subtype relationship */
 365                 TYPEINFO_INIT_CLASSINFO(resultti,result);
 366                 if (reversed) {
 367                         /* we must test against `true` because `MAYBE` is also != 0 */
 368                         if (true != typeinfo_is_assignable_to_class(&typeti,CLASSREF_OR_CLASSINFO(result))) {
 369 #ifdef RESOLVE_VERBOSE
 370                                 fprintf(stderr,"reversed subclass test failed\n");
 371 #endif
 372                                 goto throw_error;
 373                         }
 374                 }
 375                 else {
 376                         /* we must test against `true` because `MAYBE` is also != 0 */
 377                         if (true != typeinfo_is_assignable_to_class(&resultti,CLASSREF_OR_CLASSINFO(type))) {
 378 #ifdef RESOLVE_VERBOSE
 379                                 fprintf(stderr,"subclass test failed\n");
 380 #endif
 381                                 goto throw_error;
 382                         }
 383                 }
 384         }
 385
 386         /* check succeeds */
 387         if (checked)
 388                 *checked = true;
 389         return true;
 390
 391 throw_error:
 392         if (error == resolveIllegalAccessError)
 393                 *exceptionptr = new_exception_message(string_java_lang_IllegalAccessException,
 394                                 "illegal access to protected member XXX add message");
 395         else
 396                 *exceptionptr = new_exception_message(string_java_lang_LinkageError,
 397                                 "subtype constraint violated XXX add message");
 398         return false; /* exception */
 399 }
 400
 401 /******************************************************************************/
 402 /* CLASS RESOLUTION                                                           */
 403 /******************************************************************************/
 404
 405 /* for documentation see resolve.h */
 406 bool
 407 resolve_class(unresolved_class *ref,
 408                           resolve_mode_t mode,
 409                           classinfo **result)
 410 {
 411         classinfo *cls;
 412         bool checked;
 413
 414         RESOLVE_ASSERT(ref);
 415         RESOLVE_ASSERT(result);
 416         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
 417
 418         *result = NULL;
 419
 420 #ifdef RESOLVE_VERBOSE
 421         unresolved_class_debug_dump(ref,stderr);
 422 #endif
 423
 424         /* first we must resolve the class */
 425         if (!resolve_classref(ref->referermethod,
 426                                               ref->classref,mode,true,&cls))
 427         {
 428                 /* the class reference could not be resolved */
 429                 return false; /* exception */
 430         }
 431         if (!cls)
 432                 return true; /* be lazy */
 433
 434         RESOLVE_ASSERT(cls);
 435         RESOLVE_ASSERT(cls->loaded && cls->linked);
 436
 437         /* now we check the subtype constraints */
 438         if (!resolve_and_check_subtype_set(ref->classref->referer,ref->referermethod,
 439                                                                            &(ref->subtypeconstraints),
 440                                                                            CLASSREF_OR_CLASSINFO(cls),
 441                                                                            false,
 442                                                                            mode,
 443                                                                            resolveLinkageError,&checked))
 444         {
 445                 return false; /* exception */
 446         }
 447         if (!checked)
 448                 return true; /* be lazy */
 449
 450         /* succeed */
 451         *result = cls;
 452         return true;
 453 }
 454
 455 /******************************************************************************/
 456 /* FIELD RESOLUTION                                                           */
 457 /******************************************************************************/
 458
 459 /* for documentation see resolve.h */
 460 bool
 461 resolve_field(unresolved_field *ref,
 462                           resolve_mode_t mode,
 463                           fieldinfo **result)
 464 {
 465         classinfo *referer;
 466         classinfo *container;
 467         classinfo *declarer;
 468         constant_classref *fieldtyperef;
 469         fieldinfo *fi;
 470         bool checked;
 471
 472         RESOLVE_ASSERT(ref);
 473         RESOLVE_ASSERT(result);
 474         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
 475
 476         *result = NULL;
 477
 478 #ifdef RESOLVE_VERBOSE
 479         unresolved_field_debug_dump(ref,stderr);
 480 #endif
 481
 482         /* the class containing the reference */
 483         referer = ref->fieldref->classref->referer;
 484         RESOLVE_ASSERT(referer);
 485
 486         /* first we must resolve the class containg the field */
 487         if (!resolve_class_from_name(referer,ref->referermethod,
 488                                            ref->fieldref->classref->name,mode,true,&container))
 489         {
 490                 /* the class reference could not be resolved */
 491                 return false; /* exception */
 492         }
 493         if (!container)
 494                 return true; /* be lazy */
 495
 496         RESOLVE_ASSERT(container);
 497         RESOLVE_ASSERT(container->loaded && container->linked);
 498
 499         /* now we must find the declaration of the field in `container`
 500          * or one of its superclasses */
 501
 502 #ifdef RESOLVE_VERBOSE
 503                 fprintf(stderr,"    resolving field in class...\n");
 504 #endif
 505
 506         fi = class_resolvefield(container,
 507                                                         ref->fieldref->name,ref->fieldref->descriptor,
 508                                                         referer,true);
 509         if (!fi)
 510                 return false; /* exception */
 511
 512         /* { the field reference has been resolved } */
 513         declarer = fi->class;
 514         RESOLVE_ASSERT(declarer);
 515         RESOLVE_ASSERT(declarer->loaded && declarer->linked);
 516
 517 #ifdef RESOLVE_VERBOSE
 518                 fprintf(stderr,"    checking static...\n");
 519 #endif
 520
 521         /* check static */
 522         if (((fi->flags & ACC_STATIC) != 0) != ((ref->flags & RESOLVE_STATIC) != 0)) {
 523                 /* a static field is accessed via an instance, or vice versa */
 524                 *exceptionptr = new_exception_message(string_java_lang_IncompatibleClassChangeError,
 525                                 (fi->flags & ACC_STATIC) ? "static field accessed via instance"
 526                                                          : "instance field accessed without instance");
 527                 return false; /* exception */
 528         }
 529
 530         /* for non-static accesses we have to check the constraints on the instance type */
 531         if ((ref->flags & RESOLVE_STATIC) == 0) {
 532 #ifdef RESOLVE_VERBOSE
 533                 fprintf(stderr,"    checking instance types...\n");
 534 #endif
 535
 536                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 537                                                                                    &(ref->instancetypes),
 538                                                                                    CLASSREF_OR_CLASSINFO(container),
 539                                                                                    false,
 540                                                                                    mode,
 541                                                                                    resolveLinkageError,&checked))
 542                 {
 543                         return false; /* exception */
 544                 }
 545                 if (!checked)
 546                         return true; /* be lazy */
 547         }
 548
 549         fieldtyperef = ref->fieldref->parseddesc.fd->classref;
 550
 551         /* for PUT* instructions we have to check the constraints on the value type */
 552         if (((ref->flags & RESOLVE_PUTFIELD) != 0) && fi->type == TYPE_ADR) {
 553                 RESOLVE_ASSERT(fieldtyperef);
 554                 if (!SUBTYPESET_IS_EMPTY(ref->valueconstraints)) {
 555                         /* check subtype constraints */
 556                         if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 557                                                                                            &(ref->valueconstraints),
 558                                                                                            CLASSREF_OR_CLASSINFO(fieldtyperef),
 559                                                                                            false,
 560                                                                                            mode,
 561                                                                                            resolveLinkageError,&checked))
 562                         {
 563                                 return false; /* exception */
 564                         }
 565                         if (!checked)
 566                                 return true; /* be lazy */
 567                 }
 568         }
 569
 570         /* check access rights */
 571         if (!is_accessible_member(referer,declarer,fi->flags)) {
 572                 *exceptionptr = new_exception_message(string_java_lang_IllegalAccessException,
 573                                 "field is not accessible XXX add message");
 574                 return false; /* exception */
 575         }
 576
 577         /* check protected access */
 578         if (((fi->flags & ACC_PROTECTED) != 0) && !SAME_PACKAGE(declarer,referer)) {
 579                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 580                                                                                    &(ref->instancetypes),
 581                                                                                    CLASSREF_OR_CLASSINFO(referer),
 582                                                                                    false,
 583                                                                                    mode,
 584                                                                                    resolveIllegalAccessError,&checked))
 585                 {
 586                         return false; /* exception */
 587                 }
 588                 if (!checked)
 589                         return true; /* be lazy */
 590         }
 591
 592         /* impose loading constraint on field type */
 593         if (fi->type == TYPE_ADR) {
 594                 RESOLVE_ASSERT(fieldtyperef);
 595                 if (!classcache_add_constraint(declarer->classloader,referer->classloader,
 596                                                                            fieldtyperef->name))
 597                         return false; /* exception */
 598         }
 599
 600         /* succeed */
 601         *result = fi;
 602         return true;
 603 }
 604
 605 /******************************************************************************/
 606 /* METHOD RESOLUTION                                                          */
 607 /******************************************************************************/
 608
 609 /* for documentation see resolve.h */
 610 bool
 611 resolve_method(unresolved_method *ref,
 612                            resolve_mode_t mode,
 613                            methodinfo **result)
 614 {
 615         classinfo *referer;
 616         classinfo *container;
 617         classinfo *declarer;
 618         methodinfo *mi;
 619         typedesc *paramtypes;
 620         int instancecount;
 621         int i;
 622         bool checked;
 623
 624         RESOLVE_ASSERT(ref);
 625         RESOLVE_ASSERT(result);
 626         RESOLVE_ASSERT(mode == resolveLazy || mode == resolveEager);
 627
 628 #ifdef RESOLVE_VERBOSE
 629         unresolved_method_debug_dump(ref,stderr);
 630 #endif
 631
 632         *result = NULL;
 633
 634         /* the class containing the reference */
 635         referer = ref->methodref->classref->referer;
 636         RESOLVE_ASSERT(referer);
 637
 638         /* first we must resolve the class containg the method */
 639         if (!resolve_class_from_name(referer,ref->referermethod,
 640                                            ref->methodref->classref->name,mode,true,&container))
 641         {
 642                 /* the class reference could not be resolved */
 643                 return false; /* exception */
 644         }
 645         if (!container)
 646                 return true; /* be lazy */
 647
 648         RESOLVE_ASSERT(container);
 649
 650         /* now we must find the declaration of the method in `container`
 651          * or one of its superclasses */
 652
 653         if ((container->flags & ACC_INTERFACE) != 0) {
 654                 mi = class_resolveinterfacemethod(container,
 655                                                                               ref->methodref->name,ref->methodref->descriptor,
 656                                                                               referer,true);
 657         }
 658         else {
 659                 mi = class_resolveclassmethod(container,
 660                                                                           ref->methodref->name,ref->methodref->descriptor,
 661                                                                           referer,true);
 662         }
 663         if (!mi)
 664                 return false; /* exception */ /* XXX set exceptionptr? */
 665
 666         /* { the method reference has been resolved } */
 667         declarer = mi->class;
 668         RESOLVE_ASSERT(declarer);
 669
 670         /* check static */
 671         if (((mi->flags & ACC_STATIC) != 0) != ((ref->flags & RESOLVE_STATIC) != 0)) {
 672                 /* a static method is accessed via an instance, or vice versa */
 673                 *exceptionptr = new_exception_message(string_java_lang_IncompatibleClassChangeError,
 674                                 (mi->flags & ACC_STATIC) ? "static method called via instance"
 675                                                          : "instance method called without instance");
 676                 return false; /* exception */
 677         }
 678
 679         /* for non-static methods we have to check the constraints on the instance type */
 680         if ((ref->flags & RESOLVE_STATIC) == 0) {
 681                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 682                                                                                    &(ref->instancetypes),
 683                                                                                    CLASSREF_OR_CLASSINFO(container),
 684                                                                                    false,
 685                                                                                    mode,
 686                                                                                    resolveLinkageError,&checked))
 687                 {
 688                         return false; /* exception */
 689                 }
 690                 if (!checked)
 691                         return true; /* be lazy */
 692                 instancecount = 1;
 693         }
 694         else {
 695                 instancecount = 0;
 696         }
 697
 698         /* check subtype constraints for TYPE_ADR parameters */
 699         RESOLVE_ASSERT(mi->parseddesc->paramcount == ref->methodref->parseddesc.md->paramcount);
 700         paramtypes = mi->parseddesc->paramtypes;
 701
 702         for (i=0; i<mi->parseddesc->paramcount; ++i) {
 703                 if (paramtypes[i].type == TYPE_ADR) {
 704                         if (ref->paramconstraints) {
 705                                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 706                                                         ref->paramconstraints + i,
 707                                                         CLASSREF_OR_CLASSINFO(paramtypes[i].classref),
 708                                                         false,
 709                                                         mode,
 710                                                         resolveLinkageError,&checked))
 711                                 {
 712                                         return false; /* exception */
 713                                 }
 714                                 if (!checked)
 715                                         return true; /* be lazy */
 716                         }
 717                 }
 718         }
 719
 720         /* check access rights */
 721         if (!is_accessible_member(referer,declarer,mi->flags)) {
 722                 *exceptionptr = new_exception_message(string_java_lang_IllegalAccessException,
 723                                 "method is not accessible XXX add message");
 724                 return false; /* exception */
 725         }
 726
 727         /* check protected access */
 728         if (((mi->flags & ACC_PROTECTED) != 0) && !SAME_PACKAGE(declarer,referer)) {
 729                 if (!resolve_and_check_subtype_set(referer,ref->referermethod,
 730                                                                                    &(ref->instancetypes),
 731                                                                                    CLASSREF_OR_CLASSINFO(referer),
 732                                                                                    false,
 733                                                                                    mode,
 734                                                                                    resolveIllegalAccessError,&checked))
 735                 {
 736                         return false; /* exception */
 737                 }
 738                 if (!checked)
 739                         return true; /* be lazy */
 740         }
 741
 742         /* impose loading constraints on parameters (including instance) */
 743         paramtypes = mi->parseddesc->paramtypes - instancecount;
 744         for (i=0; i<mi->parseddesc->paramcount + instancecount; ++i) {
 745                 if (i<instancecount || paramtypes[i].type == TYPE_ADR) {
 746                         utf *name;
 747
 748                         if (i < instancecount)
 749                                 name = container->name; /* XXX should this be declarer->name? */
 750                         else
 751                                 name = paramtypes[i].classref->name;
 752
 753                         if (!classcache_add_constraint(referer->classloader,declarer->classloader,name))
 754                                 return false; /* exception */
 755                 }
 756         }
 757
 758         /* impose loading constraing onto return type */
 759         if (ref->methodref->parseddesc.md->returntype.type == TYPE_ADR) {
 760                 if (!classcache_add_constraint(referer->classloader,declarer->classloader,
 761                                 ref->methodref->parseddesc.md->returntype.classref->name))
 762                         return false; /* exception */
 763         }
 764
 765         /* succeed */
 766         *result = mi;
 767         return true;
 768 }
 769
 770 /******************************************************************************/
 771 /* CREATING THE DATA STRUCTURES                                               */
 772 /******************************************************************************/
 773
 774 static bool
 775 unresolved_subtype_set_from_typeinfo(classinfo *referer,methodinfo *refmethod,
 776                 unresolved_subtype_set *stset,typeinfo *tinfo,
 777                 constant_classref *declaredtype)
 778 {
 779         int count;
 780         int i;
 781
 782         RESOLVE_ASSERT(stset);
 783         RESOLVE_ASSERT(tinfo);
 784
 785 #ifdef RESOLVE_VERBOSE
 786         fprintf(stderr,"unresolved_subtype_set_from_typeinfo\n");
 787 #ifdef TYPEINFO_DEBUG
 788         /*typeinfo_print(stderr,tinfo,4);*/
 789         fprintf(stderr,"\n");
 790 #endif
 791         fprintf(stderr,"    declared type:");utf_fprint(stderr,declaredtype->name);
 792         fprintf(stderr,"\n");
 793 #endif
 794
 795         if (TYPEINFO_IS_PRIMITIVE(*tinfo)) {
 796                 *exceptionptr = new_verifyerror(refmethod,
 797                                 "Invalid use of returnAddress");
 798                 return false;
 799         }
 800
 801         if (TYPEINFO_IS_NEWOBJECT(*tinfo)) {
 802                 *exceptionptr = new_verifyerror(refmethod,
 803                                 "Invalid use of uninitialized object");
 804                 return false;
 805         }
 806
 807         /* the nulltype is always assignable (XXX for reversed?) */
 808         if (TYPEINFO_IS_NULLTYPE(*tinfo))
 809                 goto empty_set;
 810
 811         /* every type is assignable to (BOOTSTRAP)java.lang.Object */
 812         if (declaredtype->name == utf_java_lang_Object
 813                         && referer->classloader == NULL)
 814         {
 815                 goto empty_set;
 816         }
 817
 818         if (tinfo->merged) {
 819                 count = tinfo->merged->count;
 820                 stset->subtyperefs = MNEW(classref_or_classinfo,count + 1);
 821                 for (i=0; i<count; ++i) {
 822                         stset->subtyperefs[i] = tinfo->merged->list[i];
 823                 }
 824                 stset->subtyperefs[count].any = NULL; /* terminate */
 825         }
 826         else {
 827                 if ((IS_CLASSREF(tinfo->typeclass)
 828                                         ? tinfo->typeclass.ref->name
 829                                         : tinfo->typeclass.cls->name) == declaredtype->name)
 830                 {
 831                         goto empty_set;
 832                 }
 833                 else {
 834                         stset->subtyperefs = MNEW(classref_or_classinfo,1 + 1);
 835                         stset->subtyperefs[0] = tinfo->typeclass;
 836                         stset->subtyperefs[1].any = NULL; /* terminate */
 837                 }
 838         }
 839
 840         return true;
 841
 842 empty_set:
 843         UNRESOLVED_SUBTYPE_SET_EMTPY(*stset);
 844         return true;
 845 }
 846
 847 unresolved_class *
 848 create_unresolved_class(methodinfo *refmethod,
 849                                                 constant_classref *classref,
 850                                                 typeinfo *valuetype)
 851 {
 852         unresolved_class *ref;
 853
 854         RESOLVE_ASSERT(ref);
 855
 856 #ifdef RESOLVE_VERBOSE
 857         fprintf(stderr,"create_unresolved_class\n");
 858         fprintf(stderr,"    referer: ");utf_fprint(stderr,classref->referer->name);fputc('\n',stderr);
 859         fprintf(stderr,"    rmethod: ");utf_fprint(stderr,refmethod->name);fputc('\n',stderr);
 860         fprintf(stderr,"    rmdesc : ");utf_fprint(stderr,refmethod->descriptor);fputc('\n',stderr);
 861         fprintf(stderr,"    name   : ");utf_fprint(stderr,classref->name);fputc('\n',stderr);
 862 #endif
 863
 864         ref = NEW(unresolved_class);
 865         ref->classref = classref;
 866         ref->referermethod = refmethod;
 867
 868         if (valuetype) {
 869                 if (!unresolved_subtype_set_from_typeinfo(classref->referer,refmethod,
 870                                         &(ref->subtypeconstraints),valuetype,classref))
 871                         return NULL;
 872         }
 873         else {
 874                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->subtypeconstraints);
 875         }
 876
 877         return ref;
 878 }
 879
 880 unresolved_field *
 881 create_unresolved_field(classinfo *referer,methodinfo *refmethod,
 882                                                 instruction *iptr,
 883                                                 stackelement *stack)
 884 {
 885         unresolved_field *ref;
 886         constant_FMIref *fieldref = NULL;
 887         stackelement *instanceslot = NULL;
 888         int type;
 889         typeinfo tinfo;
 890         typeinfo *tip = NULL;
 891         typedesc *fd;
 892
 893 #ifdef RESOLVE_VERBOSE
 894         fprintf(stderr,"create_unresolved_field\n");
 895         fprintf(stderr,"    referer: ");utf_fprint(stderr,referer->name);fputc('\n',stderr);
 896         fprintf(stderr,"    rmethod: ");utf_fprint(stderr,refmethod->name);fputc('\n',stderr);
 897         fprintf(stderr,"    rmdesc : ");utf_fprint(stderr,refmethod->descriptor);fputc('\n',stderr);
 898 #endif
 899
 900         ref = NEW(unresolved_field);
 901         ref->flags = 0;
 902         ref->referermethod = refmethod;
 903
 904         switch (iptr[0].opc) {
 905                 case ICMD_PUTFIELD:
 906                         ref->flags |= RESOLVE_PUTFIELD;
 907                         if (stack) {
 908                                 instanceslot = stack->prev;
 909                                 tip = &(stack->typeinfo);
 910                         }
 911                         fieldref = (constant_FMIref *) iptr[0].val.a;
 912                         break;
 913
 914                 case ICMD_PUTFIELDCONST:
 915                         ref->flags |= RESOLVE_PUTFIELD;
 916                         if (stack) instanceslot = stack;
 917                         fieldref = INSTRUCTION_PUTCONST_FIELDREF(iptr);
 918                         break;
 919
 920                 case ICMD_PUTSTATIC:
 921                         ref->flags |= RESOLVE_PUTFIELD | RESOLVE_STATIC;
 922                         fieldref = (constant_FMIref *) iptr[0].val.a;
 923                         if (stack) tip = &(stack->typeinfo);
 924                         break;
 925
 926                 case ICMD_PUTSTATICCONST:
 927                         ref->flags |= RESOLVE_PUTFIELD | RESOLVE_STATIC;
 928                         fieldref = INSTRUCTION_PUTCONST_FIELDREF(iptr);
 929                         break;
 930
 931                 case ICMD_GETFIELD:
 932                         if (stack) instanceslot = stack;
 933                         fieldref = (constant_FMIref *) iptr[0].val.a;
 934                         break;
 935
 936                 case ICMD_GETSTATIC:
 937                         ref->flags |= RESOLVE_STATIC;
 938                         fieldref = (constant_FMIref *) iptr[0].val.a;
 939                         break;
 940         }
 941
 942         RESOLVE_ASSERT(fieldref);
 943         RESOLVE_ASSERT(!stack || instanceslot || ((ref->flags & RESOLVE_STATIC) != 0));
 944         fd = fieldref->parseddesc.fd;
 945         RESOLVE_ASSERT(fd);
 946
 947 #ifdef RESOLVE_VERBOSE
 948         fprintf(stderr,"    class  : ");utf_fprint(stderr,fieldref->classref->name);fputc('\n',stderr);
 949         fprintf(stderr,"    name   : ");utf_fprint(stderr,fieldref->name);fputc('\n',stderr);
 950         fprintf(stderr,"    desc   : ");utf_fprint(stderr,fieldref->descriptor);fputc('\n',stderr);
 951         fprintf(stderr,"    type   : ");descriptor_debug_print_typedesc(stderr,fieldref->parseddesc.fd);
 952         fputc('\n',stderr);
 953         /*fprintf(stderr,"    opcode : %d %s\n",iptr[0].opc,icmd_names[iptr[0].opc]);*/
 954 #endif
 955
 956         ref->fieldref = fieldref;
 957
 958         /* record subtype constraints for the instance type, if any */
 959         if (instanceslot) {
 960                 typeinfo *insttip;
 961                 RESOLVE_ASSERT(instanceslot->type == TYPE_ADR);
 962
 963                 if (((ref->flags & RESOLVE_PUTFIELD) != 0) &&
 964                                 TYPEINFO_IS_NEWOBJECT(instanceslot->typeinfo))
 965                 {   /* XXX clean up */
 966                         instruction *ins = (instruction*)TYPEINFO_NEWOBJECT_INSTRUCTION(instanceslot->typeinfo);
 967                         classinfo *initclass = (ins) ? (classinfo*)ins[-1].val.a
 968                                                                                  : refmethod->class; /* XXX classrefs */
 969                         RESOLVE_ASSERT(initclass->loaded && initclass->linked);
 970                         TYPEINFO_INIT_CLASSINFO(tinfo,initclass);
 971                         insttip = &tinfo;
 972                 }
 973                 else {
 974                         insttip = &(instanceslot->typeinfo);
 975                 }
 976                 if (!unresolved_subtype_set_from_typeinfo(referer,refmethod,
 977                                         &(ref->instancetypes),insttip,fieldref->classref))
 978                         return NULL;
 979         }
 980         else {
 981                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->instancetypes);
 982         }
 983
 984         /* record subtype constraints for the value type, if any */
 985         type = fd->type;
 986         if (stack && type == TYPE_ADR && ((ref->flags & RESOLVE_PUTFIELD) != 0)) {
 987                 if (!tip) {
 988                         /* we have a PUTSTATICCONST or PUTFIELDCONST with TYPE_ADR */
 989                         tip = &tinfo;
 990                         if (INSTRUCTION_PUTCONST_VALUE_ADR(iptr)) {
 991                                 RESOLVE_ASSERT(class_java_lang_String);
 992                                 RESOLVE_ASSERT(class_java_lang_String->loaded);
 993                                 RESOLVE_ASSERT(class_java_lang_String->linked);
 994                                 TYPEINFO_INIT_CLASSINFO(tinfo,class_java_lang_String);
 995                         }
 996                         else
 997                                 TYPEINFO_INIT_NULLTYPE(tinfo);
 998                 }
 999                 if (!unresolved_subtype_set_from_typeinfo(referer,refmethod,
1000                                         &(ref->valueconstraints),tip,fieldref->parseddesc.fd->classref))
1001                         return NULL;
1002         }
1003         else {
1004                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->valueconstraints);
1005         }
1006
1007         return ref;
1008 }
1009
1010 unresolved_method *
1011 create_unresolved_method(classinfo *referer,methodinfo *refmethod,
1012                                                  instruction *iptr,
1013                                                  stackelement *stack)
1014 {
1015         unresolved_method *ref;
1016         constant_FMIref *methodref;
1017         stackelement *instanceslot = NULL;
1018         stackelement *param;
1019         methoddesc *md;
1020         typeinfo tinfo;
1021         int i,j;
1022         int type;
1023
1024         methodref = (constant_FMIref *) iptr[0].val.a;
1025         RESOLVE_ASSERT(methodref);
1026         md = methodref->parseddesc.md;
1027         RESOLVE_ASSERT(md);
1028
1029 #ifdef RESOLVE_VERBOSE
1030         fprintf(stderr,"create_unresolved_method\n");
1031         fprintf(stderr,"    referer: ");utf_fprint(stderr,referer->name);fputc('\n',stderr);
1032         fprintf(stderr,"    rmethod: ");utf_fprint(stderr,refmethod->name);fputc('\n',stderr);
1033         fprintf(stderr,"    rmdesc : ");utf_fprint(stderr,refmethod->descriptor);fputc('\n',stderr);
1034         fprintf(stderr,"    class  : ");utf_fprint(stderr,methodref->classref->name);fputc('\n',stderr);
1035         fprintf(stderr,"    name   : ");utf_fprint(stderr,methodref->name);fputc('\n',stderr);
1036         fprintf(stderr,"    desc   : ");utf_fprint(stderr,methodref->descriptor);fputc('\n',stderr);
1037         /*fprintf(stderr,"    opcode : %d %s\n",iptr[0].opc,icmd_names[iptr[0].opc]);*/
1038 #endif
1039
1040         ref = NEW(unresolved_method);
1041         ref->flags = 0;
1042         ref->referermethod = refmethod;
1043         ref->methodref = methodref;
1044         ref->paramconstraints = NULL;
1045
1046         switch (iptr[0].opc) {
1047                 case ICMD_INVOKESTATIC:
1048                         ref->flags |= RESOLVE_STATIC;
1049                         break;
1050                 case ICMD_INVOKEVIRTUAL:
1051                 case ICMD_INVOKESPECIAL:
1052                 case ICMD_INVOKEINTERFACE:
1053                         break;
1054                 default:
1055                         RESOLVE_ASSERT(false);
1056         }
1057
1058         if (stack && (ref->flags & RESOLVE_STATIC) == 0) {
1059                 /* find the instance slot under all the parameter slots on the stack */
1060                 instanceslot = stack;
1061                 for (i=0; i<md->paramcount; ++i)
1062                         instanceslot = instanceslot->prev;
1063         }
1064
1065         RESOLVE_ASSERT(!stack || instanceslot || ((ref->flags & RESOLVE_STATIC) != 0));
1066
1067         /* record subtype constraints for the instance type, if any */
1068         if (instanceslot) {
1069                 typeinfo *tip;
1070
1071                 RESOLVE_ASSERT(instanceslot->type == TYPE_ADR);
1072
1073                 if (iptr[0].opc == ICMD_INVOKESPECIAL &&
1074                                 TYPEINFO_IS_NEWOBJECT(instanceslot->typeinfo))
1075                 {   /* XXX clean up */
1076                         instruction *ins = (instruction*)TYPEINFO_NEWOBJECT_INSTRUCTION(instanceslot->typeinfo);
1077                         classinfo *initclass = (ins) ? (classinfo*)ins[-1].val.a
1078                                                                                  : refmethod->class; /* XXX classrefs */
1079                         RESOLVE_ASSERT(initclass->loaded && initclass->linked);
1080                         TYPEINFO_INIT_CLASSINFO(tinfo,initclass);
1081                         tip = &tinfo;
1082                 }
1083                 else {
1084                         tip = &(instanceslot->typeinfo);
1085                 }
1086                 if (!unresolved_subtype_set_from_typeinfo(referer,refmethod,
1087                                         &(ref->instancetypes),tip,methodref->classref))
1088                         return NULL;
1089         }
1090         else {
1091                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->instancetypes);
1092         }
1093
1094         /* record subtype constraints for the parameter types, if any */
1095         if (stack) {
1096                 param = stack;
1097                 for (i=md->paramcount-1; i>=0; --i, param=param->prev) {
1098                         type = md->paramtypes[i].type;
1099
1100                         RESOLVE_ASSERT(param);
1101                         RESOLVE_ASSERT(type == param->type);
1102
1103                         if (type == TYPE_ADR) {
1104                                 if (!ref->paramconstraints) {
1105                                         ref->paramconstraints = MNEW(unresolved_subtype_set,md->paramcount);
1106                                         for (j=md->paramcount-1; j>i; --j)
1107                                                 UNRESOLVED_SUBTYPE_SET_EMTPY(ref->paramconstraints[j]);
1108                                 }
1109                                 RESOLVE_ASSERT(ref->paramconstraints);
1110                                 if (!unresolved_subtype_set_from_typeinfo(referer,refmethod,
1111                                                         ref->paramconstraints + i,&(param->typeinfo),
1112                                                         md->paramtypes[i].classref))
1113                                         return NULL;
1114                         }
1115                         else {
1116                                 if (ref->paramconstraints)
1117                                         UNRESOLVED_SUBTYPE_SET_EMTPY(ref->paramconstraints[i]);
1118                         }
1119                 }
1120         }
1121
1122         return ref;
1123 }
1124
1125 /******************************************************************************/
1126 /* FREEING MEMORY                                                             */
1127 /******************************************************************************/
1128
1129 inline static void
1130 unresolved_subtype_set_free_list(classref_or_classinfo *list)
1131 {
1132         if (list) {
1133                 classref_or_classinfo *p = list;
1134
1135                 /* this is silly. we *only* need to count the elements for MFREE */
1136                 while ((p++)->any)
1137                         ;
1138                 MFREE(list,classref_or_classinfo,(p - list));
1139         }
1140 }
1141
1142 /* unresolved_class_free *******************************************************
1143
1144    Free the memory used by an unresolved_class
1145
1146    IN:
1147        ref..............the unresolved_class
1148
1149 *******************************************************************************/
1150
1151 void
1152 unresolved_class_free(unresolved_class *ref)
1153 {
1154         RESOLVE_ASSERT(ref);
1155
1156         unresolved_subtype_set_free_list(ref->subtypeconstraints.subtyperefs);
1157         FREE(ref,unresolved_class);
1158 }
1159
1160 /* unresolved_field_free *******************************************************
1161
1162    Free the memory used by an unresolved_field
1163
1164    IN:
1165        ref..............the unresolved_field
1166
1167 *******************************************************************************/
1168
1169 void
1170 unresolved_field_free(unresolved_field *ref)
1171 {
1172         RESOLVE_ASSERT(ref);
1173
1174         unresolved_subtype_set_free_list(ref->instancetypes.subtyperefs);
1175         unresolved_subtype_set_free_list(ref->valueconstraints.subtyperefs);
1176         FREE(ref,unresolved_field);
1177 }
1178
1179 /* unresolved_method_free ******************************************************
1180
1181    Free the memory used by an unresolved_method
1182
1183    IN:
1184        ref..............the unresolved_method
1185
1186 *******************************************************************************/
1187
1188 void
1189 unresolved_method_free(unresolved_method *ref)
1190 {
1191         RESOLVE_ASSERT(ref);
1192
1193         unresolved_subtype_set_free_list(ref->instancetypes.subtyperefs);
1194         if (ref->paramconstraints) {
1195                 int i;
1196                 int count = ref->methodref->parseddesc.md->paramcount;
1197
1198                 for (i=0; i<count; ++i)
1199                         unresolved_subtype_set_free_list(ref->paramconstraints[i].subtyperefs);
1200                 MFREE(ref->paramconstraints,unresolved_subtype_set,count);
1201         }
1202         FREE(ref,unresolved_method);
1203 }
1204
1205 /******************************************************************************/
1206 /* DEBUG DUMPS                                                                */
1207 /******************************************************************************/
1208
1209 /* unresolved_subtype_set_debug_dump *******************************************
1210
1211    Print debug info for unresolved_subtype_set to stream
1212
1213    IN:
1214        stset............the unresolved_subtype_set
1215            file.............the stream
1216
1217 *******************************************************************************/
1218
1219 void
1220 unresolved_subtype_set_debug_dump(unresolved_subtype_set *stset,FILE *file)
1221 {
1222         classref_or_classinfo *p;
1223
1224         if (SUBTYPESET_IS_EMPTY(*stset)) {
1225                 fprintf(file,"        (empty)\n");
1226         }
1227         else {
1228                 p = stset->subtyperefs;
1229                 for (;p->any; ++p) {
1230                         if (IS_CLASSREF(*p)) {
1231                                 fprintf(file,"        ref: ");
1232                                 utf_fprint(file,p->ref->name);
1233                         }
1234                         else {
1235                                 fprintf(file,"        cls: ");
1236                                 utf_fprint(file,p->cls->name);
1237                         }
1238                         fputc('\n',file);
1239                 }
1240         }
1241 }
1242
1243 /* unresolved_class_debug_dump *************************************************
1244
1245    Print debug info for unresolved_class to stream
1246
1247    IN:
1248        ref..............the unresolved_class
1249            file.............the stream
1250
1251 *******************************************************************************/
1252
1253 void
1254 unresolved_class_debug_dump(unresolved_class *ref,FILE *file)
1255 {
1256         fprintf(file,"unresolved_class(%p):\n",(void *)ref);
1257         if (ref) {
1258                 fprintf(file,"    referer   : ");
1259                 utf_fprint(file,ref->classref->referer->name); fputc('\n',file);
1260                 fprintf(file,"    refmethod  : ");
1261                 utf_fprint(file,ref->referermethod->name); fputc('\n',file);
1262                 fprintf(file,"    refmethodd : ");
1263                 utf_fprint(file,ref->referermethod->descriptor); fputc('\n',file);
1264                 fprintf(file,"    classname : ");
1265                 utf_fprint(file,ref->classref->name); fputc('\n',file);
1266                 fprintf(file,"    subtypeconstraints:\n");
1267                 unresolved_subtype_set_debug_dump(&(ref->subtypeconstraints),file);
1268         }
1269 }
1270
1271 /* unresolved_field_debug_dump *************************************************
1272
1273    Print debug info for unresolved_field to stream
1274
1275    IN:
1276        ref..............the unresolved_field
1277            file.............the stream
1278
1279 *******************************************************************************/
1280
1281 void
1282 unresolved_field_debug_dump(unresolved_field *ref,FILE *file)
1283 {
1284         fprintf(file,"unresolved_field(%p):\n",(void *)ref);
1285         if (ref) {
1286                 fprintf(file,"    referer   : ");
1287                 utf_fprint(file,ref->fieldref->classref->referer->name); fputc('\n',file);
1288                 fprintf(file,"    refmethod  : ");
1289                 utf_fprint(file,ref->referermethod->name); fputc('\n',file);
1290                 fprintf(file,"    refmethodd : ");
1291                 utf_fprint(file,ref->referermethod->descriptor); fputc('\n',file);
1292                 fprintf(file,"    classname : ");
1293                 utf_fprint(file,ref->fieldref->classref->name); fputc('\n',file);
1294                 fprintf(file,"    name      : ");
1295                 utf_fprint(file,ref->fieldref->name); fputc('\n',file);
1296                 fprintf(file,"    descriptor: ");
1297                 utf_fprint(file,ref->fieldref->descriptor); fputc('\n',file);
1298                 fprintf(file,"    parseddesc: ");
1299                 descriptor_debug_print_typedesc(file,ref->fieldref->parseddesc.fd); fputc('\n',file);
1300                 fprintf(file,"    flags     : %04x\n",ref->flags);
1301                 fprintf(file,"    instancetypes:\n");
1302                 unresolved_subtype_set_debug_dump(&(ref->instancetypes),file);
1303                 fprintf(file,"    valueconstraints:\n");
1304                 unresolved_subtype_set_debug_dump(&(ref->valueconstraints),file);
1305         }
1306 }
1307
1308 /* unresolved_method_debug_dump ************************************************
1309
1310    Print debug info for unresolved_method to stream
1311
1312    IN:
1313        ref..............the unresolved_method
1314            file.............the stream
1315
1316 *******************************************************************************/
1317
1318 void
1319 unresolved_method_debug_dump(unresolved_method *ref,FILE *file)
1320 {
1321         int i;
1322
1323         fprintf(file,"unresolved_method(%p):\n",(void *)ref);
1324         if (ref) {
1325                 fprintf(file,"    referer   : ");
1326                 utf_fprint(file,ref->methodref->classref->referer->name); fputc('\n',file);
1327                 fprintf(file,"    refmethod  : ");
1328                 utf_fprint(file,ref->referermethod->name); fputc('\n',file);
1329                 fprintf(file,"    refmethodd : ");
1330                 utf_fprint(file,ref->referermethod->descriptor); fputc('\n',file);
1331                 fprintf(file,"    classname : ");
1332                 utf_fprint(file,ref->methodref->classref->name); fputc('\n',file);
1333                 fprintf(file,"    name      : ");
1334                 utf_fprint(file,ref->methodref->name); fputc('\n',file);
1335                 fprintf(file,"    descriptor: ");
1336                 utf_fprint(file,ref->methodref->descriptor); fputc('\n',file);
1337                 fprintf(file,"    parseddesc: ");
1338                 descriptor_debug_print_methoddesc(file,ref->methodref->parseddesc.md); fputc('\n',file);
1339                 fprintf(file,"    flags     : %04x\n",ref->flags);
1340                 fprintf(file,"    instancetypes:\n");
1341                 unresolved_subtype_set_debug_dump(&(ref->instancetypes),file);
1342                 fprintf(file,"    paramconstraints:\n");
1343                 if (ref->paramconstraints) {
1344                         for (i=0; i<ref->methodref->parseddesc.md->paramcount; ++i) {
1345                                 fprintf(file,"      param %d:\n",i);
1346                                 unresolved_subtype_set_debug_dump(ref->paramconstraints + i,file);
1347                         }
1348                 }
1349                 else {
1350                         fprintf(file,"      (empty)\n");
1351                 }
1352         }
1353 }
1354
1355 /*
1356  * These are local overrides for various environment variables in Emacs.
1357  * Please do not remove this and leave it at the end of the file, where
1358  * Emacs will automagically detect them.
1359  * ---------------------------------------------------------------------
1360  * Local variables:
1361  * mode: c
1362  * indent-tabs-mode: t
1363  * c-basic-offset: 4
1364  * tab-width: 4
1365  * End:
1366  * vim:noexpandtab:sw=4:ts=4:
1367  */
1368