Mercurial > projects > ldc
annotate dmd/dsymbol.c @ 136:0e28624814e8 trunk
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
| author | lindquist |
|---|---|
| date | Thu, 17 Jan 2008 03:15:12 +0100 |
| parents | 027b8d8b71ec |
| children | ccd07d9f2ce9 |
| rev | line source |
|---|---|
| 1 | 1 |
| 2 // Compiler implementation of the D programming language | |
| 3 // Copyright (c) 1999-2007 by Digital Mars | |
| 4 // All Rights Reserved | |
| 5 // written by Walter Bright | |
| 6 // http://www.digitalmars.com | |
| 7 // License for redistribution is by either the Artistic License | |
| 8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
| 9 // See the included readme.txt for details. | |
| 10 | |
| 11 #include <stdio.h> | |
| 12 #include <string.h> | |
| 13 #include <assert.h> | |
| 14 | |
| 15 #include "mem.h" | |
| 16 | |
| 17 #include "mars.h" | |
| 18 #include "dsymbol.h" | |
| 19 #include "aggregate.h" | |
| 20 #include "identifier.h" | |
| 21 #include "module.h" | |
| 22 #include "mtype.h" | |
| 23 #include "expression.h" | |
| 24 #include "statement.h" | |
| 25 #include "declaration.h" | |
| 26 #include "id.h" | |
| 27 #include "scope.h" | |
| 28 #include "init.h" | |
| 29 #include "import.h" | |
| 30 #include "template.h" | |
| 31 | |
| 32 #include "../gen/enums.h" | |
| 33 | |
| 34 /****************************** Dsymbol ******************************/ | |
| 35 | |
| 36 Dsymbol::Dsymbol() | |
| 37 { | |
| 38 //printf("Dsymbol::Dsymbol(%p)\n", this); | |
| 39 this->ident = NULL; | |
| 40 this->c_ident = NULL; | |
| 41 this->parent = NULL; | |
| 42 this->csym = NULL; | |
| 43 this->isym = NULL; | |
| 44 this->loc = 0; | |
| 45 this->comment = NULL; | |
|
136
0e28624814e8
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
lindquist
parents:
102
diff
changeset
|
46 |
| 1 | 47 this->llvmInternal = LLVMnone; |
| 48 this->llvmInternal1 = NULL; | |
| 49 this->llvmInternal2 = NULL; | |
|
136
0e28624814e8
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
lindquist
parents:
102
diff
changeset
|
50 |
|
0e28624814e8
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
lindquist
parents:
102
diff
changeset
|
51 //this->llvmValue = NULL; |
|
55
0ccfae271c45
[svn r59] Added support for C-style variadic functions. Currently only works on x86, x86-64 va_arg is broken in LLVM 2.1. PPC and PPC64 unknown.
lindquist
parents:
19
diff
changeset
|
52 this->llvmDModule = NULL; |
|
102
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
53 |
|
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
54 this->llvmResolved = false; |
|
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
55 this->llvmDeclared = false; |
|
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
56 this->llvmInitialized = false; |
|
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
57 this->llvmDefined = false; |
| 1 | 58 } |
| 59 | |
| 60 Dsymbol::Dsymbol(Identifier *ident) | |
| 61 { | |
| 62 //printf("Dsymbol::Dsymbol(%p, ident)\n", this); | |
| 63 this->ident = ident; | |
| 64 this->c_ident = NULL; | |
| 65 this->parent = NULL; | |
| 66 this->csym = NULL; | |
| 67 this->isym = NULL; | |
| 68 this->loc = 0; | |
| 69 this->comment = NULL; | |
|
136
0e28624814e8
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
lindquist
parents:
102
diff
changeset
|
70 |
| 1 | 71 this->llvmInternal = LLVMnone; |
| 72 this->llvmInternal1 = NULL; | |
| 73 this->llvmInternal2 = NULL; | |
|
136
0e28624814e8
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
lindquist
parents:
102
diff
changeset
|
74 |
|
0e28624814e8
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
lindquist
parents:
102
diff
changeset
|
75 //this->llvmValue = NULL; |
| 1 | 76 this->llvmDModule = NULL; |
|
102
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
77 |
|
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
78 this->llvmResolved = false; |
|
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
79 this->llvmDeclared = false; |
|
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
80 this->llvmInitialized = false; |
|
027b8d8b71ec
[svn r106] Turns out the last commit wasn't enough, now the D->LLVM process is even more split up.
lindquist
parents:
100
diff
changeset
|
81 this->llvmDefined = false; |
| 1 | 82 } |
| 83 | |
| 84 int Dsymbol::equals(Object *o) | |
| 85 { Dsymbol *s; | |
| 86 | |
| 87 if (this == o) | |
| 88 return TRUE; | |
| 89 s = (Dsymbol *)(o); | |
| 90 if (s && ident->equals(s->ident)) | |
| 91 return TRUE; | |
| 92 return FALSE; | |
| 93 } | |
| 94 | |
| 95 /************************************** | |
| 96 * Copy the syntax. | |
| 97 * Used for template instantiations. | |
| 98 * If s is NULL, allocate the new object, otherwise fill it in. | |
| 99 */ | |
| 100 | |
| 101 Dsymbol *Dsymbol::syntaxCopy(Dsymbol *s) | |
| 102 { | |
| 103 print(); | |
| 104 printf("%s %s\n", kind(), toChars()); | |
| 105 assert(0); | |
| 106 return NULL; | |
| 107 } | |
| 108 | |
| 109 /************************************** | |
| 110 * Determine if this symbol is only one. | |
| 111 * Returns: | |
| 112 * FALSE, *ps = NULL: There are 2 or more symbols | |
| 113 * TRUE, *ps = NULL: There are zero symbols | |
| 114 * TRUE, *ps = symbol: The one and only one symbol | |
| 115 */ | |
| 116 | |
| 117 int Dsymbol::oneMember(Dsymbol **ps) | |
| 118 { | |
| 119 //printf("Dsymbol::oneMember()\n"); | |
| 120 *ps = this; | |
| 121 return TRUE; | |
| 122 } | |
| 123 | |
| 124 /***************************************** | |
| 125 * Same as Dsymbol::oneMember(), but look at an array of Dsymbols. | |
| 126 */ | |
| 127 | |
| 128 int Dsymbol::oneMembers(Array *members, Dsymbol **ps) | |
| 129 { | |
| 130 //printf("Dsymbol::oneMembers() %d\n", members ? members->dim : 0); | |
| 131 Dsymbol *s = NULL; | |
| 132 | |
| 133 if (members) | |
| 134 { | |
| 135 for (int i = 0; i < members->dim; i++) | |
| 136 { Dsymbol *sx = (Dsymbol *)members->data[i]; | |
| 137 | |
| 138 int x = sx->oneMember(ps); | |
| 139 //printf("\t[%d] kind %s = %d, s = %p\n", i, sx->kind(), x, *ps); | |
| 140 if (!x) | |
| 141 { | |
| 142 //printf("\tfalse 1\n"); | |
| 143 assert(*ps == NULL); | |
| 144 return FALSE; | |
| 145 } | |
| 146 if (*ps) | |
| 147 { | |
| 148 if (s) // more than one symbol | |
| 149 { *ps = NULL; | |
| 150 //printf("\tfalse 2\n"); | |
| 151 return FALSE; | |
| 152 } | |
| 153 s = *ps; | |
| 154 } | |
| 155 } | |
| 156 } | |
| 157 *ps = s; // s is the one symbol, NULL if none | |
| 158 //printf("\ttrue\n"); | |
| 159 return TRUE; | |
| 160 } | |
| 161 | |
| 162 /***************************************** | |
| 163 * Is Dsymbol a variable that contains pointers? | |
| 164 */ | |
| 165 | |
| 166 int Dsymbol::hasPointers() | |
| 167 { | |
| 168 //printf("Dsymbol::hasPointers() %s\n", toChars()); | |
| 169 return 0; | |
| 170 } | |
| 171 | |
| 172 char *Dsymbol::toChars() | |
| 173 { | |
| 174 return ident ? ident->toChars() : (char *)"__anonymous"; | |
| 175 } | |
| 176 | |
| 177 char *Dsymbol::toPrettyChars() | |
| 178 { Dsymbol *p; | |
| 179 char *s; | |
| 180 char *q; | |
| 181 size_t len; | |
| 182 | |
| 183 //printf("Dsymbol::toPrettyChars() '%s'\n", toChars()); | |
| 184 if (!parent) | |
| 185 return toChars(); | |
| 186 | |
| 187 len = 0; | |
| 188 for (p = this; p; p = p->parent) | |
| 189 len += strlen(p->toChars()) + 1; | |
| 190 | |
| 191 s = (char *)mem.malloc(len); | |
| 192 q = s + len - 1; | |
| 193 *q = 0; | |
| 194 for (p = this; p; p = p->parent) | |
| 195 { | |
| 196 char *t = p->toChars(); | |
| 197 len = strlen(t); | |
| 198 q -= len; | |
| 199 memcpy(q, t, len); | |
| 200 if (q == s) | |
| 201 break; | |
| 202 q--; | |
| 203 *q = '.'; | |
| 204 } | |
| 205 return s; | |
| 206 } | |
| 207 | |
| 208 char *Dsymbol::locToChars() | |
| 209 { | |
| 210 OutBuffer buf; | |
| 211 char *p; | |
| 212 | |
| 213 Module *m = getModule(); | |
| 214 | |
| 215 if (m && m->srcfile) | |
| 216 loc.filename = m->srcfile->toChars(); | |
| 217 return loc.toChars(); | |
| 218 } | |
| 219 | |
| 220 char *Dsymbol::kind() | |
| 221 { | |
| 222 return "symbol"; | |
| 223 } | |
| 224 | |
| 225 /********************************* | |
| 226 * If this symbol is really an alias for another, | |
| 227 * return that other. | |
| 228 */ | |
| 229 | |
| 230 Dsymbol *Dsymbol::toAlias() | |
| 231 { | |
| 232 return this; | |
| 233 } | |
| 234 | |
| 235 Dsymbol *Dsymbol::toParent() | |
| 236 { | |
| 237 return parent ? parent->pastMixin() : NULL; | |
| 238 } | |
| 239 | |
| 240 Dsymbol *Dsymbol::pastMixin() | |
| 241 { | |
| 242 Dsymbol *s = this; | |
| 243 | |
| 244 //printf("Dsymbol::pastMixin() %s\n", toChars()); | |
| 245 while (s && s->isTemplateMixin()) | |
| 246 s = s->parent; | |
| 247 return s; | |
| 248 } | |
| 249 | |
| 250 /********************************** | |
| 251 * Use this instead of toParent() when looking for the | |
| 252 * 'this' pointer of the enclosing function/class. | |
| 253 */ | |
| 254 | |
| 255 Dsymbol *Dsymbol::toParent2() | |
| 256 { | |
| 257 Dsymbol *s = parent; | |
| 258 while (s && s->isTemplateInstance()) | |
| 259 s = s->parent; | |
| 260 return s; | |
| 261 } | |
| 262 | |
| 263 | |
| 264 int Dsymbol::isAnonymous() | |
| 265 { | |
| 266 return ident ? 0 : 1; | |
| 267 } | |
| 268 | |
| 269 void Dsymbol::semantic(Scope *sc) | |
| 270 { | |
| 271 error("%p has no semantic routine", this); | |
| 272 } | |
| 273 | |
| 274 void Dsymbol::semantic2(Scope *sc) | |
| 275 { | |
| 276 // Most Dsymbols have no further semantic analysis needed | |
| 277 } | |
| 278 | |
| 279 void Dsymbol::semantic3(Scope *sc) | |
| 280 { | |
| 281 // Most Dsymbols have no further semantic analysis needed | |
| 282 } | |
| 283 | |
| 284 void Dsymbol::inlineScan() | |
| 285 { | |
| 286 // Most Dsymbols have no further semantic analysis needed | |
| 287 } | |
| 288 | |
| 289 Dsymbol *Dsymbol::search(Loc loc, Identifier *ident, int flags) | |
| 290 { | |
| 291 //printf("Dsymbol::search(this=%p,%s, ident='%s')\n", this, toChars(), ident->toChars()); | |
| 292 return NULL; | |
| 293 } | |
| 294 | |
| 295 /*************************************** | |
| 296 * Search for identifier id as a member of 'this'. | |
| 297 * id may be a template instance. | |
| 298 * Returns: | |
| 299 * symbol found, NULL if not | |
| 300 */ | |
| 301 | |
| 302 Dsymbol *Dsymbol::searchX(Loc loc, Scope *sc, Identifier *id) | |
| 303 { | |
| 304 //printf("Dsymbol::searchX(this=%p,%s, ident='%s')\n", this, toChars(), ident->toChars()); | |
| 305 Dsymbol *s = toAlias(); | |
| 306 Dsymbol *sm; | |
| 307 | |
| 308 switch (id->dyncast()) | |
| 309 { | |
| 310 case DYNCAST_IDENTIFIER: | |
| 311 sm = s->search(loc, id, 0); | |
| 312 break; | |
| 313 | |
| 314 case DYNCAST_DSYMBOL: | |
| 315 { // It's a template instance | |
| 316 //printf("\ttemplate instance id\n"); | |
| 317 Dsymbol *st = (Dsymbol *)id; | |
| 318 TemplateInstance *ti = st->isTemplateInstance(); | |
| 319 id = ti->name; | |
| 320 sm = s->search(loc, id, 0); | |
| 321 if (!sm) | |
| 322 { error("template identifier %s is not a member of %s %s", | |
| 323 id->toChars(), s->kind(), s->toChars()); | |
| 324 return NULL; | |
| 325 } | |
| 326 sm = sm->toAlias(); | |
| 327 TemplateDeclaration *td = sm->isTemplateDeclaration(); | |
| 328 if (!td) | |
| 329 { | |
| 330 error("%s is not a template, it is a %s", id->toChars(), sm->kind()); | |
| 331 return NULL; | |
| 332 } | |
| 333 ti->tempdecl = td; | |
| 334 if (!ti->semanticdone) | |
| 335 ti->semantic(sc); | |
| 336 sm = ti->toAlias(); | |
| 337 break; | |
| 338 } | |
| 339 | |
| 340 default: | |
| 341 assert(0); | |
| 342 } | |
| 343 return sm; | |
| 344 } | |
| 345 | |
| 346 int Dsymbol::overloadInsert(Dsymbol *s) | |
| 347 { | |
| 348 //printf("Dsymbol::overloadInsert('%s')\n", s->toChars()); | |
| 349 return FALSE; | |
| 350 } | |
| 351 | |
| 352 void Dsymbol::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 353 { | |
| 354 buf->writestring(toChars()); | |
| 355 } | |
| 356 | |
| 357 unsigned Dsymbol::size(Loc loc) | |
| 358 { | |
| 359 error("Dsymbol '%s' has no size\n", toChars()); | |
| 360 return 0; | |
| 361 } | |
| 362 | |
| 363 int Dsymbol::isforwardRef() | |
| 364 { | |
| 365 return FALSE; | |
| 366 } | |
| 367 | |
| 368 AggregateDeclaration *Dsymbol::isThis() | |
| 369 { | |
| 370 return NULL; | |
| 371 } | |
| 372 | |
| 373 ClassDeclaration *Dsymbol::isClassMember() // are we a member of a class? | |
| 374 { | |
| 375 Dsymbol *parent = toParent(); | |
| 376 if (parent && parent->isClassDeclaration()) | |
| 377 return (ClassDeclaration *)parent; | |
| 378 return NULL; | |
| 379 } | |
| 380 | |
| 381 void Dsymbol::defineRef(Dsymbol *s) | |
| 382 { | |
| 383 assert(0); | |
| 384 } | |
| 385 | |
| 386 int Dsymbol::isExport() | |
| 387 { | |
| 388 return FALSE; | |
| 389 } | |
| 390 | |
| 391 int Dsymbol::isImportedSymbol() | |
| 392 { | |
| 393 return FALSE; | |
| 394 } | |
| 395 | |
| 396 int Dsymbol::isDeprecated() | |
| 397 { | |
| 398 return FALSE; | |
| 399 } | |
| 400 | |
| 401 LabelDsymbol *Dsymbol::isLabel() // is this a LabelDsymbol()? | |
| 402 { | |
| 403 return NULL; | |
| 404 } | |
| 405 | |
| 406 AggregateDeclaration *Dsymbol::isMember() // is this a member of an AggregateDeclaration? | |
| 407 { | |
| 408 Dsymbol *parent = toParent(); | |
| 409 return parent ? parent->isAggregateDeclaration() : NULL; | |
| 410 } | |
| 411 | |
| 412 Type *Dsymbol::getType() | |
| 413 { | |
| 414 return NULL; | |
| 415 } | |
| 416 | |
| 417 int Dsymbol::needThis() | |
| 418 { | |
| 419 return FALSE; | |
| 420 } | |
| 421 | |
| 422 int Dsymbol::addMember(Scope *sc, ScopeDsymbol *sd, int memnum) | |
| 423 { | |
| 424 //printf("Dsymbol::addMember('%s')\n", toChars()); | |
| 425 //printf("Dsymbol::addMember(this = %p, '%s' scopesym = '%s')\n", this, toChars(), sd->toChars()); | |
| 426 //printf("Dsymbol::addMember(this = %p, '%s' sd = %p, sd->symtab = %p)\n", this, toChars(), sd, sd->symtab); | |
| 427 parent = sd; | |
| 428 if (!isAnonymous()) // no name, so can't add it to symbol table | |
| 429 { | |
| 430 if (!sd->symtab->insert(this)) // if name is already defined | |
| 431 { | |
| 432 Dsymbol *s2; | |
| 433 | |
| 434 s2 = sd->symtab->lookup(ident); | |
| 435 if (!s2->overloadInsert(this)) | |
| 436 { | |
| 437 sd->multiplyDefined(0, this, s2); | |
| 438 } | |
| 439 } | |
| 440 if (sd->isAggregateDeclaration() || sd->isEnumDeclaration()) | |
| 441 { | |
| 442 if (ident == Id::__sizeof || ident == Id::alignof || ident == Id::mangleof) | |
| 443 error(".%s property cannot be redefined", ident->toChars()); | |
| 444 } | |
| 445 return 1; | |
| 446 } | |
| 447 return 0; | |
| 448 } | |
| 449 | |
| 450 void Dsymbol::error(const char *format, ...) | |
| 451 { | |
| 452 //printf("Dsymbol::error()\n"); | |
| 453 if (!global.gag) | |
| 454 { | |
| 455 char *p = locToChars(); | |
| 456 | |
| 457 if (*p) | |
| 458 fprintf(stdmsg, "%s: ", p); | |
| 459 mem.free(p); | |
| 460 | |
| 461 if (isAnonymous()) | |
| 462 fprintf(stdmsg, "%s ", kind()); | |
| 463 else | |
| 464 fprintf(stdmsg, "%s %s ", kind(), toPrettyChars()); | |
| 465 | |
| 466 va_list ap; | |
| 467 va_start(ap, format); | |
| 468 vfprintf(stdmsg, format, ap); | |
| 469 va_end(ap); | |
| 470 | |
| 471 fprintf(stdmsg, "\n"); | |
| 472 fflush(stdmsg); | |
| 473 } | |
| 474 global.errors++; | |
| 475 | |
| 476 //fatal(); | |
| 477 } | |
| 478 | |
| 479 void Dsymbol::error(Loc loc, const char *format, ...) | |
| 480 { | |
| 481 if (!global.gag) | |
| 482 { | |
| 483 char *p = loc.toChars(); | |
| 484 if (!*p) | |
| 485 p = locToChars(); | |
| 486 | |
| 487 if (*p) | |
| 488 fprintf(stdmsg, "%s: ", p); | |
| 489 mem.free(p); | |
| 490 | |
| 491 fprintf(stdmsg, "%s %s ", kind(), toPrettyChars()); | |
| 492 | |
| 493 va_list ap; | |
| 494 va_start(ap, format); | |
| 495 vfprintf(stdmsg, format, ap); | |
| 496 va_end(ap); | |
| 497 | |
| 498 fprintf(stdmsg, "\n"); | |
| 499 fflush(stdmsg); | |
| 500 } | |
| 501 | |
| 502 global.errors++; | |
| 503 | |
| 504 //fatal(); | |
| 505 } | |
| 506 | |
| 507 void Dsymbol::checkDeprecated(Loc loc, Scope *sc) | |
| 508 { | |
| 509 if (!global.params.useDeprecated && isDeprecated()) | |
| 510 { | |
| 511 // Don't complain if we're inside a deprecated symbol's scope | |
| 512 for (Dsymbol *sp = sc->parent; sp; sp = sp->parent) | |
| 513 { if (sp->isDeprecated()) | |
| 514 return; | |
| 515 } | |
| 516 | |
| 517 for (; sc; sc = sc->enclosing) | |
| 518 { | |
| 519 if (sc->scopesym && sc->scopesym->isDeprecated()) | |
| 520 return; | |
| 521 } | |
| 522 | |
| 523 error(loc, "is deprecated"); | |
| 524 } | |
| 525 } | |
| 526 | |
| 527 /********************************** | |
| 528 * Determine which Module a Dsymbol is in. | |
| 529 */ | |
| 530 | |
| 531 Module *Dsymbol::getModule() | |
| 532 { | |
| 533 Module *m; | |
| 534 Dsymbol *s; | |
| 535 | |
| 536 //printf("Dsymbol::getModule()\n"); | |
| 537 s = this; | |
| 538 while (s) | |
| 539 { | |
| 540 //printf("\ts = '%s'\n", s->toChars()); | |
| 541 m = s->isModule(); | |
| 542 if (m) | |
| 543 return m; | |
| 544 s = s->parent; | |
| 545 } | |
| 546 return NULL; | |
| 547 } | |
| 548 | |
| 549 /************************************* | |
| 550 */ | |
| 551 | |
| 552 enum PROT Dsymbol::prot() | |
| 553 { | |
| 554 return PROTpublic; | |
| 555 } | |
| 556 | |
| 557 /************************************* | |
| 558 * Do syntax copy of an array of Dsymbol's. | |
| 559 */ | |
| 560 | |
| 561 | |
| 562 Array *Dsymbol::arraySyntaxCopy(Array *a) | |
| 563 { | |
| 564 | |
| 565 Array *b = NULL; | |
| 566 if (a) | |
| 567 { | |
| 568 b = a->copy(); | |
| 569 for (int i = 0; i < b->dim; i++) | |
| 570 { | |
| 571 Dsymbol *s = (Dsymbol *)b->data[i]; | |
| 572 | |
| 573 s = s->syntaxCopy(NULL); | |
| 574 b->data[i] = (void *)s; | |
| 575 } | |
| 576 } | |
| 577 return b; | |
| 578 } | |
| 579 | |
| 580 | |
| 581 /**************************************** | |
| 582 * Add documentation comment to Dsymbol. | |
| 583 * Ignore NULL comments. | |
| 584 */ | |
| 585 | |
| 586 void Dsymbol::addComment(unsigned char *comment) | |
| 587 { | |
| 588 // if (comment) | |
| 589 // printf("adding comment '%s' to symbol %p '%s'\n", comment, this, toChars()); | |
| 590 | |
| 591 if (!this->comment) | |
| 592 this->comment = comment; | |
| 593 #if 1 | |
| 594 else if (comment && strcmp((char *)comment, (char *)this->comment)) | |
| 595 { // Concatenate the two | |
| 596 this->comment = Lexer::combineComments(this->comment, comment); | |
| 597 } | |
| 598 #endif | |
| 599 } | |
| 600 | |
| 601 | |
| 602 /********************************* ScopeDsymbol ****************************/ | |
| 603 | |
| 604 ScopeDsymbol::ScopeDsymbol() | |
| 605 : Dsymbol() | |
| 606 { | |
| 607 members = NULL; | |
| 608 symtab = NULL; | |
| 609 imports = NULL; | |
| 610 prots = NULL; | |
| 611 } | |
| 612 | |
| 613 ScopeDsymbol::ScopeDsymbol(Identifier *id) | |
| 614 : Dsymbol(id) | |
| 615 { | |
| 616 members = NULL; | |
| 617 symtab = NULL; | |
| 618 imports = NULL; | |
| 619 prots = NULL; | |
| 620 } | |
| 621 | |
| 622 Dsymbol *ScopeDsymbol::syntaxCopy(Dsymbol *s) | |
| 623 { | |
| 624 //printf("ScopeDsymbol::syntaxCopy('%s')\n", toChars()); | |
| 625 | |
| 626 ScopeDsymbol *sd; | |
| 627 if (s) | |
| 628 sd = (ScopeDsymbol *)s; | |
| 629 else | |
| 630 sd = new ScopeDsymbol(ident); | |
| 631 sd->members = arraySyntaxCopy(members); | |
| 632 return sd; | |
| 633 } | |
| 634 | |
| 635 Dsymbol *ScopeDsymbol::search(Loc loc, Identifier *ident, int flags) | |
| 636 { Dsymbol *s; | |
| 637 int i; | |
| 638 | |
| 639 //printf("%s->ScopeDsymbol::search(ident='%s', flags=x%x)\n", toChars(), ident->toChars(), flags); | |
| 640 // Look in symbols declared in this module | |
| 641 s = symtab ? symtab->lookup(ident) : NULL; | |
| 642 if (s) | |
| 643 { | |
| 644 //printf("\ts = '%s.%s'\n",toChars(),s->toChars()); | |
| 645 } | |
| 646 else if (imports) | |
| 647 { | |
| 648 // Look in imported modules | |
| 649 for (i = 0; i < imports->dim; i++) | |
| 650 { ScopeDsymbol *ss = (ScopeDsymbol *)imports->data[i]; | |
| 651 Dsymbol *s2; | |
| 652 | |
| 653 // If private import, don't search it | |
| 654 if (flags & 1 && prots[i] == PROTprivate) | |
| 655 continue; | |
| 656 | |
| 657 //printf("\tscanning import '%s', prots = %d, isModule = %p, isImport = %p\n", ss->toChars(), prots[i], ss->isModule(), ss->isImport()); | |
| 658 s2 = ss->search(loc, ident, ss->isModule() ? 1 : 0); | |
| 659 if (!s) | |
| 660 s = s2; | |
| 661 else if (s2 && s != s2) | |
| 662 { | |
| 663 if (s->toAlias() == s2->toAlias()) | |
| 664 { | |
| 665 if (s->isDeprecated()) | |
| 666 s = s2; | |
| 667 } | |
| 668 else | |
| 669 { | |
| 670 /* Two imports of the same module should be regarded as | |
| 671 * the same. | |
| 672 */ | |
| 673 Import *i1 = s->isImport(); | |
| 674 Import *i2 = s2->isImport(); | |
| 675 if (!(i1 && i2 && | |
| 676 (i1->mod == i2->mod || | |
| 677 (!i1->parent->isImport() && !i2->parent->isImport() && | |
| 678 i1->ident->equals(i2->ident)) | |
| 679 ) | |
| 680 ) | |
| 681 ) | |
| 682 { | |
| 683 ss->multiplyDefined(loc, s, s2); | |
| 684 break; | |
| 685 } | |
| 686 } | |
| 687 } | |
| 688 } | |
| 689 if (s) | |
| 690 { | |
| 691 Declaration *d = s->isDeclaration(); | |
| 692 if (d && d->protection == PROTprivate && !d->parent->isTemplateMixin()) | |
| 693 error("%s is private", d->toPrettyChars()); | |
| 694 } | |
| 695 } | |
| 696 return s; | |
| 697 } | |
| 698 | |
| 699 void ScopeDsymbol::importScope(ScopeDsymbol *s, enum PROT protection) | |
| 700 { | |
| 701 //printf("%s->ScopeDsymbol::importScope(%s, %d)\n", toChars(), s->toChars(), protection); | |
| 702 | |
| 703 // No circular or redundant import's | |
| 704 if (s != this) | |
| 705 { | |
| 706 if (!imports) | |
| 707 imports = new Array(); | |
| 708 else | |
| 709 { | |
| 710 for (int i = 0; i < imports->dim; i++) | |
| 711 { ScopeDsymbol *ss; | |
| 712 | |
| 713 ss = (ScopeDsymbol *) imports->data[i]; | |
| 714 if (ss == s) | |
| 715 { | |
| 716 if (protection > prots[i]) | |
| 717 prots[i] = protection; // upgrade access | |
| 718 return; | |
| 719 } | |
| 720 } | |
| 721 } | |
| 722 imports->push(s); | |
| 723 prots = (unsigned char *)mem.realloc(prots, imports->dim * sizeof(prots[0])); | |
| 724 prots[imports->dim - 1] = protection; | |
| 725 } | |
| 726 } | |
| 727 | |
| 728 int ScopeDsymbol::isforwardRef() | |
| 729 { | |
| 730 return (members == NULL); | |
| 731 } | |
| 732 | |
| 733 void ScopeDsymbol::defineRef(Dsymbol *s) | |
| 734 { | |
| 735 ScopeDsymbol *ss; | |
| 736 | |
| 737 ss = s->isScopeDsymbol(); | |
| 738 members = ss->members; | |
| 739 ss->members = NULL; | |
| 740 } | |
| 741 | |
| 742 void ScopeDsymbol::multiplyDefined(Loc loc, Dsymbol *s1, Dsymbol *s2) | |
| 743 { | |
| 744 #if 0 | |
| 745 printf("ScopeDsymbol::multiplyDefined()\n"); | |
| 746 printf("s1 = %p, '%s' kind = '%s', parent = %s\n", s1, s1->toChars(), s1->kind(), s1->parent ? s1->parent->toChars() : ""); | |
| 747 printf("s2 = %p, '%s' kind = '%s', parent = %s\n", s2, s2->toChars(), s2->kind(), s2->parent ? s2->parent->toChars() : ""); | |
| 748 #endif | |
| 749 if (loc.filename) | |
| 750 { ::error(loc, "%s at %s conflicts with %s at %s", | |
| 751 s1->toPrettyChars(), | |
| 752 s1->locToChars(), | |
| 753 s2->toPrettyChars(), | |
| 754 s2->locToChars()); | |
| 755 } | |
| 756 else | |
| 757 { | |
| 758 s1->error(loc, "conflicts with %s %s at %s", | |
| 759 s2->kind(), | |
| 760 s2->toPrettyChars(), | |
| 761 s2->locToChars()); | |
| 762 } | |
| 763 } | |
| 764 | |
| 765 Dsymbol *ScopeDsymbol::nameCollision(Dsymbol *s) | |
| 766 { | |
| 767 Dsymbol *sprev; | |
| 768 | |
| 769 // Look to see if we are defining a forward referenced symbol | |
| 770 | |
| 771 sprev = symtab->lookup(s->ident); | |
| 772 assert(sprev); | |
| 773 if (s->equals(sprev)) // if the same symbol | |
| 774 { | |
| 775 if (s->isforwardRef()) // if second declaration is a forward reference | |
| 776 return sprev; | |
| 777 if (sprev->isforwardRef()) | |
| 778 { | |
| 779 sprev->defineRef(s); // copy data from s into sprev | |
| 780 return sprev; | |
| 781 } | |
| 782 } | |
| 783 multiplyDefined(0, s, sprev); | |
| 784 return sprev; | |
| 785 } | |
| 786 | |
| 787 char *ScopeDsymbol::kind() | |
| 788 { | |
| 789 return "ScopeDsymbol"; | |
| 790 } | |
| 791 | |
| 792 | |
| 19 | 793 /******************************************* |
| 794 * Look for member of the form: | |
| 795 * const(MemberInfo)[] getMembers(string); | |
| 796 * Returns NULL if not found | |
| 797 */ | |
| 798 | |
| 799 #if V2 | |
| 800 FuncDeclaration *ScopeDsymbol::findGetMembers() | |
| 801 { | |
| 802 Dsymbol *s = search_function(this, Id::getmembers); | |
| 803 FuncDeclaration *fdx = s ? s->isFuncDeclaration() : NULL; | |
| 804 | |
| 805 #if 0 // Finish | |
| 806 static TypeFunction *tfgetmembers; | |
| 807 | |
| 808 if (!tfgetmembers) | |
| 809 { | |
| 810 Scope sc; | |
| 811 Arguments *arguments = new Arguments; | |
| 812 Arguments *arg = new Argument(STCin, Type::tchar->constOf()->arrayOf(), NULL, NULL); | |
| 813 arguments->push(arg); | |
| 814 | |
| 815 Type *tret = NULL; | |
| 816 tfgetmembers = new TypeFunction(arguments, tret, 0, LINKd); | |
| 817 tfgetmembers = (TypeFunction *)tfgetmembers->semantic(0, &sc); | |
| 818 } | |
| 819 if (fdx) | |
| 820 fdx = fdx->overloadExactMatch(tfgetmembers); | |
| 821 #endif | |
| 822 if (fdx && fdx->isVirtual()) | |
| 823 fdx = NULL; | |
| 824 | |
| 825 return fdx; | |
| 826 } | |
| 827 #endif | |
| 828 | |
| 829 | |
| 1 | 830 /****************************** WithScopeSymbol ******************************/ |
| 831 | |
| 832 WithScopeSymbol::WithScopeSymbol(WithStatement *withstate) | |
| 833 : ScopeDsymbol() | |
| 834 { | |
| 835 this->withstate = withstate; | |
| 836 } | |
| 837 | |
| 838 Dsymbol *WithScopeSymbol::search(Loc loc, Identifier *ident, int flags) | |
| 839 { | |
| 840 // Acts as proxy to the with class declaration | |
| 841 return withstate->exp->type->toDsymbol(NULL)->search(loc, ident, 0); | |
| 842 } | |
| 843 | |
| 844 /****************************** ArrayScopeSymbol ******************************/ | |
| 845 | |
| 846 ArrayScopeSymbol::ArrayScopeSymbol(Expression *e) | |
| 847 : ScopeDsymbol() | |
| 848 { | |
| 849 assert(e->op == TOKindex || e->op == TOKslice); | |
| 850 exp = e; | |
| 851 type = NULL; | |
| 852 td = NULL; | |
| 853 } | |
| 854 | |
| 855 ArrayScopeSymbol::ArrayScopeSymbol(TypeTuple *t) | |
| 856 : ScopeDsymbol() | |
| 857 { | |
| 858 exp = NULL; | |
| 859 type = t; | |
| 860 td = NULL; | |
| 861 } | |
| 862 | |
| 863 ArrayScopeSymbol::ArrayScopeSymbol(TupleDeclaration *s) | |
| 864 : ScopeDsymbol() | |
| 865 { | |
| 866 exp = NULL; | |
| 867 type = NULL; | |
| 868 td = s; | |
| 869 } | |
| 870 | |
| 871 Dsymbol *ArrayScopeSymbol::search(Loc loc, Identifier *ident, int flags) | |
| 872 { | |
| 873 //printf("ArrayScopeSymbol::search('%s', flags = %d)\n", ident->toChars(), flags); | |
| 874 if (ident == Id::length || ident == Id::dollar) | |
| 875 { VarDeclaration **pvar; | |
| 876 Expression *ce; | |
| 877 | |
| 878 L1: | |
| 879 | |
| 880 if (td) | |
| 881 { | |
| 882 VarDeclaration *v = new VarDeclaration(loc, Type::tsize_t, Id::dollar, NULL); | |
| 883 Expression *e = new IntegerExp(0, td->objects->dim, Type::tsize_t); | |
| 884 v->init = new ExpInitializer(0, e); | |
| 885 v->storage_class |= STCconst; | |
| 886 return v; | |
| 887 } | |
| 888 | |
| 889 if (type) | |
| 890 { | |
| 891 VarDeclaration *v = new VarDeclaration(loc, Type::tsize_t, Id::dollar, NULL); | |
| 892 Expression *e = new IntegerExp(0, type->arguments->dim, Type::tsize_t); | |
| 893 v->init = new ExpInitializer(0, e); | |
| 894 v->storage_class |= STCconst; | |
| 895 return v; | |
| 896 } | |
| 897 | |
| 898 if (exp->op == TOKindex) | |
| 899 { | |
| 900 IndexExp *ie = (IndexExp *)exp; | |
| 901 | |
| 902 pvar = &ie->lengthVar; | |
| 903 ce = ie->e1; | |
| 904 } | |
| 905 else if (exp->op == TOKslice) | |
| 906 { | |
| 907 SliceExp *se = (SliceExp *)exp; | |
| 908 | |
| 909 pvar = &se->lengthVar; | |
| 910 ce = se->e1; | |
| 911 } | |
| 912 else | |
| 913 return NULL; | |
| 914 | |
| 915 if (ce->op == TOKtype) | |
| 916 { | |
| 917 Type *t = ((TypeExp *)ce)->type; | |
| 918 if (t->ty == Ttuple) | |
| 919 { type = (TypeTuple *)t; | |
| 920 goto L1; | |
| 921 } | |
| 922 } | |
| 923 | |
| 924 if (!*pvar) | |
| 925 { | |
| 926 VarDeclaration *v = new VarDeclaration(loc, Type::tsize_t, Id::dollar, NULL); | |
| 927 | |
| 928 if (ce->op == TOKstring) | |
| 929 { /* It is for a string literal, so the | |
| 930 * length will be a const. | |
| 931 */ | |
| 932 Expression *e = new IntegerExp(0, ((StringExp *)ce)->len, Type::tsize_t); | |
| 933 v->init = new ExpInitializer(0, e); | |
| 934 v->storage_class |= STCconst; | |
| 935 } | |
| 936 else if (ce->op == TOKarrayliteral) | |
| 937 { /* It is for an array literal, so the | |
| 938 * length will be a const. | |
| 939 */ | |
| 940 Expression *e = new IntegerExp(0, ((ArrayLiteralExp *)ce)->elements->dim, Type::tsize_t); | |
| 941 v->init = new ExpInitializer(0, e); | |
| 942 v->storage_class |= STCconst; | |
| 943 } | |
| 944 else if (ce->op == TOKtuple) | |
| 945 { /* It is for an expression tuple, so the | |
| 946 * length will be a const. | |
| 947 */ | |
| 948 Expression *e = new IntegerExp(0, ((TupleExp *)ce)->exps->dim, Type::tsize_t); | |
| 949 v->init = new ExpInitializer(0, e); | |
| 950 v->storage_class |= STCconst; | |
| 951 } | |
| 952 *pvar = v; | |
| 953 } | |
| 954 return (*pvar); | |
| 955 } | |
| 956 return NULL; | |
| 957 } | |
| 958 | |
| 959 | |
| 960 /****************************** DsymbolTable ******************************/ | |
| 961 | |
| 962 DsymbolTable::DsymbolTable() | |
| 963 { | |
| 964 tab = new StringTable; | |
| 965 } | |
| 966 | |
| 967 DsymbolTable::~DsymbolTable() | |
| 968 { | |
| 969 delete tab; | |
| 970 } | |
| 971 | |
| 972 Dsymbol *DsymbolTable::lookup(Identifier *ident) | |
| 973 { StringValue *sv; | |
| 974 | |
| 975 #ifdef DEBUG | |
| 976 assert(ident); | |
| 977 assert(tab); | |
| 978 #endif | |
| 979 sv = tab->lookup((char*)ident->string, ident->len); | |
| 980 return (Dsymbol *)(sv ? sv->ptrvalue : NULL); | |
| 981 } | |
| 982 | |
| 983 Dsymbol *DsymbolTable::insert(Dsymbol *s) | |
| 984 { StringValue *sv; | |
| 985 Identifier *ident; | |
| 986 | |
| 987 //printf("DsymbolTable::insert(this = %p, '%s')\n", this, s->ident->toChars()); | |
| 988 ident = s->ident; | |
| 989 #ifdef DEBUG | |
| 990 assert(ident); | |
| 991 assert(tab); | |
| 992 #endif | |
| 993 sv = tab->insert(ident->toChars(), ident->len); | |
| 994 if (!sv) | |
| 995 return NULL; // already in table | |
| 996 sv->ptrvalue = s; | |
| 997 return s; | |
| 998 } | |
| 999 | |
| 1000 Dsymbol *DsymbolTable::insert(Identifier *ident, Dsymbol *s) | |
| 1001 { StringValue *sv; | |
| 1002 | |
| 1003 //printf("DsymbolTable::insert()\n"); | |
| 1004 sv = tab->insert(ident->toChars(), ident->len); | |
| 1005 if (!sv) | |
| 1006 return NULL; // already in table | |
| 1007 sv->ptrvalue = s; | |
| 1008 return s; | |
| 1009 } | |
| 1010 | |
| 1011 Dsymbol *DsymbolTable::update(Dsymbol *s) | |
| 1012 { StringValue *sv; | |
| 1013 Identifier *ident; | |
| 1014 | |
| 1015 ident = s->ident; | |
| 1016 sv = tab->update(ident->toChars(), ident->len); | |
| 1017 sv->ptrvalue = s; | |
| 1018 return s; | |
| 1019 } | |
| 1020 | |
| 1021 | |
| 1022 | |
| 1023 |