Mercurial > projects > ddmd
annotate dmd/InterfaceDeclaration.d @ 114:e28b18c23469
added a module dmd.common for commonly used stuff
it currently holds code for consistency checking of predefined versions
also added a VisualD project file
| author | Trass3r |
|---|---|
| date | Wed, 01 Sep 2010 18:21:58 +0200 |
| parents | 37b95c347975 |
| children | 9e39c7de8438 |
| rev | line source |
|---|---|
| 0 | 1 module dmd.InterfaceDeclaration; |
| 2 | |
| 114 | 3 import dmd.common; |
| 0 | 4 import dmd.ClassDeclaration; |
| 5 import dmd.Loc; | |
| 6 import dmd.DsymbolTable; | |
| 7 import dmd.STC; | |
| 8 import dmd.Type; | |
| 9 import dmd.TY; | |
| 10 import dmd.LINK; | |
| 11 import dmd.Argument; | |
| 12 import dmd.Util; | |
| 13 import dmd.TypeTuple; | |
| 14 import dmd.PROT; | |
| 15 import dmd.TypeClass; | |
| 16 import dmd.Identifier; | |
| 17 import dmd.ArrayTypes; | |
| 18 import dmd.Dsymbol; | |
| 19 import dmd.Scope; | |
| 20 import dmd.Global; | |
|
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21 import dmd.Module; |
| 0 | 22 import dmd.BaseClass; |
| 23 import dmd.Id; | |
| 24 | |
| 25 import dmd.backend.Symbol; | |
| 26 import dmd.backend.TYM; | |
| 27 import dmd.backend.dt_t; | |
| 28 import dmd.backend.Util; | |
| 29 import dmd.codegen.Util; | |
| 30 import dmd.backend.SC; | |
| 31 import dmd.backend.FL; | |
| 32 import dmd.backend.LIST; | |
| 33 import dmd.backend.SFL; | |
| 34 | |
| 35 class InterfaceDeclaration : ClassDeclaration | |
| 36 { | |
| 37 version (DMDV2) { | |
| 38 bool cpp; // true if this is a C++ interface | |
| 39 } | |
| 40 this(Loc loc, Identifier id, BaseClasses baseclasses) | |
| 41 { | |
| 42 super(loc, id, baseclasses); | |
| 43 | |
| 44 if (id is Id.IUnknown) // IUnknown is the root of all COM interfaces | |
| 45 { | |
| 46 com = true; | |
| 47 cpp = true; // IUnknown is also a C++ interface | |
| 48 } | |
| 49 } | |
| 50 | |
| 72 | 51 override Dsymbol syntaxCopy(Dsymbol s) |
| 0 | 52 { |
| 53 assert(false); | |
| 54 } | |
| 55 | |
| 72 | 56 override void semantic(Scope sc) |
| 0 | 57 { |
| 58 //printf("InterfaceDeclaration.semantic(%s), type = %p\n", toChars(), type); | |
| 59 if (inuse) | |
| 60 return; | |
| 61 | |
| 62 if (!sc) | |
| 63 sc = scope_; | |
| 64 if (!parent && sc.parent && !sc.parent.isModule()) | |
| 65 parent = sc.parent; | |
| 66 | |
| 67 type = type.semantic(loc, sc); | |
| 68 handle = type; | |
| 69 | |
| 70 if (!members) // if forward reference | |
| 71 { | |
| 72 //printf("\tinterface '%s' is forward referenced\n", toChars()); | |
| 73 return; | |
| 74 } | |
| 75 if (symtab) // if already done | |
| 76 { | |
| 77 if (!scope_) | |
| 78 return; | |
| 79 } | |
| 80 else | |
| 81 symtab = new DsymbolTable(); | |
| 82 | |
| 83 Scope scx = null; | |
| 84 if (scope_) | |
| 85 { | |
| 86 sc = scope_; | |
| 87 scx = scope_; // save so we don't make redundant copies | |
| 88 scope_ = null; | |
| 89 } | |
| 90 | |
| 91 if (sc.stc & STC.STCdeprecated) | |
| 92 { | |
| 93 isdeprecated = true; | |
| 94 } | |
| 95 | |
| 96 // Expand any tuples in baseclasses[] | |
| 89 | 97 for (size_t i = 0; i < baseclasses.dim; ) |
| 0 | 98 { |
| 99 BaseClass b = cast(BaseClass)baseclasses.data[0]; | |
| 100 b.type = b.type.semantic(loc, sc); | |
| 101 Type tb = b.type.toBasetype(); | |
| 102 | |
| 103 if (tb.ty == TY.Ttuple) | |
| 104 { TypeTuple tup = cast(TypeTuple)tb; | |
| 105 PROT protection = b.protection; | |
| 106 baseclasses.remove(i); | |
| 107 size_t dim = Argument.dim(tup.arguments); | |
| 108 for (size_t j = 0; j < dim; j++) | |
| 109 { Argument arg = Argument.getNth(tup.arguments, j); | |
| 110 b = new BaseClass(arg.type, protection); | |
| 111 baseclasses.insert(i + j, cast(void*)b); | |
| 112 } | |
| 113 } | |
| 114 else | |
| 115 i++; | |
| 116 } | |
| 117 | |
| 118 if (!baseclasses.dim && sc.linkage == LINK.LINKcpp) | |
| 119 cpp = 1; | |
| 120 | |
| 121 // Check for errors, handle forward references | |
| 89 | 122 for (size_t i = 0; i < baseclasses.dim; ) |
| 0 | 123 { |
| 124 TypeClass tc; | |
| 125 BaseClass b; | |
| 126 Type tb; | |
| 127 | |
| 128 b = cast(BaseClass)baseclasses.data[i]; | |
| 129 b.type = b.type.semantic(loc, sc); | |
| 130 tb = b.type.toBasetype(); | |
| 131 if (tb.ty == TY.Tclass) | |
| 132 tc = cast(TypeClass)tb; | |
| 133 else | |
| 134 tc = null; | |
| 135 if (!tc || !tc.sym.isInterfaceDeclaration()) | |
| 136 { | |
| 137 error("base type must be interface, not %s", b.type.toChars()); | |
| 138 baseclasses.remove(i); | |
| 139 continue; | |
| 140 } | |
| 141 else | |
| 142 { | |
| 143 // Check for duplicate interfaces | |
| 144 for (size_t j = 0; j < i; j++) | |
| 145 { | |
| 146 BaseClass b2 = cast(BaseClass)baseclasses.data[j]; | |
| 147 if (b2.base is tc.sym) | |
| 148 error("inherits from duplicate interface %s", b2.base.toChars()); | |
| 149 } | |
| 150 | |
| 151 b.base = tc.sym; | |
| 152 if (b.base == this || isBaseOf2(b.base)) | |
| 153 { | |
| 154 error("circular inheritance of interface"); | |
| 155 baseclasses.remove(i); | |
| 156 continue; | |
| 157 } | |
| 158 if (!b.base.symtab) | |
| 159 { | |
| 160 // Try to resolve forward reference | |
| 161 if (sc.mustsemantic && b.base.scope_) | |
| 162 b.base.semantic(null); | |
| 163 } | |
| 164 if (!b.base.symtab || b.base.scope_ || b.base.inuse) | |
| 165 { | |
| 166 //error("forward reference of base class %s", baseClass.toChars()); | |
| 167 // Forward reference of base, try again later | |
| 168 //printf("\ttry later, forward reference of base %s\n", b.base.toChars()); | |
|
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Fixed a bug with a Scope.this(Scope enclosing) being called instead of Scope.clone() method (as a copy ctor replacement)
korDen
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169 scope_ = scx ? scx : sc.clone(); |
| 0 | 170 scope_.setNoFree(); |
| 171 scope_.module_.addDeferredSemantic(this); | |
| 172 return; | |
| 173 } | |
| 174 } | |
| 175 static if (false) { | |
| 176 // Inherit const/invariant from base class | |
| 177 storage_class |= b.base.storage_class & STC.STC_TYPECTOR; | |
| 178 } | |
| 179 i++; | |
| 180 } | |
| 181 | |
| 182 interfaces_dim = baseclasses.dim; | |
| 183 interfaces = cast(BaseClass*)baseclasses.data; | |
| 184 | |
| 185 interfaceSemantic(sc); | |
| 186 | |
| 187 if (vtblOffset()) | |
| 188 vtbl.push(cast(void*)this); // leave room at vtbl[0] for classinfo | |
| 189 | |
| 190 // Cat together the vtbl[]'s from base interfaces | |
| 89 | 191 for (size_t i = 0; i < interfaces_dim; i++) |
| 0 | 192 { |
| 193 BaseClass b = interfaces[i]; | |
| 194 | |
| 195 // Skip if b has already appeared | |
| 196 for (int k = 0; k < i; k++) | |
| 197 { | |
| 198 if (b == interfaces[i]) | |
| 199 goto Lcontinue; | |
| 200 } | |
| 201 | |
| 202 // Copy vtbl[] from base class | |
| 203 if (b.base.vtblOffset()) | |
| 204 { int d = b.base.vtbl.dim; | |
| 205 if (d > 1) | |
| 206 { | |
| 207 vtbl.reserve(d - 1); | |
| 208 for (int j = 1; j < d; j++) | |
| 209 vtbl.push(b.base.vtbl.data[j]); | |
| 210 } | |
| 211 } | |
| 212 else | |
| 213 { | |
| 214 vtbl.append(b.base.vtbl); | |
| 215 } | |
| 216 | |
| 217 Lcontinue: | |
| 218 ; | |
| 219 } | |
| 220 | |
| 221 protection = sc.protection; | |
| 222 storage_class |= sc.stc & STC.STC_TYPECTOR; | |
| 223 | |
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224 foreach(Dsymbol s; members) |
| 13 | 225 s.addMember(sc, this, true); |
| 0 | 226 |
| 227 sc = sc.push(this); | |
| 228 sc.stc &= ~(STC.STCfinal | STC.STCauto | STC.STCscope | STC.STCstatic | | |
| 229 STC.STCabstract | STC.STCdeprecated | STC.STC_TYPECTOR | STC.STCtls | STC.STCgshared); | |
| 230 sc.stc |= storage_class & STC.STC_TYPECTOR; | |
| 231 sc.parent = this; | |
| 232 if (isCOMinterface()) | |
| 233 sc.linkage = LINK.LINKwindows; | |
| 234 else if (isCPPinterface()) | |
| 235 sc.linkage = LINK.LINKcpp; | |
| 236 sc.structalign = 8; | |
| 237 structalign = sc.structalign; | |
| 238 sc.offset = PTRSIZE * 2; | |
| 239 inuse++; | |
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parents:
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changeset
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240 foreach(Dsymbol s; members) |
| 0 | 241 s.semantic(sc); |
| 242 inuse--; | |
| 243 //members.print(); | |
| 244 sc.pop(); | |
| 245 //printf("-InterfaceDeclaration.semantic(%s), type = %p\n", toChars(), type); | |
| 246 } | |
| 247 | |
| 72 | 248 override bool isBaseOf(ClassDeclaration cd, int* poffset) |
| 0 | 249 { |
| 250 uint j; | |
| 251 | |
| 252 //printf("%s.InterfaceDeclaration.isBaseOf(cd = '%s')\n", toChars(), cd.toChars()); | |
| 253 assert(!baseClass); | |
| 254 for (j = 0; j < cd.interfaces_dim; j++) | |
| 255 { | |
| 256 BaseClass b = cd.interfaces[j]; | |
| 257 | |
| 258 //printf("\tbase %s\n", b.base.toChars()); | |
| 259 if (this == b.base) | |
| 260 { | |
| 261 //printf("\tfound at offset %d\n", b.offset); | |
| 262 if (poffset) | |
| 263 { | |
| 264 *poffset = b.offset; | |
| 265 if (j && cd.isInterfaceDeclaration()) | |
| 266 *poffset = OFFSET_RUNTIME; | |
| 267 } | |
| 268 return true; | |
| 269 } | |
| 270 if (isBaseOf(b, poffset)) | |
| 271 { | |
| 272 if (j && poffset && cd.isInterfaceDeclaration()) | |
| 273 *poffset = OFFSET_RUNTIME; | |
| 274 return true; | |
| 275 } | |
| 276 } | |
| 277 | |
| 278 if (cd.baseClass && isBaseOf(cd.baseClass, poffset)) | |
| 279 return true; | |
| 280 | |
| 281 if (poffset) | |
| 282 *poffset = 0; | |
| 283 return false; | |
| 284 } | |
| 285 | |
| 286 bool isBaseOf(BaseClass bc, int* poffset) | |
| 287 { | |
| 64 | 288 //printf("%s.InterfaceDeclaration.isBaseOf(bc = '%s')\n", toChars(), bc.base.toChars()); |
| 289 for (uint j = 0; j < bc.baseInterfaces.length; j++) | |
| 290 { | |
| 291 BaseClass b = bc.baseInterfaces[j]; | |
| 292 | |
| 293 if (this == b.base) | |
| 294 { | |
| 295 if (poffset) | |
| 296 { | |
| 297 *poffset = b.offset; | |
| 298 if (j && bc.base.isInterfaceDeclaration()) | |
| 299 *poffset = OFFSET_RUNTIME; | |
| 300 } | |
| 301 return 1; | |
| 302 } | |
| 303 if (isBaseOf(b, poffset)) | |
| 304 { | |
| 305 if (j && poffset && bc.base.isInterfaceDeclaration()) | |
| 306 *poffset = OFFSET_RUNTIME; | |
| 307 return 1; | |
| 308 } | |
| 309 } | |
| 310 if (poffset) | |
| 311 *poffset = 0; | |
| 312 return 0; | |
| 0 | 313 } |
| 314 | |
| 72 | 315 override string kind() |
| 0 | 316 { |
| 317 assert(false); | |
| 318 } | |
| 319 | |
| 320 /**************************************** | |
| 321 * Determine if slot 0 of the vtbl[] is reserved for something else. | |
| 322 * For class objects, yes, this is where the ClassInfo ptr goes. | |
| 323 * For COM interfaces, no. | |
| 324 * For non-COM interfaces, yes, this is where the Interface ptr goes. | |
| 325 */ | |
| 72 | 326 override int vtblOffset() |
| 0 | 327 { |
| 328 if (isCOMinterface() || isCPPinterface()) | |
| 329 return 0; | |
| 330 return 1; | |
| 331 } | |
| 332 | |
| 333 version (DMDV2) { | |
| 72 | 334 override bool isCPPinterface() |
| 0 | 335 { |
| 336 return cpp; | |
| 337 } | |
| 338 } | |
| 72 | 339 override bool isCOMinterface() |
| 0 | 340 { |
| 341 return com; | |
| 342 } | |
| 343 | |
| 72 | 344 override void toObjFile(int multiobj) // compile to .obj file |
| 0 | 345 { |
| 346 uint offset; | |
| 347 Symbol* sinit; | |
| 348 SC scclass; | |
| 349 | |
| 350 //printf("InterfaceDeclaration.toObjFile('%s')\n", toChars()); | |
| 351 | |
| 352 if (!members) | |
| 353 return; | |
| 354 | |
| 355 if (global.params.symdebug) | |
| 356 toDebug(); | |
| 357 | |
| 358 scclass = SCglobal; | |
| 359 if (inTemplateInstance()) | |
| 360 scclass = SCcomdat; | |
| 361 | |
| 362 // Put out the members | |
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363 foreach(Dsymbol member; members) |
| 0 | 364 { |
| 365 if (!member.isFuncDeclaration()) | |
| 366 member.toObjFile(0); | |
| 367 } | |
| 368 | |
| 369 // Generate C symbols | |
| 370 toSymbol(); | |
| 371 | |
| 372 ////////////////////////////////////////////// | |
| 373 | |
| 374 // Put out the TypeInfo | |
| 375 type.getTypeInfo(null); | |
| 376 type.vtinfo.toObjFile(multiobj); | |
| 377 | |
| 378 ////////////////////////////////////////////// | |
| 379 | |
| 380 // Put out the ClassInfo | |
| 381 csym.Sclass = scclass; | |
| 382 csym.Sfl = FLdata; | |
| 383 | |
| 384 /* The layout is: | |
| 385 { | |
| 386 void **vptr; | |
| 387 monitor_t monitor; | |
| 388 byte[] initializer; // static initialization data | |
| 389 char[] name; // class name | |
| 390 void *[] vtbl; | |
| 391 Interface[] interfaces; | |
| 392 Object *base; // base class | |
| 393 void *destructor; | |
| 394 void *invariant; // class invariant | |
| 395 uint flags; | |
| 396 void *deallocator; | |
| 397 OffsetTypeInfo[] offTi; | |
| 398 void *defaultConstructor; | |
| 399 #if DMDV2 | |
| 400 const(MemberInfo[]) function(string) xgetMembers; // module getMembers() function | |
| 401 #endif | |
| 402 TypeInfo typeinfo; | |
| 403 } | |
| 404 */ | |
| 405 dt_t *dt = null; | |
| 406 | |
| 407 if (classinfo) | |
| 408 dtxoff(&dt, classinfo.toVtblSymbol(), 0, TYnptr); // vtbl for ClassInfo | |
| 409 else | |
| 410 dtdword(&dt, 0); // BUG: should be an assert() | |
| 411 dtdword(&dt, 0); // monitor | |
| 412 | |
| 413 // initializer[] | |
| 414 dtdword(&dt, 0); // size | |
| 415 dtdword(&dt, 0); // initializer | |
| 416 | |
| 417 // name[] | |
| 418 string name = toPrettyChars(); | |
| 419 size_t namelen = name.length; | |
| 420 dtdword(&dt, namelen); | |
| 421 dtabytes(&dt, TYnptr, 0, namelen + 1, toStringz(name)); | |
| 422 | |
| 423 // vtbl[] | |
| 424 dtdword(&dt, 0); | |
| 425 dtdword(&dt, 0); | |
| 426 | |
| 427 // vtblInterfaces.data[] | |
| 428 dtdword(&dt, vtblInterfaces.dim); | |
| 429 if (vtblInterfaces.dim) | |
| 430 { | |
| 431 if (classinfo) | |
| 432 assert(classinfo.structsize == CLASSINFO_SIZE); | |
| 433 offset = CLASSINFO_SIZE; | |
| 434 dtxoff(&dt, csym, offset, TYnptr); // (*) | |
| 435 } | |
| 436 else | |
| 437 dtdword(&dt, 0); | |
| 438 | |
| 439 // base | |
| 440 assert(!baseClass); | |
| 441 dtdword(&dt, 0); | |
| 442 | |
| 443 // dtor | |
| 444 dtdword(&dt, 0); | |
| 445 | |
| 446 // invariant | |
| 447 dtdword(&dt, 0); | |
| 448 | |
| 449 // flags | |
| 450 dtdword(&dt, 4 | isCOMinterface() | 32); | |
| 451 | |
| 452 // deallocator | |
| 453 dtdword(&dt, 0); | |
| 454 | |
| 455 // offTi[] | |
| 456 dtdword(&dt, 0); | |
| 457 dtdword(&dt, 0); // null for now, fix later | |
| 458 | |
| 459 // defaultConstructor | |
| 460 dtdword(&dt, 0); | |
| 461 | |
| 462 version (DMDV2) { | |
| 463 // xgetMembers | |
| 464 dtdword(&dt, 0); | |
| 465 } | |
| 466 | |
| 467 dtxoff(&dt, type.vtinfo.toSymbol(), 0, TYnptr); // typeinfo | |
| 468 | |
| 469 ////////////////////////////////////////////// | |
| 470 | |
| 471 // Put out vtblInterfaces.data[]. Must immediately follow csym, because | |
| 472 // of the fixup (*) | |
| 473 | |
| 474 offset += vtblInterfaces.dim * (4 * PTRSIZE); | |
| 89 | 475 for (size_t i = 0; i < vtblInterfaces.dim; i++) |
| 0 | 476 { |
| 477 BaseClass b = cast(BaseClass)vtblInterfaces.data[i]; | |
| 478 ClassDeclaration id = b.base; | |
| 479 | |
| 480 // ClassInfo | |
| 481 dtxoff(&dt, id.toSymbol(), 0, TYnptr); | |
| 482 | |
| 483 // vtbl[] | |
| 484 dtdword(&dt, 0); | |
| 485 dtdword(&dt, 0); | |
| 486 | |
| 487 // this offset | |
| 488 dtdword(&dt, b.offset); | |
| 489 } | |
| 490 | |
| 491 csym.Sdt = dt; | |
| 492 version (ELFOBJ) { | |
|
22
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
493 csym.Sseg = Segment.CDATA; |
| 0 | 494 } |
| 495 version (MACHOBJ) { | |
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Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
496 csym.Sseg = Segment.DATA; |
| 0 | 497 } |
| 498 outdata(csym); | |
| 499 if (isExport()) | |
| 500 obj_export(csym,0); | |
| 501 } | |
| 502 | |
| 503 /************************************* | |
| 504 * Create the "InterfaceInfo" symbol | |
| 505 */ | |
| 72 | 506 override Symbol* toSymbol() |
| 0 | 507 { |
| 508 if (!csym) | |
| 509 { | |
| 510 Symbol *s; | |
| 511 | |
| 512 if (!scc) | |
| 513 scc = fake_classsym(Id.ClassInfo); | |
| 514 | |
| 515 s = toSymbolX("__Interface", SCextern, scc.Stype, "Z"); | |
| 516 s.Sfl = FLextern; | |
| 517 s.Sflags |= SFLnodebug; | |
| 518 csym = s; | |
| 519 slist_add(s); | |
| 520 } | |
| 521 return csym; | |
| 522 } | |
| 523 | |
| 72 | 524 override InterfaceDeclaration isInterfaceDeclaration() { return this; } |
|
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fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
525 } |