1 //===--- Mangle.cpp - Mangle C++ Names --------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // Implements generic name mangling support for blocks and Objective-C. 10 // 11 //===----------------------------------------------------------------------===// 12 #include "clang/AST/Attr.h" 13 #include "clang/AST/ASTContext.h" 14 #include "clang/AST/Decl.h" 15 #include "clang/AST/DeclCXX.h" 16 #include "clang/AST/DeclObjC.h" 17 #include "clang/AST/DeclTemplate.h" 18 #include "clang/AST/ExprCXX.h" 19 #include "clang/AST/Mangle.h" 20 #include "clang/AST/VTableBuilder.h" 21 #include "clang/Basic/ABI.h" 22 #include "clang/Basic/SourceManager.h" 23 #include "clang/Basic/TargetInfo.h" 24 #include "llvm/ADT/StringExtras.h" 25 #include "llvm/IR/DataLayout.h" 26 #include "llvm/IR/Mangler.h" 27 #include "llvm/Support/ErrorHandling.h" 28 #include "llvm/Support/Format.h" 29 #include "llvm/Support/raw_ostream.h" 30 31 using namespace clang; 32 33 // FIXME: For blocks we currently mimic GCC's mangling scheme, which leaves 34 // much to be desired. Come up with a better mangling scheme. 35 36 static void mangleFunctionBlock(MangleContext &Context, 37 StringRef Outer, 38 const BlockDecl *BD, 39 raw_ostream &Out) { 40 unsigned discriminator = Context.getBlockId(BD, true); 41 if (discriminator == 0) 42 Out << "__" << Outer << "_block_invoke"; 43 else 44 Out << "__" << Outer << "_block_invoke_" << discriminator+1; 45 } 46 47 void MangleContext::anchor() { } 48 49 enum CCMangling { 50 CCM_Other, 51 CCM_Fast, 52 CCM_RegCall, 53 CCM_Vector, 54 CCM_Std, 55 CCM_WasmMainArgcArgv 56 }; 57 58 static bool isExternC(const NamedDecl *ND) { 59 if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) 60 return FD->isExternC(); 61 if (const VarDecl *VD = dyn_cast<VarDecl>(ND)) 62 return VD->isExternC(); 63 return false; 64 } 65 66 static CCMangling getCallingConvMangling(const ASTContext &Context, 67 const NamedDecl *ND) { 68 const TargetInfo &TI = Context.getTargetInfo(); 69 const llvm::Triple &Triple = TI.getTriple(); 70 71 // On wasm, the argc/argv form of "main" is renamed so that the startup code 72 // can call it with the correct function signature. 73 if (Triple.isWasm()) 74 if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) 75 if (FD->isMain() && FD->getNumParams() == 2) 76 return CCM_WasmMainArgcArgv; 77 78 if (!Triple.isOSWindows() || !Triple.isX86()) 79 return CCM_Other; 80 81 if (Context.getLangOpts().CPlusPlus && !isExternC(ND) && 82 TI.getCXXABI() == TargetCXXABI::Microsoft) 83 return CCM_Other; 84 85 const FunctionDecl *FD = dyn_cast<FunctionDecl>(ND); 86 if (!FD) 87 return CCM_Other; 88 QualType T = FD->getType(); 89 90 const FunctionType *FT = T->castAs<FunctionType>(); 91 92 CallingConv CC = FT->getCallConv(); 93 switch (CC) { 94 default: 95 return CCM_Other; 96 case CC_X86FastCall: 97 return CCM_Fast; 98 case CC_X86StdCall: 99 return CCM_Std; 100 case CC_X86VectorCall: 101 return CCM_Vector; 102 } 103 } 104 105 bool MangleContext::shouldMangleDeclName(const NamedDecl *D) { 106 const ASTContext &ASTContext = getASTContext(); 107 108 CCMangling CC = getCallingConvMangling(ASTContext, D); 109 if (CC != CCM_Other) 110 return true; 111 112 // If the declaration has an owning module for linkage purposes that needs to 113 // be mangled, we must mangle its name. 114 if (!D->hasExternalFormalLinkage() && D->getOwningModuleForLinkage()) 115 return true; 116 117 // C functions with internal linkage have to be mangled with option 118 // -funique-internal-linkage-names. 119 if (!getASTContext().getLangOpts().CPlusPlus && 120 isUniqueInternalLinkageDecl(D)) 121 return true; 122 123 // In C, functions with no attributes never need to be mangled. Fastpath them. 124 if (!getASTContext().getLangOpts().CPlusPlus && !D->hasAttrs()) 125 return false; 126 127 // Any decl can be declared with __asm("foo") on it, and this takes precedence 128 // over all other naming in the .o file. 129 if (D->hasAttr<AsmLabelAttr>()) 130 return true; 131 132 // Declarations that don't have identifier names always need to be mangled. 133 if (isa<MSGuidDecl>(D)) 134 return true; 135 136 return shouldMangleCXXName(D); 137 } 138 139 void MangleContext::mangleName(GlobalDecl GD, raw_ostream &Out) { 140 const ASTContext &ASTContext = getASTContext(); 141 const NamedDecl *D = cast<NamedDecl>(GD.getDecl()); 142 143 // Any decl can be declared with __asm("foo") on it, and this takes precedence 144 // over all other naming in the .o file. 145 if (const AsmLabelAttr *ALA = D->getAttr<AsmLabelAttr>()) { 146 // If we have an asm name, then we use it as the mangling. 147 148 // If the label isn't literal, or if this is an alias for an LLVM intrinsic, 149 // do not add a "\01" prefix. 150 if (!ALA->getIsLiteralLabel() || ALA->getLabel().startswith("llvm.")) { 151 Out << ALA->getLabel(); 152 return; 153 } 154 155 // Adding the prefix can cause problems when one file has a "foo" and 156 // another has a "\01foo". That is known to happen on ELF with the 157 // tricks normally used for producing aliases (PR9177). Fortunately the 158 // llvm mangler on ELF is a nop, so we can just avoid adding the \01 159 // marker. 160 StringRef UserLabelPrefix = 161 getASTContext().getTargetInfo().getUserLabelPrefix(); 162 #ifndef NDEBUG 163 char GlobalPrefix = 164 llvm::DataLayout(getASTContext().getTargetInfo().getDataLayoutString()) 165 .getGlobalPrefix(); 166 assert((UserLabelPrefix.empty() && !GlobalPrefix) || 167 (UserLabelPrefix.size() == 1 && UserLabelPrefix[0] == GlobalPrefix)); 168 #endif 169 if (!UserLabelPrefix.empty()) 170 Out << '\01'; // LLVM IR Marker for __asm("foo") 171 172 Out << ALA->getLabel(); 173 return; 174 } 175 176 if (auto *GD = dyn_cast<MSGuidDecl>(D)) 177 return mangleMSGuidDecl(GD, Out); 178 179 CCMangling CC = getCallingConvMangling(ASTContext, D); 180 181 if (CC == CCM_WasmMainArgcArgv) { 182 Out << "__main_argc_argv"; 183 return; 184 } 185 186 bool MCXX = shouldMangleCXXName(D); 187 const TargetInfo &TI = Context.getTargetInfo(); 188 if (CC == CCM_Other || (MCXX && TI.getCXXABI() == TargetCXXABI::Microsoft)) { 189 if (const ObjCMethodDecl *OMD = dyn_cast<ObjCMethodDecl>(D)) 190 mangleObjCMethodNameAsSourceName(OMD, Out); 191 else 192 mangleCXXName(GD, Out); 193 return; 194 } 195 196 Out << '\01'; 197 if (CC == CCM_Std) 198 Out << '_'; 199 else if (CC == CCM_Fast) 200 Out << '@'; 201 else if (CC == CCM_RegCall) 202 Out << "__regcall3__"; 203 204 if (!MCXX) 205 Out << D->getIdentifier()->getName(); 206 else if (const ObjCMethodDecl *OMD = dyn_cast<ObjCMethodDecl>(D)) 207 mangleObjCMethodNameAsSourceName(OMD, Out); 208 else 209 mangleCXXName(GD, Out); 210 211 const FunctionDecl *FD = cast<FunctionDecl>(D); 212 const FunctionType *FT = FD->getType()->castAs<FunctionType>(); 213 const FunctionProtoType *Proto = dyn_cast<FunctionProtoType>(FT); 214 if (CC == CCM_Vector) 215 Out << '@'; 216 Out << '@'; 217 if (!Proto) { 218 Out << '0'; 219 return; 220 } 221 assert(!Proto->isVariadic()); 222 unsigned ArgWords = 0; 223 if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) 224 if (!MD->isStatic()) 225 ++ArgWords; 226 uint64_t DefaultPtrWidth = TI.getPointerWidth(LangAS::Default); 227 for (const auto &AT : Proto->param_types()) { 228 // If an argument type is incomplete there is no way to get its size to 229 // correctly encode into the mangling scheme. 230 // Follow GCCs behaviour by simply breaking out of the loop. 231 if (AT->isIncompleteType()) 232 break; 233 // Size should be aligned to pointer size. 234 ArgWords += llvm::alignTo(ASTContext.getTypeSize(AT), DefaultPtrWidth) / 235 DefaultPtrWidth; 236 } 237 Out << ((DefaultPtrWidth / 8) * ArgWords); 238 } 239 240 void MangleContext::mangleMSGuidDecl(const MSGuidDecl *GD, raw_ostream &Out) { 241 // For now, follow the MSVC naming convention for GUID objects on all 242 // targets. 243 MSGuidDecl::Parts P = GD->getParts(); 244 Out << llvm::format("_GUID_%08" PRIx32 "_%04" PRIx32 "_%04" PRIx32 "_", 245 P.Part1, P.Part2, P.Part3); 246 unsigned I = 0; 247 for (uint8_t C : P.Part4And5) { 248 Out << llvm::format("%02" PRIx8, C); 249 if (++I == 2) 250 Out << "_"; 251 } 252 } 253 254 void MangleContext::mangleGlobalBlock(const BlockDecl *BD, 255 const NamedDecl *ID, 256 raw_ostream &Out) { 257 unsigned discriminator = getBlockId(BD, false); 258 if (ID) { 259 if (shouldMangleDeclName(ID)) 260 mangleName(ID, Out); 261 else { 262 Out << ID->getIdentifier()->getName(); 263 } 264 } 265 if (discriminator == 0) 266 Out << "_block_invoke"; 267 else 268 Out << "_block_invoke_" << discriminator+1; 269 } 270 271 void MangleContext::mangleCtorBlock(const CXXConstructorDecl *CD, 272 CXXCtorType CT, const BlockDecl *BD, 273 raw_ostream &ResStream) { 274 SmallString<64> Buffer; 275 llvm::raw_svector_ostream Out(Buffer); 276 mangleName(GlobalDecl(CD, CT), Out); 277 mangleFunctionBlock(*this, Buffer, BD, ResStream); 278 } 279 280 void MangleContext::mangleDtorBlock(const CXXDestructorDecl *DD, 281 CXXDtorType DT, const BlockDecl *BD, 282 raw_ostream &ResStream) { 283 SmallString<64> Buffer; 284 llvm::raw_svector_ostream Out(Buffer); 285 mangleName(GlobalDecl(DD, DT), Out); 286 mangleFunctionBlock(*this, Buffer, BD, ResStream); 287 } 288 289 void MangleContext::mangleBlock(const DeclContext *DC, const BlockDecl *BD, 290 raw_ostream &Out) { 291 assert(!isa<CXXConstructorDecl>(DC) && !isa<CXXDestructorDecl>(DC)); 292 293 SmallString<64> Buffer; 294 llvm::raw_svector_ostream Stream(Buffer); 295 if (const ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(DC)) { 296 mangleObjCMethodNameAsSourceName(Method, Stream); 297 } else { 298 assert((isa<NamedDecl>(DC) || isa<BlockDecl>(DC)) && 299 "expected a NamedDecl or BlockDecl"); 300 if (isa<BlockDecl>(DC)) 301 for (; DC && isa<BlockDecl>(DC); DC = DC->getParent()) 302 (void) getBlockId(cast<BlockDecl>(DC), true); 303 assert((isa<TranslationUnitDecl>(DC) || isa<NamedDecl>(DC)) && 304 "expected a TranslationUnitDecl or a NamedDecl"); 305 if (const auto *CD = dyn_cast<CXXConstructorDecl>(DC)) 306 mangleCtorBlock(CD, /*CT*/ Ctor_Complete, BD, Out); 307 else if (const auto *DD = dyn_cast<CXXDestructorDecl>(DC)) 308 mangleDtorBlock(DD, /*DT*/ Dtor_Complete, BD, Out); 309 else if (auto ND = dyn_cast<NamedDecl>(DC)) { 310 if (!shouldMangleDeclName(ND) && ND->getIdentifier()) 311 Stream << ND->getIdentifier()->getName(); 312 else { 313 // FIXME: We were doing a mangleUnqualifiedName() before, but that's 314 // a private member of a class that will soon itself be private to the 315 // Itanium C++ ABI object. What should we do now? Right now, I'm just 316 // calling the mangleName() method on the MangleContext; is there a 317 // better way? 318 mangleName(ND, Stream); 319 } 320 } 321 } 322 mangleFunctionBlock(*this, Buffer, BD, Out); 323 } 324 325 void MangleContext::mangleObjCMethodName(const ObjCMethodDecl *MD, 326 raw_ostream &OS, 327 bool includePrefixByte, 328 bool includeCategoryNamespace) { 329 if (getASTContext().getLangOpts().ObjCRuntime.isGNUFamily()) { 330 // This is the mangling we've always used on the GNU runtimes, but it 331 // has obvious collisions in the face of underscores within class 332 // names, category names, and selectors; maybe we should improve it. 333 334 OS << (MD->isClassMethod() ? "_c_" : "_i_") 335 << MD->getClassInterface()->getName() << '_'; 336 337 if (includeCategoryNamespace) { 338 if (auto category = MD->getCategory()) 339 OS << category->getName(); 340 } 341 OS << '_'; 342 343 auto selector = MD->getSelector(); 344 for (unsigned slotIndex = 0, 345 numArgs = selector.getNumArgs(), 346 slotEnd = std::max(numArgs, 1U); 347 slotIndex != slotEnd; ++slotIndex) { 348 if (auto name = selector.getIdentifierInfoForSlot(slotIndex)) 349 OS << name->getName(); 350 351 // Replace all the positions that would've been ':' with '_'. 352 // That's after each slot except that a unary selector doesn't 353 // end in ':'. 354 if (numArgs) 355 OS << '_'; 356 } 357 358 return; 359 } 360 361 // \01+[ContainerName(CategoryName) SelectorName] 362 if (includePrefixByte) { 363 OS << '\01'; 364 } 365 OS << (MD->isInstanceMethod() ? '-' : '+') << '['; 366 if (const auto *CID = MD->getCategory()) { 367 OS << CID->getClassInterface()->getName(); 368 if (includeCategoryNamespace) { 369 OS << '(' << *CID << ')'; 370 } 371 } else if (const auto *CD = 372 dyn_cast<ObjCContainerDecl>(MD->getDeclContext())) { 373 OS << CD->getName(); 374 } else { 375 llvm_unreachable("Unexpected ObjC method decl context"); 376 } 377 OS << ' '; 378 MD->getSelector().print(OS); 379 OS << ']'; 380 } 381 382 void MangleContext::mangleObjCMethodNameAsSourceName(const ObjCMethodDecl *MD, 383 raw_ostream &Out) { 384 SmallString<64> Name; 385 llvm::raw_svector_ostream OS(Name); 386 387 mangleObjCMethodName(MD, OS, /*includePrefixByte=*/false, 388 /*includeCategoryNamespace=*/true); 389 Out << OS.str().size() << OS.str(); 390 } 391 392 class ASTNameGenerator::Implementation { 393 std::unique_ptr<MangleContext> MC; 394 llvm::DataLayout DL; 395 396 public: 397 explicit Implementation(ASTContext &Ctx) 398 : MC(Ctx.createMangleContext()), 399 DL(Ctx.getTargetInfo().getDataLayoutString()) {} 400 401 bool writeName(const Decl *D, raw_ostream &OS) { 402 // First apply frontend mangling. 403 SmallString<128> FrontendBuf; 404 llvm::raw_svector_ostream FrontendBufOS(FrontendBuf); 405 if (auto *FD = dyn_cast<FunctionDecl>(D)) { 406 if (FD->isDependentContext()) 407 return true; 408 if (writeFuncOrVarName(FD, FrontendBufOS)) 409 return true; 410 } else if (auto *VD = dyn_cast<VarDecl>(D)) { 411 if (writeFuncOrVarName(VD, FrontendBufOS)) 412 return true; 413 } else if (auto *MD = dyn_cast<ObjCMethodDecl>(D)) { 414 MC->mangleObjCMethodName(MD, OS, /*includePrefixByte=*/false, 415 /*includeCategoryNamespace=*/true); 416 return false; 417 } else if (auto *ID = dyn_cast<ObjCInterfaceDecl>(D)) { 418 writeObjCClassName(ID, FrontendBufOS); 419 } else { 420 return true; 421 } 422 423 // Now apply backend mangling. 424 llvm::Mangler::getNameWithPrefix(OS, FrontendBufOS.str(), DL); 425 return false; 426 } 427 428 std::string getName(const Decl *D) { 429 std::string Name; 430 { 431 llvm::raw_string_ostream OS(Name); 432 writeName(D, OS); 433 } 434 return Name; 435 } 436 437 enum ObjCKind { 438 ObjCClass, 439 ObjCMetaclass, 440 }; 441 442 static StringRef getClassSymbolPrefix(ObjCKind Kind, 443 const ASTContext &Context) { 444 if (Context.getLangOpts().ObjCRuntime.isGNUFamily()) 445 return Kind == ObjCMetaclass ? "_OBJC_METACLASS_" : "_OBJC_CLASS_"; 446 return Kind == ObjCMetaclass ? "OBJC_METACLASS_$_" : "OBJC_CLASS_$_"; 447 } 448 449 std::vector<std::string> getAllManglings(const ObjCContainerDecl *OCD) { 450 StringRef ClassName; 451 if (const auto *OID = dyn_cast<ObjCInterfaceDecl>(OCD)) 452 ClassName = OID->getObjCRuntimeNameAsString(); 453 else if (const auto *OID = dyn_cast<ObjCImplementationDecl>(OCD)) 454 ClassName = OID->getObjCRuntimeNameAsString(); 455 456 if (ClassName.empty()) 457 return {}; 458 459 auto Mangle = [&](ObjCKind Kind, StringRef ClassName) -> std::string { 460 SmallString<40> Mangled; 461 auto Prefix = getClassSymbolPrefix(Kind, OCD->getASTContext()); 462 llvm::Mangler::getNameWithPrefix(Mangled, Prefix + ClassName, DL); 463 return std::string(Mangled.str()); 464 }; 465 466 return { 467 Mangle(ObjCClass, ClassName), 468 Mangle(ObjCMetaclass, ClassName), 469 }; 470 } 471 472 std::vector<std::string> getAllManglings(const Decl *D) { 473 if (const auto *OCD = dyn_cast<ObjCContainerDecl>(D)) 474 return getAllManglings(OCD); 475 476 if (!(isa<CXXRecordDecl>(D) || isa<CXXMethodDecl>(D))) 477 return {}; 478 479 const NamedDecl *ND = cast<NamedDecl>(D); 480 481 ASTContext &Ctx = ND->getASTContext(); 482 std::unique_ptr<MangleContext> M(Ctx.createMangleContext()); 483 484 std::vector<std::string> Manglings; 485 486 auto hasDefaultCXXMethodCC = [](ASTContext &C, const CXXMethodDecl *MD) { 487 auto DefaultCC = C.getDefaultCallingConvention(/*IsVariadic=*/false, 488 /*IsCXXMethod=*/true); 489 auto CC = MD->getType()->castAs<FunctionProtoType>()->getCallConv(); 490 return CC == DefaultCC; 491 }; 492 493 if (const auto *CD = dyn_cast_or_null<CXXConstructorDecl>(ND)) { 494 Manglings.emplace_back(getMangledStructor(CD, Ctor_Base)); 495 496 if (Ctx.getTargetInfo().getCXXABI().isItaniumFamily()) 497 if (!CD->getParent()->isAbstract()) 498 Manglings.emplace_back(getMangledStructor(CD, Ctor_Complete)); 499 500 if (Ctx.getTargetInfo().getCXXABI().isMicrosoft()) 501 if (CD->hasAttr<DLLExportAttr>() && CD->isDefaultConstructor()) 502 if (!(hasDefaultCXXMethodCC(Ctx, CD) && CD->getNumParams() == 0)) 503 Manglings.emplace_back(getMangledStructor(CD, Ctor_DefaultClosure)); 504 } else if (const auto *DD = dyn_cast_or_null<CXXDestructorDecl>(ND)) { 505 Manglings.emplace_back(getMangledStructor(DD, Dtor_Base)); 506 if (Ctx.getTargetInfo().getCXXABI().isItaniumFamily()) { 507 Manglings.emplace_back(getMangledStructor(DD, Dtor_Complete)); 508 if (DD->isVirtual()) 509 Manglings.emplace_back(getMangledStructor(DD, Dtor_Deleting)); 510 } 511 } else if (const auto *MD = dyn_cast_or_null<CXXMethodDecl>(ND)) { 512 Manglings.emplace_back(getName(ND)); 513 if (MD->isVirtual()) 514 if (const auto *TIV = Ctx.getVTableContext()->getThunkInfo(MD)) 515 for (const auto &T : *TIV) 516 Manglings.emplace_back(getMangledThunk(MD, T)); 517 } 518 519 return Manglings; 520 } 521 522 private: 523 bool writeFuncOrVarName(const NamedDecl *D, raw_ostream &OS) { 524 if (MC->shouldMangleDeclName(D)) { 525 GlobalDecl GD; 526 if (const auto *CtorD = dyn_cast<CXXConstructorDecl>(D)) 527 GD = GlobalDecl(CtorD, Ctor_Complete); 528 else if (const auto *DtorD = dyn_cast<CXXDestructorDecl>(D)) 529 GD = GlobalDecl(DtorD, Dtor_Complete); 530 else if (D->hasAttr<CUDAGlobalAttr>()) 531 GD = GlobalDecl(cast<FunctionDecl>(D)); 532 else 533 GD = GlobalDecl(D); 534 MC->mangleName(GD, OS); 535 return false; 536 } else { 537 IdentifierInfo *II = D->getIdentifier(); 538 if (!II) 539 return true; 540 OS << II->getName(); 541 return false; 542 } 543 } 544 545 void writeObjCClassName(const ObjCInterfaceDecl *D, raw_ostream &OS) { 546 OS << getClassSymbolPrefix(ObjCClass, D->getASTContext()); 547 OS << D->getObjCRuntimeNameAsString(); 548 } 549 550 std::string getMangledStructor(const NamedDecl *ND, unsigned StructorType) { 551 std::string FrontendBuf; 552 llvm::raw_string_ostream FOS(FrontendBuf); 553 554 GlobalDecl GD; 555 if (const auto *CD = dyn_cast_or_null<CXXConstructorDecl>(ND)) 556 GD = GlobalDecl(CD, static_cast<CXXCtorType>(StructorType)); 557 else if (const auto *DD = dyn_cast_or_null<CXXDestructorDecl>(ND)) 558 GD = GlobalDecl(DD, static_cast<CXXDtorType>(StructorType)); 559 MC->mangleName(GD, FOS); 560 561 std::string BackendBuf; 562 llvm::raw_string_ostream BOS(BackendBuf); 563 564 llvm::Mangler::getNameWithPrefix(BOS, FOS.str(), DL); 565 566 return BOS.str(); 567 } 568 569 std::string getMangledThunk(const CXXMethodDecl *MD, const ThunkInfo &T) { 570 std::string FrontendBuf; 571 llvm::raw_string_ostream FOS(FrontendBuf); 572 573 MC->mangleThunk(MD, T, FOS); 574 575 std::string BackendBuf; 576 llvm::raw_string_ostream BOS(BackendBuf); 577 578 llvm::Mangler::getNameWithPrefix(BOS, FOS.str(), DL); 579 580 return BOS.str(); 581 } 582 }; 583 584 ASTNameGenerator::ASTNameGenerator(ASTContext &Ctx) 585 : Impl(std::make_unique<Implementation>(Ctx)) {} 586 587 ASTNameGenerator::~ASTNameGenerator() {} 588 589 bool ASTNameGenerator::writeName(const Decl *D, raw_ostream &OS) { 590 return Impl->writeName(D, OS); 591 } 592 593 std::string ASTNameGenerator::getName(const Decl *D) { 594 return Impl->getName(D); 595 } 596 597 std::vector<std::string> ASTNameGenerator::getAllManglings(const Decl *D) { 598 return Impl->getAllManglings(D); 599 } 600