1 //===-- ClangASTSource.cpp ---------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "ClangASTSource.h" 11 12 #include "ASTDumper.h" 13 #include "ClangModulesDeclVendor.h" 14 15 #include "lldb/Core/Log.h" 16 #include "lldb/Core/Module.h" 17 #include "lldb/Core/ModuleList.h" 18 #include "lldb/Symbol/ClangASTContext.h" 19 #include "lldb/Symbol/ClangUtil.h" 20 #include "lldb/Symbol/CompilerDeclContext.h" 21 #include "lldb/Symbol/Function.h" 22 #include "lldb/Symbol/SymbolFile.h" 23 #include "lldb/Symbol/SymbolVendor.h" 24 #include "lldb/Symbol/TaggedASTType.h" 25 #include "lldb/Target/ObjCLanguageRuntime.h" 26 #include "lldb/Target/Target.h" 27 #include "clang/AST/ASTContext.h" 28 #include "clang/AST/RecordLayout.h" 29 30 #include <vector> 31 32 using namespace clang; 33 using namespace lldb_private; 34 35 //------------------------------------------------------------------ 36 // Scoped class that will remove an active lexical decl from the set 37 // when it goes out of scope. 38 //------------------------------------------------------------------ 39 namespace { 40 class ScopedLexicalDeclEraser 41 { 42 public: 43 ScopedLexicalDeclEraser(std::set<const clang::Decl *> &decls, 44 const clang::Decl *decl) 45 : m_active_lexical_decls(decls), m_decl(decl) 46 { 47 } 48 49 ~ScopedLexicalDeclEraser() 50 { 51 m_active_lexical_decls.erase(m_decl); 52 } 53 54 private: 55 std::set<const clang::Decl *> &m_active_lexical_decls; 56 const clang::Decl *m_decl; 57 }; 58 } 59 60 ClangASTSource::~ClangASTSource() 61 { 62 m_ast_importer_sp->ForgetDestination(m_ast_context); 63 64 // We are in the process of destruction, don't create clang ast context on demand 65 // by passing false to Target::GetScratchClangASTContext(create_on_demand). 66 ClangASTContext *scratch_clang_ast_context = m_target->GetScratchClangASTContext(false); 67 68 if (!scratch_clang_ast_context) 69 return; 70 71 clang::ASTContext *scratch_ast_context = scratch_clang_ast_context->getASTContext(); 72 73 if (!scratch_ast_context) 74 return; 75 76 if (m_ast_context != scratch_ast_context) 77 m_ast_importer_sp->ForgetSource(scratch_ast_context, m_ast_context); 78 } 79 80 void 81 ClangASTSource::StartTranslationUnit(ASTConsumer *Consumer) 82 { 83 if (!m_ast_context) 84 return; 85 86 m_ast_context->getTranslationUnitDecl()->setHasExternalVisibleStorage(); 87 m_ast_context->getTranslationUnitDecl()->setHasExternalLexicalStorage(); 88 } 89 90 // The core lookup interface. 91 bool 92 ClangASTSource::FindExternalVisibleDeclsByName 93 ( 94 const DeclContext *decl_ctx, 95 DeclarationName clang_decl_name 96 ) 97 { 98 if (!m_ast_context) 99 { 100 SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name); 101 return false; 102 } 103 104 if (GetImportInProgress()) 105 { 106 SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name); 107 return false; 108 } 109 110 std::string decl_name (clang_decl_name.getAsString()); 111 112 // if (m_decl_map.DoingASTImport ()) 113 // return DeclContext::lookup_result(); 114 // 115 switch (clang_decl_name.getNameKind()) { 116 // Normal identifiers. 117 case DeclarationName::Identifier: 118 { 119 clang::IdentifierInfo *identifier_info = clang_decl_name.getAsIdentifierInfo(); 120 121 if (!identifier_info || 122 identifier_info->getBuiltinID() != 0) 123 { 124 SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name); 125 return false; 126 } 127 } 128 break; 129 130 // Operator names. 131 case DeclarationName::CXXOperatorName: 132 case DeclarationName::CXXLiteralOperatorName: 133 break; 134 135 // Using directives found in this context. 136 // Tell Sema we didn't find any or we'll end up getting asked a *lot*. 137 case DeclarationName::CXXUsingDirective: 138 SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name); 139 return false; 140 141 case DeclarationName::ObjCZeroArgSelector: 142 case DeclarationName::ObjCOneArgSelector: 143 case DeclarationName::ObjCMultiArgSelector: 144 { 145 llvm::SmallVector<NamedDecl*, 1> method_decls; 146 147 NameSearchContext method_search_context (*this, method_decls, clang_decl_name, decl_ctx); 148 149 FindObjCMethodDecls(method_search_context); 150 151 SetExternalVisibleDeclsForName (decl_ctx, clang_decl_name, method_decls); 152 return (method_decls.size() > 0); 153 } 154 // These aren't possible in the global context. 155 case DeclarationName::CXXConstructorName: 156 case DeclarationName::CXXDestructorName: 157 case DeclarationName::CXXConversionFunctionName: 158 SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name); 159 return false; 160 } 161 162 163 if (!GetLookupsEnabled()) 164 { 165 // Wait until we see a '$' at the start of a name before we start doing 166 // any lookups so we can avoid lookup up all of the builtin types. 167 if (!decl_name.empty() && decl_name[0] == '$') 168 { 169 SetLookupsEnabled (true); 170 } 171 else 172 { 173 SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name); 174 return false; 175 } 176 } 177 178 ConstString const_decl_name(decl_name.c_str()); 179 180 const char *uniqued_const_decl_name = const_decl_name.GetCString(); 181 if (m_active_lookups.find (uniqued_const_decl_name) != m_active_lookups.end()) 182 { 183 // We are currently looking up this name... 184 SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name); 185 return false; 186 } 187 m_active_lookups.insert(uniqued_const_decl_name); 188 // static uint32_t g_depth = 0; 189 // ++g_depth; 190 // printf("[%5u] FindExternalVisibleDeclsByName() \"%s\"\n", g_depth, uniqued_const_decl_name); 191 llvm::SmallVector<NamedDecl*, 4> name_decls; 192 NameSearchContext name_search_context(*this, name_decls, clang_decl_name, decl_ctx); 193 FindExternalVisibleDecls(name_search_context); 194 SetExternalVisibleDeclsForName (decl_ctx, clang_decl_name, name_decls); 195 // --g_depth; 196 m_active_lookups.erase (uniqued_const_decl_name); 197 return (name_decls.size() != 0); 198 } 199 200 void 201 ClangASTSource::CompleteType (TagDecl *tag_decl) 202 { 203 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 204 205 static unsigned int invocation_id = 0; 206 unsigned int current_id = invocation_id++; 207 208 if (log) 209 { 210 log->Printf(" CompleteTagDecl[%u] on (ASTContext*)%p Completing (TagDecl*)%p named %s", 211 current_id, static_cast<void*>(m_ast_context), 212 static_cast<void*>(tag_decl), 213 tag_decl->getName().str().c_str()); 214 215 log->Printf(" CTD[%u] Before:", current_id); 216 ASTDumper dumper((Decl*)tag_decl); 217 dumper.ToLog(log, " [CTD] "); 218 } 219 220 auto iter = m_active_lexical_decls.find(tag_decl); 221 if (iter != m_active_lexical_decls.end()) 222 return; 223 m_active_lexical_decls.insert(tag_decl); 224 ScopedLexicalDeclEraser eraser(m_active_lexical_decls, tag_decl); 225 226 if (!m_ast_importer_sp->CompleteTagDecl (tag_decl)) 227 { 228 // We couldn't complete the type. Maybe there's a definition 229 // somewhere else that can be completed. 230 231 if (log) 232 log->Printf(" CTD[%u] Type could not be completed in the module in which it was first found.", current_id); 233 234 bool found = false; 235 236 DeclContext *decl_ctx = tag_decl->getDeclContext(); 237 238 if (const NamespaceDecl *namespace_context = dyn_cast<NamespaceDecl>(decl_ctx)) 239 { 240 ClangASTImporter::NamespaceMapSP namespace_map = m_ast_importer_sp->GetNamespaceMap(namespace_context); 241 242 if (log && log->GetVerbose()) 243 log->Printf(" CTD[%u] Inspecting namespace map %p (%d entries)", 244 current_id, static_cast<void*>(namespace_map.get()), 245 static_cast<int>(namespace_map->size())); 246 247 if (!namespace_map) 248 return; 249 250 for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(), e = namespace_map->end(); 251 i != e && !found; 252 ++i) 253 { 254 if (log) 255 log->Printf(" CTD[%u] Searching namespace %s in module %s", 256 current_id, 257 i->second.GetName().AsCString(), 258 i->first->GetFileSpec().GetFilename().GetCString()); 259 260 TypeList types; 261 262 SymbolContext null_sc; 263 ConstString name(tag_decl->getName().str().c_str()); 264 265 i->first->FindTypesInNamespace(null_sc, name, &i->second, UINT32_MAX, types); 266 267 for (uint32_t ti = 0, te = types.GetSize(); 268 ti != te && !found; 269 ++ti) 270 { 271 lldb::TypeSP type = types.GetTypeAtIndex(ti); 272 273 if (!type) 274 continue; 275 276 CompilerType clang_type (type->GetFullCompilerType ()); 277 278 if (!ClangUtil::IsClangType(clang_type)) 279 continue; 280 281 const TagType *tag_type = ClangUtil::GetQualType(clang_type)->getAs<TagType>(); 282 283 if (!tag_type) 284 continue; 285 286 TagDecl *candidate_tag_decl = const_cast<TagDecl*>(tag_type->getDecl()); 287 288 if (m_ast_importer_sp->CompleteTagDeclWithOrigin (tag_decl, candidate_tag_decl)) 289 found = true; 290 } 291 } 292 } 293 else 294 { 295 TypeList types; 296 297 SymbolContext null_sc; 298 ConstString name(tag_decl->getName().str().c_str()); 299 CompilerDeclContext namespace_decl; 300 301 const ModuleList &module_list = m_target->GetImages(); 302 303 bool exact_match = false; 304 llvm::DenseSet<SymbolFile *> searched_symbol_files; 305 module_list.FindTypes (null_sc, name, exact_match, UINT32_MAX, searched_symbol_files, types); 306 307 for (uint32_t ti = 0, te = types.GetSize(); 308 ti != te && !found; 309 ++ti) 310 { 311 lldb::TypeSP type = types.GetTypeAtIndex(ti); 312 313 if (!type) 314 continue; 315 316 CompilerType clang_type (type->GetFullCompilerType ()); 317 318 if (!ClangUtil::IsClangType(clang_type)) 319 continue; 320 321 const TagType *tag_type = ClangUtil::GetQualType(clang_type)->getAs<TagType>(); 322 323 if (!tag_type) 324 continue; 325 326 TagDecl *candidate_tag_decl = const_cast<TagDecl*>(tag_type->getDecl()); 327 328 // We have found a type by basename and we need to make sure the decl contexts 329 // are the same before we can try to complete this type with another 330 if (!ClangASTContext::DeclsAreEquivalent (tag_decl, candidate_tag_decl)) 331 continue; 332 333 if (m_ast_importer_sp->CompleteTagDeclWithOrigin (tag_decl, candidate_tag_decl)) 334 found = true; 335 } 336 } 337 } 338 339 if (log) 340 { 341 log->Printf(" [CTD] After:"); 342 ASTDumper dumper((Decl*)tag_decl); 343 dumper.ToLog(log, " [CTD] "); 344 } 345 } 346 347 void 348 ClangASTSource::CompleteType (clang::ObjCInterfaceDecl *interface_decl) 349 { 350 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 351 352 if (log) 353 { 354 log->Printf(" [CompleteObjCInterfaceDecl] on (ASTContext*)%p Completing an ObjCInterfaceDecl named %s", 355 static_cast<void*>(m_ast_context), 356 interface_decl->getName().str().c_str()); 357 log->Printf(" [COID] Before:"); 358 ASTDumper dumper((Decl*)interface_decl); 359 dumper.ToLog(log, " [COID] "); 360 } 361 362 Decl *original_decl = NULL; 363 ASTContext *original_ctx = NULL; 364 365 if (m_ast_importer_sp->ResolveDeclOrigin(interface_decl, &original_decl, &original_ctx)) 366 { 367 if (ObjCInterfaceDecl *original_iface_decl = dyn_cast<ObjCInterfaceDecl>(original_decl)) 368 { 369 ObjCInterfaceDecl *complete_iface_decl = GetCompleteObjCInterface(original_iface_decl); 370 371 if (complete_iface_decl && (complete_iface_decl != original_iface_decl)) 372 { 373 m_ast_importer_sp->SetDeclOrigin(interface_decl, original_iface_decl); 374 } 375 } 376 } 377 378 m_ast_importer_sp->CompleteObjCInterfaceDecl (interface_decl); 379 380 if (interface_decl->getSuperClass() && 381 interface_decl->getSuperClass() != interface_decl) 382 CompleteType(interface_decl->getSuperClass()); 383 384 if (log) 385 { 386 log->Printf(" [COID] After:"); 387 ASTDumper dumper((Decl*)interface_decl); 388 dumper.ToLog(log, " [COID] "); 389 } 390 } 391 392 clang::ObjCInterfaceDecl * 393 ClangASTSource::GetCompleteObjCInterface (clang::ObjCInterfaceDecl *interface_decl) 394 { 395 lldb::ProcessSP process(m_target->GetProcessSP()); 396 397 if (!process) 398 return NULL; 399 400 ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime()); 401 402 if (!language_runtime) 403 return NULL; 404 405 ConstString class_name(interface_decl->getNameAsString().c_str()); 406 407 lldb::TypeSP complete_type_sp(language_runtime->LookupInCompleteClassCache(class_name)); 408 409 if (!complete_type_sp) 410 return NULL; 411 412 TypeFromUser complete_type = TypeFromUser(complete_type_sp->GetFullCompilerType ()); 413 lldb::opaque_compiler_type_t complete_opaque_type = complete_type.GetOpaqueQualType(); 414 415 if (!complete_opaque_type) 416 return NULL; 417 418 const clang::Type *complete_clang_type = QualType::getFromOpaquePtr(complete_opaque_type).getTypePtr(); 419 const ObjCInterfaceType *complete_interface_type = dyn_cast<ObjCInterfaceType>(complete_clang_type); 420 421 if (!complete_interface_type) 422 return NULL; 423 424 ObjCInterfaceDecl *complete_iface_decl(complete_interface_type->getDecl()); 425 426 return complete_iface_decl; 427 } 428 429 void 430 ClangASTSource::FindExternalLexicalDecls (const DeclContext *decl_context, 431 llvm::function_ref<bool(Decl::Kind)> predicate, 432 llvm::SmallVectorImpl<Decl*> &decls) 433 { 434 ClangASTMetrics::RegisterLexicalQuery(); 435 436 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 437 438 const Decl *context_decl = dyn_cast<Decl>(decl_context); 439 440 if (!context_decl) 441 return; 442 443 auto iter = m_active_lexical_decls.find(context_decl); 444 if (iter != m_active_lexical_decls.end()) 445 return; 446 m_active_lexical_decls.insert(context_decl); 447 ScopedLexicalDeclEraser eraser(m_active_lexical_decls, context_decl); 448 449 static unsigned int invocation_id = 0; 450 unsigned int current_id = invocation_id++; 451 452 if (log) 453 { 454 if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context_decl)) 455 log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in '%s' (%sDecl*)%p", 456 current_id, static_cast<void*>(m_ast_context), 457 context_named_decl->getNameAsString().c_str(), 458 context_decl->getDeclKindName(), 459 static_cast<const void*>(context_decl)); 460 else if(context_decl) 461 log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in (%sDecl*)%p", 462 current_id, static_cast<void*>(m_ast_context), 463 context_decl->getDeclKindName(), 464 static_cast<const void*>(context_decl)); 465 else 466 log->Printf("FindExternalLexicalDecls[%u] on (ASTContext*)%p in a NULL context", 467 current_id, static_cast<const void*>(m_ast_context)); 468 } 469 470 Decl *original_decl = NULL; 471 ASTContext *original_ctx = NULL; 472 473 if (!m_ast_importer_sp->ResolveDeclOrigin(context_decl, &original_decl, &original_ctx)) 474 return; 475 476 if (log) 477 { 478 log->Printf(" FELD[%u] Original decl (ASTContext*)%p (Decl*)%p:", 479 current_id, static_cast<void*>(original_ctx), 480 static_cast<void*>(original_decl)); 481 ASTDumper(original_decl).ToLog(log, " "); 482 } 483 484 if (ObjCInterfaceDecl *original_iface_decl = dyn_cast<ObjCInterfaceDecl>(original_decl)) 485 { 486 ObjCInterfaceDecl *complete_iface_decl = GetCompleteObjCInterface(original_iface_decl); 487 488 if (complete_iface_decl && (complete_iface_decl != original_iface_decl)) 489 { 490 original_decl = complete_iface_decl; 491 original_ctx = &complete_iface_decl->getASTContext(); 492 493 m_ast_importer_sp->SetDeclOrigin(context_decl, original_iface_decl); 494 } 495 } 496 497 if (TagDecl *original_tag_decl = dyn_cast<TagDecl>(original_decl)) 498 { 499 ExternalASTSource *external_source = original_ctx->getExternalSource(); 500 501 if (external_source) 502 external_source->CompleteType (original_tag_decl); 503 } 504 505 const DeclContext *original_decl_context = dyn_cast<DeclContext>(original_decl); 506 507 if (!original_decl_context) 508 return; 509 510 for (TagDecl::decl_iterator iter = original_decl_context->decls_begin(); 511 iter != original_decl_context->decls_end(); 512 ++iter) 513 { 514 Decl *decl = *iter; 515 516 if (predicate(decl->getKind())) 517 { 518 if (log) 519 { 520 ASTDumper ast_dumper(decl); 521 if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context_decl)) 522 log->Printf(" FELD[%d] Adding [to %sDecl %s] lexical %sDecl %s", current_id, context_named_decl->getDeclKindName(), context_named_decl->getNameAsString().c_str(), decl->getDeclKindName(), ast_dumper.GetCString()); 523 else 524 log->Printf(" FELD[%d] Adding lexical %sDecl %s", current_id, decl->getDeclKindName(), ast_dumper.GetCString()); 525 } 526 527 Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, original_ctx, decl); 528 529 if (!copied_decl) 530 continue; 531 532 if (FieldDecl *copied_field = dyn_cast<FieldDecl>(copied_decl)) 533 { 534 QualType copied_field_type = copied_field->getType(); 535 536 m_ast_importer_sp->RequireCompleteType(copied_field_type); 537 } 538 539 DeclContext *decl_context_non_const = const_cast<DeclContext *>(decl_context); 540 541 if (copied_decl->getDeclContext() != decl_context) 542 { 543 if (copied_decl->getDeclContext()->containsDecl(copied_decl)) 544 copied_decl->getDeclContext()->removeDecl(copied_decl); 545 copied_decl->setDeclContext(decl_context_non_const); 546 } 547 548 if (!decl_context_non_const->containsDecl(copied_decl)) 549 decl_context_non_const->addDeclInternal(copied_decl); 550 } 551 } 552 553 return; 554 } 555 556 void 557 ClangASTSource::FindExternalVisibleDecls (NameSearchContext &context) 558 { 559 assert (m_ast_context); 560 561 ClangASTMetrics::RegisterVisibleQuery(); 562 563 const ConstString name(context.m_decl_name.getAsString().c_str()); 564 565 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 566 567 static unsigned int invocation_id = 0; 568 unsigned int current_id = invocation_id++; 569 570 if (log) 571 { 572 if (!context.m_decl_context) 573 log->Printf("ClangASTSource::FindExternalVisibleDecls[%u] on (ASTContext*)%p for '%s' in a NULL DeclContext", 574 current_id, static_cast<void*>(m_ast_context), 575 name.GetCString()); 576 else if (const NamedDecl *context_named_decl = dyn_cast<NamedDecl>(context.m_decl_context)) 577 log->Printf("ClangASTSource::FindExternalVisibleDecls[%u] on (ASTContext*)%p for '%s' in '%s'", 578 current_id, static_cast<void*>(m_ast_context), 579 name.GetCString(), 580 context_named_decl->getNameAsString().c_str()); 581 else 582 log->Printf("ClangASTSource::FindExternalVisibleDecls[%u] on (ASTContext*)%p for '%s' in a '%s'", 583 current_id, static_cast<void*>(m_ast_context), 584 name.GetCString(), 585 context.m_decl_context->getDeclKindName()); 586 } 587 588 context.m_namespace_map.reset(new ClangASTImporter::NamespaceMap); 589 590 if (const NamespaceDecl *namespace_context = dyn_cast<NamespaceDecl>(context.m_decl_context)) 591 { 592 ClangASTImporter::NamespaceMapSP namespace_map = m_ast_importer_sp->GetNamespaceMap(namespace_context); 593 594 if (log && log->GetVerbose()) 595 log->Printf(" CAS::FEVD[%u] Inspecting namespace map %p (%d entries)", 596 current_id, static_cast<void*>(namespace_map.get()), 597 static_cast<int>(namespace_map->size())); 598 599 if (!namespace_map) 600 return; 601 602 for (ClangASTImporter::NamespaceMap::iterator i = namespace_map->begin(), e = namespace_map->end(); 603 i != e; 604 ++i) 605 { 606 if (log) 607 log->Printf(" CAS::FEVD[%u] Searching namespace %s in module %s", 608 current_id, 609 i->second.GetName().AsCString(), 610 i->first->GetFileSpec().GetFilename().GetCString()); 611 612 FindExternalVisibleDecls(context, 613 i->first, 614 i->second, 615 current_id); 616 } 617 } 618 else if (isa<ObjCInterfaceDecl>(context.m_decl_context)) 619 { 620 FindObjCPropertyAndIvarDecls(context); 621 } 622 else if (!isa<TranslationUnitDecl>(context.m_decl_context)) 623 { 624 // we shouldn't be getting FindExternalVisibleDecls calls for these 625 return; 626 } 627 else 628 { 629 CompilerDeclContext namespace_decl; 630 631 if (log) 632 log->Printf(" CAS::FEVD[%u] Searching the root namespace", current_id); 633 634 FindExternalVisibleDecls(context, 635 lldb::ModuleSP(), 636 namespace_decl, 637 current_id); 638 } 639 640 if (!context.m_namespace_map->empty()) 641 { 642 if (log && log->GetVerbose()) 643 log->Printf(" CAS::FEVD[%u] Registering namespace map %p (%d entries)", 644 current_id, 645 static_cast<void*>(context.m_namespace_map.get()), 646 static_cast<int>(context.m_namespace_map->size())); 647 648 NamespaceDecl *clang_namespace_decl = AddNamespace(context, context.m_namespace_map); 649 650 if (clang_namespace_decl) 651 clang_namespace_decl->setHasExternalVisibleStorage(); 652 } 653 } 654 655 void 656 ClangASTSource::FindExternalVisibleDecls (NameSearchContext &context, 657 lldb::ModuleSP module_sp, 658 CompilerDeclContext &namespace_decl, 659 unsigned int current_id) 660 { 661 assert (m_ast_context); 662 663 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 664 665 SymbolContextList sc_list; 666 667 const ConstString name(context.m_decl_name.getAsString().c_str()); 668 669 const char *name_unique_cstr = name.GetCString(); 670 671 static ConstString id_name("id"); 672 static ConstString Class_name("Class"); 673 674 if (name == id_name || name == Class_name) 675 return; 676 677 if (name_unique_cstr == NULL) 678 return; 679 680 // The ClangASTSource is not responsible for finding $-names. 681 if (name_unique_cstr[0] == '$') 682 return; 683 684 if (module_sp && namespace_decl) 685 { 686 CompilerDeclContext found_namespace_decl; 687 688 SymbolVendor *symbol_vendor = module_sp->GetSymbolVendor(); 689 690 if (symbol_vendor) 691 { 692 SymbolContext null_sc; 693 694 found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &namespace_decl); 695 696 if (found_namespace_decl) 697 { 698 context.m_namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(module_sp, found_namespace_decl)); 699 700 if (log) 701 log->Printf(" CAS::FEVD[%u] Found namespace %s in module %s", 702 current_id, 703 name.GetCString(), 704 module_sp->GetFileSpec().GetFilename().GetCString()); 705 } 706 } 707 } 708 else 709 { 710 const ModuleList &target_images = m_target->GetImages(); 711 Mutex::Locker modules_locker (target_images.GetMutex()); 712 713 for (size_t i = 0, e = target_images.GetSize(); i < e; ++i) 714 { 715 lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i); 716 717 if (!image) 718 continue; 719 720 CompilerDeclContext found_namespace_decl; 721 722 SymbolVendor *symbol_vendor = image->GetSymbolVendor(); 723 724 if (!symbol_vendor) 725 continue; 726 727 SymbolContext null_sc; 728 729 found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &namespace_decl); 730 731 if (found_namespace_decl) 732 { 733 context.m_namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(image, found_namespace_decl)); 734 735 if (log) 736 log->Printf(" CAS::FEVD[%u] Found namespace %s in module %s", 737 current_id, 738 name.GetCString(), 739 image->GetFileSpec().GetFilename().GetCString()); 740 } 741 } 742 } 743 744 do 745 { 746 TypeList types; 747 SymbolContext null_sc; 748 const bool exact_match = false; 749 llvm::DenseSet<lldb_private::SymbolFile *> searched_symbol_files; 750 if (module_sp && namespace_decl) 751 module_sp->FindTypesInNamespace(null_sc, name, &namespace_decl, 1, types); 752 else 753 m_target->GetImages().FindTypes(null_sc, name, exact_match, 1, searched_symbol_files, types); 754 755 bool found_a_type = false; 756 757 if (size_t num_types = types.GetSize()) 758 { 759 for (size_t ti = 0; ti < num_types; ++ti) 760 { 761 lldb::TypeSP type_sp = types.GetTypeAtIndex(ti); 762 763 if (log) 764 { 765 const char *name_string = type_sp->GetName().GetCString(); 766 767 log->Printf(" CAS::FEVD[%u] Matching type found for \"%s\": %s", 768 current_id, 769 name.GetCString(), 770 (name_string ? name_string : "<anonymous>")); 771 } 772 773 CompilerType full_type = type_sp->GetFullCompilerType(); 774 775 CompilerType copied_clang_type (GuardedCopyType(full_type)); 776 777 if (!copied_clang_type) 778 { 779 if (log) 780 log->Printf(" CAS::FEVD[%u] - Couldn't export a type", 781 current_id); 782 783 continue; 784 } 785 786 context.AddTypeDecl(copied_clang_type); 787 788 found_a_type = true; 789 break; 790 } 791 } 792 793 if (!found_a_type) 794 { 795 // Try the modules next. 796 797 do 798 { 799 if (ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor()) 800 { 801 bool append = false; 802 uint32_t max_matches = 1; 803 std::vector <clang::NamedDecl *> decls; 804 805 if (!modules_decl_vendor->FindDecls(name, 806 append, 807 max_matches, 808 decls)) 809 break; 810 811 if (log) 812 { 813 log->Printf(" CAS::FEVD[%u] Matching entity found for \"%s\" in the modules", 814 current_id, 815 name.GetCString()); 816 } 817 818 clang::NamedDecl *const decl_from_modules = decls[0]; 819 820 if (llvm::isa<clang::TypeDecl>(decl_from_modules) || 821 llvm::isa<clang::ObjCContainerDecl>(decl_from_modules) || 822 llvm::isa<clang::EnumConstantDecl>(decl_from_modules)) 823 { 824 clang::Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, &decl_from_modules->getASTContext(), decl_from_modules); 825 clang::NamedDecl *copied_named_decl = copied_decl ? dyn_cast<clang::NamedDecl>(copied_decl) : nullptr; 826 827 if (!copied_named_decl) 828 { 829 if (log) 830 log->Printf(" CAS::FEVD[%u] - Couldn't export a type from the modules", 831 current_id); 832 833 break; 834 } 835 836 context.AddNamedDecl(copied_named_decl); 837 838 found_a_type = true; 839 } 840 } 841 } while (0); 842 } 843 844 if (!found_a_type) 845 { 846 do 847 { 848 // Couldn't find any types elsewhere. Try the Objective-C runtime if one exists. 849 850 lldb::ProcessSP process(m_target->GetProcessSP()); 851 852 if (!process) 853 break; 854 855 ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime()); 856 857 if (!language_runtime) 858 break; 859 860 DeclVendor *decl_vendor = language_runtime->GetDeclVendor(); 861 862 if (!decl_vendor) 863 break; 864 865 bool append = false; 866 uint32_t max_matches = 1; 867 std::vector <clang::NamedDecl *> decls; 868 869 if (!decl_vendor->FindDecls(name, 870 append, 871 max_matches, 872 decls)) 873 break; 874 875 if (log) 876 { 877 log->Printf(" CAS::FEVD[%u] Matching type found for \"%s\" in the runtime", 878 current_id, 879 name.GetCString()); 880 } 881 882 clang::Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, &decls[0]->getASTContext(), decls[0]); 883 clang::NamedDecl *copied_named_decl = copied_decl ? dyn_cast<clang::NamedDecl>(copied_decl) : nullptr; 884 885 if (!copied_named_decl) 886 { 887 if (log) 888 log->Printf(" CAS::FEVD[%u] - Couldn't export a type from the runtime", 889 current_id); 890 891 break; 892 } 893 894 context.AddNamedDecl(copied_named_decl); 895 } 896 while(0); 897 } 898 899 } while(0); 900 } 901 902 template <class D> class TaggedASTDecl { 903 public: 904 TaggedASTDecl() : decl(NULL) { } 905 TaggedASTDecl(D *_decl) : decl(_decl) { } 906 bool IsValid() const { return (decl != NULL); } 907 bool IsInvalid() const { return !IsValid(); } 908 D *operator->() const { return decl; } 909 D *decl; 910 }; 911 912 template <class D2, template <class D> class TD, class D1> 913 TD<D2> 914 DynCast(TD<D1> source) 915 { 916 return TD<D2> (dyn_cast<D2>(source.decl)); 917 } 918 919 template <class D = Decl> class DeclFromParser; 920 template <class D = Decl> class DeclFromUser; 921 922 template <class D> class DeclFromParser : public TaggedASTDecl<D> { 923 public: 924 DeclFromParser() : TaggedASTDecl<D>() { } 925 DeclFromParser(D *_decl) : TaggedASTDecl<D>(_decl) { } 926 927 DeclFromUser<D> GetOrigin(ClangASTImporter *importer); 928 }; 929 930 template <class D> class DeclFromUser : public TaggedASTDecl<D> { 931 public: 932 DeclFromUser() : TaggedASTDecl<D>() { } 933 DeclFromUser(D *_decl) : TaggedASTDecl<D>(_decl) { } 934 935 DeclFromParser<D> Import(ClangASTImporter *importer, ASTContext &dest_ctx); 936 }; 937 938 template <class D> 939 DeclFromUser<D> 940 DeclFromParser<D>::GetOrigin(ClangASTImporter *importer) 941 { 942 DeclFromUser <> origin_decl; 943 importer->ResolveDeclOrigin(this->decl, &origin_decl.decl, NULL); 944 if (origin_decl.IsInvalid()) 945 return DeclFromUser<D>(); 946 return DeclFromUser<D>(dyn_cast<D>(origin_decl.decl)); 947 } 948 949 template <class D> 950 DeclFromParser<D> 951 DeclFromUser<D>::Import(ClangASTImporter *importer, ASTContext &dest_ctx) 952 { 953 DeclFromParser <> parser_generic_decl(importer->CopyDecl(&dest_ctx, &this->decl->getASTContext(), this->decl)); 954 if (parser_generic_decl.IsInvalid()) 955 return DeclFromParser<D>(); 956 return DeclFromParser<D>(dyn_cast<D>(parser_generic_decl.decl)); 957 } 958 959 static bool 960 FindObjCMethodDeclsWithOrigin (unsigned int current_id, 961 NameSearchContext &context, 962 ObjCInterfaceDecl *original_interface_decl, 963 clang::ASTContext *ast_context, 964 ClangASTImporter *ast_importer, 965 const char *log_info) 966 { 967 const DeclarationName &decl_name(context.m_decl_name); 968 clang::ASTContext *original_ctx = &original_interface_decl->getASTContext(); 969 970 Selector original_selector; 971 972 if (decl_name.isObjCZeroArgSelector()) 973 { 974 IdentifierInfo *ident = &original_ctx->Idents.get(decl_name.getAsString()); 975 original_selector = original_ctx->Selectors.getSelector(0, &ident); 976 } 977 else if (decl_name.isObjCOneArgSelector()) 978 { 979 const std::string &decl_name_string = decl_name.getAsString(); 980 std::string decl_name_string_without_colon(decl_name_string.c_str(), decl_name_string.length() - 1); 981 IdentifierInfo *ident = &original_ctx->Idents.get(decl_name_string_without_colon.c_str()); 982 original_selector = original_ctx->Selectors.getSelector(1, &ident); 983 } 984 else 985 { 986 SmallVector<IdentifierInfo *, 4> idents; 987 988 clang::Selector sel = decl_name.getObjCSelector(); 989 990 unsigned num_args = sel.getNumArgs(); 991 992 for (unsigned i = 0; 993 i != num_args; 994 ++i) 995 { 996 idents.push_back(&original_ctx->Idents.get(sel.getNameForSlot(i))); 997 } 998 999 original_selector = original_ctx->Selectors.getSelector(num_args, idents.data()); 1000 } 1001 1002 DeclarationName original_decl_name(original_selector); 1003 1004 llvm::SmallVector<NamedDecl *, 1> methods; 1005 1006 ClangASTContext::GetCompleteDecl(original_ctx, original_interface_decl); 1007 1008 if (ObjCMethodDecl *instance_method_decl = original_interface_decl->lookupInstanceMethod(original_selector)) 1009 { 1010 methods.push_back(instance_method_decl); 1011 } 1012 else if (ObjCMethodDecl *class_method_decl = original_interface_decl->lookupClassMethod(original_selector)) 1013 { 1014 methods.push_back(class_method_decl); 1015 } 1016 1017 if (methods.empty()) 1018 { 1019 return false; 1020 } 1021 1022 for (NamedDecl *named_decl : methods) 1023 { 1024 if (!named_decl) 1025 continue; 1026 1027 ObjCMethodDecl *result_method = dyn_cast<ObjCMethodDecl>(named_decl); 1028 1029 if (!result_method) 1030 continue; 1031 1032 Decl *copied_decl = ast_importer->CopyDecl(ast_context, &result_method->getASTContext(), result_method); 1033 1034 if (!copied_decl) 1035 continue; 1036 1037 ObjCMethodDecl *copied_method_decl = dyn_cast<ObjCMethodDecl>(copied_decl); 1038 1039 if (!copied_method_decl) 1040 continue; 1041 1042 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 1043 1044 if (log) 1045 { 1046 ASTDumper dumper((Decl*)copied_method_decl); 1047 log->Printf(" CAS::FOMD[%d] found (%s) %s", current_id, log_info, dumper.GetCString()); 1048 } 1049 1050 context.AddNamedDecl(copied_method_decl); 1051 } 1052 1053 return true; 1054 } 1055 1056 void 1057 ClangASTSource::FindObjCMethodDecls (NameSearchContext &context) 1058 { 1059 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 1060 1061 static unsigned int invocation_id = 0; 1062 unsigned int current_id = invocation_id++; 1063 1064 const DeclarationName &decl_name(context.m_decl_name); 1065 const DeclContext *decl_ctx(context.m_decl_context); 1066 1067 const ObjCInterfaceDecl *interface_decl = dyn_cast<ObjCInterfaceDecl>(decl_ctx); 1068 1069 if (!interface_decl) 1070 return; 1071 1072 do 1073 { 1074 Decl *original_decl = NULL; 1075 ASTContext *original_ctx = NULL; 1076 1077 m_ast_importer_sp->ResolveDeclOrigin(interface_decl, &original_decl, &original_ctx); 1078 1079 if (!original_decl) 1080 break; 1081 1082 ObjCInterfaceDecl *original_interface_decl = dyn_cast<ObjCInterfaceDecl>(original_decl); 1083 1084 if (FindObjCMethodDeclsWithOrigin(current_id, 1085 context, 1086 original_interface_decl, 1087 m_ast_context, 1088 m_ast_importer_sp.get(), 1089 "at origin")) 1090 return; // found it, no need to look any further 1091 } while (0); 1092 1093 StreamString ss; 1094 1095 if (decl_name.isObjCZeroArgSelector()) 1096 { 1097 ss.Printf("%s", decl_name.getAsString().c_str()); 1098 } 1099 else if (decl_name.isObjCOneArgSelector()) 1100 { 1101 ss.Printf("%s", decl_name.getAsString().c_str()); 1102 } 1103 else 1104 { 1105 clang::Selector sel = decl_name.getObjCSelector(); 1106 1107 for (unsigned i = 0, e = sel.getNumArgs(); 1108 i != e; 1109 ++i) 1110 { 1111 llvm::StringRef r = sel.getNameForSlot(i); 1112 ss.Printf("%s:", r.str().c_str()); 1113 } 1114 } 1115 ss.Flush(); 1116 1117 if (strstr(ss.GetData(), "$__lldb")) 1118 return; // we don't need any results 1119 1120 ConstString selector_name(ss.GetData()); 1121 1122 if (log) 1123 log->Printf("ClangASTSource::FindObjCMethodDecls[%d] on (ASTContext*)%p for selector [%s %s]", 1124 current_id, static_cast<void*>(m_ast_context), 1125 interface_decl->getNameAsString().c_str(), 1126 selector_name.AsCString()); 1127 SymbolContextList sc_list; 1128 1129 const bool include_symbols = false; 1130 const bool include_inlines = false; 1131 const bool append = false; 1132 1133 std::string interface_name = interface_decl->getNameAsString(); 1134 1135 do 1136 { 1137 StreamString ms; 1138 ms.Printf("-[%s %s]", interface_name.c_str(), selector_name.AsCString()); 1139 ms.Flush(); 1140 ConstString instance_method_name(ms.GetData()); 1141 1142 m_target->GetImages().FindFunctions(instance_method_name, lldb::eFunctionNameTypeFull, include_symbols, include_inlines, append, sc_list); 1143 1144 if (sc_list.GetSize()) 1145 break; 1146 1147 ms.Clear(); 1148 ms.Printf("+[%s %s]", interface_name.c_str(), selector_name.AsCString()); 1149 ms.Flush(); 1150 ConstString class_method_name(ms.GetData()); 1151 1152 m_target->GetImages().FindFunctions(class_method_name, lldb::eFunctionNameTypeFull, include_symbols, include_inlines, append, sc_list); 1153 1154 if (sc_list.GetSize()) 1155 break; 1156 1157 // Fall back and check for methods in categories. If we find methods this way, we need to check that they're actually in 1158 // categories on the desired class. 1159 1160 SymbolContextList candidate_sc_list; 1161 1162 m_target->GetImages().FindFunctions(selector_name, lldb::eFunctionNameTypeSelector, include_symbols, include_inlines, append, candidate_sc_list); 1163 1164 for (uint32_t ci = 0, ce = candidate_sc_list.GetSize(); 1165 ci != ce; 1166 ++ci) 1167 { 1168 SymbolContext candidate_sc; 1169 1170 if (!candidate_sc_list.GetContextAtIndex(ci, candidate_sc)) 1171 continue; 1172 1173 if (!candidate_sc.function) 1174 continue; 1175 1176 const char *candidate_name = candidate_sc.function->GetName().AsCString(); 1177 1178 const char *cursor = candidate_name; 1179 1180 if (*cursor != '+' && *cursor != '-') 1181 continue; 1182 1183 ++cursor; 1184 1185 if (*cursor != '[') 1186 continue; 1187 1188 ++cursor; 1189 1190 size_t interface_len = interface_name.length(); 1191 1192 if (strncmp(cursor, interface_name.c_str(), interface_len)) 1193 continue; 1194 1195 cursor += interface_len; 1196 1197 if (*cursor == ' ' || *cursor == '(') 1198 sc_list.Append(candidate_sc); 1199 } 1200 } 1201 while (0); 1202 1203 if (sc_list.GetSize()) 1204 { 1205 // We found a good function symbol. Use that. 1206 1207 for (uint32_t i = 0, e = sc_list.GetSize(); 1208 i != e; 1209 ++i) 1210 { 1211 SymbolContext sc; 1212 1213 if (!sc_list.GetContextAtIndex(i, sc)) 1214 continue; 1215 1216 if (!sc.function) 1217 continue; 1218 1219 CompilerDeclContext function_decl_ctx = sc.function->GetDeclContext(); 1220 if (!function_decl_ctx) 1221 continue; 1222 1223 ObjCMethodDecl *method_decl = ClangASTContext::DeclContextGetAsObjCMethodDecl(function_decl_ctx); 1224 1225 if (!method_decl) 1226 continue; 1227 1228 ObjCInterfaceDecl *found_interface_decl = method_decl->getClassInterface(); 1229 1230 if (!found_interface_decl) 1231 continue; 1232 1233 if (found_interface_decl->getName() == interface_decl->getName()) 1234 { 1235 Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, &method_decl->getASTContext(), method_decl); 1236 1237 if (!copied_decl) 1238 continue; 1239 1240 ObjCMethodDecl *copied_method_decl = dyn_cast<ObjCMethodDecl>(copied_decl); 1241 1242 if (!copied_method_decl) 1243 continue; 1244 1245 if (log) 1246 { 1247 ASTDumper dumper((Decl*)copied_method_decl); 1248 log->Printf(" CAS::FOMD[%d] found (in symbols) %s", current_id, dumper.GetCString()); 1249 } 1250 1251 context.AddNamedDecl(copied_method_decl); 1252 } 1253 } 1254 1255 return; 1256 } 1257 1258 // Try the debug information. 1259 1260 do 1261 { 1262 ObjCInterfaceDecl *complete_interface_decl = GetCompleteObjCInterface(const_cast<ObjCInterfaceDecl*>(interface_decl)); 1263 1264 if (!complete_interface_decl) 1265 break; 1266 1267 // We found the complete interface. The runtime never needs to be queried in this scenario. 1268 1269 DeclFromUser<const ObjCInterfaceDecl> complete_iface_decl(complete_interface_decl); 1270 1271 if (complete_interface_decl == interface_decl) 1272 break; // already checked this one 1273 1274 if (log) 1275 log->Printf("CAS::FOPD[%d] trying origin (ObjCInterfaceDecl*)%p/(ASTContext*)%p...", 1276 current_id, static_cast<void*>(complete_interface_decl), 1277 static_cast<void*>(&complete_iface_decl->getASTContext())); 1278 1279 FindObjCMethodDeclsWithOrigin(current_id, 1280 context, 1281 complete_interface_decl, 1282 m_ast_context, 1283 m_ast_importer_sp.get(), 1284 "in debug info"); 1285 1286 return; 1287 } 1288 while (0); 1289 1290 do 1291 { 1292 // Check the modules only if the debug information didn't have a complete interface. 1293 1294 if (ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor()) 1295 { 1296 ConstString interface_name(interface_decl->getNameAsString().c_str()); 1297 bool append = false; 1298 uint32_t max_matches = 1; 1299 std::vector <clang::NamedDecl *> decls; 1300 1301 if (!modules_decl_vendor->FindDecls(interface_name, 1302 append, 1303 max_matches, 1304 decls)) 1305 break; 1306 1307 ObjCInterfaceDecl *interface_decl_from_modules = dyn_cast<ObjCInterfaceDecl>(decls[0]); 1308 1309 if (!interface_decl_from_modules) 1310 break; 1311 1312 if (FindObjCMethodDeclsWithOrigin(current_id, 1313 context, 1314 interface_decl_from_modules, 1315 m_ast_context, 1316 m_ast_importer_sp.get(), 1317 "in modules")) 1318 return; 1319 } 1320 } 1321 while (0); 1322 1323 do 1324 { 1325 // Check the runtime only if the debug information didn't have a complete interface and the modules don't get us anywhere. 1326 1327 lldb::ProcessSP process(m_target->GetProcessSP()); 1328 1329 if (!process) 1330 break; 1331 1332 ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime()); 1333 1334 if (!language_runtime) 1335 break; 1336 1337 DeclVendor *decl_vendor = language_runtime->GetDeclVendor(); 1338 1339 if (!decl_vendor) 1340 break; 1341 1342 ConstString interface_name(interface_decl->getNameAsString().c_str()); 1343 bool append = false; 1344 uint32_t max_matches = 1; 1345 std::vector <clang::NamedDecl *> decls; 1346 1347 if (!decl_vendor->FindDecls(interface_name, 1348 append, 1349 max_matches, 1350 decls)) 1351 break; 1352 1353 ObjCInterfaceDecl *runtime_interface_decl = dyn_cast<ObjCInterfaceDecl>(decls[0]); 1354 1355 if (!runtime_interface_decl) 1356 break; 1357 1358 FindObjCMethodDeclsWithOrigin(current_id, 1359 context, 1360 runtime_interface_decl, 1361 m_ast_context, 1362 m_ast_importer_sp.get(), 1363 "in runtime"); 1364 } 1365 while(0); 1366 } 1367 1368 static bool 1369 FindObjCPropertyAndIvarDeclsWithOrigin (unsigned int current_id, 1370 NameSearchContext &context, 1371 clang::ASTContext &ast_context, 1372 ClangASTImporter *ast_importer, 1373 DeclFromUser<const ObjCInterfaceDecl> &origin_iface_decl) 1374 { 1375 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 1376 1377 if (origin_iface_decl.IsInvalid()) 1378 return false; 1379 1380 std::string name_str = context.m_decl_name.getAsString(); 1381 StringRef name(name_str.c_str()); 1382 IdentifierInfo &name_identifier(origin_iface_decl->getASTContext().Idents.get(name)); 1383 1384 DeclFromUser<ObjCPropertyDecl> origin_property_decl(origin_iface_decl->FindPropertyDeclaration(&name_identifier, ObjCPropertyQueryKind::OBJC_PR_query_instance)); 1385 1386 bool found = false; 1387 1388 if (origin_property_decl.IsValid()) 1389 { 1390 DeclFromParser<ObjCPropertyDecl> parser_property_decl(origin_property_decl.Import(ast_importer, ast_context)); 1391 if (parser_property_decl.IsValid()) 1392 { 1393 if (log) 1394 { 1395 ASTDumper dumper((Decl*)parser_property_decl.decl); 1396 log->Printf(" CAS::FOPD[%d] found %s", current_id, dumper.GetCString()); 1397 } 1398 1399 context.AddNamedDecl(parser_property_decl.decl); 1400 found = true; 1401 } 1402 } 1403 1404 DeclFromUser<ObjCIvarDecl> origin_ivar_decl(origin_iface_decl->getIvarDecl(&name_identifier)); 1405 1406 if (origin_ivar_decl.IsValid()) 1407 { 1408 DeclFromParser<ObjCIvarDecl> parser_ivar_decl(origin_ivar_decl.Import(ast_importer, ast_context)); 1409 if (parser_ivar_decl.IsValid()) 1410 { 1411 if (log) 1412 { 1413 ASTDumper dumper((Decl*)parser_ivar_decl.decl); 1414 log->Printf(" CAS::FOPD[%d] found %s", current_id, dumper.GetCString()); 1415 } 1416 1417 context.AddNamedDecl(parser_ivar_decl.decl); 1418 found = true; 1419 } 1420 } 1421 1422 return found; 1423 } 1424 1425 void 1426 ClangASTSource::FindObjCPropertyAndIvarDecls (NameSearchContext &context) 1427 { 1428 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 1429 1430 static unsigned int invocation_id = 0; 1431 unsigned int current_id = invocation_id++; 1432 1433 DeclFromParser<const ObjCInterfaceDecl> parser_iface_decl(cast<ObjCInterfaceDecl>(context.m_decl_context)); 1434 DeclFromUser<const ObjCInterfaceDecl> origin_iface_decl(parser_iface_decl.GetOrigin(m_ast_importer_sp.get())); 1435 1436 ConstString class_name(parser_iface_decl->getNameAsString().c_str()); 1437 1438 if (log) 1439 log->Printf("ClangASTSource::FindObjCPropertyAndIvarDecls[%d] on (ASTContext*)%p for '%s.%s'", 1440 current_id, static_cast<void*>(m_ast_context), 1441 parser_iface_decl->getNameAsString().c_str(), 1442 context.m_decl_name.getAsString().c_str()); 1443 1444 if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id, 1445 context, 1446 *m_ast_context, 1447 m_ast_importer_sp.get(), 1448 origin_iface_decl)) 1449 return; 1450 1451 if (log) 1452 log->Printf("CAS::FOPD[%d] couldn't find the property on origin (ObjCInterfaceDecl*)%p/(ASTContext*)%p, searching elsewhere...", 1453 current_id, static_cast<const void*>(origin_iface_decl.decl), 1454 static_cast<void*>(&origin_iface_decl->getASTContext())); 1455 1456 SymbolContext null_sc; 1457 TypeList type_list; 1458 1459 do 1460 { 1461 ObjCInterfaceDecl *complete_interface_decl = GetCompleteObjCInterface(const_cast<ObjCInterfaceDecl*>(parser_iface_decl.decl)); 1462 1463 if (!complete_interface_decl) 1464 break; 1465 1466 // We found the complete interface. The runtime never needs to be queried in this scenario. 1467 1468 DeclFromUser<const ObjCInterfaceDecl> complete_iface_decl(complete_interface_decl); 1469 1470 if (complete_iface_decl.decl == origin_iface_decl.decl) 1471 break; // already checked this one 1472 1473 if (log) 1474 log->Printf("CAS::FOPD[%d] trying origin (ObjCInterfaceDecl*)%p/(ASTContext*)%p...", 1475 current_id, 1476 static_cast<const void*>(complete_iface_decl.decl), 1477 static_cast<void*>(&complete_iface_decl->getASTContext())); 1478 1479 FindObjCPropertyAndIvarDeclsWithOrigin(current_id, 1480 context, 1481 *m_ast_context, 1482 m_ast_importer_sp.get(), 1483 complete_iface_decl); 1484 1485 return; 1486 } 1487 while(0); 1488 1489 do 1490 { 1491 // Check the modules only if the debug information didn't have a complete interface. 1492 1493 ClangModulesDeclVendor *modules_decl_vendor = m_target->GetClangModulesDeclVendor(); 1494 1495 if (!modules_decl_vendor) 1496 break; 1497 1498 bool append = false; 1499 uint32_t max_matches = 1; 1500 std::vector <clang::NamedDecl *> decls; 1501 1502 if (!modules_decl_vendor->FindDecls(class_name, 1503 append, 1504 max_matches, 1505 decls)) 1506 break; 1507 1508 DeclFromUser<const ObjCInterfaceDecl> interface_decl_from_modules(dyn_cast<ObjCInterfaceDecl>(decls[0])); 1509 1510 if (!interface_decl_from_modules.IsValid()) 1511 break; 1512 1513 if (log) 1514 log->Printf("CAS::FOPD[%d] trying module (ObjCInterfaceDecl*)%p/(ASTContext*)%p...", 1515 current_id, 1516 static_cast<const void*>(interface_decl_from_modules.decl), 1517 static_cast<void*>(&interface_decl_from_modules->getASTContext())); 1518 1519 if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id, 1520 context, 1521 *m_ast_context, 1522 m_ast_importer_sp.get(), 1523 interface_decl_from_modules)) 1524 return; 1525 } 1526 while(0); 1527 1528 do 1529 { 1530 // Check the runtime only if the debug information didn't have a complete interface 1531 // and nothing was in the modules. 1532 1533 lldb::ProcessSP process(m_target->GetProcessSP()); 1534 1535 if (!process) 1536 return; 1537 1538 ObjCLanguageRuntime *language_runtime(process->GetObjCLanguageRuntime()); 1539 1540 if (!language_runtime) 1541 return; 1542 1543 DeclVendor *decl_vendor = language_runtime->GetDeclVendor(); 1544 1545 if (!decl_vendor) 1546 break; 1547 1548 bool append = false; 1549 uint32_t max_matches = 1; 1550 std::vector <clang::NamedDecl *> decls; 1551 1552 if (!decl_vendor->FindDecls(class_name, 1553 append, 1554 max_matches, 1555 decls)) 1556 break; 1557 1558 DeclFromUser<const ObjCInterfaceDecl> interface_decl_from_runtime(dyn_cast<ObjCInterfaceDecl>(decls[0])); 1559 1560 if (!interface_decl_from_runtime.IsValid()) 1561 break; 1562 1563 if (log) 1564 log->Printf("CAS::FOPD[%d] trying runtime (ObjCInterfaceDecl*)%p/(ASTContext*)%p...", 1565 current_id, 1566 static_cast<const void*>(interface_decl_from_runtime.decl), 1567 static_cast<void*>(&interface_decl_from_runtime->getASTContext())); 1568 1569 if (FindObjCPropertyAndIvarDeclsWithOrigin(current_id, 1570 context, 1571 *m_ast_context, 1572 m_ast_importer_sp.get(), 1573 interface_decl_from_runtime)) 1574 return; 1575 } 1576 while(0); 1577 } 1578 1579 typedef llvm::DenseMap<const FieldDecl *, uint64_t> FieldOffsetMap; 1580 typedef llvm::DenseMap<const CXXRecordDecl *, CharUnits> BaseOffsetMap; 1581 1582 template <class D, class O> 1583 static bool 1584 ImportOffsetMap(llvm::DenseMap<const D *, O> &destination_map, llvm::DenseMap<const D *, O> &source_map, 1585 ClangASTImporter *importer, ASTContext &dest_ctx) 1586 { 1587 // When importing fields into a new record, clang has a hard requirement that 1588 // fields be imported in field offset order. Since they are stored in a DenseMap 1589 // with a pointer as the key type, this means we cannot simply iterate over the 1590 // map, as the order will be non-deterministic. Instead we have to sort by the offset 1591 // and then insert in sorted order. 1592 typedef llvm::DenseMap<const D *, O> MapType; 1593 typedef typename MapType::value_type PairType; 1594 std::vector<PairType> sorted_items; 1595 sorted_items.reserve(source_map.size()); 1596 sorted_items.assign(source_map.begin(), source_map.end()); 1597 std::sort(sorted_items.begin(), sorted_items.end(), 1598 [](const PairType &lhs, const PairType &rhs) 1599 { 1600 return lhs.second < rhs.second; 1601 }); 1602 1603 for (const auto &item : sorted_items) 1604 { 1605 DeclFromUser<D> user_decl(const_cast<D *>(item.first)); 1606 DeclFromParser <D> parser_decl(user_decl.Import(importer, dest_ctx)); 1607 if (parser_decl.IsInvalid()) 1608 return false; 1609 destination_map.insert(std::pair<const D *, O>(parser_decl.decl, item.second)); 1610 } 1611 1612 return true; 1613 } 1614 1615 template <bool IsVirtual> 1616 bool 1617 ExtractBaseOffsets(const ASTRecordLayout &record_layout, DeclFromUser<const CXXRecordDecl> &record, 1618 BaseOffsetMap &base_offsets) 1619 { 1620 for (CXXRecordDecl::base_class_const_iterator bi = (IsVirtual ? record->vbases_begin() : record->bases_begin()), 1621 be = (IsVirtual ? record->vbases_end() : record->bases_end()); 1622 bi != be; ++bi) 1623 { 1624 if (!IsVirtual && bi->isVirtual()) 1625 continue; 1626 1627 const clang::Type *origin_base_type = bi->getType().getTypePtr(); 1628 const clang::RecordType *origin_base_record_type = origin_base_type->getAs<RecordType>(); 1629 1630 if (!origin_base_record_type) 1631 return false; 1632 1633 DeclFromUser <RecordDecl> origin_base_record(origin_base_record_type->getDecl()); 1634 1635 if (origin_base_record.IsInvalid()) 1636 return false; 1637 1638 DeclFromUser <CXXRecordDecl> origin_base_cxx_record(DynCast<CXXRecordDecl>(origin_base_record)); 1639 1640 if (origin_base_cxx_record.IsInvalid()) 1641 return false; 1642 1643 CharUnits base_offset; 1644 1645 if (IsVirtual) 1646 base_offset = record_layout.getVBaseClassOffset(origin_base_cxx_record.decl); 1647 else 1648 base_offset = record_layout.getBaseClassOffset(origin_base_cxx_record.decl); 1649 1650 base_offsets.insert(std::pair<const CXXRecordDecl *, CharUnits>(origin_base_cxx_record.decl, base_offset)); 1651 } 1652 1653 return true; 1654 } 1655 1656 bool 1657 ClangASTSource::layoutRecordType(const RecordDecl *record, uint64_t &size, uint64_t &alignment, 1658 FieldOffsetMap &field_offsets, BaseOffsetMap &base_offsets, 1659 BaseOffsetMap &virtual_base_offsets) 1660 { 1661 ClangASTMetrics::RegisterRecordLayout(); 1662 1663 static unsigned int invocation_id = 0; 1664 unsigned int current_id = invocation_id++; 1665 1666 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 1667 1668 if (log) 1669 log->Printf("LayoutRecordType[%u] on (ASTContext*)%p for (RecordDecl*)%p [name = '%s']", 1670 current_id, static_cast<void*>(m_ast_context), 1671 static_cast<const void*>(record), 1672 record->getNameAsString().c_str()); 1673 1674 DeclFromParser <const RecordDecl> parser_record(record); 1675 DeclFromUser <const RecordDecl> origin_record(parser_record.GetOrigin(m_ast_importer_sp.get())); 1676 1677 if (origin_record.IsInvalid()) 1678 return false; 1679 1680 FieldOffsetMap origin_field_offsets; 1681 BaseOffsetMap origin_base_offsets; 1682 BaseOffsetMap origin_virtual_base_offsets; 1683 1684 ClangASTContext::GetCompleteDecl(&origin_record->getASTContext(), const_cast<RecordDecl*>(origin_record.decl)); 1685 1686 clang::RecordDecl* definition = origin_record.decl->getDefinition(); 1687 if (!definition || !definition->isCompleteDefinition()) 1688 return false; 1689 1690 const ASTRecordLayout &record_layout(origin_record->getASTContext().getASTRecordLayout(origin_record.decl)); 1691 1692 int field_idx = 0, field_count = record_layout.getFieldCount(); 1693 1694 for (RecordDecl::field_iterator fi = origin_record->field_begin(), fe = origin_record->field_end(); fi != fe; ++fi) 1695 { 1696 if (field_idx >= field_count) 1697 return false; // Layout didn't go well. Bail out. 1698 1699 uint64_t field_offset = record_layout.getFieldOffset(field_idx); 1700 1701 origin_field_offsets.insert(std::pair<const FieldDecl *, uint64_t>(*fi, field_offset)); 1702 1703 field_idx++; 1704 } 1705 1706 ASTContext &parser_ast_context(record->getASTContext()); 1707 1708 DeclFromUser <const CXXRecordDecl> origin_cxx_record(DynCast<const CXXRecordDecl>(origin_record)); 1709 1710 if (origin_cxx_record.IsValid()) 1711 { 1712 if (!ExtractBaseOffsets<false>(record_layout, origin_cxx_record, origin_base_offsets) || 1713 !ExtractBaseOffsets<true>(record_layout, origin_cxx_record, origin_virtual_base_offsets)) 1714 return false; 1715 } 1716 1717 if (!ImportOffsetMap(field_offsets, origin_field_offsets, m_ast_importer_sp.get(), parser_ast_context) || 1718 !ImportOffsetMap(base_offsets, origin_base_offsets, m_ast_importer_sp.get(), parser_ast_context) || 1719 !ImportOffsetMap(virtual_base_offsets, origin_virtual_base_offsets, m_ast_importer_sp.get(), parser_ast_context)) 1720 return false; 1721 1722 size = record_layout.getSize().getQuantity() * m_ast_context->getCharWidth(); 1723 alignment = record_layout.getAlignment().getQuantity() * m_ast_context->getCharWidth(); 1724 1725 if (log) 1726 { 1727 log->Printf("LRT[%u] returned:", current_id); 1728 log->Printf("LRT[%u] Original = (RecordDecl*)%p", current_id, 1729 static_cast<const void*>(origin_record.decl)); 1730 log->Printf("LRT[%u] Size = %" PRId64, current_id, size); 1731 log->Printf("LRT[%u] Alignment = %" PRId64, current_id, alignment); 1732 log->Printf("LRT[%u] Fields:", current_id); 1733 for (RecordDecl::field_iterator fi = record->field_begin(), fe = record->field_end(); 1734 fi != fe; 1735 ++fi) 1736 { 1737 log->Printf("LRT[%u] (FieldDecl*)%p, Name = '%s', Offset = %" PRId64 " bits", current_id, 1738 static_cast<void *>(*fi), fi->getNameAsString().c_str(), field_offsets[*fi]); 1739 } 1740 DeclFromParser <const CXXRecordDecl> parser_cxx_record = DynCast<const CXXRecordDecl>(parser_record); 1741 if (parser_cxx_record.IsValid()) 1742 { 1743 log->Printf("LRT[%u] Bases:", current_id); 1744 for (CXXRecordDecl::base_class_const_iterator bi = parser_cxx_record->bases_begin(), be = parser_cxx_record->bases_end(); 1745 bi != be; 1746 ++bi) 1747 { 1748 bool is_virtual = bi->isVirtual(); 1749 1750 QualType base_type = bi->getType(); 1751 const RecordType *base_record_type = base_type->getAs<RecordType>(); 1752 DeclFromParser <RecordDecl> base_record(base_record_type->getDecl()); 1753 DeclFromParser <CXXRecordDecl> base_cxx_record = DynCast<CXXRecordDecl>(base_record); 1754 1755 log->Printf("LRT[%u] %s(CXXRecordDecl*)%p, Name = '%s', Offset = %" PRId64 " chars", current_id, 1756 (is_virtual ? "Virtual " : ""), static_cast<void *>(base_cxx_record.decl), 1757 base_cxx_record.decl->getNameAsString().c_str(), 1758 (is_virtual ? virtual_base_offsets[base_cxx_record.decl].getQuantity() 1759 : base_offsets[base_cxx_record.decl].getQuantity())); 1760 } 1761 } 1762 else 1763 { 1764 log->Printf("LRD[%u] Not a CXXRecord, so no bases", current_id); 1765 } 1766 } 1767 1768 return true; 1769 } 1770 1771 void 1772 ClangASTSource::CompleteNamespaceMap (ClangASTImporter::NamespaceMapSP &namespace_map, 1773 const ConstString &name, 1774 ClangASTImporter::NamespaceMapSP &parent_map) const 1775 { 1776 static unsigned int invocation_id = 0; 1777 unsigned int current_id = invocation_id++; 1778 1779 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 1780 1781 if (log) 1782 { 1783 if (parent_map && parent_map->size()) 1784 log->Printf("CompleteNamespaceMap[%u] on (ASTContext*)%p Searching for namespace %s in namespace %s", 1785 current_id, static_cast<void*>(m_ast_context), 1786 name.GetCString(), 1787 parent_map->begin()->second.GetName().AsCString()); 1788 else 1789 log->Printf("CompleteNamespaceMap[%u] on (ASTContext*)%p Searching for namespace %s", 1790 current_id, static_cast<void*>(m_ast_context), 1791 name.GetCString()); 1792 } 1793 1794 if (parent_map) 1795 { 1796 for (ClangASTImporter::NamespaceMap::iterator i = parent_map->begin(), e = parent_map->end(); 1797 i != e; 1798 ++i) 1799 { 1800 CompilerDeclContext found_namespace_decl; 1801 1802 lldb::ModuleSP module_sp = i->first; 1803 CompilerDeclContext module_parent_namespace_decl = i->second; 1804 1805 SymbolVendor *symbol_vendor = module_sp->GetSymbolVendor(); 1806 1807 if (!symbol_vendor) 1808 continue; 1809 1810 SymbolContext null_sc; 1811 1812 found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &module_parent_namespace_decl); 1813 1814 if (!found_namespace_decl) 1815 continue; 1816 1817 namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(module_sp, found_namespace_decl)); 1818 1819 if (log) 1820 log->Printf(" CMN[%u] Found namespace %s in module %s", 1821 current_id, 1822 name.GetCString(), 1823 module_sp->GetFileSpec().GetFilename().GetCString()); 1824 } 1825 } 1826 else 1827 { 1828 const ModuleList &target_images = m_target->GetImages(); 1829 Mutex::Locker modules_locker(target_images.GetMutex()); 1830 1831 CompilerDeclContext null_namespace_decl; 1832 1833 for (size_t i = 0, e = target_images.GetSize(); i < e; ++i) 1834 { 1835 lldb::ModuleSP image = target_images.GetModuleAtIndexUnlocked(i); 1836 1837 if (!image) 1838 continue; 1839 1840 CompilerDeclContext found_namespace_decl; 1841 1842 SymbolVendor *symbol_vendor = image->GetSymbolVendor(); 1843 1844 if (!symbol_vendor) 1845 continue; 1846 1847 SymbolContext null_sc; 1848 1849 found_namespace_decl = symbol_vendor->FindNamespace(null_sc, name, &null_namespace_decl); 1850 1851 if (!found_namespace_decl) 1852 continue; 1853 1854 namespace_map->push_back(std::pair<lldb::ModuleSP, CompilerDeclContext>(image, found_namespace_decl)); 1855 1856 if (log) 1857 log->Printf(" CMN[%u] Found namespace %s in module %s", 1858 current_id, 1859 name.GetCString(), 1860 image->GetFileSpec().GetFilename().GetCString()); 1861 } 1862 } 1863 } 1864 1865 NamespaceDecl * 1866 ClangASTSource::AddNamespace (NameSearchContext &context, ClangASTImporter::NamespaceMapSP &namespace_decls) 1867 { 1868 if (!namespace_decls) 1869 return nullptr; 1870 1871 const CompilerDeclContext &namespace_decl = namespace_decls->begin()->second; 1872 1873 clang::ASTContext *src_ast = ClangASTContext::DeclContextGetClangASTContext(namespace_decl); 1874 if (!src_ast) 1875 return nullptr; 1876 clang::NamespaceDecl *src_namespace_decl = ClangASTContext::DeclContextGetAsNamespaceDecl(namespace_decl); 1877 1878 if (!src_namespace_decl) 1879 return nullptr; 1880 1881 Decl *copied_decl = m_ast_importer_sp->CopyDecl(m_ast_context, src_ast, src_namespace_decl); 1882 1883 if (!copied_decl) 1884 return nullptr; 1885 1886 NamespaceDecl *copied_namespace_decl = dyn_cast<NamespaceDecl>(copied_decl); 1887 1888 if (!copied_namespace_decl) 1889 return nullptr; 1890 1891 context.m_decls.push_back(copied_namespace_decl); 1892 1893 m_ast_importer_sp->RegisterNamespaceMap(copied_namespace_decl, namespace_decls); 1894 1895 return dyn_cast<NamespaceDecl>(copied_decl); 1896 } 1897 1898 CompilerType 1899 ClangASTSource::GuardedCopyType (const CompilerType &src_type) 1900 { 1901 ClangASTContext *src_ast = llvm::dyn_cast_or_null<ClangASTContext>(src_type.GetTypeSystem()); 1902 if (src_ast == nullptr) 1903 return CompilerType(); 1904 1905 ClangASTMetrics::RegisterLLDBImport(); 1906 1907 SetImportInProgress(true); 1908 1909 QualType copied_qual_type = 1910 m_ast_importer_sp->CopyType(m_ast_context, src_ast->getASTContext(), ClangUtil::GetQualType(src_type)); 1911 1912 SetImportInProgress(false); 1913 1914 if (copied_qual_type.getAsOpaquePtr() && copied_qual_type->getCanonicalTypeInternal().isNull()) 1915 // this shouldn't happen, but we're hardening because the AST importer seems to be generating bad types 1916 // on occasion. 1917 return CompilerType(); 1918 1919 return CompilerType(m_ast_context, copied_qual_type); 1920 } 1921 1922 clang::NamedDecl * 1923 NameSearchContext::AddVarDecl(const CompilerType &type) 1924 { 1925 assert (type && "Type for variable must be valid!"); 1926 1927 if (!type.IsValid()) 1928 return NULL; 1929 1930 ClangASTContext* lldb_ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); 1931 if (!lldb_ast) 1932 return NULL; 1933 1934 IdentifierInfo *ii = m_decl_name.getAsIdentifierInfo(); 1935 1936 clang::ASTContext *ast = lldb_ast->getASTContext(); 1937 1938 clang::NamedDecl *Decl = VarDecl::Create(*ast, const_cast<DeclContext *>(m_decl_context), SourceLocation(), 1939 SourceLocation(), ii, ClangUtil::GetQualType(type), 0, SC_Static); 1940 m_decls.push_back(Decl); 1941 1942 return Decl; 1943 } 1944 1945 clang::NamedDecl * 1946 NameSearchContext::AddFunDecl (const CompilerType &type, bool extern_c) 1947 { 1948 assert (type && "Type for variable must be valid!"); 1949 1950 if (!type.IsValid()) 1951 return NULL; 1952 1953 if (m_function_types.count(type)) 1954 return NULL; 1955 1956 ClangASTContext* lldb_ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem()); 1957 if (!lldb_ast) 1958 return NULL; 1959 1960 m_function_types.insert(type); 1961 1962 QualType qual_type(ClangUtil::GetQualType(type)); 1963 1964 clang::ASTContext *ast = lldb_ast->getASTContext(); 1965 1966 const bool isInlineSpecified = false; 1967 const bool hasWrittenPrototype = true; 1968 const bool isConstexprSpecified = false; 1969 1970 clang::DeclContext *context = const_cast<DeclContext*>(m_decl_context); 1971 1972 if (extern_c) { 1973 context = LinkageSpecDecl::Create(*ast, 1974 context, 1975 SourceLocation(), 1976 SourceLocation(), 1977 clang::LinkageSpecDecl::LanguageIDs::lang_c, 1978 false); 1979 } 1980 1981 // Pass the identifier info for functions the decl_name is needed for operators 1982 clang::DeclarationName decl_name = m_decl_name.getNameKind() == DeclarationName::Identifier ? m_decl_name.getAsIdentifierInfo() : m_decl_name; 1983 1984 clang::FunctionDecl *func_decl = FunctionDecl::Create (*ast, 1985 context, 1986 SourceLocation(), 1987 SourceLocation(), 1988 decl_name, 1989 qual_type, 1990 NULL, 1991 SC_Extern, 1992 isInlineSpecified, 1993 hasWrittenPrototype, 1994 isConstexprSpecified); 1995 1996 // We have to do more than just synthesize the FunctionDecl. We have to 1997 // synthesize ParmVarDecls for all of the FunctionDecl's arguments. To do 1998 // this, we raid the function's FunctionProtoType for types. 1999 2000 const FunctionProtoType *func_proto_type = qual_type.getTypePtr()->getAs<FunctionProtoType>(); 2001 2002 if (func_proto_type) 2003 { 2004 unsigned NumArgs = func_proto_type->getNumParams(); 2005 unsigned ArgIndex; 2006 2007 SmallVector<ParmVarDecl *, 5> parm_var_decls; 2008 2009 for (ArgIndex = 0; ArgIndex < NumArgs; ++ArgIndex) 2010 { 2011 QualType arg_qual_type (func_proto_type->getParamType(ArgIndex)); 2012 2013 parm_var_decls.push_back(ParmVarDecl::Create (*ast, 2014 const_cast<DeclContext*>(context), 2015 SourceLocation(), 2016 SourceLocation(), 2017 NULL, 2018 arg_qual_type, 2019 NULL, 2020 SC_Static, 2021 NULL)); 2022 } 2023 2024 func_decl->setParams(ArrayRef<ParmVarDecl*>(parm_var_decls)); 2025 } 2026 else 2027 { 2028 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS)); 2029 2030 if (log) 2031 log->Printf("Function type wasn't a FunctionProtoType"); 2032 } 2033 2034 m_decls.push_back(func_decl); 2035 2036 return func_decl; 2037 } 2038 2039 clang::NamedDecl * 2040 NameSearchContext::AddGenericFunDecl() 2041 { 2042 FunctionProtoType::ExtProtoInfo proto_info; 2043 2044 proto_info.Variadic = true; 2045 2046 QualType generic_function_type(m_ast_source.m_ast_context->getFunctionType (m_ast_source.m_ast_context->UnknownAnyTy, // result 2047 ArrayRef<QualType>(), // argument types 2048 proto_info)); 2049 2050 return AddFunDecl(CompilerType (m_ast_source.m_ast_context, generic_function_type), true); 2051 } 2052 2053 clang::NamedDecl * 2054 NameSearchContext::AddTypeDecl(const CompilerType &clang_type) 2055 { 2056 if (ClangUtil::IsClangType(clang_type)) 2057 { 2058 QualType qual_type = ClangUtil::GetQualType(clang_type); 2059 2060 if (const TypedefType *typedef_type = llvm::dyn_cast<TypedefType>(qual_type)) 2061 { 2062 TypedefNameDecl *typedef_name_decl = typedef_type->getDecl(); 2063 2064 m_decls.push_back(typedef_name_decl); 2065 2066 return (NamedDecl*)typedef_name_decl; 2067 } 2068 else if (const TagType *tag_type = qual_type->getAs<TagType>()) 2069 { 2070 TagDecl *tag_decl = tag_type->getDecl(); 2071 2072 m_decls.push_back(tag_decl); 2073 2074 return tag_decl; 2075 } 2076 else if (const ObjCObjectType *objc_object_type = qual_type->getAs<ObjCObjectType>()) 2077 { 2078 ObjCInterfaceDecl *interface_decl = objc_object_type->getInterface(); 2079 2080 m_decls.push_back((NamedDecl*)interface_decl); 2081 2082 return (NamedDecl*)interface_decl; 2083 } 2084 } 2085 return NULL; 2086 } 2087 2088 void 2089 NameSearchContext::AddLookupResult (clang::DeclContextLookupResult result) 2090 { 2091 for (clang::NamedDecl *decl : result) 2092 m_decls.push_back (decl); 2093 } 2094 2095 void 2096 NameSearchContext::AddNamedDecl (clang::NamedDecl *decl) 2097 { 2098 m_decls.push_back (decl); 2099 } 2100