1 //===-- CPlusPlusLanguage.cpp ---------------------------------------------===// 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 #include "CPlusPlusLanguage.h" 10 11 #include <cctype> 12 #include <cstring> 13 14 #include <functional> 15 #include <memory> 16 #include <mutex> 17 #include <set> 18 19 #include "llvm/ADT/StringRef.h" 20 #include "llvm/Demangle/ItaniumDemangle.h" 21 22 #include "lldb/Core/Mangled.h" 23 #include "lldb/Core/Module.h" 24 #include "lldb/Core/PluginManager.h" 25 #include "lldb/Core/UniqueCStringMap.h" 26 #include "lldb/DataFormatters/CXXFunctionPointer.h" 27 #include "lldb/DataFormatters/DataVisualization.h" 28 #include "lldb/DataFormatters/FormattersHelpers.h" 29 #include "lldb/DataFormatters/VectorType.h" 30 #include "lldb/Symbol/SymbolFile.h" 31 #include "lldb/Utility/ConstString.h" 32 #include "lldb/Utility/Log.h" 33 #include "lldb/Utility/RegularExpression.h" 34 35 #include "BlockPointer.h" 36 #include "CPlusPlusNameParser.h" 37 #include "CxxStringTypes.h" 38 #include "LibCxx.h" 39 #include "LibCxxAtomic.h" 40 #include "LibCxxVariant.h" 41 #include "LibStdcpp.h" 42 #include "MSVCUndecoratedNameParser.h" 43 44 using namespace lldb; 45 using namespace lldb_private; 46 using namespace lldb_private::formatters; 47 48 LLDB_PLUGIN_DEFINE(CPlusPlusLanguage) 49 50 void CPlusPlusLanguage::Initialize() { 51 PluginManager::RegisterPlugin(GetPluginNameStatic(), "C++ Language", 52 CreateInstance); 53 } 54 55 void CPlusPlusLanguage::Terminate() { 56 PluginManager::UnregisterPlugin(CreateInstance); 57 } 58 59 lldb_private::ConstString CPlusPlusLanguage::GetPluginNameStatic() { 60 static ConstString g_name("cplusplus"); 61 return g_name; 62 } 63 64 bool CPlusPlusLanguage::SymbolNameFitsToLanguage(Mangled mangled) const { 65 const char *mangled_name = mangled.GetMangledName().GetCString(); 66 return mangled_name && CPlusPlusLanguage::IsCPPMangledName(mangled_name); 67 } 68 69 ConstString CPlusPlusLanguage::GetDemangledFunctionNameWithoutArguments( 70 Mangled mangled) const { 71 const char *mangled_name_cstr = mangled.GetMangledName().GetCString(); 72 ConstString demangled_name = mangled.GetDemangledName(); 73 if (demangled_name && mangled_name_cstr && mangled_name_cstr[0]) { 74 if (mangled_name_cstr[0] == '_' && mangled_name_cstr[1] == 'Z' && 75 (mangled_name_cstr[2] != 'T' && // avoid virtual table, VTT structure, 76 // typeinfo structure, and typeinfo 77 // mangled_name 78 mangled_name_cstr[2] != 'G' && // avoid guard variables 79 mangled_name_cstr[2] != 'Z')) // named local entities (if we 80 // eventually handle eSymbolTypeData, 81 // we will want this back) 82 { 83 CPlusPlusLanguage::MethodName cxx_method(demangled_name); 84 if (!cxx_method.GetBasename().empty()) { 85 std::string shortname; 86 if (!cxx_method.GetContext().empty()) 87 shortname = cxx_method.GetContext().str() + "::"; 88 shortname += cxx_method.GetBasename().str(); 89 return ConstString(shortname); 90 } 91 } 92 } 93 if (demangled_name) 94 return demangled_name; 95 return mangled.GetMangledName(); 96 } 97 98 // Static Functions 99 100 Language *CPlusPlusLanguage::CreateInstance(lldb::LanguageType language) { 101 // Use plugin for C++ but not for Objective-C++ (which has its own plugin). 102 if (Language::LanguageIsCPlusPlus(language) && 103 language != eLanguageTypeObjC_plus_plus) 104 return new CPlusPlusLanguage(); 105 return nullptr; 106 } 107 108 void CPlusPlusLanguage::MethodName::Clear() { 109 m_full.Clear(); 110 m_basename = llvm::StringRef(); 111 m_context = llvm::StringRef(); 112 m_arguments = llvm::StringRef(); 113 m_qualifiers = llvm::StringRef(); 114 m_parsed = false; 115 m_parse_error = false; 116 } 117 118 static bool ReverseFindMatchingChars(const llvm::StringRef &s, 119 const llvm::StringRef &left_right_chars, 120 size_t &left_pos, size_t &right_pos, 121 size_t pos = llvm::StringRef::npos) { 122 assert(left_right_chars.size() == 2); 123 left_pos = llvm::StringRef::npos; 124 const char left_char = left_right_chars[0]; 125 const char right_char = left_right_chars[1]; 126 pos = s.find_last_of(left_right_chars, pos); 127 if (pos == llvm::StringRef::npos || s[pos] == left_char) 128 return false; 129 right_pos = pos; 130 uint32_t depth = 1; 131 while (pos > 0 && depth > 0) { 132 pos = s.find_last_of(left_right_chars, pos); 133 if (pos == llvm::StringRef::npos) 134 return false; 135 if (s[pos] == left_char) { 136 if (--depth == 0) { 137 left_pos = pos; 138 return left_pos < right_pos; 139 } 140 } else if (s[pos] == right_char) { 141 ++depth; 142 } 143 } 144 return false; 145 } 146 147 static bool IsTrivialBasename(const llvm::StringRef &basename) { 148 // Check that the basename matches with the following regular expression 149 // "^~?([A-Za-z_][A-Za-z_0-9]*)$" We are using a hand written implementation 150 // because it is significantly more efficient then using the general purpose 151 // regular expression library. 152 size_t idx = 0; 153 if (basename.size() > 0 && basename[0] == '~') 154 idx = 1; 155 156 if (basename.size() <= idx) 157 return false; // Empty string or "~" 158 159 if (!std::isalpha(basename[idx]) && basename[idx] != '_') 160 return false; // First character (after removing the possible '~'') isn't in 161 // [A-Za-z_] 162 163 // Read all characters matching [A-Za-z_0-9] 164 ++idx; 165 while (idx < basename.size()) { 166 if (!std::isalnum(basename[idx]) && basename[idx] != '_') 167 break; 168 ++idx; 169 } 170 171 // We processed all characters. It is a vaild basename. 172 return idx == basename.size(); 173 } 174 175 bool CPlusPlusLanguage::MethodName::TrySimplifiedParse() { 176 // This method tries to parse simple method definitions which are presumably 177 // most comman in user programs. Definitions that can be parsed by this 178 // function don't have return types and templates in the name. 179 // A::B::C::fun(std::vector<T> &) const 180 size_t arg_start, arg_end; 181 llvm::StringRef full(m_full.GetCString()); 182 llvm::StringRef parens("()", 2); 183 if (ReverseFindMatchingChars(full, parens, arg_start, arg_end)) { 184 m_arguments = full.substr(arg_start, arg_end - arg_start + 1); 185 if (arg_end + 1 < full.size()) 186 m_qualifiers = full.substr(arg_end + 1).ltrim(); 187 188 if (arg_start == 0) 189 return false; 190 size_t basename_end = arg_start; 191 size_t context_start = 0; 192 size_t context_end = full.rfind(':', basename_end); 193 if (context_end == llvm::StringRef::npos) 194 m_basename = full.substr(0, basename_end); 195 else { 196 if (context_start < context_end) 197 m_context = full.substr(context_start, context_end - 1 - context_start); 198 const size_t basename_begin = context_end + 1; 199 m_basename = full.substr(basename_begin, basename_end - basename_begin); 200 } 201 202 if (IsTrivialBasename(m_basename)) { 203 return true; 204 } else { 205 // The C++ basename doesn't match our regular expressions so this can't 206 // be a valid C++ method, clear everything out and indicate an error 207 m_context = llvm::StringRef(); 208 m_basename = llvm::StringRef(); 209 m_arguments = llvm::StringRef(); 210 m_qualifiers = llvm::StringRef(); 211 return false; 212 } 213 } 214 return false; 215 } 216 217 void CPlusPlusLanguage::MethodName::Parse() { 218 if (!m_parsed && m_full) { 219 if (TrySimplifiedParse()) { 220 m_parse_error = false; 221 } else { 222 CPlusPlusNameParser parser(m_full.GetStringRef()); 223 if (auto function = parser.ParseAsFunctionDefinition()) { 224 m_basename = function.getValue().name.basename; 225 m_context = function.getValue().name.context; 226 m_arguments = function.getValue().arguments; 227 m_qualifiers = function.getValue().qualifiers; 228 m_parse_error = false; 229 } else { 230 m_parse_error = true; 231 } 232 } 233 m_parsed = true; 234 } 235 } 236 237 llvm::StringRef CPlusPlusLanguage::MethodName::GetBasename() { 238 if (!m_parsed) 239 Parse(); 240 return m_basename; 241 } 242 243 llvm::StringRef CPlusPlusLanguage::MethodName::GetContext() { 244 if (!m_parsed) 245 Parse(); 246 return m_context; 247 } 248 249 llvm::StringRef CPlusPlusLanguage::MethodName::GetArguments() { 250 if (!m_parsed) 251 Parse(); 252 return m_arguments; 253 } 254 255 llvm::StringRef CPlusPlusLanguage::MethodName::GetQualifiers() { 256 if (!m_parsed) 257 Parse(); 258 return m_qualifiers; 259 } 260 261 std::string CPlusPlusLanguage::MethodName::GetScopeQualifiedName() { 262 if (!m_parsed) 263 Parse(); 264 if (m_context.empty()) 265 return std::string(m_basename); 266 267 std::string res; 268 res += m_context; 269 res += "::"; 270 res += m_basename; 271 return res; 272 } 273 274 bool CPlusPlusLanguage::IsCPPMangledName(llvm::StringRef name) { 275 // FIXME!! we should really run through all the known C++ Language plugins 276 // and ask each one if this is a C++ mangled name 277 278 Mangled::ManglingScheme scheme = Mangled::GetManglingScheme(name); 279 280 if (scheme == Mangled::eManglingSchemeNone) 281 return false; 282 283 return true; 284 } 285 286 bool CPlusPlusLanguage::ExtractContextAndIdentifier( 287 const char *name, llvm::StringRef &context, llvm::StringRef &identifier) { 288 if (MSVCUndecoratedNameParser::IsMSVCUndecoratedName(name)) 289 return MSVCUndecoratedNameParser::ExtractContextAndIdentifier(name, context, 290 identifier); 291 292 CPlusPlusNameParser parser(name); 293 if (auto full_name = parser.ParseAsFullName()) { 294 identifier = full_name.getValue().basename; 295 context = full_name.getValue().context; 296 return true; 297 } 298 return false; 299 } 300 301 namespace { 302 class NodeAllocator { 303 llvm::BumpPtrAllocator Alloc; 304 305 public: 306 void reset() { Alloc.Reset(); } 307 308 template <typename T, typename... Args> T *makeNode(Args &&... args) { 309 return new (Alloc.Allocate(sizeof(T), alignof(T))) 310 T(std::forward<Args>(args)...); 311 } 312 313 void *allocateNodeArray(size_t sz) { 314 return Alloc.Allocate(sizeof(llvm::itanium_demangle::Node *) * sz, 315 alignof(llvm::itanium_demangle::Node *)); 316 } 317 }; 318 319 template <typename Derived> 320 class ManglingSubstitutor 321 : public llvm::itanium_demangle::AbstractManglingParser<Derived, 322 NodeAllocator> { 323 using Base = 324 llvm::itanium_demangle::AbstractManglingParser<Derived, NodeAllocator>; 325 326 public: 327 ManglingSubstitutor() : Base(nullptr, nullptr) {} 328 329 template<typename... Ts> 330 ConstString substitute(llvm::StringRef Mangled, Ts &&... Vals) { 331 this->getDerived().reset(Mangled, std::forward<Ts>(Vals)...); 332 return substituteImpl(Mangled); 333 } 334 335 336 protected: 337 void reset(llvm::StringRef Mangled) { 338 Base::reset(Mangled.begin(), Mangled.end()); 339 Written = Mangled.begin(); 340 Result.clear(); 341 Substituted = false; 342 } 343 344 ConstString substituteImpl(llvm::StringRef Mangled) { 345 Log *log = GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE); 346 if (this->parse() == nullptr) { 347 LLDB_LOG(log, "Failed to substitute mangling in {0}", Mangled); 348 return ConstString(); 349 } 350 if (!Substituted) 351 return ConstString(); 352 353 // Append any trailing unmodified input. 354 appendUnchangedInput(); 355 LLDB_LOG(log, "Substituted mangling {0} -> {1}", Mangled, Result); 356 return ConstString(Result); 357 } 358 359 void trySubstitute(llvm::StringRef From, llvm::StringRef To) { 360 if (!llvm::StringRef(currentParserPos(), this->numLeft()).startswith(From)) 361 return; 362 363 // We found a match. Append unmodified input up to this point. 364 appendUnchangedInput(); 365 366 // And then perform the replacement. 367 Result += To; 368 Written += From.size(); 369 Substituted = true; 370 } 371 372 private: 373 /// Input character until which we have constructed the respective output 374 /// already. 375 const char *Written; 376 377 llvm::SmallString<128> Result; 378 379 /// Whether we have performed any substitutions. 380 bool Substituted; 381 382 const char *currentParserPos() const { return this->First; } 383 384 void appendUnchangedInput() { 385 Result += 386 llvm::StringRef(Written, std::distance(Written, currentParserPos())); 387 Written = currentParserPos(); 388 } 389 390 }; 391 392 /// Given a mangled function `Mangled`, replace all the primitive function type 393 /// arguments of `Search` with type `Replace`. 394 class TypeSubstitutor : public ManglingSubstitutor<TypeSubstitutor> { 395 llvm::StringRef Search; 396 llvm::StringRef Replace; 397 398 public: 399 void reset(llvm::StringRef Mangled, llvm::StringRef Search, 400 llvm::StringRef Replace) { 401 ManglingSubstitutor::reset(Mangled); 402 this->Search = Search; 403 this->Replace = Replace; 404 } 405 406 llvm::itanium_demangle::Node *parseType() { 407 trySubstitute(Search, Replace); 408 return ManglingSubstitutor::parseType(); 409 } 410 }; 411 412 class CtorDtorSubstitutor : public ManglingSubstitutor<CtorDtorSubstitutor> { 413 public: 414 llvm::itanium_demangle::Node * 415 parseCtorDtorName(llvm::itanium_demangle::Node *&SoFar, NameState *State) { 416 trySubstitute("C1", "C2"); 417 trySubstitute("D1", "D2"); 418 return ManglingSubstitutor::parseCtorDtorName(SoFar, State); 419 } 420 }; 421 } // namespace 422 423 std::vector<ConstString> CPlusPlusLanguage::GenerateAlternateFunctionManglings( 424 const ConstString mangled_name) const { 425 std::vector<ConstString> alternates; 426 427 /// Get a basic set of alternative manglings for the given symbol `name`, by 428 /// making a few basic possible substitutions on basic types, storage duration 429 /// and `const`ness for the given symbol. The output parameter `alternates` 430 /// is filled with a best-guess, non-exhaustive set of different manglings 431 /// for the given name. 432 433 // Maybe we're looking for a const symbol but the debug info told us it was 434 // non-const... 435 if (!strncmp(mangled_name.GetCString(), "_ZN", 3) && 436 strncmp(mangled_name.GetCString(), "_ZNK", 4)) { 437 std::string fixed_scratch("_ZNK"); 438 fixed_scratch.append(mangled_name.GetCString() + 3); 439 alternates.push_back(ConstString(fixed_scratch)); 440 } 441 442 // Maybe we're looking for a static symbol but we thought it was global... 443 if (!strncmp(mangled_name.GetCString(), "_Z", 2) && 444 strncmp(mangled_name.GetCString(), "_ZL", 3)) { 445 std::string fixed_scratch("_ZL"); 446 fixed_scratch.append(mangled_name.GetCString() + 2); 447 alternates.push_back(ConstString(fixed_scratch)); 448 } 449 450 TypeSubstitutor TS; 451 // `char` is implementation defined as either `signed` or `unsigned`. As a 452 // result a char parameter has 3 possible manglings: 'c'-char, 'a'-signed 453 // char, 'h'-unsigned char. If we're looking for symbols with a signed char 454 // parameter, try finding matches which have the general case 'c'. 455 if (ConstString char_fixup = 456 TS.substitute(mangled_name.GetStringRef(), "a", "c")) 457 alternates.push_back(char_fixup); 458 459 // long long parameter mangling 'x', may actually just be a long 'l' argument 460 if (ConstString long_fixup = 461 TS.substitute(mangled_name.GetStringRef(), "x", "l")) 462 alternates.push_back(long_fixup); 463 464 // unsigned long long parameter mangling 'y', may actually just be unsigned 465 // long 'm' argument 466 if (ConstString ulong_fixup = 467 TS.substitute(mangled_name.GetStringRef(), "y", "m")) 468 alternates.push_back(ulong_fixup); 469 470 if (ConstString ctor_fixup = 471 CtorDtorSubstitutor().substitute(mangled_name.GetStringRef())) 472 alternates.push_back(ctor_fixup); 473 474 return alternates; 475 } 476 477 ConstString CPlusPlusLanguage::FindBestAlternateFunctionMangledName( 478 const Mangled mangled, const SymbolContext &sym_ctx) const { 479 ConstString demangled = mangled.GetDemangledName(); 480 if (!demangled) 481 return ConstString(); 482 483 CPlusPlusLanguage::MethodName cpp_name(demangled); 484 std::string scope_qualified_name = cpp_name.GetScopeQualifiedName(); 485 486 if (!scope_qualified_name.size()) 487 return ConstString(); 488 489 if (!sym_ctx.module_sp) 490 return ConstString(); 491 492 lldb_private::SymbolFile *sym_file = sym_ctx.module_sp->GetSymbolFile(); 493 if (!sym_file) 494 return ConstString(); 495 496 std::vector<ConstString> alternates; 497 sym_file->GetMangledNamesForFunction(scope_qualified_name, alternates); 498 499 std::vector<ConstString> param_and_qual_matches; 500 std::vector<ConstString> param_matches; 501 for (size_t i = 0; i < alternates.size(); i++) { 502 ConstString alternate_mangled_name = alternates[i]; 503 Mangled mangled(alternate_mangled_name); 504 ConstString demangled = mangled.GetDemangledName(); 505 506 CPlusPlusLanguage::MethodName alternate_cpp_name(demangled); 507 if (!cpp_name.IsValid()) 508 continue; 509 510 if (alternate_cpp_name.GetArguments() == cpp_name.GetArguments()) { 511 if (alternate_cpp_name.GetQualifiers() == cpp_name.GetQualifiers()) 512 param_and_qual_matches.push_back(alternate_mangled_name); 513 else 514 param_matches.push_back(alternate_mangled_name); 515 } 516 } 517 518 if (param_and_qual_matches.size()) 519 return param_and_qual_matches[0]; // It is assumed that there will be only 520 // one! 521 else if (param_matches.size()) 522 return param_matches[0]; // Return one of them as a best match 523 else 524 return ConstString(); 525 } 526 527 static void LoadLibCxxFormatters(lldb::TypeCategoryImplSP cpp_category_sp) { 528 if (!cpp_category_sp) 529 return; 530 531 TypeSummaryImpl::Flags stl_summary_flags; 532 stl_summary_flags.SetCascades(true) 533 .SetSkipPointers(false) 534 .SetSkipReferences(false) 535 .SetDontShowChildren(true) 536 .SetDontShowValue(true) 537 .SetShowMembersOneLiner(false) 538 .SetHideItemNames(false); 539 540 AddCXXSummary(cpp_category_sp, 541 lldb_private::formatters::LibcxxStringSummaryProviderASCII, 542 "std::string summary provider", 543 ConstString("^std::__[[:alnum:]]+::string$"), stl_summary_flags, 544 true); 545 AddCXXSummary(cpp_category_sp, 546 lldb_private::formatters::LibcxxStringSummaryProviderASCII, 547 "std::string summary provider", 548 ConstString("^std::__[[:alnum:]]+::basic_string<char, " 549 "std::__[[:alnum:]]+::char_traits<char>, " 550 "std::__[[:alnum:]]+::allocator<char> >$"), 551 stl_summary_flags, true); 552 AddCXXSummary(cpp_category_sp, 553 lldb_private::formatters::LibcxxStringSummaryProviderASCII, 554 "std::string summary provider", 555 ConstString("^std::__[[:alnum:]]+::basic_string<unsigned char, " 556 "std::__[[:alnum:]]+::char_traits<unsigned char>, " 557 "std::__[[:alnum:]]+::allocator<unsigned char> >$"), 558 stl_summary_flags, true); 559 560 AddCXXSummary(cpp_category_sp, 561 lldb_private::formatters::LibcxxStringSummaryProviderUTF16, 562 "std::u16string summary provider", 563 ConstString( 564 "^std::__[[:alnum:]]+::basic_string<char16_t, " 565 "std::__[[:alnum:]]+::char_traits<char16_t>, " 566 "std::__[[:alnum:]]+::allocator<char16_t> >$"), 567 stl_summary_flags, true); 568 569 AddCXXSummary(cpp_category_sp, 570 lldb_private::formatters::LibcxxStringSummaryProviderUTF32, 571 "std::u32string summary provider", 572 ConstString( 573 "^std::__[[:alnum:]]+::basic_string<char32_t, " 574 "std::__[[:alnum:]]+::char_traits<char32_t>, " 575 "std::__[[:alnum:]]+::allocator<char32_t> >$"), 576 stl_summary_flags, true); 577 578 AddCXXSummary(cpp_category_sp, 579 lldb_private::formatters::LibcxxWStringSummaryProvider, 580 "std::wstring summary provider", 581 ConstString("^std::__[[:alnum:]]+::wstring$"), 582 stl_summary_flags, true); 583 AddCXXSummary(cpp_category_sp, 584 lldb_private::formatters::LibcxxWStringSummaryProvider, 585 "std::wstring summary provider", 586 ConstString("^std::__[[:alnum:]]+::basic_string<wchar_t, " 587 "std::__[[:alnum:]]+::char_traits<wchar_t>, " 588 "std::__[[:alnum:]]+::allocator<wchar_t> >$"), 589 stl_summary_flags, true); 590 591 SyntheticChildren::Flags stl_synth_flags; 592 stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences( 593 false); 594 SyntheticChildren::Flags stl_deref_flags = stl_synth_flags; 595 stl_deref_flags.SetFrontEndWantsDereference(); 596 597 AddCXXSynthetic( 598 cpp_category_sp, 599 lldb_private::formatters::LibcxxBitsetSyntheticFrontEndCreator, 600 "libc++ std::bitset synthetic children", 601 ConstString("^std::__[[:alnum:]]+::bitset<.+>(( )?&)?$"), stl_deref_flags, 602 true); 603 AddCXXSynthetic( 604 cpp_category_sp, 605 lldb_private::formatters::LibcxxStdVectorSyntheticFrontEndCreator, 606 "libc++ std::vector synthetic children", 607 ConstString("^std::__[[:alnum:]]+::vector<.+>(( )?&)?$"), stl_deref_flags, 608 true); 609 AddCXXSynthetic( 610 cpp_category_sp, 611 lldb_private::formatters::LibcxxStdForwardListSyntheticFrontEndCreator, 612 "libc++ std::forward_list synthetic children", 613 ConstString("^std::__[[:alnum:]]+::forward_list<.+>(( )?&)?$"), 614 stl_synth_flags, true); 615 AddCXXSynthetic( 616 cpp_category_sp, 617 lldb_private::formatters::LibcxxStdListSyntheticFrontEndCreator, 618 "libc++ std::list synthetic children", 619 // A POSIX variant of: "^std::__(?!cxx11:)[[:alnum:]]+::list<.+>(( )?&)?$" 620 // so that it does not clash with: "^std::(__cxx11::)?list<.+>(( )?&)?$" 621 ConstString("^std::__([A-Zabd-z0-9]|cx?[A-Za-wyz0-9]|cxx1?[A-Za-z02-9]|" 622 "cxx11[[:alnum:]])[[:alnum:]]*::list<.+>(( )?&)?$"), 623 stl_deref_flags, true); 624 AddCXXSynthetic( 625 cpp_category_sp, 626 lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, 627 "libc++ std::map synthetic children", 628 ConstString("^std::__[[:alnum:]]+::map<.+> >(( )?&)?$"), stl_synth_flags, 629 true); 630 AddCXXSynthetic( 631 cpp_category_sp, 632 lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, 633 "libc++ std::set synthetic children", 634 ConstString("^std::__[[:alnum:]]+::set<.+> >(( )?&)?$"), stl_deref_flags, 635 true); 636 AddCXXSynthetic( 637 cpp_category_sp, 638 lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, 639 "libc++ std::multiset synthetic children", 640 ConstString("^std::__[[:alnum:]]+::multiset<.+> >(( )?&)?$"), 641 stl_deref_flags, true); 642 AddCXXSynthetic( 643 cpp_category_sp, 644 lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, 645 "libc++ std::multimap synthetic children", 646 ConstString("^std::__[[:alnum:]]+::multimap<.+> >(( )?&)?$"), 647 stl_synth_flags, true); 648 AddCXXSynthetic( 649 cpp_category_sp, 650 lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEndCreator, 651 "libc++ std::unordered containers synthetic children", 652 ConstString("^(std::__[[:alnum:]]+::)unordered_(multi)?(map|set)<.+> >$"), 653 stl_synth_flags, true); 654 AddCXXSynthetic( 655 cpp_category_sp, 656 lldb_private::formatters::LibcxxInitializerListSyntheticFrontEndCreator, 657 "libc++ std::initializer_list synthetic children", 658 ConstString("^std::initializer_list<.+>(( )?&)?$"), stl_synth_flags, 659 true); 660 AddCXXSynthetic(cpp_category_sp, LibcxxQueueFrontEndCreator, 661 "libc++ std::queue synthetic children", 662 ConstString("^std::__[[:alnum:]]+::queue<.+>(( )?&)?$"), 663 stl_synth_flags, true); 664 AddCXXSynthetic(cpp_category_sp, LibcxxTupleFrontEndCreator, 665 "libc++ std::tuple synthetic children", 666 ConstString("^std::__[[:alnum:]]+::tuple<.*>(( )?&)?$"), 667 stl_synth_flags, true); 668 AddCXXSynthetic(cpp_category_sp, LibcxxOptionalFrontEndCreator, 669 "libc++ std::optional synthetic children", 670 ConstString("^std::__[[:alnum:]]+::optional<.+>(( )?&)?$"), 671 stl_synth_flags, true); 672 AddCXXSynthetic(cpp_category_sp, LibcxxVariantFrontEndCreator, 673 "libc++ std::variant synthetic children", 674 ConstString("^std::__[[:alnum:]]+::variant<.+>(( )?&)?$"), 675 stl_synth_flags, true); 676 AddCXXSynthetic( 677 cpp_category_sp, 678 lldb_private::formatters::LibcxxAtomicSyntheticFrontEndCreator, 679 "libc++ std::atomic synthetic children", 680 ConstString("^std::__[[:alnum:]]+::atomic<.+>$"), stl_synth_flags, true); 681 682 cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add( 683 RegularExpression("^(std::__[[:alnum:]]+::)deque<.+>(( )?&)?$"), 684 SyntheticChildrenSP(new ScriptedSyntheticChildren( 685 stl_synth_flags, 686 "lldb.formatters.cpp.libcxx.stddeque_SynthProvider"))); 687 688 AddCXXSynthetic( 689 cpp_category_sp, 690 lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator, 691 "shared_ptr synthetic children", 692 ConstString("^(std::__[[:alnum:]]+::)shared_ptr<.+>(( )?&)?$"), 693 stl_synth_flags, true); 694 695 ConstString libcxx_std_unique_ptr_regex( 696 "^std::__[[:alnum:]]+::unique_ptr<.+>(( )?&)?$"); 697 AddCXXSynthetic( 698 cpp_category_sp, 699 lldb_private::formatters::LibcxxUniquePtrSyntheticFrontEndCreator, 700 "unique_ptr synthetic children", libcxx_std_unique_ptr_regex, 701 stl_synth_flags, true); 702 703 AddCXXSynthetic( 704 cpp_category_sp, 705 lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator, 706 "weak_ptr synthetic children", 707 ConstString("^(std::__[[:alnum:]]+::)weak_ptr<.+>(( )?&)?$"), 708 stl_synth_flags, true); 709 AddCXXSummary(cpp_category_sp, 710 lldb_private::formatters::LibcxxFunctionSummaryProvider, 711 "libc++ std::function summary provider", 712 ConstString("^std::__[[:alnum:]]+::function<.+>$"), 713 stl_summary_flags, true); 714 715 stl_summary_flags.SetDontShowChildren(false); 716 stl_summary_flags.SetSkipPointers(false); 717 AddCXXSummary(cpp_category_sp, 718 lldb_private::formatters::LibcxxContainerSummaryProvider, 719 "libc++ std::bitset summary provider", 720 ConstString("^std::__[[:alnum:]]+::bitset<.+>(( )?&)?$"), 721 stl_summary_flags, true); 722 AddCXXSummary(cpp_category_sp, 723 lldb_private::formatters::LibcxxContainerSummaryProvider, 724 "libc++ std::vector summary provider", 725 ConstString("^std::__[[:alnum:]]+::vector<.+>(( )?&)?$"), 726 stl_summary_flags, true); 727 AddCXXSummary(cpp_category_sp, 728 lldb_private::formatters::LibcxxContainerSummaryProvider, 729 "libc++ std::list summary provider", 730 ConstString("^std::__[[:alnum:]]+::forward_list<.+>(( )?&)?$"), 731 stl_summary_flags, true); 732 AddCXXSummary( 733 cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, 734 "libc++ std::list summary provider", 735 // A POSIX variant of: "^std::__(?!cxx11:)[[:alnum:]]+::list<.+>(( )?&)?$" 736 // so that it does not clash with: "^std::(__cxx11::)?list<.+>(( )?&)?$" 737 ConstString("^std::__([A-Zabd-z0-9]|cx?[A-Za-wyz0-9]|cxx1?[A-Za-z02-9]|" 738 "cxx11[[:alnum:]])[[:alnum:]]*::list<.+>(( )?&)?$"), 739 stl_summary_flags, true); 740 AddCXXSummary(cpp_category_sp, 741 lldb_private::formatters::LibcxxContainerSummaryProvider, 742 "libc++ std::map summary provider", 743 ConstString("^std::__[[:alnum:]]+::map<.+>(( )?&)?$"), 744 stl_summary_flags, true); 745 AddCXXSummary(cpp_category_sp, 746 lldb_private::formatters::LibcxxContainerSummaryProvider, 747 "libc++ std::deque summary provider", 748 ConstString("^std::__[[:alnum:]]+::deque<.+>(( )?&)?$"), 749 stl_summary_flags, true); 750 AddCXXSummary(cpp_category_sp, 751 lldb_private::formatters::LibcxxContainerSummaryProvider, 752 "libc++ std::queue summary provider", 753 ConstString("^std::__[[:alnum:]]+::queue<.+>(( )?&)?$"), 754 stl_summary_flags, true); 755 AddCXXSummary(cpp_category_sp, 756 lldb_private::formatters::LibcxxContainerSummaryProvider, 757 "libc++ std::set summary provider", 758 ConstString("^std::__[[:alnum:]]+::set<.+>(( )?&)?$"), 759 stl_summary_flags, true); 760 AddCXXSummary(cpp_category_sp, 761 lldb_private::formatters::LibcxxContainerSummaryProvider, 762 "libc++ std::multiset summary provider", 763 ConstString("^std::__[[:alnum:]]+::multiset<.+>(( )?&)?$"), 764 stl_summary_flags, true); 765 AddCXXSummary(cpp_category_sp, 766 lldb_private::formatters::LibcxxContainerSummaryProvider, 767 "libc++ std::multimap summary provider", 768 ConstString("^std::__[[:alnum:]]+::multimap<.+>(( )?&)?$"), 769 stl_summary_flags, true); 770 AddCXXSummary( 771 cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, 772 "libc++ std::unordered containers summary provider", 773 ConstString("^(std::__[[:alnum:]]+::)unordered_(multi)?(map|set)<.+> >$"), 774 stl_summary_flags, true); 775 AddCXXSummary(cpp_category_sp, LibcxxContainerSummaryProvider, 776 "libc++ std::tuple summary provider", 777 ConstString("^std::__[[:alnum:]]+::tuple<.*>(( )?&)?$"), 778 stl_summary_flags, true); 779 AddCXXSummary( 780 cpp_category_sp, lldb_private::formatters::LibCxxAtomicSummaryProvider, 781 "libc++ std::atomic summary provider", 782 ConstString("^std::__[[:alnum:]]+::atomic<.+>$"), stl_summary_flags, 783 true); 784 AddCXXSummary(cpp_category_sp, 785 lldb_private::formatters::LibcxxOptionalSummaryProvider, 786 "libc++ std::optional summary provider", 787 ConstString("^std::__[[:alnum:]]+::optional<.+>(( )?&)?$"), 788 stl_summary_flags, true); 789 AddCXXSummary(cpp_category_sp, 790 lldb_private::formatters::LibcxxVariantSummaryProvider, 791 "libc++ std::variant summary provider", 792 ConstString("^std::__[[:alnum:]]+::variant<.+>(( )?&)?$"), 793 stl_summary_flags, true); 794 795 stl_summary_flags.SetSkipPointers(true); 796 797 AddCXXSummary(cpp_category_sp, 798 lldb_private::formatters::LibcxxSmartPointerSummaryProvider, 799 "libc++ std::shared_ptr summary provider", 800 ConstString("^std::__[[:alnum:]]+::shared_ptr<.+>(( )?&)?$"), 801 stl_summary_flags, true); 802 AddCXXSummary(cpp_category_sp, 803 lldb_private::formatters::LibcxxSmartPointerSummaryProvider, 804 "libc++ std::weak_ptr summary provider", 805 ConstString("^std::__[[:alnum:]]+::weak_ptr<.+>(( )?&)?$"), 806 stl_summary_flags, true); 807 AddCXXSummary(cpp_category_sp, 808 lldb_private::formatters::LibcxxUniquePointerSummaryProvider, 809 "libc++ std::unique_ptr summary provider", 810 libcxx_std_unique_ptr_regex, stl_summary_flags, true); 811 812 AddCXXSynthetic( 813 cpp_category_sp, 814 lldb_private::formatters::LibCxxVectorIteratorSyntheticFrontEndCreator, 815 "std::vector iterator synthetic children", 816 ConstString("^std::__[[:alnum:]]+::__wrap_iter<.+>$"), stl_synth_flags, 817 true); 818 819 AddCXXSynthetic( 820 cpp_category_sp, 821 lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEndCreator, 822 "std::map iterator synthetic children", 823 ConstString("^std::__[[:alnum:]]+::__map_iterator<.+>$"), stl_synth_flags, 824 true); 825 } 826 827 static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) { 828 if (!cpp_category_sp) 829 return; 830 831 TypeSummaryImpl::Flags stl_summary_flags; 832 stl_summary_flags.SetCascades(true) 833 .SetSkipPointers(false) 834 .SetSkipReferences(false) 835 .SetDontShowChildren(true) 836 .SetDontShowValue(true) 837 .SetShowMembersOneLiner(false) 838 .SetHideItemNames(false); 839 840 lldb::TypeSummaryImplSP std_string_summary_sp( 841 new StringSummaryFormat(stl_summary_flags, "${var._M_dataplus._M_p}")); 842 843 lldb::TypeSummaryImplSP cxx11_string_summary_sp(new CXXFunctionSummaryFormat( 844 stl_summary_flags, LibStdcppStringSummaryProvider, 845 "libstdc++ c++11 std::string summary provider")); 846 lldb::TypeSummaryImplSP cxx11_wstring_summary_sp(new CXXFunctionSummaryFormat( 847 stl_summary_flags, LibStdcppWStringSummaryProvider, 848 "libstdc++ c++11 std::wstring summary provider")); 849 850 cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::string"), 851 std_string_summary_sp); 852 cpp_category_sp->GetTypeSummariesContainer()->Add( 853 ConstString("std::basic_string<char>"), std_string_summary_sp); 854 cpp_category_sp->GetTypeSummariesContainer()->Add( 855 ConstString("std::basic_string<char,std::char_traits<char>,std::" 856 "allocator<char> >"), 857 std_string_summary_sp); 858 cpp_category_sp->GetTypeSummariesContainer()->Add( 859 ConstString("std::basic_string<char, std::char_traits<char>, " 860 "std::allocator<char> >"), 861 std_string_summary_sp); 862 863 cpp_category_sp->GetTypeSummariesContainer()->Add( 864 ConstString("std::__cxx11::string"), cxx11_string_summary_sp); 865 cpp_category_sp->GetTypeSummariesContainer()->Add( 866 ConstString("std::__cxx11::basic_string<char, std::char_traits<char>, " 867 "std::allocator<char> >"), 868 cxx11_string_summary_sp); 869 cpp_category_sp->GetTypeSummariesContainer()->Add( 870 ConstString("std::__cxx11::basic_string<unsigned char, std::char_traits<unsigned char>, " 871 "std::allocator<unsigned char> >"), 872 cxx11_string_summary_sp); 873 874 // making sure we force-pick the summary for printing wstring (_M_p is a 875 // wchar_t*) 876 lldb::TypeSummaryImplSP std_wstring_summary_sp( 877 new StringSummaryFormat(stl_summary_flags, "${var._M_dataplus._M_p%S}")); 878 879 cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::wstring"), 880 std_wstring_summary_sp); 881 cpp_category_sp->GetTypeSummariesContainer()->Add( 882 ConstString("std::basic_string<wchar_t>"), std_wstring_summary_sp); 883 cpp_category_sp->GetTypeSummariesContainer()->Add( 884 ConstString("std::basic_string<wchar_t,std::char_traits<wchar_t>,std::" 885 "allocator<wchar_t> >"), 886 std_wstring_summary_sp); 887 cpp_category_sp->GetTypeSummariesContainer()->Add( 888 ConstString("std::basic_string<wchar_t, std::char_traits<wchar_t>, " 889 "std::allocator<wchar_t> >"), 890 std_wstring_summary_sp); 891 892 cpp_category_sp->GetTypeSummariesContainer()->Add( 893 ConstString("std::__cxx11::wstring"), cxx11_wstring_summary_sp); 894 cpp_category_sp->GetTypeSummariesContainer()->Add( 895 ConstString("std::__cxx11::basic_string<wchar_t, " 896 "std::char_traits<wchar_t>, std::allocator<wchar_t> >"), 897 cxx11_wstring_summary_sp); 898 899 SyntheticChildren::Flags stl_synth_flags; 900 stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences( 901 false); 902 903 cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add( 904 RegularExpression("^std::vector<.+>(( )?&)?$"), 905 SyntheticChildrenSP(new ScriptedSyntheticChildren( 906 stl_synth_flags, 907 "lldb.formatters.cpp.gnu_libstdcpp.StdVectorSynthProvider"))); 908 cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add( 909 RegularExpression("^std::map<.+> >(( )?&)?$"), 910 SyntheticChildrenSP(new ScriptedSyntheticChildren( 911 stl_synth_flags, 912 "lldb.formatters.cpp.gnu_libstdcpp.StdMapSynthProvider"))); 913 cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add( 914 RegularExpression("^std::(__cxx11::)?list<.+>(( )?&)?$"), 915 SyntheticChildrenSP(new ScriptedSyntheticChildren( 916 stl_synth_flags, 917 "lldb.formatters.cpp.gnu_libstdcpp.StdListSynthProvider"))); 918 stl_summary_flags.SetDontShowChildren(false); 919 stl_summary_flags.SetSkipPointers(true); 920 cpp_category_sp->GetRegexTypeSummariesContainer()->Add( 921 RegularExpression("^std::vector<.+>(( )?&)?$"), 922 TypeSummaryImplSP( 923 new StringSummaryFormat(stl_summary_flags, "size=${svar%#}"))); 924 cpp_category_sp->GetRegexTypeSummariesContainer()->Add( 925 RegularExpression("^std::map<.+> >(( )?&)?$"), 926 TypeSummaryImplSP( 927 new StringSummaryFormat(stl_summary_flags, "size=${svar%#}"))); 928 cpp_category_sp->GetRegexTypeSummariesContainer()->Add( 929 RegularExpression("^std::(__cxx11::)?list<.+>(( )?&)?$"), 930 TypeSummaryImplSP( 931 new StringSummaryFormat(stl_summary_flags, "size=${svar%#}"))); 932 933 AddCXXSynthetic( 934 cpp_category_sp, 935 lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator, 936 "std::vector iterator synthetic children", 937 ConstString("^__gnu_cxx::__normal_iterator<.+>$"), stl_synth_flags, true); 938 939 AddCXXSynthetic( 940 cpp_category_sp, 941 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator, 942 "std::map iterator synthetic children", 943 ConstString("^std::_Rb_tree_iterator<.+>$"), stl_synth_flags, true); 944 945 AddCXXSynthetic( 946 cpp_category_sp, 947 lldb_private::formatters::LibStdcppUniquePtrSyntheticFrontEndCreator, 948 "std::unique_ptr synthetic children", 949 ConstString("^std::unique_ptr<.+>(( )?&)?$"), stl_synth_flags, true); 950 AddCXXSynthetic( 951 cpp_category_sp, 952 lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator, 953 "std::shared_ptr synthetic children", 954 ConstString("^std::shared_ptr<.+>(( )?&)?$"), stl_synth_flags, true); 955 AddCXXSynthetic( 956 cpp_category_sp, 957 lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator, 958 "std::weak_ptr synthetic children", 959 ConstString("^std::weak_ptr<.+>(( )?&)?$"), stl_synth_flags, true); 960 AddCXXSynthetic( 961 cpp_category_sp, 962 lldb_private::formatters::LibStdcppTupleSyntheticFrontEndCreator, 963 "std::tuple synthetic children", ConstString("^std::tuple<.+>(( )?&)?$"), 964 stl_synth_flags, true); 965 966 AddCXXSummary(cpp_category_sp, 967 lldb_private::formatters::LibStdcppUniquePointerSummaryProvider, 968 "libstdc++ std::unique_ptr summary provider", 969 ConstString("^std::unique_ptr<.+>(( )?&)?$"), stl_summary_flags, 970 true); 971 AddCXXSummary(cpp_category_sp, 972 lldb_private::formatters::LibStdcppSmartPointerSummaryProvider, 973 "libstdc++ std::shared_ptr summary provider", 974 ConstString("^std::shared_ptr<.+>(( )?&)?$"), stl_summary_flags, 975 true); 976 AddCXXSummary(cpp_category_sp, 977 lldb_private::formatters::LibStdcppSmartPointerSummaryProvider, 978 "libstdc++ std::weak_ptr summary provider", 979 ConstString("^std::weak_ptr<.+>(( )?&)?$"), stl_summary_flags, 980 true); 981 } 982 983 static void LoadSystemFormatters(lldb::TypeCategoryImplSP cpp_category_sp) { 984 if (!cpp_category_sp) 985 return; 986 987 TypeSummaryImpl::Flags string_flags; 988 string_flags.SetCascades(true) 989 .SetSkipPointers(true) 990 .SetSkipReferences(false) 991 .SetDontShowChildren(true) 992 .SetDontShowValue(false) 993 .SetShowMembersOneLiner(false) 994 .SetHideItemNames(false); 995 996 TypeSummaryImpl::Flags string_array_flags; 997 string_array_flags.SetCascades(true) 998 .SetSkipPointers(true) 999 .SetSkipReferences(false) 1000 .SetDontShowChildren(true) 1001 .SetDontShowValue(true) 1002 .SetShowMembersOneLiner(false) 1003 .SetHideItemNames(false); 1004 1005 // FIXME because of a bug in the FormattersContainer we need to add a summary 1006 // for both X* and const X* (<rdar://problem/12717717>) 1007 AddCXXSummary( 1008 cpp_category_sp, lldb_private::formatters::Char8StringSummaryProvider, 1009 "char8_t * summary provider", ConstString("char8_t *"), string_flags); 1010 AddCXXSummary(cpp_category_sp, 1011 lldb_private::formatters::Char8StringSummaryProvider, 1012 "char8_t [] summary provider", 1013 ConstString("char8_t \\[[0-9]+\\]"), string_array_flags, true); 1014 1015 AddCXXSummary( 1016 cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider, 1017 "char16_t * summary provider", ConstString("char16_t *"), string_flags); 1018 AddCXXSummary(cpp_category_sp, 1019 lldb_private::formatters::Char16StringSummaryProvider, 1020 "char16_t [] summary provider", 1021 ConstString("char16_t \\[[0-9]+\\]"), string_array_flags, true); 1022 1023 AddCXXSummary( 1024 cpp_category_sp, lldb_private::formatters::Char32StringSummaryProvider, 1025 "char32_t * summary provider", ConstString("char32_t *"), string_flags); 1026 AddCXXSummary(cpp_category_sp, 1027 lldb_private::formatters::Char32StringSummaryProvider, 1028 "char32_t [] summary provider", 1029 ConstString("char32_t \\[[0-9]+\\]"), string_array_flags, true); 1030 1031 AddCXXSummary( 1032 cpp_category_sp, lldb_private::formatters::WCharStringSummaryProvider, 1033 "wchar_t * summary provider", ConstString("wchar_t *"), string_flags); 1034 AddCXXSummary(cpp_category_sp, 1035 lldb_private::formatters::WCharStringSummaryProvider, 1036 "wchar_t * summary provider", 1037 ConstString("wchar_t \\[[0-9]+\\]"), string_array_flags, true); 1038 1039 AddCXXSummary( 1040 cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider, 1041 "unichar * summary provider", ConstString("unichar *"), string_flags); 1042 1043 TypeSummaryImpl::Flags widechar_flags; 1044 widechar_flags.SetDontShowValue(true) 1045 .SetSkipPointers(true) 1046 .SetSkipReferences(false) 1047 .SetCascades(true) 1048 .SetDontShowChildren(true) 1049 .SetHideItemNames(true) 1050 .SetShowMembersOneLiner(false); 1051 1052 AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char8SummaryProvider, 1053 "char8_t summary provider", ConstString("char8_t"), 1054 widechar_flags); 1055 AddCXXSummary( 1056 cpp_category_sp, lldb_private::formatters::Char16SummaryProvider, 1057 "char16_t summary provider", ConstString("char16_t"), widechar_flags); 1058 AddCXXSummary( 1059 cpp_category_sp, lldb_private::formatters::Char32SummaryProvider, 1060 "char32_t summary provider", ConstString("char32_t"), widechar_flags); 1061 AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharSummaryProvider, 1062 "wchar_t summary provider", ConstString("wchar_t"), 1063 widechar_flags); 1064 1065 AddCXXSummary( 1066 cpp_category_sp, lldb_private::formatters::Char16SummaryProvider, 1067 "unichar summary provider", ConstString("unichar"), widechar_flags); 1068 } 1069 1070 std::unique_ptr<Language::TypeScavenger> CPlusPlusLanguage::GetTypeScavenger() { 1071 class CPlusPlusTypeScavenger : public Language::ImageListTypeScavenger { 1072 public: 1073 CompilerType AdjustForInclusion(CompilerType &candidate) override { 1074 LanguageType lang_type(candidate.GetMinimumLanguage()); 1075 if (!Language::LanguageIsC(lang_type) && 1076 !Language::LanguageIsCPlusPlus(lang_type)) 1077 return CompilerType(); 1078 if (candidate.IsTypedefType()) 1079 return candidate.GetTypedefedType(); 1080 return candidate; 1081 } 1082 }; 1083 1084 return std::unique_ptr<TypeScavenger>(new CPlusPlusTypeScavenger()); 1085 } 1086 1087 lldb::TypeCategoryImplSP CPlusPlusLanguage::GetFormatters() { 1088 static llvm::once_flag g_initialize; 1089 static TypeCategoryImplSP g_category; 1090 1091 llvm::call_once(g_initialize, [this]() -> void { 1092 DataVisualization::Categories::GetCategory(ConstString(GetPluginName()), 1093 g_category); 1094 if (g_category) { 1095 LoadLibStdcppFormatters(g_category); 1096 LoadLibCxxFormatters(g_category); 1097 LoadSystemFormatters(g_category); 1098 } 1099 }); 1100 return g_category; 1101 } 1102 1103 HardcodedFormatters::HardcodedSummaryFinder 1104 CPlusPlusLanguage::GetHardcodedSummaries() { 1105 static llvm::once_flag g_initialize; 1106 static ConstString g_vectortypes("VectorTypes"); 1107 static HardcodedFormatters::HardcodedSummaryFinder g_formatters; 1108 1109 llvm::call_once(g_initialize, []() -> void { 1110 g_formatters.push_back( 1111 [](lldb_private::ValueObject &valobj, lldb::DynamicValueType, 1112 FormatManager &) -> TypeSummaryImpl::SharedPointer { 1113 static CXXFunctionSummaryFormat::SharedPointer formatter_sp( 1114 new CXXFunctionSummaryFormat( 1115 TypeSummaryImpl::Flags(), 1116 lldb_private::formatters::CXXFunctionPointerSummaryProvider, 1117 "Function pointer summary provider")); 1118 if (valobj.GetCompilerType().IsFunctionPointerType()) { 1119 return formatter_sp; 1120 } 1121 return nullptr; 1122 }); 1123 g_formatters.push_back( 1124 [](lldb_private::ValueObject &valobj, lldb::DynamicValueType, 1125 FormatManager &fmt_mgr) -> TypeSummaryImpl::SharedPointer { 1126 static CXXFunctionSummaryFormat::SharedPointer formatter_sp( 1127 new CXXFunctionSummaryFormat( 1128 TypeSummaryImpl::Flags() 1129 .SetCascades(true) 1130 .SetDontShowChildren(true) 1131 .SetHideItemNames(true) 1132 .SetShowMembersOneLiner(true) 1133 .SetSkipPointers(true) 1134 .SetSkipReferences(false), 1135 lldb_private::formatters::VectorTypeSummaryProvider, 1136 "vector_type pointer summary provider")); 1137 if (valobj.GetCompilerType().IsVectorType()) { 1138 if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled()) 1139 return formatter_sp; 1140 } 1141 return nullptr; 1142 }); 1143 g_formatters.push_back( 1144 [](lldb_private::ValueObject &valobj, lldb::DynamicValueType, 1145 FormatManager &fmt_mgr) -> TypeSummaryImpl::SharedPointer { 1146 static CXXFunctionSummaryFormat::SharedPointer formatter_sp( 1147 new CXXFunctionSummaryFormat( 1148 TypeSummaryImpl::Flags() 1149 .SetCascades(true) 1150 .SetDontShowChildren(true) 1151 .SetHideItemNames(true) 1152 .SetShowMembersOneLiner(true) 1153 .SetSkipPointers(true) 1154 .SetSkipReferences(false), 1155 lldb_private::formatters::BlockPointerSummaryProvider, 1156 "block pointer summary provider")); 1157 if (valobj.GetCompilerType().IsBlockPointerType()) { 1158 return formatter_sp; 1159 } 1160 return nullptr; 1161 }); 1162 }); 1163 1164 return g_formatters; 1165 } 1166 1167 HardcodedFormatters::HardcodedSyntheticFinder 1168 CPlusPlusLanguage::GetHardcodedSynthetics() { 1169 static llvm::once_flag g_initialize; 1170 static ConstString g_vectortypes("VectorTypes"); 1171 static HardcodedFormatters::HardcodedSyntheticFinder g_formatters; 1172 1173 llvm::call_once(g_initialize, []() -> void { 1174 g_formatters.push_back([](lldb_private::ValueObject &valobj, 1175 lldb::DynamicValueType, 1176 FormatManager & 1177 fmt_mgr) -> SyntheticChildren::SharedPointer { 1178 static CXXSyntheticChildren::SharedPointer formatter_sp( 1179 new CXXSyntheticChildren( 1180 SyntheticChildren::Flags() 1181 .SetCascades(true) 1182 .SetSkipPointers(true) 1183 .SetSkipReferences(true) 1184 .SetNonCacheable(true), 1185 "vector_type synthetic children", 1186 lldb_private::formatters::VectorTypeSyntheticFrontEndCreator)); 1187 if (valobj.GetCompilerType().IsVectorType()) { 1188 if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled()) 1189 return formatter_sp; 1190 } 1191 return nullptr; 1192 }); 1193 g_formatters.push_back([](lldb_private::ValueObject &valobj, 1194 lldb::DynamicValueType, 1195 FormatManager & 1196 fmt_mgr) -> SyntheticChildren::SharedPointer { 1197 static CXXSyntheticChildren::SharedPointer formatter_sp( 1198 new CXXSyntheticChildren( 1199 SyntheticChildren::Flags() 1200 .SetCascades(true) 1201 .SetSkipPointers(true) 1202 .SetSkipReferences(true) 1203 .SetNonCacheable(true), 1204 "block pointer synthetic children", 1205 lldb_private::formatters::BlockPointerSyntheticFrontEndCreator)); 1206 if (valobj.GetCompilerType().IsBlockPointerType()) { 1207 return formatter_sp; 1208 } 1209 return nullptr; 1210 }); 1211 1212 }); 1213 1214 return g_formatters; 1215 } 1216 1217 bool CPlusPlusLanguage::IsNilReference(ValueObject &valobj) { 1218 if (!Language::LanguageIsCPlusPlus(valobj.GetObjectRuntimeLanguage()) || 1219 !valobj.IsPointerType()) 1220 return false; 1221 bool canReadValue = true; 1222 bool isZero = valobj.GetValueAsUnsigned(0, &canReadValue) == 0; 1223 return canReadValue && isZero; 1224 } 1225 1226 bool CPlusPlusLanguage::IsSourceFile(llvm::StringRef file_path) const { 1227 const auto suffixes = {".cpp", ".cxx", ".c++", ".cc", ".c", 1228 ".h", ".hh", ".hpp", ".hxx", ".h++"}; 1229 for (auto suffix : suffixes) { 1230 if (file_path.endswith_insensitive(suffix)) 1231 return true; 1232 } 1233 1234 // Check if we're in a STL path (where the files usually have no extension 1235 // that we could check for. 1236 return file_path.contains("/usr/include/c++/"); 1237 } 1238