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