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 protected: 336 void reset(llvm::StringRef Mangled) { 337 Base::reset(Mangled.begin(), Mangled.end()); 338 Written = Mangled.begin(); 339 Result.clear(); 340 Substituted = false; 341 } 342 343 ConstString substituteImpl(llvm::StringRef Mangled) { 344 Log *log = GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE); 345 if (this->parse() == nullptr) { 346 LLDB_LOG(log, "Failed to substitute mangling in {0}", Mangled); 347 return ConstString(); 348 } 349 if (!Substituted) 350 return ConstString(); 351 352 // Append any trailing unmodified input. 353 appendUnchangedInput(); 354 LLDB_LOG(log, "Substituted mangling {0} -> {1}", Mangled, Result); 355 return ConstString(Result); 356 } 357 358 void trySubstitute(llvm::StringRef From, llvm::StringRef To) { 359 if (!llvm::StringRef(currentParserPos(), this->numLeft()).startswith(From)) 360 return; 361 362 // We found a match. Append unmodified input up to this point. 363 appendUnchangedInput(); 364 365 // And then perform the replacement. 366 Result += To; 367 Written += From.size(); 368 Substituted = true; 369 } 370 371 private: 372 /// Input character until which we have constructed the respective output 373 /// already. 374 const char *Written; 375 376 llvm::SmallString<128> Result; 377 378 /// Whether we have performed any substitutions. 379 bool Substituted; 380 381 const char *currentParserPos() const { return this->First; } 382 383 void appendUnchangedInput() { 384 Result += 385 llvm::StringRef(Written, std::distance(Written, currentParserPos())); 386 Written = currentParserPos(); 387 } 388 }; 389 390 /// Given a mangled function `Mangled`, replace all the primitive function type 391 /// arguments of `Search` with type `Replace`. 392 class TypeSubstitutor : public ManglingSubstitutor<TypeSubstitutor> { 393 llvm::StringRef Search; 394 llvm::StringRef Replace; 395 396 public: 397 void reset(llvm::StringRef Mangled, llvm::StringRef Search, 398 llvm::StringRef Replace) { 399 ManglingSubstitutor::reset(Mangled); 400 this->Search = Search; 401 this->Replace = Replace; 402 } 403 404 llvm::itanium_demangle::Node *parseType() { 405 trySubstitute(Search, Replace); 406 return ManglingSubstitutor::parseType(); 407 } 408 }; 409 410 class CtorDtorSubstitutor : public ManglingSubstitutor<CtorDtorSubstitutor> { 411 public: 412 llvm::itanium_demangle::Node * 413 parseCtorDtorName(llvm::itanium_demangle::Node *&SoFar, NameState *State) { 414 trySubstitute("C1", "C2"); 415 trySubstitute("D1", "D2"); 416 return ManglingSubstitutor::parseCtorDtorName(SoFar, State); 417 } 418 }; 419 } // namespace 420 421 std::vector<ConstString> CPlusPlusLanguage::GenerateAlternateFunctionManglings( 422 const ConstString mangled_name) const { 423 std::vector<ConstString> alternates; 424 425 /// Get a basic set of alternative manglings for the given symbol `name`, by 426 /// making a few basic possible substitutions on basic types, storage duration 427 /// and `const`ness for the given symbol. The output parameter `alternates` 428 /// is filled with a best-guess, non-exhaustive set of different manglings 429 /// for the given name. 430 431 // Maybe we're looking for a const symbol but the debug info told us it was 432 // non-const... 433 if (!strncmp(mangled_name.GetCString(), "_ZN", 3) && 434 strncmp(mangled_name.GetCString(), "_ZNK", 4)) { 435 std::string fixed_scratch("_ZNK"); 436 fixed_scratch.append(mangled_name.GetCString() + 3); 437 alternates.push_back(ConstString(fixed_scratch)); 438 } 439 440 // Maybe we're looking for a static symbol but we thought it was global... 441 if (!strncmp(mangled_name.GetCString(), "_Z", 2) && 442 strncmp(mangled_name.GetCString(), "_ZL", 3)) { 443 std::string fixed_scratch("_ZL"); 444 fixed_scratch.append(mangled_name.GetCString() + 2); 445 alternates.push_back(ConstString(fixed_scratch)); 446 } 447 448 TypeSubstitutor TS; 449 // `char` is implementation defined as either `signed` or `unsigned`. As a 450 // result a char parameter has 3 possible manglings: 'c'-char, 'a'-signed 451 // char, 'h'-unsigned char. If we're looking for symbols with a signed char 452 // parameter, try finding matches which have the general case 'c'. 453 if (ConstString char_fixup = 454 TS.substitute(mangled_name.GetStringRef(), "a", "c")) 455 alternates.push_back(char_fixup); 456 457 // long long parameter mangling 'x', may actually just be a long 'l' argument 458 if (ConstString long_fixup = 459 TS.substitute(mangled_name.GetStringRef(), "x", "l")) 460 alternates.push_back(long_fixup); 461 462 // unsigned long long parameter mangling 'y', may actually just be unsigned 463 // long 'm' argument 464 if (ConstString ulong_fixup = 465 TS.substitute(mangled_name.GetStringRef(), "y", "m")) 466 alternates.push_back(ulong_fixup); 467 468 if (ConstString ctor_fixup = 469 CtorDtorSubstitutor().substitute(mangled_name.GetStringRef())) 470 alternates.push_back(ctor_fixup); 471 472 return alternates; 473 } 474 475 ConstString CPlusPlusLanguage::FindBestAlternateFunctionMangledName( 476 const Mangled mangled, const SymbolContext &sym_ctx) const { 477 ConstString demangled = mangled.GetDemangledName(); 478 if (!demangled) 479 return ConstString(); 480 481 CPlusPlusLanguage::MethodName cpp_name(demangled); 482 std::string scope_qualified_name = cpp_name.GetScopeQualifiedName(); 483 484 if (!scope_qualified_name.size()) 485 return ConstString(); 486 487 if (!sym_ctx.module_sp) 488 return ConstString(); 489 490 lldb_private::SymbolFile *sym_file = sym_ctx.module_sp->GetSymbolFile(); 491 if (!sym_file) 492 return ConstString(); 493 494 std::vector<ConstString> alternates; 495 sym_file->GetMangledNamesForFunction(scope_qualified_name, alternates); 496 497 std::vector<ConstString> param_and_qual_matches; 498 std::vector<ConstString> param_matches; 499 for (size_t i = 0; i < alternates.size(); i++) { 500 ConstString alternate_mangled_name = alternates[i]; 501 Mangled mangled(alternate_mangled_name); 502 ConstString demangled = mangled.GetDemangledName(); 503 504 CPlusPlusLanguage::MethodName alternate_cpp_name(demangled); 505 if (!cpp_name.IsValid()) 506 continue; 507 508 if (alternate_cpp_name.GetArguments() == cpp_name.GetArguments()) { 509 if (alternate_cpp_name.GetQualifiers() == cpp_name.GetQualifiers()) 510 param_and_qual_matches.push_back(alternate_mangled_name); 511 else 512 param_matches.push_back(alternate_mangled_name); 513 } 514 } 515 516 if (param_and_qual_matches.size()) 517 return param_and_qual_matches[0]; // It is assumed that there will be only 518 // one! 519 else if (param_matches.size()) 520 return param_matches[0]; // Return one of them as a best match 521 else 522 return ConstString(); 523 } 524 525 static void LoadLibCxxFormatters(lldb::TypeCategoryImplSP cpp_category_sp) { 526 if (!cpp_category_sp) 527 return; 528 529 TypeSummaryImpl::Flags stl_summary_flags; 530 stl_summary_flags.SetCascades(true) 531 .SetSkipPointers(false) 532 .SetSkipReferences(false) 533 .SetDontShowChildren(true) 534 .SetDontShowValue(true) 535 .SetShowMembersOneLiner(false) 536 .SetHideItemNames(false); 537 538 AddCXXSummary(cpp_category_sp, 539 lldb_private::formatters::LibcxxStringSummaryProviderASCII, 540 "std::string summary provider", 541 ConstString("^std::__[[:alnum:]]+::string$"), stl_summary_flags, 542 true); 543 AddCXXSummary(cpp_category_sp, 544 lldb_private::formatters::LibcxxStringSummaryProviderASCII, 545 "std::string summary provider", 546 ConstString("^std::__[[:alnum:]]+::basic_string<char, " 547 "std::__[[:alnum:]]+::char_traits<char>, " 548 "std::__[[:alnum:]]+::allocator<char> >$"), 549 stl_summary_flags, true); 550 AddCXXSummary(cpp_category_sp, 551 lldb_private::formatters::LibcxxStringSummaryProviderASCII, 552 "std::string summary provider", 553 ConstString("^std::__[[:alnum:]]+::basic_string<unsigned char, " 554 "std::__[[:alnum:]]+::char_traits<unsigned char>, " 555 "std::__[[:alnum:]]+::allocator<unsigned char> >$"), 556 stl_summary_flags, true); 557 558 AddCXXSummary(cpp_category_sp, 559 lldb_private::formatters::LibcxxStringSummaryProviderUTF16, 560 "std::u16string summary provider", 561 ConstString("^std::__[[:alnum:]]+::basic_string<char16_t, " 562 "std::__[[:alnum:]]+::char_traits<char16_t>, " 563 "std::__[[:alnum:]]+::allocator<char16_t> >$"), 564 stl_summary_flags, true); 565 566 AddCXXSummary(cpp_category_sp, 567 lldb_private::formatters::LibcxxStringSummaryProviderUTF32, 568 "std::u32string summary provider", 569 ConstString("^std::__[[:alnum:]]+::basic_string<char32_t, " 570 "std::__[[:alnum:]]+::char_traits<char32_t>, " 571 "std::__[[:alnum:]]+::allocator<char32_t> >$"), 572 stl_summary_flags, true); 573 574 AddCXXSummary( 575 cpp_category_sp, lldb_private::formatters::LibcxxWStringSummaryProvider, 576 "std::wstring summary provider", 577 ConstString("^std::__[[:alnum:]]+::wstring$"), stl_summary_flags, true); 578 AddCXXSummary(cpp_category_sp, 579 lldb_private::formatters::LibcxxWStringSummaryProvider, 580 "std::wstring summary provider", 581 ConstString("^std::__[[:alnum:]]+::basic_string<wchar_t, " 582 "std::__[[:alnum:]]+::char_traits<wchar_t>, " 583 "std::__[[:alnum:]]+::allocator<wchar_t> >$"), 584 stl_summary_flags, true); 585 586 SyntheticChildren::Flags stl_synth_flags; 587 stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences( 588 false); 589 SyntheticChildren::Flags stl_deref_flags = stl_synth_flags; 590 stl_deref_flags.SetFrontEndWantsDereference(); 591 592 AddCXXSynthetic( 593 cpp_category_sp, 594 lldb_private::formatters::LibcxxBitsetSyntheticFrontEndCreator, 595 "libc++ std::bitset synthetic children", 596 ConstString("^std::__[[:alnum:]]+::bitset<.+>(( )?&)?$"), stl_deref_flags, 597 true); 598 AddCXXSynthetic( 599 cpp_category_sp, 600 lldb_private::formatters::LibcxxStdVectorSyntheticFrontEndCreator, 601 "libc++ std::vector synthetic children", 602 ConstString("^std::__[[:alnum:]]+::vector<.+>(( )?&)?$"), stl_deref_flags, 603 true); 604 AddCXXSynthetic( 605 cpp_category_sp, 606 lldb_private::formatters::LibcxxStdForwardListSyntheticFrontEndCreator, 607 "libc++ std::forward_list synthetic children", 608 ConstString("^std::__[[:alnum:]]+::forward_list<.+>(( )?&)?$"), 609 stl_synth_flags, true); 610 AddCXXSynthetic( 611 cpp_category_sp, 612 lldb_private::formatters::LibcxxStdListSyntheticFrontEndCreator, 613 "libc++ std::list synthetic children", 614 // A POSIX variant of: "^std::__(?!cxx11:)[[:alnum:]]+::list<.+>(( )?&)?$" 615 // so that it does not clash with: "^std::(__cxx11::)?list<.+>(( )?&)?$" 616 ConstString("^std::__([A-Zabd-z0-9]|cx?[A-Za-wyz0-9]|cxx1?[A-Za-z02-9]|" 617 "cxx11[[:alnum:]])[[:alnum:]]*::list<.+>(( )?&)?$"), 618 stl_deref_flags, true); 619 AddCXXSynthetic( 620 cpp_category_sp, 621 lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, 622 "libc++ std::map synthetic children", 623 ConstString("^std::__[[:alnum:]]+::map<.+> >(( )?&)?$"), stl_synth_flags, 624 true); 625 AddCXXSynthetic( 626 cpp_category_sp, 627 lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, 628 "libc++ std::set synthetic children", 629 ConstString("^std::__[[:alnum:]]+::set<.+> >(( )?&)?$"), stl_deref_flags, 630 true); 631 AddCXXSynthetic( 632 cpp_category_sp, 633 lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, 634 "libc++ std::multiset synthetic children", 635 ConstString("^std::__[[:alnum:]]+::multiset<.+> >(( )?&)?$"), 636 stl_deref_flags, true); 637 AddCXXSynthetic( 638 cpp_category_sp, 639 lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator, 640 "libc++ std::multimap synthetic children", 641 ConstString("^std::__[[:alnum:]]+::multimap<.+> >(( )?&)?$"), 642 stl_synth_flags, true); 643 AddCXXSynthetic( 644 cpp_category_sp, 645 lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEndCreator, 646 "libc++ std::unordered containers synthetic children", 647 ConstString("^(std::__[[:alnum:]]+::)unordered_(multi)?(map|set)<.+> >$"), 648 stl_synth_flags, true); 649 AddCXXSynthetic( 650 cpp_category_sp, 651 lldb_private::formatters::LibcxxInitializerListSyntheticFrontEndCreator, 652 "libc++ std::initializer_list synthetic children", 653 ConstString("^std::initializer_list<.+>(( )?&)?$"), stl_synth_flags, 654 true); 655 AddCXXSynthetic(cpp_category_sp, LibcxxQueueFrontEndCreator, 656 "libc++ std::queue synthetic children", 657 ConstString("^std::__[[:alnum:]]+::queue<.+>(( )?&)?$"), 658 stl_synth_flags, true); 659 AddCXXSynthetic(cpp_category_sp, LibcxxTupleFrontEndCreator, 660 "libc++ std::tuple synthetic children", 661 ConstString("^std::__[[:alnum:]]+::tuple<.*>(( )?&)?$"), 662 stl_synth_flags, true); 663 AddCXXSynthetic(cpp_category_sp, LibcxxOptionalFrontEndCreator, 664 "libc++ std::optional synthetic children", 665 ConstString("^std::__[[:alnum:]]+::optional<.+>(( )?&)?$"), 666 stl_synth_flags, true); 667 AddCXXSynthetic(cpp_category_sp, LibcxxVariantFrontEndCreator, 668 "libc++ std::variant synthetic children", 669 ConstString("^std::__[[:alnum:]]+::variant<.+>(( )?&)?$"), 670 stl_synth_flags, true); 671 AddCXXSynthetic( 672 cpp_category_sp, 673 lldb_private::formatters::LibcxxAtomicSyntheticFrontEndCreator, 674 "libc++ std::atomic synthetic children", 675 ConstString("^std::__[[:alnum:]]+::atomic<.+>$"), stl_synth_flags, true); 676 677 cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add( 678 RegularExpression("^(std::__[[:alnum:]]+::)deque<.+>(( )?&)?$"), 679 SyntheticChildrenSP(new ScriptedSyntheticChildren( 680 stl_synth_flags, 681 "lldb.formatters.cpp.libcxx.stddeque_SynthProvider"))); 682 683 AddCXXSynthetic( 684 cpp_category_sp, 685 lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator, 686 "shared_ptr synthetic children", 687 ConstString("^(std::__[[:alnum:]]+::)shared_ptr<.+>(( )?&)?$"), 688 stl_synth_flags, true); 689 690 ConstString libcxx_std_unique_ptr_regex( 691 "^std::__[[:alnum:]]+::unique_ptr<.+>(( )?&)?$"); 692 AddCXXSynthetic( 693 cpp_category_sp, 694 lldb_private::formatters::LibcxxUniquePtrSyntheticFrontEndCreator, 695 "unique_ptr synthetic children", libcxx_std_unique_ptr_regex, 696 stl_synth_flags, true); 697 698 AddCXXSynthetic( 699 cpp_category_sp, 700 lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator, 701 "weak_ptr synthetic children", 702 ConstString("^(std::__[[:alnum:]]+::)weak_ptr<.+>(( )?&)?$"), 703 stl_synth_flags, true); 704 AddCXXSummary(cpp_category_sp, 705 lldb_private::formatters::LibcxxFunctionSummaryProvider, 706 "libc++ std::function summary provider", 707 ConstString("^std::__[[:alnum:]]+::function<.+>$"), 708 stl_summary_flags, true); 709 710 stl_summary_flags.SetDontShowChildren(false); 711 stl_summary_flags.SetSkipPointers(false); 712 AddCXXSummary(cpp_category_sp, 713 lldb_private::formatters::LibcxxContainerSummaryProvider, 714 "libc++ std::bitset summary provider", 715 ConstString("^std::__[[:alnum:]]+::bitset<.+>(( )?&)?$"), 716 stl_summary_flags, true); 717 AddCXXSummary(cpp_category_sp, 718 lldb_private::formatters::LibcxxContainerSummaryProvider, 719 "libc++ std::vector summary provider", 720 ConstString("^std::__[[:alnum:]]+::vector<.+>(( )?&)?$"), 721 stl_summary_flags, true); 722 AddCXXSummary(cpp_category_sp, 723 lldb_private::formatters::LibcxxContainerSummaryProvider, 724 "libc++ std::list summary provider", 725 ConstString("^std::__[[:alnum:]]+::forward_list<.+>(( )?&)?$"), 726 stl_summary_flags, true); 727 AddCXXSummary( 728 cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, 729 "libc++ std::list summary provider", 730 // A POSIX variant of: "^std::__(?!cxx11:)[[:alnum:]]+::list<.+>(( )?&)?$" 731 // so that it does not clash with: "^std::(__cxx11::)?list<.+>(( )?&)?$" 732 ConstString("^std::__([A-Zabd-z0-9]|cx?[A-Za-wyz0-9]|cxx1?[A-Za-z02-9]|" 733 "cxx11[[:alnum:]])[[:alnum:]]*::list<.+>(( )?&)?$"), 734 stl_summary_flags, true); 735 AddCXXSummary(cpp_category_sp, 736 lldb_private::formatters::LibcxxContainerSummaryProvider, 737 "libc++ std::map summary provider", 738 ConstString("^std::__[[:alnum:]]+::map<.+>(( )?&)?$"), 739 stl_summary_flags, true); 740 AddCXXSummary(cpp_category_sp, 741 lldb_private::formatters::LibcxxContainerSummaryProvider, 742 "libc++ std::deque summary provider", 743 ConstString("^std::__[[:alnum:]]+::deque<.+>(( )?&)?$"), 744 stl_summary_flags, true); 745 AddCXXSummary(cpp_category_sp, 746 lldb_private::formatters::LibcxxContainerSummaryProvider, 747 "libc++ std::queue summary provider", 748 ConstString("^std::__[[:alnum:]]+::queue<.+>(( )?&)?$"), 749 stl_summary_flags, true); 750 AddCXXSummary(cpp_category_sp, 751 lldb_private::formatters::LibcxxContainerSummaryProvider, 752 "libc++ std::set summary provider", 753 ConstString("^std::__[[:alnum:]]+::set<.+>(( )?&)?$"), 754 stl_summary_flags, true); 755 AddCXXSummary(cpp_category_sp, 756 lldb_private::formatters::LibcxxContainerSummaryProvider, 757 "libc++ std::multiset summary provider", 758 ConstString("^std::__[[:alnum:]]+::multiset<.+>(( )?&)?$"), 759 stl_summary_flags, true); 760 AddCXXSummary(cpp_category_sp, 761 lldb_private::formatters::LibcxxContainerSummaryProvider, 762 "libc++ std::multimap summary provider", 763 ConstString("^std::__[[:alnum:]]+::multimap<.+>(( )?&)?$"), 764 stl_summary_flags, true); 765 AddCXXSummary( 766 cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider, 767 "libc++ std::unordered containers summary provider", 768 ConstString("^(std::__[[:alnum:]]+::)unordered_(multi)?(map|set)<.+> >$"), 769 stl_summary_flags, true); 770 AddCXXSummary(cpp_category_sp, LibcxxContainerSummaryProvider, 771 "libc++ std::tuple summary provider", 772 ConstString("^std::__[[:alnum:]]+::tuple<.*>(( )?&)?$"), 773 stl_summary_flags, true); 774 AddCXXSummary(cpp_category_sp, 775 lldb_private::formatters::LibCxxAtomicSummaryProvider, 776 "libc++ std::atomic summary provider", 777 ConstString("^std::__[[:alnum:]]+::atomic<.+>$"), 778 stl_summary_flags, true); 779 AddCXXSummary(cpp_category_sp, 780 lldb_private::formatters::LibcxxOptionalSummaryProvider, 781 "libc++ std::optional summary provider", 782 ConstString("^std::__[[:alnum:]]+::optional<.+>(( )?&)?$"), 783 stl_summary_flags, true); 784 AddCXXSummary(cpp_category_sp, 785 lldb_private::formatters::LibcxxVariantSummaryProvider, 786 "libc++ std::variant summary provider", 787 ConstString("^std::__[[:alnum:]]+::variant<.+>(( )?&)?$"), 788 stl_summary_flags, true); 789 790 stl_summary_flags.SetSkipPointers(true); 791 792 AddCXXSummary(cpp_category_sp, 793 lldb_private::formatters::LibcxxSmartPointerSummaryProvider, 794 "libc++ std::shared_ptr summary provider", 795 ConstString("^std::__[[:alnum:]]+::shared_ptr<.+>(( )?&)?$"), 796 stl_summary_flags, true); 797 AddCXXSummary(cpp_category_sp, 798 lldb_private::formatters::LibcxxSmartPointerSummaryProvider, 799 "libc++ std::weak_ptr summary provider", 800 ConstString("^std::__[[:alnum:]]+::weak_ptr<.+>(( )?&)?$"), 801 stl_summary_flags, true); 802 AddCXXSummary(cpp_category_sp, 803 lldb_private::formatters::LibcxxUniquePointerSummaryProvider, 804 "libc++ std::unique_ptr summary provider", 805 libcxx_std_unique_ptr_regex, stl_summary_flags, true); 806 807 AddCXXSynthetic( 808 cpp_category_sp, 809 lldb_private::formatters::LibCxxVectorIteratorSyntheticFrontEndCreator, 810 "std::vector iterator synthetic children", 811 ConstString("^std::__[[:alnum:]]+::__wrap_iter<.+>$"), stl_synth_flags, 812 true); 813 814 AddCXXSynthetic( 815 cpp_category_sp, 816 lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEndCreator, 817 "std::map iterator synthetic children", 818 ConstString("^std::__[[:alnum:]]+::__map_iterator<.+>$"), stl_synth_flags, 819 true); 820 } 821 822 static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) { 823 if (!cpp_category_sp) 824 return; 825 826 TypeSummaryImpl::Flags stl_summary_flags; 827 stl_summary_flags.SetCascades(true) 828 .SetSkipPointers(false) 829 .SetSkipReferences(false) 830 .SetDontShowChildren(true) 831 .SetDontShowValue(true) 832 .SetShowMembersOneLiner(false) 833 .SetHideItemNames(false); 834 835 lldb::TypeSummaryImplSP std_string_summary_sp( 836 new StringSummaryFormat(stl_summary_flags, "${var._M_dataplus._M_p}")); 837 838 lldb::TypeSummaryImplSP cxx11_string_summary_sp(new CXXFunctionSummaryFormat( 839 stl_summary_flags, LibStdcppStringSummaryProvider, 840 "libstdc++ c++11 std::string summary provider")); 841 lldb::TypeSummaryImplSP cxx11_wstring_summary_sp(new CXXFunctionSummaryFormat( 842 stl_summary_flags, LibStdcppWStringSummaryProvider, 843 "libstdc++ c++11 std::wstring summary provider")); 844 845 cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::string"), 846 std_string_summary_sp); 847 cpp_category_sp->GetTypeSummariesContainer()->Add( 848 ConstString("std::basic_string<char>"), std_string_summary_sp); 849 cpp_category_sp->GetTypeSummariesContainer()->Add( 850 ConstString("std::basic_string<char,std::char_traits<char>,std::" 851 "allocator<char> >"), 852 std_string_summary_sp); 853 cpp_category_sp->GetTypeSummariesContainer()->Add( 854 ConstString("std::basic_string<char, std::char_traits<char>, " 855 "std::allocator<char> >"), 856 std_string_summary_sp); 857 858 cpp_category_sp->GetTypeSummariesContainer()->Add( 859 ConstString("std::__cxx11::string"), cxx11_string_summary_sp); 860 cpp_category_sp->GetTypeSummariesContainer()->Add( 861 ConstString("std::__cxx11::basic_string<char, std::char_traits<char>, " 862 "std::allocator<char> >"), 863 cxx11_string_summary_sp); 864 cpp_category_sp->GetTypeSummariesContainer()->Add( 865 ConstString("std::__cxx11::basic_string<unsigned char, " 866 "std::char_traits<unsigned char>, " 867 "std::allocator<unsigned char> >"), 868 cxx11_string_summary_sp); 869 870 // making sure we force-pick the summary for printing wstring (_M_p is a 871 // wchar_t*) 872 lldb::TypeSummaryImplSP std_wstring_summary_sp( 873 new StringSummaryFormat(stl_summary_flags, "${var._M_dataplus._M_p%S}")); 874 875 cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::wstring"), 876 std_wstring_summary_sp); 877 cpp_category_sp->GetTypeSummariesContainer()->Add( 878 ConstString("std::basic_string<wchar_t>"), std_wstring_summary_sp); 879 cpp_category_sp->GetTypeSummariesContainer()->Add( 880 ConstString("std::basic_string<wchar_t,std::char_traits<wchar_t>,std::" 881 "allocator<wchar_t> >"), 882 std_wstring_summary_sp); 883 cpp_category_sp->GetTypeSummariesContainer()->Add( 884 ConstString("std::basic_string<wchar_t, std::char_traits<wchar_t>, " 885 "std::allocator<wchar_t> >"), 886 std_wstring_summary_sp); 887 888 cpp_category_sp->GetTypeSummariesContainer()->Add( 889 ConstString("std::__cxx11::wstring"), cxx11_wstring_summary_sp); 890 cpp_category_sp->GetTypeSummariesContainer()->Add( 891 ConstString("std::__cxx11::basic_string<wchar_t, " 892 "std::char_traits<wchar_t>, std::allocator<wchar_t> >"), 893 cxx11_wstring_summary_sp); 894 895 SyntheticChildren::Flags stl_synth_flags; 896 stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences( 897 false); 898 899 cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add( 900 RegularExpression("^std::vector<.+>(( )?&)?$"), 901 SyntheticChildrenSP(new ScriptedSyntheticChildren( 902 stl_synth_flags, 903 "lldb.formatters.cpp.gnu_libstdcpp.StdVectorSynthProvider"))); 904 cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add( 905 RegularExpression("^std::map<.+> >(( )?&)?$"), 906 SyntheticChildrenSP(new ScriptedSyntheticChildren( 907 stl_synth_flags, 908 "lldb.formatters.cpp.gnu_libstdcpp.StdMapSynthProvider"))); 909 cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add( 910 RegularExpression("^std::(__cxx11::)?list<.+>(( )?&)?$"), 911 SyntheticChildrenSP(new ScriptedSyntheticChildren( 912 stl_synth_flags, 913 "lldb.formatters.cpp.gnu_libstdcpp.StdListSynthProvider"))); 914 stl_summary_flags.SetDontShowChildren(false); 915 stl_summary_flags.SetSkipPointers(true); 916 cpp_category_sp->GetRegexTypeSummariesContainer()->Add( 917 RegularExpression("^std::vector<.+>(( )?&)?$"), 918 TypeSummaryImplSP( 919 new StringSummaryFormat(stl_summary_flags, "size=${svar%#}"))); 920 cpp_category_sp->GetRegexTypeSummariesContainer()->Add( 921 RegularExpression("^std::map<.+> >(( )?&)?$"), 922 TypeSummaryImplSP( 923 new StringSummaryFormat(stl_summary_flags, "size=${svar%#}"))); 924 cpp_category_sp->GetRegexTypeSummariesContainer()->Add( 925 RegularExpression("^std::(__cxx11::)?list<.+>(( )?&)?$"), 926 TypeSummaryImplSP( 927 new StringSummaryFormat(stl_summary_flags, "size=${svar%#}"))); 928 929 AddCXXSynthetic( 930 cpp_category_sp, 931 lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator, 932 "std::vector iterator synthetic children", 933 ConstString("^__gnu_cxx::__normal_iterator<.+>$"), stl_synth_flags, true); 934 935 AddCXXSynthetic( 936 cpp_category_sp, 937 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator, 938 "std::map iterator synthetic children", 939 ConstString("^std::_Rb_tree_iterator<.+>$"), stl_synth_flags, true); 940 941 AddCXXSynthetic( 942 cpp_category_sp, 943 lldb_private::formatters::LibStdcppUniquePtrSyntheticFrontEndCreator, 944 "std::unique_ptr synthetic children", 945 ConstString("^std::unique_ptr<.+>(( )?&)?$"), stl_synth_flags, true); 946 AddCXXSynthetic( 947 cpp_category_sp, 948 lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator, 949 "std::shared_ptr synthetic children", 950 ConstString("^std::shared_ptr<.+>(( )?&)?$"), stl_synth_flags, true); 951 AddCXXSynthetic( 952 cpp_category_sp, 953 lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator, 954 "std::weak_ptr synthetic children", 955 ConstString("^std::weak_ptr<.+>(( )?&)?$"), stl_synth_flags, true); 956 AddCXXSynthetic( 957 cpp_category_sp, 958 lldb_private::formatters::LibStdcppTupleSyntheticFrontEndCreator, 959 "std::tuple synthetic children", ConstString("^std::tuple<.+>(( )?&)?$"), 960 stl_synth_flags, true); 961 962 AddCXXSummary(cpp_category_sp, 963 lldb_private::formatters::LibStdcppUniquePointerSummaryProvider, 964 "libstdc++ std::unique_ptr summary provider", 965 ConstString("^std::unique_ptr<.+>(( )?&)?$"), stl_summary_flags, 966 true); 967 AddCXXSummary(cpp_category_sp, 968 lldb_private::formatters::LibStdcppSmartPointerSummaryProvider, 969 "libstdc++ std::shared_ptr summary provider", 970 ConstString("^std::shared_ptr<.+>(( )?&)?$"), stl_summary_flags, 971 true); 972 AddCXXSummary(cpp_category_sp, 973 lldb_private::formatters::LibStdcppSmartPointerSummaryProvider, 974 "libstdc++ std::weak_ptr summary provider", 975 ConstString("^std::weak_ptr<.+>(( )?&)?$"), stl_summary_flags, 976 true); 977 } 978 979 static void LoadSystemFormatters(lldb::TypeCategoryImplSP cpp_category_sp) { 980 if (!cpp_category_sp) 981 return; 982 983 TypeSummaryImpl::Flags string_flags; 984 string_flags.SetCascades(true) 985 .SetSkipPointers(true) 986 .SetSkipReferences(false) 987 .SetDontShowChildren(true) 988 .SetDontShowValue(false) 989 .SetShowMembersOneLiner(false) 990 .SetHideItemNames(false); 991 992 TypeSummaryImpl::Flags string_array_flags; 993 string_array_flags.SetCascades(true) 994 .SetSkipPointers(true) 995 .SetSkipReferences(false) 996 .SetDontShowChildren(true) 997 .SetDontShowValue(true) 998 .SetShowMembersOneLiner(false) 999 .SetHideItemNames(false); 1000 1001 // FIXME because of a bug in the FormattersContainer we need to add a summary 1002 // for both X* and const X* (<rdar://problem/12717717>) 1003 AddCXXSummary( 1004 cpp_category_sp, lldb_private::formatters::Char8StringSummaryProvider, 1005 "char8_t * summary provider", ConstString("char8_t *"), string_flags); 1006 AddCXXSummary(cpp_category_sp, 1007 lldb_private::formatters::Char8StringSummaryProvider, 1008 "char8_t [] summary provider", 1009 ConstString("char8_t ?\\[[0-9]+\\]"), string_array_flags, true); 1010 1011 AddCXXSummary( 1012 cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider, 1013 "char16_t * summary provider", ConstString("char16_t *"), string_flags); 1014 AddCXXSummary(cpp_category_sp, 1015 lldb_private::formatters::Char16StringSummaryProvider, 1016 "char16_t [] summary provider", 1017 ConstString("char16_t ?\\[[0-9]+\\]"), string_array_flags, true); 1018 1019 AddCXXSummary( 1020 cpp_category_sp, lldb_private::formatters::Char32StringSummaryProvider, 1021 "char32_t * summary provider", ConstString("char32_t *"), string_flags); 1022 AddCXXSummary(cpp_category_sp, 1023 lldb_private::formatters::Char32StringSummaryProvider, 1024 "char32_t [] summary provider", 1025 ConstString("char32_t ?\\[[0-9]+\\]"), string_array_flags, true); 1026 1027 AddCXXSummary( 1028 cpp_category_sp, lldb_private::formatters::WCharStringSummaryProvider, 1029 "wchar_t * summary provider", ConstString("wchar_t *"), string_flags); 1030 AddCXXSummary(cpp_category_sp, 1031 lldb_private::formatters::WCharStringSummaryProvider, 1032 "wchar_t * summary provider", 1033 ConstString("wchar_t ?\\[[0-9]+\\]"), string_array_flags, true); 1034 1035 AddCXXSummary( 1036 cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider, 1037 "unichar * summary provider", ConstString("unichar *"), string_flags); 1038 1039 TypeSummaryImpl::Flags widechar_flags; 1040 widechar_flags.SetDontShowValue(true) 1041 .SetSkipPointers(true) 1042 .SetSkipReferences(false) 1043 .SetCascades(true) 1044 .SetDontShowChildren(true) 1045 .SetHideItemNames(true) 1046 .SetShowMembersOneLiner(false); 1047 1048 AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char8SummaryProvider, 1049 "char8_t summary provider", ConstString("char8_t"), 1050 widechar_flags); 1051 AddCXXSummary( 1052 cpp_category_sp, lldb_private::formatters::Char16SummaryProvider, 1053 "char16_t summary provider", ConstString("char16_t"), widechar_flags); 1054 AddCXXSummary( 1055 cpp_category_sp, lldb_private::formatters::Char32SummaryProvider, 1056 "char32_t summary provider", ConstString("char32_t"), widechar_flags); 1057 AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharSummaryProvider, 1058 "wchar_t summary provider", ConstString("wchar_t"), 1059 widechar_flags); 1060 1061 AddCXXSummary( 1062 cpp_category_sp, lldb_private::formatters::Char16SummaryProvider, 1063 "unichar summary provider", ConstString("unichar"), widechar_flags); 1064 } 1065 1066 std::unique_ptr<Language::TypeScavenger> CPlusPlusLanguage::GetTypeScavenger() { 1067 class CPlusPlusTypeScavenger : public Language::ImageListTypeScavenger { 1068 public: 1069 CompilerType AdjustForInclusion(CompilerType &candidate) override { 1070 LanguageType lang_type(candidate.GetMinimumLanguage()); 1071 if (!Language::LanguageIsC(lang_type) && 1072 !Language::LanguageIsCPlusPlus(lang_type)) 1073 return CompilerType(); 1074 if (candidate.IsTypedefType()) 1075 return candidate.GetTypedefedType(); 1076 return candidate; 1077 } 1078 }; 1079 1080 return std::unique_ptr<TypeScavenger>(new CPlusPlusTypeScavenger()); 1081 } 1082 1083 lldb::TypeCategoryImplSP CPlusPlusLanguage::GetFormatters() { 1084 static llvm::once_flag g_initialize; 1085 static TypeCategoryImplSP g_category; 1086 1087 llvm::call_once(g_initialize, [this]() -> void { 1088 DataVisualization::Categories::GetCategory(ConstString(GetPluginName()), 1089 g_category); 1090 if (g_category) { 1091 LoadLibStdcppFormatters(g_category); 1092 LoadLibCxxFormatters(g_category); 1093 LoadSystemFormatters(g_category); 1094 } 1095 }); 1096 return g_category; 1097 } 1098 1099 HardcodedFormatters::HardcodedSummaryFinder 1100 CPlusPlusLanguage::GetHardcodedSummaries() { 1101 static llvm::once_flag g_initialize; 1102 static ConstString g_vectortypes("VectorTypes"); 1103 static HardcodedFormatters::HardcodedSummaryFinder g_formatters; 1104 1105 llvm::call_once(g_initialize, []() -> void { 1106 g_formatters.push_back( 1107 [](lldb_private::ValueObject &valobj, lldb::DynamicValueType, 1108 FormatManager &) -> TypeSummaryImpl::SharedPointer { 1109 static CXXFunctionSummaryFormat::SharedPointer formatter_sp( 1110 new CXXFunctionSummaryFormat( 1111 TypeSummaryImpl::Flags(), 1112 lldb_private::formatters::CXXFunctionPointerSummaryProvider, 1113 "Function pointer summary provider")); 1114 if (valobj.GetCompilerType().IsFunctionPointerType()) { 1115 return formatter_sp; 1116 } 1117 return nullptr; 1118 }); 1119 g_formatters.push_back( 1120 [](lldb_private::ValueObject &valobj, lldb::DynamicValueType, 1121 FormatManager &fmt_mgr) -> TypeSummaryImpl::SharedPointer { 1122 static CXXFunctionSummaryFormat::SharedPointer formatter_sp( 1123 new CXXFunctionSummaryFormat( 1124 TypeSummaryImpl::Flags() 1125 .SetCascades(true) 1126 .SetDontShowChildren(true) 1127 .SetHideItemNames(true) 1128 .SetShowMembersOneLiner(true) 1129 .SetSkipPointers(true) 1130 .SetSkipReferences(false), 1131 lldb_private::formatters::VectorTypeSummaryProvider, 1132 "vector_type pointer summary provider")); 1133 if (valobj.GetCompilerType().IsVectorType()) { 1134 if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled()) 1135 return formatter_sp; 1136 } 1137 return nullptr; 1138 }); 1139 g_formatters.push_back( 1140 [](lldb_private::ValueObject &valobj, lldb::DynamicValueType, 1141 FormatManager &fmt_mgr) -> TypeSummaryImpl::SharedPointer { 1142 static CXXFunctionSummaryFormat::SharedPointer formatter_sp( 1143 new CXXFunctionSummaryFormat( 1144 TypeSummaryImpl::Flags() 1145 .SetCascades(true) 1146 .SetDontShowChildren(true) 1147 .SetHideItemNames(true) 1148 .SetShowMembersOneLiner(true) 1149 .SetSkipPointers(true) 1150 .SetSkipReferences(false), 1151 lldb_private::formatters::BlockPointerSummaryProvider, 1152 "block pointer summary provider")); 1153 if (valobj.GetCompilerType().IsBlockPointerType()) { 1154 return formatter_sp; 1155 } 1156 return nullptr; 1157 }); 1158 }); 1159 1160 return g_formatters; 1161 } 1162 1163 HardcodedFormatters::HardcodedSyntheticFinder 1164 CPlusPlusLanguage::GetHardcodedSynthetics() { 1165 static llvm::once_flag g_initialize; 1166 static ConstString g_vectortypes("VectorTypes"); 1167 static HardcodedFormatters::HardcodedSyntheticFinder g_formatters; 1168 1169 llvm::call_once(g_initialize, []() -> void { 1170 g_formatters.push_back([](lldb_private::ValueObject &valobj, 1171 lldb::DynamicValueType, FormatManager &fmt_mgr) 1172 -> SyntheticChildren::SharedPointer { 1173 static CXXSyntheticChildren::SharedPointer formatter_sp( 1174 new CXXSyntheticChildren( 1175 SyntheticChildren::Flags() 1176 .SetCascades(true) 1177 .SetSkipPointers(true) 1178 .SetSkipReferences(true) 1179 .SetNonCacheable(true), 1180 "vector_type synthetic children", 1181 lldb_private::formatters::VectorTypeSyntheticFrontEndCreator)); 1182 if (valobj.GetCompilerType().IsVectorType()) { 1183 if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled()) 1184 return formatter_sp; 1185 } 1186 return nullptr; 1187 }); 1188 g_formatters.push_back([](lldb_private::ValueObject &valobj, 1189 lldb::DynamicValueType, FormatManager &fmt_mgr) 1190 -> SyntheticChildren::SharedPointer { 1191 static CXXSyntheticChildren::SharedPointer formatter_sp( 1192 new CXXSyntheticChildren( 1193 SyntheticChildren::Flags() 1194 .SetCascades(true) 1195 .SetSkipPointers(true) 1196 .SetSkipReferences(true) 1197 .SetNonCacheable(true), 1198 "block pointer synthetic children", 1199 lldb_private::formatters::BlockPointerSyntheticFrontEndCreator)); 1200 if (valobj.GetCompilerType().IsBlockPointerType()) { 1201 return formatter_sp; 1202 } 1203 return nullptr; 1204 }); 1205 }); 1206 1207 return g_formatters; 1208 } 1209 1210 bool CPlusPlusLanguage::IsNilReference(ValueObject &valobj) { 1211 if (!Language::LanguageIsCPlusPlus(valobj.GetObjectRuntimeLanguage()) || 1212 !valobj.IsPointerType()) 1213 return false; 1214 bool canReadValue = true; 1215 bool isZero = valobj.GetValueAsUnsigned(0, &canReadValue) == 0; 1216 return canReadValue && isZero; 1217 } 1218 1219 bool CPlusPlusLanguage::IsSourceFile(llvm::StringRef file_path) const { 1220 const auto suffixes = {".cpp", ".cxx", ".c++", ".cc", ".c", 1221 ".h", ".hh", ".hpp", ".hxx", ".h++"}; 1222 for (auto suffix : suffixes) { 1223 if (file_path.endswith_insensitive(suffix)) 1224 return true; 1225 } 1226 1227 // Check if we're in a STL path (where the files usually have no extension 1228 // that we could check for. 1229 return file_path.contains("/usr/include/c++/"); 1230 } 1231