diff options
author | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
commit | 0b57cec536236d46e3dba9bd041533462f33dbb7 (patch) | |
tree | 56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm/tools/clang/lib/Frontend/FrontendActions.cpp | |
parent | 718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff) |
Notes
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Frontend/FrontendActions.cpp')
-rw-r--r-- | contrib/llvm/tools/clang/lib/Frontend/FrontendActions.cpp | 941 |
1 files changed, 0 insertions, 941 deletions
diff --git a/contrib/llvm/tools/clang/lib/Frontend/FrontendActions.cpp b/contrib/llvm/tools/clang/lib/Frontend/FrontendActions.cpp deleted file mode 100644 index e37afae5332a..000000000000 --- a/contrib/llvm/tools/clang/lib/Frontend/FrontendActions.cpp +++ /dev/null @@ -1,941 +0,0 @@ -//===--- FrontendActions.cpp ----------------------------------------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#include "clang/Frontend/FrontendActions.h" -#include "clang/AST/ASTConsumer.h" -#include "clang/Basic/FileManager.h" -#include "clang/Frontend/ASTConsumers.h" -#include "clang/Frontend/CompilerInstance.h" -#include "clang/Frontend/FrontendDiagnostic.h" -#include "clang/Frontend/MultiplexConsumer.h" -#include "clang/Frontend/Utils.h" -#include "clang/Lex/DependencyDirectivesSourceMinimizer.h" -#include "clang/Lex/HeaderSearch.h" -#include "clang/Lex/Preprocessor.h" -#include "clang/Lex/PreprocessorOptions.h" -#include "clang/Sema/TemplateInstCallback.h" -#include "clang/Serialization/ASTReader.h" -#include "clang/Serialization/ASTWriter.h" -#include "llvm/Support/FileSystem.h" -#include "llvm/Support/MemoryBuffer.h" -#include "llvm/Support/Path.h" -#include "llvm/Support/YAMLTraits.h" -#include "llvm/Support/raw_ostream.h" -#include <memory> -#include <system_error> - -using namespace clang; - -namespace { -CodeCompleteConsumer *GetCodeCompletionConsumer(CompilerInstance &CI) { - return CI.hasCodeCompletionConsumer() ? &CI.getCodeCompletionConsumer() - : nullptr; -} - -void EnsureSemaIsCreated(CompilerInstance &CI, FrontendAction &Action) { - if (Action.hasCodeCompletionSupport() && - !CI.getFrontendOpts().CodeCompletionAt.FileName.empty()) - CI.createCodeCompletionConsumer(); - - if (!CI.hasSema()) - CI.createSema(Action.getTranslationUnitKind(), - GetCodeCompletionConsumer(CI)); -} -} // namespace - -//===----------------------------------------------------------------------===// -// Custom Actions -//===----------------------------------------------------------------------===// - -std::unique_ptr<ASTConsumer> -InitOnlyAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - return llvm::make_unique<ASTConsumer>(); -} - -void InitOnlyAction::ExecuteAction() { -} - -//===----------------------------------------------------------------------===// -// AST Consumer Actions -//===----------------------------------------------------------------------===// - -std::unique_ptr<ASTConsumer> -ASTPrintAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - if (std::unique_ptr<raw_ostream> OS = - CI.createDefaultOutputFile(false, InFile)) - return CreateASTPrinter(std::move(OS), CI.getFrontendOpts().ASTDumpFilter); - return nullptr; -} - -std::unique_ptr<ASTConsumer> -ASTDumpAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - const FrontendOptions &Opts = CI.getFrontendOpts(); - return CreateASTDumper(nullptr /*Dump to stdout.*/, Opts.ASTDumpFilter, - Opts.ASTDumpDecls, Opts.ASTDumpAll, - Opts.ASTDumpLookups, Opts.ASTDumpFormat); -} - -std::unique_ptr<ASTConsumer> -ASTDeclListAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - return CreateASTDeclNodeLister(); -} - -std::unique_ptr<ASTConsumer> -ASTViewAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - return CreateASTViewer(); -} - -std::unique_ptr<ASTConsumer> -GeneratePCHAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - std::string Sysroot; - if (!ComputeASTConsumerArguments(CI, /*ref*/ Sysroot)) - return nullptr; - - std::string OutputFile; - std::unique_ptr<raw_pwrite_stream> OS = - CreateOutputFile(CI, InFile, /*ref*/ OutputFile); - if (!OS) - return nullptr; - - if (!CI.getFrontendOpts().RelocatablePCH) - Sysroot.clear(); - - const auto &FrontendOpts = CI.getFrontendOpts(); - auto Buffer = std::make_shared<PCHBuffer>(); - std::vector<std::unique_ptr<ASTConsumer>> Consumers; - Consumers.push_back(llvm::make_unique<PCHGenerator>( - CI.getPreprocessor(), CI.getModuleCache(), OutputFile, Sysroot, Buffer, - FrontendOpts.ModuleFileExtensions, - CI.getPreprocessorOpts().AllowPCHWithCompilerErrors, - FrontendOpts.IncludeTimestamps, +CI.getLangOpts().CacheGeneratedPCH)); - Consumers.push_back(CI.getPCHContainerWriter().CreatePCHContainerGenerator( - CI, InFile, OutputFile, std::move(OS), Buffer)); - - return llvm::make_unique<MultiplexConsumer>(std::move(Consumers)); -} - -bool GeneratePCHAction::ComputeASTConsumerArguments(CompilerInstance &CI, - std::string &Sysroot) { - Sysroot = CI.getHeaderSearchOpts().Sysroot; - if (CI.getFrontendOpts().RelocatablePCH && Sysroot.empty()) { - CI.getDiagnostics().Report(diag::err_relocatable_without_isysroot); - return false; - } - - return true; -} - -std::unique_ptr<llvm::raw_pwrite_stream> -GeneratePCHAction::CreateOutputFile(CompilerInstance &CI, StringRef InFile, - std::string &OutputFile) { - // We use createOutputFile here because this is exposed via libclang, and we - // must disable the RemoveFileOnSignal behavior. - // We use a temporary to avoid race conditions. - std::unique_ptr<raw_pwrite_stream> OS = - CI.createOutputFile(CI.getFrontendOpts().OutputFile, /*Binary=*/true, - /*RemoveFileOnSignal=*/false, InFile, - /*Extension=*/"", /*UseTemporary=*/true); - if (!OS) - return nullptr; - - OutputFile = CI.getFrontendOpts().OutputFile; - return OS; -} - -bool GeneratePCHAction::shouldEraseOutputFiles() { - if (getCompilerInstance().getPreprocessorOpts().AllowPCHWithCompilerErrors) - return false; - return ASTFrontendAction::shouldEraseOutputFiles(); -} - -bool GeneratePCHAction::BeginSourceFileAction(CompilerInstance &CI) { - CI.getLangOpts().CompilingPCH = true; - return true; -} - -std::unique_ptr<ASTConsumer> -GenerateModuleAction::CreateASTConsumer(CompilerInstance &CI, - StringRef InFile) { - std::unique_ptr<raw_pwrite_stream> OS = CreateOutputFile(CI, InFile); - if (!OS) - return nullptr; - - std::string OutputFile = CI.getFrontendOpts().OutputFile; - std::string Sysroot; - - auto Buffer = std::make_shared<PCHBuffer>(); - std::vector<std::unique_ptr<ASTConsumer>> Consumers; - - Consumers.push_back(llvm::make_unique<PCHGenerator>( - CI.getPreprocessor(), CI.getModuleCache(), OutputFile, Sysroot, Buffer, - CI.getFrontendOpts().ModuleFileExtensions, - /*AllowASTWithErrors=*/false, - /*IncludeTimestamps=*/ - +CI.getFrontendOpts().BuildingImplicitModule, - /*ShouldCacheASTInMemory=*/ - +CI.getFrontendOpts().BuildingImplicitModule)); - Consumers.push_back(CI.getPCHContainerWriter().CreatePCHContainerGenerator( - CI, InFile, OutputFile, std::move(OS), Buffer)); - return llvm::make_unique<MultiplexConsumer>(std::move(Consumers)); -} - -bool GenerateModuleFromModuleMapAction::BeginSourceFileAction( - CompilerInstance &CI) { - if (!CI.getLangOpts().Modules) { - CI.getDiagnostics().Report(diag::err_module_build_requires_fmodules); - return false; - } - - return GenerateModuleAction::BeginSourceFileAction(CI); -} - -std::unique_ptr<raw_pwrite_stream> -GenerateModuleFromModuleMapAction::CreateOutputFile(CompilerInstance &CI, - StringRef InFile) { - // If no output file was provided, figure out where this module would go - // in the module cache. - if (CI.getFrontendOpts().OutputFile.empty()) { - StringRef ModuleMapFile = CI.getFrontendOpts().OriginalModuleMap; - if (ModuleMapFile.empty()) - ModuleMapFile = InFile; - - HeaderSearch &HS = CI.getPreprocessor().getHeaderSearchInfo(); - CI.getFrontendOpts().OutputFile = - HS.getCachedModuleFileName(CI.getLangOpts().CurrentModule, - ModuleMapFile); - } - - // We use createOutputFile here because this is exposed via libclang, and we - // must disable the RemoveFileOnSignal behavior. - // We use a temporary to avoid race conditions. - return CI.createOutputFile(CI.getFrontendOpts().OutputFile, /*Binary=*/true, - /*RemoveFileOnSignal=*/false, InFile, - /*Extension=*/"", /*UseTemporary=*/true, - /*CreateMissingDirectories=*/true); -} - -bool GenerateModuleInterfaceAction::BeginSourceFileAction( - CompilerInstance &CI) { - if (!CI.getLangOpts().ModulesTS && !CI.getLangOpts().CPlusPlusModules) { - CI.getDiagnostics().Report(diag::err_module_interface_requires_cpp_modules); - return false; - } - - CI.getLangOpts().setCompilingModule(LangOptions::CMK_ModuleInterface); - - return GenerateModuleAction::BeginSourceFileAction(CI); -} - -std::unique_ptr<raw_pwrite_stream> -GenerateModuleInterfaceAction::CreateOutputFile(CompilerInstance &CI, - StringRef InFile) { - return CI.createDefaultOutputFile(/*Binary=*/true, InFile, "pcm"); -} - -bool GenerateHeaderModuleAction::PrepareToExecuteAction( - CompilerInstance &CI) { - if (!CI.getLangOpts().Modules) { - CI.getDiagnostics().Report(diag::err_header_module_requires_modules); - return false; - } - - auto &Inputs = CI.getFrontendOpts().Inputs; - if (Inputs.empty()) - return GenerateModuleAction::BeginInvocation(CI); - - auto Kind = Inputs[0].getKind(); - - // Convert the header file inputs into a single module input buffer. - SmallString<256> HeaderContents; - ModuleHeaders.reserve(Inputs.size()); - for (const FrontendInputFile &FIF : Inputs) { - // FIXME: We should support re-compiling from an AST file. - if (FIF.getKind().getFormat() != InputKind::Source || !FIF.isFile()) { - CI.getDiagnostics().Report(diag::err_module_header_file_not_found) - << (FIF.isFile() ? FIF.getFile() - : FIF.getBuffer()->getBufferIdentifier()); - return true; - } - - HeaderContents += "#include \""; - HeaderContents += FIF.getFile(); - HeaderContents += "\"\n"; - ModuleHeaders.push_back(FIF.getFile()); - } - Buffer = llvm::MemoryBuffer::getMemBufferCopy( - HeaderContents, Module::getModuleInputBufferName()); - - // Set that buffer up as our "real" input. - Inputs.clear(); - Inputs.push_back(FrontendInputFile(Buffer.get(), Kind, /*IsSystem*/false)); - - return GenerateModuleAction::PrepareToExecuteAction(CI); -} - -bool GenerateHeaderModuleAction::BeginSourceFileAction( - CompilerInstance &CI) { - CI.getLangOpts().setCompilingModule(LangOptions::CMK_HeaderModule); - - // Synthesize a Module object for the given headers. - auto &HS = CI.getPreprocessor().getHeaderSearchInfo(); - SmallVector<Module::Header, 16> Headers; - for (StringRef Name : ModuleHeaders) { - const DirectoryLookup *CurDir = nullptr; - const FileEntry *FE = HS.LookupFile( - Name, SourceLocation(), /*Angled*/ false, nullptr, CurDir, - None, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr); - if (!FE) { - CI.getDiagnostics().Report(diag::err_module_header_file_not_found) - << Name; - continue; - } - Headers.push_back({Name, FE}); - } - HS.getModuleMap().createHeaderModule(CI.getLangOpts().CurrentModule, Headers); - - return GenerateModuleAction::BeginSourceFileAction(CI); -} - -std::unique_ptr<raw_pwrite_stream> -GenerateHeaderModuleAction::CreateOutputFile(CompilerInstance &CI, - StringRef InFile) { - return CI.createDefaultOutputFile(/*Binary=*/true, InFile, "pcm"); -} - -SyntaxOnlyAction::~SyntaxOnlyAction() { -} - -std::unique_ptr<ASTConsumer> -SyntaxOnlyAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - return llvm::make_unique<ASTConsumer>(); -} - -std::unique_ptr<ASTConsumer> -DumpModuleInfoAction::CreateASTConsumer(CompilerInstance &CI, - StringRef InFile) { - return llvm::make_unique<ASTConsumer>(); -} - -std::unique_ptr<ASTConsumer> -VerifyPCHAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - return llvm::make_unique<ASTConsumer>(); -} - -void VerifyPCHAction::ExecuteAction() { - CompilerInstance &CI = getCompilerInstance(); - bool Preamble = CI.getPreprocessorOpts().PrecompiledPreambleBytes.first != 0; - const std::string &Sysroot = CI.getHeaderSearchOpts().Sysroot; - std::unique_ptr<ASTReader> Reader(new ASTReader( - CI.getPreprocessor(), CI.getModuleCache(), &CI.getASTContext(), - CI.getPCHContainerReader(), CI.getFrontendOpts().ModuleFileExtensions, - Sysroot.empty() ? "" : Sysroot.c_str(), - /*DisableValidation*/ false, - /*AllowPCHWithCompilerErrors*/ false, - /*AllowConfigurationMismatch*/ true, - /*ValidateSystemInputs*/ true)); - - Reader->ReadAST(getCurrentFile(), - Preamble ? serialization::MK_Preamble - : serialization::MK_PCH, - SourceLocation(), - ASTReader::ARR_ConfigurationMismatch); -} - -namespace { -struct TemplightEntry { - std::string Name; - std::string Kind; - std::string Event; - std::string DefinitionLocation; - std::string PointOfInstantiation; -}; -} // namespace - -namespace llvm { -namespace yaml { -template <> struct MappingTraits<TemplightEntry> { - static void mapping(IO &io, TemplightEntry &fields) { - io.mapRequired("name", fields.Name); - io.mapRequired("kind", fields.Kind); - io.mapRequired("event", fields.Event); - io.mapRequired("orig", fields.DefinitionLocation); - io.mapRequired("poi", fields.PointOfInstantiation); - } -}; -} // namespace yaml -} // namespace llvm - -namespace { -class DefaultTemplateInstCallback : public TemplateInstantiationCallback { - using CodeSynthesisContext = Sema::CodeSynthesisContext; - -public: - void initialize(const Sema &) override {} - - void finalize(const Sema &) override {} - - void atTemplateBegin(const Sema &TheSema, - const CodeSynthesisContext &Inst) override { - displayTemplightEntry<true>(llvm::outs(), TheSema, Inst); - } - - void atTemplateEnd(const Sema &TheSema, - const CodeSynthesisContext &Inst) override { - displayTemplightEntry<false>(llvm::outs(), TheSema, Inst); - } - -private: - static std::string toString(CodeSynthesisContext::SynthesisKind Kind) { - switch (Kind) { - case CodeSynthesisContext::TemplateInstantiation: - return "TemplateInstantiation"; - case CodeSynthesisContext::DefaultTemplateArgumentInstantiation: - return "DefaultTemplateArgumentInstantiation"; - case CodeSynthesisContext::DefaultFunctionArgumentInstantiation: - return "DefaultFunctionArgumentInstantiation"; - case CodeSynthesisContext::ExplicitTemplateArgumentSubstitution: - return "ExplicitTemplateArgumentSubstitution"; - case CodeSynthesisContext::DeducedTemplateArgumentSubstitution: - return "DeducedTemplateArgumentSubstitution"; - case CodeSynthesisContext::PriorTemplateArgumentSubstitution: - return "PriorTemplateArgumentSubstitution"; - case CodeSynthesisContext::DefaultTemplateArgumentChecking: - return "DefaultTemplateArgumentChecking"; - case CodeSynthesisContext::ExceptionSpecEvaluation: - return "ExceptionSpecEvaluation"; - case CodeSynthesisContext::ExceptionSpecInstantiation: - return "ExceptionSpecInstantiation"; - case CodeSynthesisContext::DeclaringSpecialMember: - return "DeclaringSpecialMember"; - case CodeSynthesisContext::DefiningSynthesizedFunction: - return "DefiningSynthesizedFunction"; - case CodeSynthesisContext::Memoization: - return "Memoization"; - } - return ""; - } - - template <bool BeginInstantiation> - static void displayTemplightEntry(llvm::raw_ostream &Out, const Sema &TheSema, - const CodeSynthesisContext &Inst) { - std::string YAML; - { - llvm::raw_string_ostream OS(YAML); - llvm::yaml::Output YO(OS); - TemplightEntry Entry = - getTemplightEntry<BeginInstantiation>(TheSema, Inst); - llvm::yaml::EmptyContext Context; - llvm::yaml::yamlize(YO, Entry, true, Context); - } - Out << "---" << YAML << "\n"; - } - - template <bool BeginInstantiation> - static TemplightEntry getTemplightEntry(const Sema &TheSema, - const CodeSynthesisContext &Inst) { - TemplightEntry Entry; - Entry.Kind = toString(Inst.Kind); - Entry.Event = BeginInstantiation ? "Begin" : "End"; - if (auto *NamedTemplate = dyn_cast_or_null<NamedDecl>(Inst.Entity)) { - llvm::raw_string_ostream OS(Entry.Name); - NamedTemplate->getNameForDiagnostic(OS, TheSema.getLangOpts(), true); - const PresumedLoc DefLoc = - TheSema.getSourceManager().getPresumedLoc(Inst.Entity->getLocation()); - if(!DefLoc.isInvalid()) - Entry.DefinitionLocation = std::string(DefLoc.getFilename()) + ":" + - std::to_string(DefLoc.getLine()) + ":" + - std::to_string(DefLoc.getColumn()); - } - const PresumedLoc PoiLoc = - TheSema.getSourceManager().getPresumedLoc(Inst.PointOfInstantiation); - if (!PoiLoc.isInvalid()) { - Entry.PointOfInstantiation = std::string(PoiLoc.getFilename()) + ":" + - std::to_string(PoiLoc.getLine()) + ":" + - std::to_string(PoiLoc.getColumn()); - } - return Entry; - } -}; -} // namespace - -std::unique_ptr<ASTConsumer> -TemplightDumpAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { - return llvm::make_unique<ASTConsumer>(); -} - -void TemplightDumpAction::ExecuteAction() { - CompilerInstance &CI = getCompilerInstance(); - - // This part is normally done by ASTFrontEndAction, but needs to happen - // before Templight observers can be created - // FIXME: Move the truncation aspect of this into Sema, we delayed this till - // here so the source manager would be initialized. - EnsureSemaIsCreated(CI, *this); - - CI.getSema().TemplateInstCallbacks.push_back( - llvm::make_unique<DefaultTemplateInstCallback>()); - ASTFrontendAction::ExecuteAction(); -} - -namespace { - /// AST reader listener that dumps module information for a module - /// file. - class DumpModuleInfoListener : public ASTReaderListener { - llvm::raw_ostream &Out; - - public: - DumpModuleInfoListener(llvm::raw_ostream &Out) : Out(Out) { } - -#define DUMP_BOOLEAN(Value, Text) \ - Out.indent(4) << Text << ": " << (Value? "Yes" : "No") << "\n" - - bool ReadFullVersionInformation(StringRef FullVersion) override { - Out.indent(2) - << "Generated by " - << (FullVersion == getClangFullRepositoryVersion()? "this" - : "a different") - << " Clang: " << FullVersion << "\n"; - return ASTReaderListener::ReadFullVersionInformation(FullVersion); - } - - void ReadModuleName(StringRef ModuleName) override { - Out.indent(2) << "Module name: " << ModuleName << "\n"; - } - void ReadModuleMapFile(StringRef ModuleMapPath) override { - Out.indent(2) << "Module map file: " << ModuleMapPath << "\n"; - } - - bool ReadLanguageOptions(const LangOptions &LangOpts, bool Complain, - bool AllowCompatibleDifferences) override { - Out.indent(2) << "Language options:\n"; -#define LANGOPT(Name, Bits, Default, Description) \ - DUMP_BOOLEAN(LangOpts.Name, Description); -#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ - Out.indent(4) << Description << ": " \ - << static_cast<unsigned>(LangOpts.get##Name()) << "\n"; -#define VALUE_LANGOPT(Name, Bits, Default, Description) \ - Out.indent(4) << Description << ": " << LangOpts.Name << "\n"; -#define BENIGN_LANGOPT(Name, Bits, Default, Description) -#define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) -#include "clang/Basic/LangOptions.def" - - if (!LangOpts.ModuleFeatures.empty()) { - Out.indent(4) << "Module features:\n"; - for (StringRef Feature : LangOpts.ModuleFeatures) - Out.indent(6) << Feature << "\n"; - } - - return false; - } - - bool ReadTargetOptions(const TargetOptions &TargetOpts, bool Complain, - bool AllowCompatibleDifferences) override { - Out.indent(2) << "Target options:\n"; - Out.indent(4) << " Triple: " << TargetOpts.Triple << "\n"; - Out.indent(4) << " CPU: " << TargetOpts.CPU << "\n"; - Out.indent(4) << " ABI: " << TargetOpts.ABI << "\n"; - - if (!TargetOpts.FeaturesAsWritten.empty()) { - Out.indent(4) << "Target features:\n"; - for (unsigned I = 0, N = TargetOpts.FeaturesAsWritten.size(); - I != N; ++I) { - Out.indent(6) << TargetOpts.FeaturesAsWritten[I] << "\n"; - } - } - - return false; - } - - bool ReadDiagnosticOptions(IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts, - bool Complain) override { - Out.indent(2) << "Diagnostic options:\n"; -#define DIAGOPT(Name, Bits, Default) DUMP_BOOLEAN(DiagOpts->Name, #Name); -#define ENUM_DIAGOPT(Name, Type, Bits, Default) \ - Out.indent(4) << #Name << ": " << DiagOpts->get##Name() << "\n"; -#define VALUE_DIAGOPT(Name, Bits, Default) \ - Out.indent(4) << #Name << ": " << DiagOpts->Name << "\n"; -#include "clang/Basic/DiagnosticOptions.def" - - Out.indent(4) << "Diagnostic flags:\n"; - for (const std::string &Warning : DiagOpts->Warnings) - Out.indent(6) << "-W" << Warning << "\n"; - for (const std::string &Remark : DiagOpts->Remarks) - Out.indent(6) << "-R" << Remark << "\n"; - - return false; - } - - bool ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts, - StringRef SpecificModuleCachePath, - bool Complain) override { - Out.indent(2) << "Header search options:\n"; - Out.indent(4) << "System root [-isysroot=]: '" << HSOpts.Sysroot << "'\n"; - Out.indent(4) << "Resource dir [ -resource-dir=]: '" << HSOpts.ResourceDir << "'\n"; - Out.indent(4) << "Module Cache: '" << SpecificModuleCachePath << "'\n"; - DUMP_BOOLEAN(HSOpts.UseBuiltinIncludes, - "Use builtin include directories [-nobuiltininc]"); - DUMP_BOOLEAN(HSOpts.UseStandardSystemIncludes, - "Use standard system include directories [-nostdinc]"); - DUMP_BOOLEAN(HSOpts.UseStandardCXXIncludes, - "Use standard C++ include directories [-nostdinc++]"); - DUMP_BOOLEAN(HSOpts.UseLibcxx, - "Use libc++ (rather than libstdc++) [-stdlib=]"); - return false; - } - - bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts, - bool Complain, - std::string &SuggestedPredefines) override { - Out.indent(2) << "Preprocessor options:\n"; - DUMP_BOOLEAN(PPOpts.UsePredefines, - "Uses compiler/target-specific predefines [-undef]"); - DUMP_BOOLEAN(PPOpts.DetailedRecord, - "Uses detailed preprocessing record (for indexing)"); - - if (!PPOpts.Macros.empty()) { - Out.indent(4) << "Predefined macros:\n"; - } - - for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator - I = PPOpts.Macros.begin(), IEnd = PPOpts.Macros.end(); - I != IEnd; ++I) { - Out.indent(6); - if (I->second) - Out << "-U"; - else - Out << "-D"; - Out << I->first << "\n"; - } - return false; - } - - /// Indicates that a particular module file extension has been read. - void readModuleFileExtension( - const ModuleFileExtensionMetadata &Metadata) override { - Out.indent(2) << "Module file extension '" - << Metadata.BlockName << "' " << Metadata.MajorVersion - << "." << Metadata.MinorVersion; - if (!Metadata.UserInfo.empty()) { - Out << ": "; - Out.write_escaped(Metadata.UserInfo); - } - - Out << "\n"; - } - - /// Tells the \c ASTReaderListener that we want to receive the - /// input files of the AST file via \c visitInputFile. - bool needsInputFileVisitation() override { return true; } - - /// Tells the \c ASTReaderListener that we want to receive the - /// input files of the AST file via \c visitInputFile. - bool needsSystemInputFileVisitation() override { return true; } - - /// Indicates that the AST file contains particular input file. - /// - /// \returns true to continue receiving the next input file, false to stop. - bool visitInputFile(StringRef Filename, bool isSystem, - bool isOverridden, bool isExplicitModule) override { - - Out.indent(2) << "Input file: " << Filename; - - if (isSystem || isOverridden || isExplicitModule) { - Out << " ["; - if (isSystem) { - Out << "System"; - if (isOverridden || isExplicitModule) - Out << ", "; - } - if (isOverridden) { - Out << "Overridden"; - if (isExplicitModule) - Out << ", "; - } - if (isExplicitModule) - Out << "ExplicitModule"; - - Out << "]"; - } - - Out << "\n"; - - return true; - } - - /// Returns true if this \c ASTReaderListener wants to receive the - /// imports of the AST file via \c visitImport, false otherwise. - bool needsImportVisitation() const override { return true; } - - /// If needsImportVisitation returns \c true, this is called for each - /// AST file imported by this AST file. - void visitImport(StringRef ModuleName, StringRef Filename) override { - Out.indent(2) << "Imports module '" << ModuleName - << "': " << Filename.str() << "\n"; - } -#undef DUMP_BOOLEAN - }; -} - -bool DumpModuleInfoAction::BeginInvocation(CompilerInstance &CI) { - // The Object file reader also supports raw ast files and there is no point in - // being strict about the module file format in -module-file-info mode. - CI.getHeaderSearchOpts().ModuleFormat = "obj"; - return true; -} - -void DumpModuleInfoAction::ExecuteAction() { - // Set up the output file. - std::unique_ptr<llvm::raw_fd_ostream> OutFile; - StringRef OutputFileName = getCompilerInstance().getFrontendOpts().OutputFile; - if (!OutputFileName.empty() && OutputFileName != "-") { - std::error_code EC; - OutFile.reset(new llvm::raw_fd_ostream(OutputFileName.str(), EC, - llvm::sys::fs::F_Text)); - } - llvm::raw_ostream &Out = OutFile.get()? *OutFile.get() : llvm::outs(); - - Out << "Information for module file '" << getCurrentFile() << "':\n"; - auto &FileMgr = getCompilerInstance().getFileManager(); - auto Buffer = FileMgr.getBufferForFile(getCurrentFile()); - StringRef Magic = (*Buffer)->getMemBufferRef().getBuffer(); - bool IsRaw = (Magic.size() >= 4 && Magic[0] == 'C' && Magic[1] == 'P' && - Magic[2] == 'C' && Magic[3] == 'H'); - Out << " Module format: " << (IsRaw ? "raw" : "obj") << "\n"; - - Preprocessor &PP = getCompilerInstance().getPreprocessor(); - DumpModuleInfoListener Listener(Out); - HeaderSearchOptions &HSOpts = - PP.getHeaderSearchInfo().getHeaderSearchOpts(); - ASTReader::readASTFileControlBlock( - getCurrentFile(), FileMgr, getCompilerInstance().getPCHContainerReader(), - /*FindModuleFileExtensions=*/true, Listener, - HSOpts.ModulesValidateDiagnosticOptions); -} - -//===----------------------------------------------------------------------===// -// Preprocessor Actions -//===----------------------------------------------------------------------===// - -void DumpRawTokensAction::ExecuteAction() { - Preprocessor &PP = getCompilerInstance().getPreprocessor(); - SourceManager &SM = PP.getSourceManager(); - - // Start lexing the specified input file. - const llvm::MemoryBuffer *FromFile = SM.getBuffer(SM.getMainFileID()); - Lexer RawLex(SM.getMainFileID(), FromFile, SM, PP.getLangOpts()); - RawLex.SetKeepWhitespaceMode(true); - - Token RawTok; - RawLex.LexFromRawLexer(RawTok); - while (RawTok.isNot(tok::eof)) { - PP.DumpToken(RawTok, true); - llvm::errs() << "\n"; - RawLex.LexFromRawLexer(RawTok); - } -} - -void DumpTokensAction::ExecuteAction() { - Preprocessor &PP = getCompilerInstance().getPreprocessor(); - // Start preprocessing the specified input file. - Token Tok; - PP.EnterMainSourceFile(); - do { - PP.Lex(Tok); - PP.DumpToken(Tok, true); - llvm::errs() << "\n"; - } while (Tok.isNot(tok::eof)); -} - -void PreprocessOnlyAction::ExecuteAction() { - Preprocessor &PP = getCompilerInstance().getPreprocessor(); - - // Ignore unknown pragmas. - PP.IgnorePragmas(); - - Token Tok; - // Start parsing the specified input file. - PP.EnterMainSourceFile(); - do { - PP.Lex(Tok); - } while (Tok.isNot(tok::eof)); -} - -void PrintPreprocessedAction::ExecuteAction() { - CompilerInstance &CI = getCompilerInstance(); - // Output file may need to be set to 'Binary', to avoid converting Unix style - // line feeds (<LF>) to Microsoft style line feeds (<CR><LF>). - // - // Look to see what type of line endings the file uses. If there's a - // CRLF, then we won't open the file up in binary mode. If there is - // just an LF or CR, then we will open the file up in binary mode. - // In this fashion, the output format should match the input format, unless - // the input format has inconsistent line endings. - // - // This should be a relatively fast operation since most files won't have - // all of their source code on a single line. However, that is still a - // concern, so if we scan for too long, we'll just assume the file should - // be opened in binary mode. - bool BinaryMode = true; - bool InvalidFile = false; - const SourceManager& SM = CI.getSourceManager(); - const llvm::MemoryBuffer *Buffer = SM.getBuffer(SM.getMainFileID(), - &InvalidFile); - if (!InvalidFile) { - const char *cur = Buffer->getBufferStart(); - const char *end = Buffer->getBufferEnd(); - const char *next = (cur != end) ? cur + 1 : end; - - // Limit ourselves to only scanning 256 characters into the source - // file. This is mostly a sanity check in case the file has no - // newlines whatsoever. - if (end - cur > 256) end = cur + 256; - - while (next < end) { - if (*cur == 0x0D) { // CR - if (*next == 0x0A) // CRLF - BinaryMode = false; - - break; - } else if (*cur == 0x0A) // LF - break; - - ++cur; - ++next; - } - } - - std::unique_ptr<raw_ostream> OS = - CI.createDefaultOutputFile(BinaryMode, getCurrentFileOrBufferName()); - if (!OS) return; - - // If we're preprocessing a module map, start by dumping the contents of the - // module itself before switching to the input buffer. - auto &Input = getCurrentInput(); - if (Input.getKind().getFormat() == InputKind::ModuleMap) { - if (Input.isFile()) { - (*OS) << "# 1 \""; - OS->write_escaped(Input.getFile()); - (*OS) << "\"\n"; - } - getCurrentModule()->print(*OS); - (*OS) << "#pragma clang module contents\n"; - } - - DoPrintPreprocessedInput(CI.getPreprocessor(), OS.get(), - CI.getPreprocessorOutputOpts()); -} - -void PrintPreambleAction::ExecuteAction() { - switch (getCurrentFileKind().getLanguage()) { - case InputKind::C: - case InputKind::CXX: - case InputKind::ObjC: - case InputKind::ObjCXX: - case InputKind::OpenCL: - case InputKind::CUDA: - case InputKind::HIP: - break; - - case InputKind::Unknown: - case InputKind::Asm: - case InputKind::LLVM_IR: - case InputKind::RenderScript: - // We can't do anything with these. - return; - } - - // We don't expect to find any #include directives in a preprocessed input. - if (getCurrentFileKind().isPreprocessed()) - return; - - CompilerInstance &CI = getCompilerInstance(); - auto Buffer = CI.getFileManager().getBufferForFile(getCurrentFile()); - if (Buffer) { - unsigned Preamble = - Lexer::ComputePreamble((*Buffer)->getBuffer(), CI.getLangOpts()).Size; - llvm::outs().write((*Buffer)->getBufferStart(), Preamble); - } -} - -void DumpCompilerOptionsAction::ExecuteAction() { - CompilerInstance &CI = getCompilerInstance(); - std::unique_ptr<raw_ostream> OSP = - CI.createDefaultOutputFile(false, getCurrentFile()); - if (!OSP) - return; - - raw_ostream &OS = *OSP; - const Preprocessor &PP = CI.getPreprocessor(); - const LangOptions &LangOpts = PP.getLangOpts(); - - // FIXME: Rather than manually format the JSON (which is awkward due to - // needing to remove trailing commas), this should make use of a JSON library. - // FIXME: Instead of printing enums as an integral value and specifying the - // type as a separate field, use introspection to print the enumerator. - - OS << "{\n"; - OS << "\n\"features\" : [\n"; - { - llvm::SmallString<128> Str; -#define FEATURE(Name, Predicate) \ - ("\t{\"" #Name "\" : " + llvm::Twine(Predicate ? "true" : "false") + "},\n") \ - .toVector(Str); -#include "clang/Basic/Features.def" -#undef FEATURE - // Remove the newline and comma from the last entry to ensure this remains - // valid JSON. - OS << Str.substr(0, Str.size() - 2); - } - OS << "\n],\n"; - - OS << "\n\"extensions\" : [\n"; - { - llvm::SmallString<128> Str; -#define EXTENSION(Name, Predicate) \ - ("\t{\"" #Name "\" : " + llvm::Twine(Predicate ? "true" : "false") + "},\n") \ - .toVector(Str); -#include "clang/Basic/Features.def" -#undef EXTENSION - // Remove the newline and comma from the last entry to ensure this remains - // valid JSON. - OS << Str.substr(0, Str.size() - 2); - } - OS << "\n]\n"; - - OS << "}"; -} - -void PrintDependencyDirectivesSourceMinimizerAction::ExecuteAction() { - CompilerInstance &CI = getCompilerInstance(); - SourceManager &SM = CI.getPreprocessor().getSourceManager(); - const llvm::MemoryBuffer *FromFile = SM.getBuffer(SM.getMainFileID()); - - llvm::SmallString<1024> Output; - llvm::SmallVector<minimize_source_to_dependency_directives::Token, 32> Toks; - if (minimizeSourceToDependencyDirectives( - FromFile->getBuffer(), Output, Toks, &CI.getDiagnostics(), - SM.getLocForStartOfFile(SM.getMainFileID()))) { - assert(CI.getDiagnostics().hasErrorOccurred() && - "no errors reported for failure"); - - // Preprocess the source when verifying the diagnostics to capture the - // 'expected' comments. - if (CI.getDiagnosticOpts().VerifyDiagnostics) { - // Make sure we don't emit new diagnostics! - CI.getDiagnostics().setSuppressAllDiagnostics(); - Preprocessor &PP = getCompilerInstance().getPreprocessor(); - PP.EnterMainSourceFile(); - Token Tok; - do { - PP.Lex(Tok); - } while (Tok.isNot(tok::eof)); - } - return; - } - llvm::outs() << Output; -} |