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| author | 2020-08-03 15:06:44 +0000 | |
|---|---|---|
| committer | 2020-08-03 15:06:44 +0000 | |
| commit | b64793999546ed8adebaeebd9d8345d18db8927d (patch) | |
| tree | 4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/tools/clang/lib/Tooling/Tooling.cpp | |
| parent | Add support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff) | |
| download | wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip | |
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/tools/clang/lib/Tooling/Tooling.cpp')
| -rw-r--r-- | gnu/llvm/tools/clang/lib/Tooling/Tooling.cpp | 611 |
1 files changed, 0 insertions, 611 deletions
diff --git a/gnu/llvm/tools/clang/lib/Tooling/Tooling.cpp b/gnu/llvm/tools/clang/lib/Tooling/Tooling.cpp deleted file mode 100644 index 63aa64a5330..00000000000 --- a/gnu/llvm/tools/clang/lib/Tooling/Tooling.cpp +++ /dev/null @@ -1,611 +0,0 @@ -//===- Tooling.cpp - Running clang standalone tools -----------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements functions to run clang tools standalone instead -// of running them as a plugin. -// -//===----------------------------------------------------------------------===// - -#include "clang/Tooling/Tooling.h" -#include "clang/Basic/Diagnostic.h" -#include "clang/Basic/DiagnosticIDs.h" -#include "clang/Basic/DiagnosticOptions.h" -#include "clang/Basic/FileManager.h" -#include "clang/Basic/FileSystemOptions.h" -#include "clang/Basic/LLVM.h" -#include "clang/Driver/Compilation.h" -#include "clang/Driver/Driver.h" -#include "clang/Driver/Job.h" -#include "clang/Driver/Options.h" -#include "clang/Driver/Tool.h" -#include "clang/Driver/ToolChain.h" -#include "clang/Frontend/ASTUnit.h" -#include "clang/Frontend/CompilerInstance.h" -#include "clang/Frontend/CompilerInvocation.h" -#include "clang/Frontend/FrontendDiagnostic.h" -#include "clang/Frontend/FrontendOptions.h" -#include "clang/Frontend/TextDiagnosticPrinter.h" -#include "clang/Lex/HeaderSearchOptions.h" -#include "clang/Lex/PreprocessorOptions.h" -#include "clang/Tooling/ArgumentsAdjusters.h" -#include "clang/Tooling/CompilationDatabase.h" -#include "llvm/ADT/ArrayRef.h" -#include "llvm/ADT/IntrusiveRefCntPtr.h" -#include "llvm/ADT/SmallString.h" -#include "llvm/ADT/StringRef.h" -#include "llvm/ADT/Twine.h" -#include "llvm/Option/ArgList.h" -#include "llvm/Option/OptTable.h" -#include "llvm/Option/Option.h" -#include "llvm/Support/Casting.h" -#include "llvm/Support/Debug.h" -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Support/FileSystem.h" -#include "llvm/Support/Host.h" -#include "llvm/Support/MemoryBuffer.h" -#include "llvm/Support/Path.h" -#include "llvm/Support/VirtualFileSystem.h" -#include "llvm/Support/raw_ostream.h" -#include <cassert> -#include <cstring> -#include <memory> -#include <string> -#include <system_error> -#include <utility> -#include <vector> - -#define DEBUG_TYPE "clang-tooling" - -using namespace clang; -using namespace tooling; - -ToolAction::~ToolAction() = default; - -FrontendActionFactory::~FrontendActionFactory() = default; - -// FIXME: This file contains structural duplication with other parts of the -// code that sets up a compiler to run tools on it, and we should refactor -// it to be based on the same framework. - -/// Builds a clang driver initialized for running clang tools. -static driver::Driver * -newDriver(DiagnosticsEngine *Diagnostics, const char *BinaryName, - IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS) { - driver::Driver *CompilerDriver = - new driver::Driver(BinaryName, llvm::sys::getDefaultTargetTriple(), - *Diagnostics, std::move(VFS)); - CompilerDriver->setTitle("clang_based_tool"); - return CompilerDriver; -} - -/// Retrieves the clang CC1 specific flags out of the compilation's jobs. -/// -/// Returns nullptr on error. -static const llvm::opt::ArgStringList *getCC1Arguments( - DiagnosticsEngine *Diagnostics, driver::Compilation *Compilation) { - // We expect to get back exactly one Command job, if we didn't something - // failed. Extract that job from the Compilation. - const driver::JobList &Jobs = Compilation->getJobs(); - if (Jobs.size() != 1 || !isa<driver::Command>(*Jobs.begin())) { - SmallString<256> error_msg; - llvm::raw_svector_ostream error_stream(error_msg); - Jobs.Print(error_stream, "; ", true); - Diagnostics->Report(diag::err_fe_expected_compiler_job) - << error_stream.str(); - return nullptr; - } - - // The one job we find should be to invoke clang again. - const auto &Cmd = cast<driver::Command>(*Jobs.begin()); - if (StringRef(Cmd.getCreator().getName()) != "clang") { - Diagnostics->Report(diag::err_fe_expected_clang_command); - return nullptr; - } - - return &Cmd.getArguments(); -} - -namespace clang { -namespace tooling { - -/// Returns a clang build invocation initialized from the CC1 flags. -CompilerInvocation *newInvocation( - DiagnosticsEngine *Diagnostics, const llvm::opt::ArgStringList &CC1Args) { - assert(!CC1Args.empty() && "Must at least contain the program name!"); - CompilerInvocation *Invocation = new CompilerInvocation; - CompilerInvocation::CreateFromArgs( - *Invocation, CC1Args.data() + 1, CC1Args.data() + CC1Args.size(), - *Diagnostics); - Invocation->getFrontendOpts().DisableFree = false; - Invocation->getCodeGenOpts().DisableFree = false; - return Invocation; -} - -bool runToolOnCode(FrontendAction *ToolAction, const Twine &Code, - const Twine &FileName, - std::shared_ptr<PCHContainerOperations> PCHContainerOps) { - return runToolOnCodeWithArgs(ToolAction, Code, std::vector<std::string>(), - FileName, "clang-tool", - std::move(PCHContainerOps)); -} - -} // namespace tooling -} // namespace clang - -static std::vector<std::string> -getSyntaxOnlyToolArgs(const Twine &ToolName, - const std::vector<std::string> &ExtraArgs, - StringRef FileName) { - std::vector<std::string> Args; - Args.push_back(ToolName.str()); - Args.push_back("-fsyntax-only"); - Args.insert(Args.end(), ExtraArgs.begin(), ExtraArgs.end()); - Args.push_back(FileName.str()); - return Args; -} - -namespace clang { -namespace tooling { - -bool runToolOnCodeWithArgs( - FrontendAction *ToolAction, const Twine &Code, - llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS, - const std::vector<std::string> &Args, const Twine &FileName, - const Twine &ToolName, - std::shared_ptr<PCHContainerOperations> PCHContainerOps) { - SmallString<16> FileNameStorage; - StringRef FileNameRef = FileName.toNullTerminatedStringRef(FileNameStorage); - - llvm::IntrusiveRefCntPtr<FileManager> Files( - new FileManager(FileSystemOptions(), VFS)); - ArgumentsAdjuster Adjuster = getClangStripDependencyFileAdjuster(); - ToolInvocation Invocation( - getSyntaxOnlyToolArgs(ToolName, Adjuster(Args, FileNameRef), FileNameRef), - ToolAction, Files.get(), - std::move(PCHContainerOps)); - return Invocation.run(); -} - -bool runToolOnCodeWithArgs( - FrontendAction *ToolAction, const Twine &Code, - const std::vector<std::string> &Args, const Twine &FileName, - const Twine &ToolName, - std::shared_ptr<PCHContainerOperations> PCHContainerOps, - const FileContentMappings &VirtualMappedFiles) { - llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem> OverlayFileSystem( - new llvm::vfs::OverlayFileSystem(llvm::vfs::getRealFileSystem())); - llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> InMemoryFileSystem( - new llvm::vfs::InMemoryFileSystem); - OverlayFileSystem->pushOverlay(InMemoryFileSystem); - - SmallString<1024> CodeStorage; - InMemoryFileSystem->addFile(FileName, 0, - llvm::MemoryBuffer::getMemBuffer( - Code.toNullTerminatedStringRef(CodeStorage))); - - for (auto &FilenameWithContent : VirtualMappedFiles) { - InMemoryFileSystem->addFile( - FilenameWithContent.first, 0, - llvm::MemoryBuffer::getMemBuffer(FilenameWithContent.second)); - } - - return runToolOnCodeWithArgs(ToolAction, Code, OverlayFileSystem, Args, - FileName, ToolName); -} - -llvm::Expected<std::string> getAbsolutePath(llvm::vfs::FileSystem &FS, - StringRef File) { - StringRef RelativePath(File); - // FIXME: Should '.\\' be accepted on Win32? - if (RelativePath.startswith("./")) { - RelativePath = RelativePath.substr(strlen("./")); - } - - SmallString<1024> AbsolutePath = RelativePath; - if (auto EC = FS.makeAbsolute(AbsolutePath)) - return llvm::errorCodeToError(EC); - llvm::sys::path::native(AbsolutePath); - return AbsolutePath.str(); -} - -std::string getAbsolutePath(StringRef File) { - return llvm::cantFail(getAbsolutePath(*llvm::vfs::getRealFileSystem(), File)); -} - -void addTargetAndModeForProgramName(std::vector<std::string> &CommandLine, - StringRef InvokedAs) { - if (!CommandLine.empty() && !InvokedAs.empty()) { - bool AlreadyHasTarget = false; - bool AlreadyHasMode = false; - // Skip CommandLine[0]. - for (auto Token = ++CommandLine.begin(); Token != CommandLine.end(); - ++Token) { - StringRef TokenRef(*Token); - AlreadyHasTarget |= - (TokenRef == "-target" || TokenRef.startswith("-target=")); - AlreadyHasMode |= (TokenRef == "--driver-mode" || - TokenRef.startswith("--driver-mode=")); - } - auto TargetMode = - driver::ToolChain::getTargetAndModeFromProgramName(InvokedAs); - if (!AlreadyHasMode && TargetMode.DriverMode) { - CommandLine.insert(++CommandLine.begin(), TargetMode.DriverMode); - } - if (!AlreadyHasTarget && TargetMode.TargetIsValid) { - CommandLine.insert(++CommandLine.begin(), {"-target", - TargetMode.TargetPrefix}); - } - } -} - -} // namespace tooling -} // namespace clang - -namespace { - -class SingleFrontendActionFactory : public FrontendActionFactory { - FrontendAction *Action; - -public: - SingleFrontendActionFactory(FrontendAction *Action) : Action(Action) {} - - FrontendAction *create() override { return Action; } -}; - -} // namespace - -ToolInvocation::ToolInvocation( - std::vector<std::string> CommandLine, ToolAction *Action, - FileManager *Files, std::shared_ptr<PCHContainerOperations> PCHContainerOps) - : CommandLine(std::move(CommandLine)), Action(Action), OwnsAction(false), - Files(Files), PCHContainerOps(std::move(PCHContainerOps)) {} - -ToolInvocation::ToolInvocation( - std::vector<std::string> CommandLine, FrontendAction *FAction, - FileManager *Files, std::shared_ptr<PCHContainerOperations> PCHContainerOps) - : CommandLine(std::move(CommandLine)), - Action(new SingleFrontendActionFactory(FAction)), OwnsAction(true), - Files(Files), PCHContainerOps(std::move(PCHContainerOps)) {} - -ToolInvocation::~ToolInvocation() { - if (OwnsAction) - delete Action; -} - -void ToolInvocation::mapVirtualFile(StringRef FilePath, StringRef Content) { - SmallString<1024> PathStorage; - llvm::sys::path::native(FilePath, PathStorage); - MappedFileContents[PathStorage] = Content; -} - -bool ToolInvocation::run() { - std::vector<const char*> Argv; - for (const std::string &Str : CommandLine) - Argv.push_back(Str.c_str()); - const char *const BinaryName = Argv[0]; - IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions(); - unsigned MissingArgIndex, MissingArgCount; - std::unique_ptr<llvm::opt::OptTable> Opts = driver::createDriverOptTable(); - llvm::opt::InputArgList ParsedArgs = Opts->ParseArgs( - ArrayRef<const char *>(Argv).slice(1), MissingArgIndex, MissingArgCount); - ParseDiagnosticArgs(*DiagOpts, ParsedArgs); - TextDiagnosticPrinter DiagnosticPrinter( - llvm::errs(), &*DiagOpts); - DiagnosticsEngine Diagnostics( - IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts, - DiagConsumer ? DiagConsumer : &DiagnosticPrinter, false); - - const std::unique_ptr<driver::Driver> Driver( - newDriver(&Diagnostics, BinaryName, Files->getVirtualFileSystem())); - // The "input file not found" diagnostics from the driver are useful. - // The driver is only aware of the VFS working directory, but some clients - // change this at the FileManager level instead. - // In this case the checks have false positives, so skip them. - if (!Files->getFileSystemOpts().WorkingDir.empty()) - Driver->setCheckInputsExist(false); - const std::unique_ptr<driver::Compilation> Compilation( - Driver->BuildCompilation(llvm::makeArrayRef(Argv))); - if (!Compilation) - return false; - const llvm::opt::ArgStringList *const CC1Args = getCC1Arguments( - &Diagnostics, Compilation.get()); - if (!CC1Args) - return false; - std::unique_ptr<CompilerInvocation> Invocation( - newInvocation(&Diagnostics, *CC1Args)); - // FIXME: remove this when all users have migrated! - for (const auto &It : MappedFileContents) { - // Inject the code as the given file name into the preprocessor options. - std::unique_ptr<llvm::MemoryBuffer> Input = - llvm::MemoryBuffer::getMemBuffer(It.getValue()); - Invocation->getPreprocessorOpts().addRemappedFile(It.getKey(), - Input.release()); - } - return runInvocation(BinaryName, Compilation.get(), std::move(Invocation), - std::move(PCHContainerOps)); -} - -bool ToolInvocation::runInvocation( - const char *BinaryName, driver::Compilation *Compilation, - std::shared_ptr<CompilerInvocation> Invocation, - std::shared_ptr<PCHContainerOperations> PCHContainerOps) { - // Show the invocation, with -v. - if (Invocation->getHeaderSearchOpts().Verbose) { - llvm::errs() << "clang Invocation:\n"; - Compilation->getJobs().Print(llvm::errs(), "\n", true); - llvm::errs() << "\n"; - } - - return Action->runInvocation(std::move(Invocation), Files, - std::move(PCHContainerOps), DiagConsumer); -} - -bool FrontendActionFactory::runInvocation( - std::shared_ptr<CompilerInvocation> Invocation, FileManager *Files, - std::shared_ptr<PCHContainerOperations> PCHContainerOps, - DiagnosticConsumer *DiagConsumer) { - // Create a compiler instance to handle the actual work. - CompilerInstance Compiler(std::move(PCHContainerOps)); - Compiler.setInvocation(std::move(Invocation)); - Compiler.setFileManager(Files); - - // The FrontendAction can have lifetime requirements for Compiler or its - // members, and we need to ensure it's deleted earlier than Compiler. So we - // pass it to an std::unique_ptr declared after the Compiler variable. - std::unique_ptr<FrontendAction> ScopedToolAction(create()); - - // Create the compiler's actual diagnostics engine. - Compiler.createDiagnostics(DiagConsumer, /*ShouldOwnClient=*/false); - if (!Compiler.hasDiagnostics()) - return false; - - Compiler.createSourceManager(*Files); - - const bool Success = Compiler.ExecuteAction(*ScopedToolAction); - - Files->clearStatCache(); - return Success; -} - -ClangTool::ClangTool(const CompilationDatabase &Compilations, - ArrayRef<std::string> SourcePaths, - std::shared_ptr<PCHContainerOperations> PCHContainerOps, - IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) - : Compilations(Compilations), SourcePaths(SourcePaths), - PCHContainerOps(std::move(PCHContainerOps)), - OverlayFileSystem(new llvm::vfs::OverlayFileSystem(std::move(BaseFS))), - InMemoryFileSystem(new llvm::vfs::InMemoryFileSystem), - Files(new FileManager(FileSystemOptions(), OverlayFileSystem)) { - OverlayFileSystem->pushOverlay(InMemoryFileSystem); - appendArgumentsAdjuster(getClangStripOutputAdjuster()); - appendArgumentsAdjuster(getClangSyntaxOnlyAdjuster()); - appendArgumentsAdjuster(getClangStripDependencyFileAdjuster()); -} - -ClangTool::~ClangTool() = default; - -void ClangTool::mapVirtualFile(StringRef FilePath, StringRef Content) { - MappedFileContents.push_back(std::make_pair(FilePath, Content)); -} - -void ClangTool::appendArgumentsAdjuster(ArgumentsAdjuster Adjuster) { - ArgsAdjuster = combineAdjusters(std::move(ArgsAdjuster), std::move(Adjuster)); -} - -void ClangTool::clearArgumentsAdjusters() { - ArgsAdjuster = nullptr; -} - -static void injectResourceDir(CommandLineArguments &Args, const char *Argv0, - void *MainAddr) { - // Allow users to override the resource dir. - for (StringRef Arg : Args) - if (Arg.startswith("-resource-dir")) - return; - - // If there's no override in place add our resource dir. - Args.push_back("-resource-dir=" + - CompilerInvocation::GetResourcesPath(Argv0, MainAddr)); -} - -int ClangTool::run(ToolAction *Action) { - // Exists solely for the purpose of lookup of the resource path. - // This just needs to be some symbol in the binary. - static int StaticSymbol; - - // First insert all absolute paths into the in-memory VFS. These are global - // for all compile commands. - if (SeenWorkingDirectories.insert("/").second) - for (const auto &MappedFile : MappedFileContents) - if (llvm::sys::path::is_absolute(MappedFile.first)) - InMemoryFileSystem->addFile( - MappedFile.first, 0, - llvm::MemoryBuffer::getMemBuffer(MappedFile.second)); - - bool ProcessingFailed = false; - bool FileSkipped = false; - // Compute all absolute paths before we run any actions, as those will change - // the working directory. - std::vector<std::string> AbsolutePaths; - AbsolutePaths.reserve(SourcePaths.size()); - for (const auto &SourcePath : SourcePaths) { - auto AbsPath = getAbsolutePath(*OverlayFileSystem, SourcePath); - if (!AbsPath) { - llvm::errs() << "Skipping " << SourcePath - << ". Error while getting an absolute path: " - << llvm::toString(AbsPath.takeError()) << "\n"; - continue; - } - AbsolutePaths.push_back(std::move(*AbsPath)); - } - - // Remember the working directory in case we need to restore it. - std::string InitialWorkingDir; - if (RestoreCWD) { - if (auto CWD = OverlayFileSystem->getCurrentWorkingDirectory()) { - InitialWorkingDir = std::move(*CWD); - } else { - llvm::errs() << "Could not get working directory: " - << CWD.getError().message() << "\n"; - } - } - - for (llvm::StringRef File : AbsolutePaths) { - // Currently implementations of CompilationDatabase::getCompileCommands can - // change the state of the file system (e.g. prepare generated headers), so - // this method needs to run right before we invoke the tool, as the next - // file may require a different (incompatible) state of the file system. - // - // FIXME: Make the compilation database interface more explicit about the - // requirements to the order of invocation of its members. - std::vector<CompileCommand> CompileCommandsForFile = - Compilations.getCompileCommands(File); - if (CompileCommandsForFile.empty()) { - llvm::errs() << "Skipping " << File << ". Compile command not found.\n"; - FileSkipped = true; - continue; - } - for (CompileCommand &CompileCommand : CompileCommandsForFile) { - // FIXME: chdir is thread hostile; on the other hand, creating the same - // behavior as chdir is complex: chdir resolves the path once, thus - // guaranteeing that all subsequent relative path operations work - // on the same path the original chdir resulted in. This makes a - // difference for example on network filesystems, where symlinks might be - // switched during runtime of the tool. Fixing this depends on having a - // file system abstraction that allows openat() style interactions. - if (OverlayFileSystem->setCurrentWorkingDirectory( - CompileCommand.Directory)) - llvm::report_fatal_error("Cannot chdir into \"" + - Twine(CompileCommand.Directory) + "\n!"); - - // Now fill the in-memory VFS with the relative file mappings so it will - // have the correct relative paths. We never remove mappings but that - // should be fine. - if (SeenWorkingDirectories.insert(CompileCommand.Directory).second) - for (const auto &MappedFile : MappedFileContents) - if (!llvm::sys::path::is_absolute(MappedFile.first)) - InMemoryFileSystem->addFile( - MappedFile.first, 0, - llvm::MemoryBuffer::getMemBuffer(MappedFile.second)); - - std::vector<std::string> CommandLine = CompileCommand.CommandLine; - if (ArgsAdjuster) - CommandLine = ArgsAdjuster(CommandLine, CompileCommand.Filename); - assert(!CommandLine.empty()); - - // Add the resource dir based on the binary of this tool. argv[0] in the - // compilation database may refer to a different compiler and we want to - // pick up the very same standard library that compiler is using. The - // builtin headers in the resource dir need to match the exact clang - // version the tool is using. - // FIXME: On linux, GetMainExecutable is independent of the value of the - // first argument, thus allowing ClangTool and runToolOnCode to just - // pass in made-up names here. Make sure this works on other platforms. - injectResourceDir(CommandLine, "clang_tool", &StaticSymbol); - - // FIXME: We need a callback mechanism for the tool writer to output a - // customized message for each file. - LLVM_DEBUG({ llvm::dbgs() << "Processing: " << File << ".\n"; }); - ToolInvocation Invocation(std::move(CommandLine), Action, Files.get(), - PCHContainerOps); - Invocation.setDiagnosticConsumer(DiagConsumer); - - if (!Invocation.run()) { - // FIXME: Diagnostics should be used instead. - llvm::errs() << "Error while processing " << File << ".\n"; - ProcessingFailed = true; - } - } - } - - if (!InitialWorkingDir.empty()) { - if (auto EC = - OverlayFileSystem->setCurrentWorkingDirectory(InitialWorkingDir)) - llvm::errs() << "Error when trying to restore working dir: " - << EC.message() << "\n"; - } - return ProcessingFailed ? 1 : (FileSkipped ? 2 : 0); -} - -namespace { - -class ASTBuilderAction : public ToolAction { - std::vector<std::unique_ptr<ASTUnit>> &ASTs; - -public: - ASTBuilderAction(std::vector<std::unique_ptr<ASTUnit>> &ASTs) : ASTs(ASTs) {} - - bool runInvocation(std::shared_ptr<CompilerInvocation> Invocation, - FileManager *Files, - std::shared_ptr<PCHContainerOperations> PCHContainerOps, - DiagnosticConsumer *DiagConsumer) override { - std::unique_ptr<ASTUnit> AST = ASTUnit::LoadFromCompilerInvocation( - Invocation, std::move(PCHContainerOps), - CompilerInstance::createDiagnostics(&Invocation->getDiagnosticOpts(), - DiagConsumer, - /*ShouldOwnClient=*/false), - Files); - if (!AST) - return false; - - ASTs.push_back(std::move(AST)); - return true; - } -}; - -} // namespace - -int ClangTool::buildASTs(std::vector<std::unique_ptr<ASTUnit>> &ASTs) { - ASTBuilderAction Action(ASTs); - return run(&Action); -} - -void ClangTool::setRestoreWorkingDir(bool RestoreCWD) { - this->RestoreCWD = RestoreCWD; -} - -namespace clang { -namespace tooling { - -std::unique_ptr<ASTUnit> -buildASTFromCode(StringRef Code, StringRef FileName, - std::shared_ptr<PCHContainerOperations> PCHContainerOps) { - return buildASTFromCodeWithArgs(Code, std::vector<std::string>(), FileName, - "clang-tool", std::move(PCHContainerOps)); -} - -std::unique_ptr<ASTUnit> buildASTFromCodeWithArgs( - StringRef Code, const std::vector<std::string> &Args, StringRef FileName, - StringRef ToolName, std::shared_ptr<PCHContainerOperations> PCHContainerOps, - ArgumentsAdjuster Adjuster) { - std::vector<std::unique_ptr<ASTUnit>> ASTs; - ASTBuilderAction Action(ASTs); - llvm::IntrusiveRefCntPtr<llvm::vfs::OverlayFileSystem> OverlayFileSystem( - new llvm::vfs::OverlayFileSystem(llvm::vfs::getRealFileSystem())); - llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> InMemoryFileSystem( - new llvm::vfs::InMemoryFileSystem); - OverlayFileSystem->pushOverlay(InMemoryFileSystem); - llvm::IntrusiveRefCntPtr<FileManager> Files( - new FileManager(FileSystemOptions(), OverlayFileSystem)); - - ToolInvocation Invocation( - getSyntaxOnlyToolArgs(ToolName, Adjuster(Args, FileName), FileName), - &Action, Files.get(), std::move(PCHContainerOps)); - - InMemoryFileSystem->addFile(FileName, 0, - llvm::MemoryBuffer::getMemBufferCopy(Code)); - if (!Invocation.run()) - return nullptr; - - assert(ASTs.size() == 1); - return std::move(ASTs[0]); -} - -} // namespace tooling -} // namespace clang |
