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| 2 | |
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| 8 | |
| 9 | #include "clang/Rewrite/Frontend/FrontendActions.h" |
| 10 | #include "clang/AST/ASTConsumer.h" |
| 11 | #include "clang/Basic/CharInfo.h" |
| 12 | #include "clang/Config/config.h" |
| 13 | #include "clang/Frontend/CompilerInstance.h" |
| 14 | #include "clang/Frontend/FrontendActions.h" |
| 15 | #include "clang/Frontend/FrontendDiagnostic.h" |
| 16 | #include "clang/Frontend/Utils.h" |
| 17 | #include "clang/Lex/Preprocessor.h" |
| 18 | #include "clang/Lex/PreprocessorOptions.h" |
| 19 | #include "clang/Rewrite/Frontend/ASTConsumers.h" |
| 20 | #include "clang/Rewrite/Frontend/FixItRewriter.h" |
| 21 | #include "clang/Rewrite/Frontend/Rewriters.h" |
| 22 | #include "clang/Serialization/ASTReader.h" |
| 23 | #include "clang/Serialization/Module.h" |
| 24 | #include "clang/Serialization/ModuleManager.h" |
| 25 | #include "llvm/ADT/DenseSet.h" |
| 26 | #include "llvm/Support/CrashRecoveryContext.h" |
| 27 | #include "llvm/Support/FileSystem.h" |
| 28 | #include "llvm/Support/Path.h" |
| 29 | #include "llvm/Support/raw_ostream.h" |
| 30 | #include <memory> |
| 31 | #include <utility> |
| 32 | |
| 33 | using namespace clang; |
| 34 | |
| 35 | |
| 36 | |
| 37 | |
| 38 | |
| 39 | std::unique_ptr<ASTConsumer> |
| 40 | HTMLPrintAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { |
| 41 | if (std::unique_ptr<raw_ostream> OS = |
| 42 | CI.createDefaultOutputFile(false, InFile)) |
| 43 | return CreateHTMLPrinter(std::move(OS), CI.getPreprocessor()); |
| 44 | return nullptr; |
| 45 | } |
| 46 | |
| 47 | FixItAction::FixItAction() {} |
| 48 | FixItAction::~FixItAction() {} |
| 49 | |
| 50 | std::unique_ptr<ASTConsumer> |
| 51 | FixItAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { |
| 52 | return llvm::make_unique<ASTConsumer>(); |
| 53 | } |
| 54 | |
| 55 | namespace { |
| 56 | class FixItRewriteInPlace : public FixItOptions { |
| 57 | public: |
| 58 | FixItRewriteInPlace() { InPlace = true; } |
| 59 | |
| 60 | std::string RewriteFilename(const std::string &Filename, int &fd) override { |
| 61 | llvm_unreachable("don't call RewriteFilename for inplace rewrites"); |
| 62 | } |
| 63 | }; |
| 64 | |
| 65 | class FixItActionSuffixInserter : public FixItOptions { |
| 66 | std::string NewSuffix; |
| 67 | |
| 68 | public: |
| 69 | FixItActionSuffixInserter(std::string NewSuffix, bool FixWhatYouCan) |
| 70 | : NewSuffix(std::move(NewSuffix)) { |
| 71 | this->FixWhatYouCan = FixWhatYouCan; |
| 72 | } |
| 73 | |
| 74 | std::string RewriteFilename(const std::string &Filename, int &fd) override { |
| 75 | fd = -1; |
| 76 | SmallString<128> Path(Filename); |
| 77 | llvm::sys::path::replace_extension(Path, |
| 78 | NewSuffix + llvm::sys::path::extension(Path)); |
| 79 | return Path.str(); |
| 80 | } |
| 81 | }; |
| 82 | |
| 83 | class FixItRewriteToTemp : public FixItOptions { |
| 84 | public: |
| 85 | std::string RewriteFilename(const std::string &Filename, int &fd) override { |
| 86 | SmallString<128> Path; |
| 87 | llvm::sys::fs::createTemporaryFile(llvm::sys::path::filename(Filename), |
| 88 | llvm::sys::path::extension(Filename).drop_front(), fd, |
| 89 | Path); |
| 90 | return Path.str(); |
| 91 | } |
| 92 | }; |
| 93 | } |
| 94 | |
| 95 | bool FixItAction::BeginSourceFileAction(CompilerInstance &CI) { |
| 96 | const FrontendOptions &FEOpts = getCompilerInstance().getFrontendOpts(); |
| 97 | if (!FEOpts.FixItSuffix.empty()) { |
| 98 | FixItOpts.reset(new FixItActionSuffixInserter(FEOpts.FixItSuffix, |
| 99 | FEOpts.FixWhatYouCan)); |
| 100 | } else { |
| 101 | FixItOpts.reset(new FixItRewriteInPlace); |
| 102 | FixItOpts->FixWhatYouCan = FEOpts.FixWhatYouCan; |
| 103 | } |
| 104 | Rewriter.reset(new FixItRewriter(CI.getDiagnostics(), CI.getSourceManager(), |
| 105 | CI.getLangOpts(), FixItOpts.get())); |
| 106 | return true; |
| 107 | } |
| 108 | |
| 109 | void FixItAction::EndSourceFileAction() { |
| 110 | |
| 111 | Rewriter->WriteFixedFiles(); |
| 112 | } |
| 113 | |
| 114 | bool FixItRecompile::BeginInvocation(CompilerInstance &CI) { |
| 115 | |
| 116 | std::vector<std::pair<std::string, std::string> > RewrittenFiles; |
| 117 | bool err = false; |
| 118 | { |
| 119 | const FrontendOptions &FEOpts = CI.getFrontendOpts(); |
| 120 | std::unique_ptr<FrontendAction> FixAction(new SyntaxOnlyAction()); |
| 121 | if (FixAction->BeginSourceFile(CI, FEOpts.Inputs[0])) { |
| 122 | std::unique_ptr<FixItOptions> FixItOpts; |
| 123 | if (FEOpts.FixToTemporaries) |
| 124 | FixItOpts.reset(new FixItRewriteToTemp()); |
| 125 | else |
| 126 | FixItOpts.reset(new FixItRewriteInPlace()); |
| 127 | FixItOpts->Silent = true; |
| 128 | FixItOpts->FixWhatYouCan = FEOpts.FixWhatYouCan; |
| 129 | FixItOpts->FixOnlyWarnings = FEOpts.FixOnlyWarnings; |
| 130 | FixItRewriter Rewriter(CI.getDiagnostics(), CI.getSourceManager(), |
| 131 | CI.getLangOpts(), FixItOpts.get()); |
| 132 | FixAction->Execute(); |
| 133 | |
| 134 | err = Rewriter.WriteFixedFiles(&RewrittenFiles); |
| 135 | |
| 136 | FixAction->EndSourceFile(); |
| 137 | CI.setSourceManager(nullptr); |
| 138 | CI.setFileManager(nullptr); |
| 139 | } else { |
| 140 | err = true; |
| 141 | } |
| 142 | } |
| 143 | if (err) |
| 144 | return false; |
| 145 | CI.getDiagnosticClient().clear(); |
| 146 | CI.getDiagnostics().Reset(); |
| 147 | |
| 148 | PreprocessorOptions &PPOpts = CI.getPreprocessorOpts(); |
| 149 | PPOpts.RemappedFiles.insert(PPOpts.RemappedFiles.end(), |
| 150 | RewrittenFiles.begin(), RewrittenFiles.end()); |
| 151 | PPOpts.RemappedFilesKeepOriginalName = false; |
| 152 | |
| 153 | return true; |
| 154 | } |
| 155 | |
| 156 | #if CLANG_ENABLE_OBJC_REWRITER |
| 157 | |
| 158 | std::unique_ptr<ASTConsumer> |
| 159 | RewriteObjCAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) { |
| 160 | if (std::unique_ptr<raw_ostream> OS = |
| 161 | CI.createDefaultOutputFile(false, InFile, "cpp")) { |
| 162 | if (CI.getLangOpts().ObjCRuntime.isNonFragile()) |
| 163 | return CreateModernObjCRewriter( |
| 164 | InFile, std::move(OS), CI.getDiagnostics(), CI.getLangOpts(), |
| 165 | CI.getDiagnosticOpts().NoRewriteMacros, |
| 166 | (CI.getCodeGenOpts().getDebugInfo() != codegenoptions::NoDebugInfo)); |
| 167 | return CreateObjCRewriter(InFile, std::move(OS), CI.getDiagnostics(), |
| 168 | CI.getLangOpts(), |
| 169 | CI.getDiagnosticOpts().NoRewriteMacros); |
| 170 | } |
| 171 | return nullptr; |
| 172 | } |
| 173 | |
| 174 | #endif |
| 175 | |
| 176 | |
| 177 | |
| 178 | |
| 179 | |
| 180 | void RewriteMacrosAction::ExecuteAction() { |
| 181 | CompilerInstance &CI = getCompilerInstance(); |
| 182 | std::unique_ptr<raw_ostream> OS = |
| 183 | CI.createDefaultOutputFile(true, getCurrentFileOrBufferName()); |
| 184 | if (!OS) return; |
| 185 | |
| 186 | RewriteMacrosInInput(CI.getPreprocessor(), OS.get()); |
| 187 | } |
| 188 | |
| 189 | void RewriteTestAction::ExecuteAction() { |
| 190 | CompilerInstance &CI = getCompilerInstance(); |
| 191 | std::unique_ptr<raw_ostream> OS = |
| 192 | CI.createDefaultOutputFile(false, getCurrentFileOrBufferName()); |
| 193 | if (!OS) return; |
| 194 | |
| 195 | DoRewriteTest(CI.getPreprocessor(), OS.get()); |
| 196 | } |
| 197 | |
| 198 | class RewriteIncludesAction::RewriteImportsListener : public ASTReaderListener { |
| 199 | CompilerInstance &CI; |
| 200 | std::weak_ptr<raw_ostream> Out; |
| 201 | |
| 202 | llvm::DenseSet<const FileEntry*> Rewritten; |
| 203 | |
| 204 | public: |
| 205 | RewriteImportsListener(CompilerInstance &CI, std::shared_ptr<raw_ostream> Out) |
| 206 | : CI(CI), Out(Out) {} |
| 207 | |
| 208 | void visitModuleFile(StringRef Filename, |
| 209 | serialization::ModuleKind Kind) override { |
| 210 | auto *File = CI.getFileManager().getFile(Filename); |
| 211 | (0) . __assert_fail ("File && \"missing file for loaded module?\"", "/home/seafit/code_projects/clang_source/clang/lib/Frontend/Rewrite/FrontendActions.cpp", 211, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(File && "missing file for loaded module?"); |
| 212 | |
| 213 | |
| 214 | if (!Rewritten.insert(File).second) |
| 215 | return; |
| 216 | |
| 217 | serialization::ModuleFile *MF = |
| 218 | CI.getModuleManager()->getModuleManager().lookup(File); |
| 219 | (0) . __assert_fail ("File && \"missing module file for loaded module?\"", "/home/seafit/code_projects/clang_source/clang/lib/Frontend/Rewrite/FrontendActions.cpp", 219, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(File && "missing module file for loaded module?"); |
| 220 | |
| 221 | |
| 222 | if (!MF->isModule()) |
| 223 | return; |
| 224 | |
| 225 | auto OS = Out.lock(); |
| 226 | (0) . __assert_fail ("OS && \"loaded module file after finishing rewrite action?\"", "/home/seafit/code_projects/clang_source/clang/lib/Frontend/Rewrite/FrontendActions.cpp", 226, __PRETTY_FUNCTION__))" file_link="../../../../include/assert.h.html#88" macro="true">assert(OS && "loaded module file after finishing rewrite action?"); |
| 227 | |
| 228 | (*OS) << "#pragma clang module build "; |
| 229 | if (isValidIdentifier(MF->ModuleName)) |
| 230 | (*OS) << MF->ModuleName; |
| 231 | else { |
| 232 | (*OS) << '"'; |
| 233 | OS->write_escaped(MF->ModuleName); |
| 234 | (*OS) << '"'; |
| 235 | } |
| 236 | (*OS) << '\n'; |
| 237 | |
| 238 | |
| 239 | CompilerInstance Instance(CI.getPCHContainerOperations(), |
| 240 | &CI.getModuleCache()); |
| 241 | Instance.setInvocation( |
| 242 | std::make_shared<CompilerInvocation>(CI.getInvocation())); |
| 243 | Instance.createDiagnostics( |
| 244 | new ForwardingDiagnosticConsumer(CI.getDiagnosticClient()), |
| 245 | ); |
| 246 | Instance.getFrontendOpts().DisableFree = false; |
| 247 | Instance.getFrontendOpts().Inputs.clear(); |
| 248 | Instance.getFrontendOpts().Inputs.emplace_back( |
| 249 | Filename, InputKind(InputKind::Unknown, InputKind::Precompiled)); |
| 250 | Instance.getFrontendOpts().ModuleFiles.clear(); |
| 251 | Instance.getFrontendOpts().ModuleMapFiles.clear(); |
| 252 | |
| 253 | Instance.getPreprocessorOutputOpts().RewriteImports = false; |
| 254 | |
| 255 | llvm::CrashRecoveryContext().RunSafelyOnThread([&]() { |
| 256 | RewriteIncludesAction Action; |
| 257 | Action.OutputStream = OS; |
| 258 | Instance.ExecuteAction(Action); |
| 259 | }); |
| 260 | |
| 261 | (*OS) << "#pragma clang module endbuild /*" << MF->ModuleName << "*/\n"; |
| 262 | } |
| 263 | }; |
| 264 | |
| 265 | bool RewriteIncludesAction::BeginSourceFileAction(CompilerInstance &CI) { |
| 266 | if (!OutputStream) { |
| 267 | OutputStream = |
| 268 | CI.createDefaultOutputFile(true, getCurrentFileOrBufferName()); |
| 269 | if (!OutputStream) |
| 270 | return false; |
| 271 | } |
| 272 | |
| 273 | auto &OS = *OutputStream; |
| 274 | |
| 275 | |
| 276 | |
| 277 | auto &Input = getCurrentInput(); |
| 278 | if (Input.getKind().getFormat() == InputKind::ModuleMap) { |
| 279 | if (Input.isFile()) { |
| 280 | OS << "# 1 \""; |
| 281 | OS.write_escaped(Input.getFile()); |
| 282 | OS << "\"\n"; |
| 283 | } |
| 284 | getCurrentModule()->print(OS); |
| 285 | OS << "#pragma clang module contents\n"; |
| 286 | } |
| 287 | |
| 288 | |
| 289 | |
| 290 | if (CI.getPreprocessorOutputOpts().RewriteImports) { |
| 291 | CI.createModuleManager(); |
| 292 | CI.getModuleManager()->addListener( |
| 293 | llvm::make_unique<RewriteImportsListener>(CI, OutputStream)); |
| 294 | } |
| 295 | |
| 296 | return true; |
| 297 | } |
| 298 | |
| 299 | void RewriteIncludesAction::ExecuteAction() { |
| 300 | CompilerInstance &CI = getCompilerInstance(); |
| 301 | |
| 302 | |
| 303 | |
| 304 | if (CI.getPreprocessorOutputOpts().RewriteImports) { |
| 305 | std::string Buffer; |
| 306 | llvm::raw_string_ostream OS(Buffer); |
| 307 | |
| 308 | RewriteIncludesInInput(CI.getPreprocessor(), &OS, |
| 309 | CI.getPreprocessorOutputOpts()); |
| 310 | |
| 311 | (*OutputStream) << OS.str(); |
| 312 | } else { |
| 313 | RewriteIncludesInInput(CI.getPreprocessor(), OutputStream.get(), |
| 314 | CI.getPreprocessorOutputOpts()); |
| 315 | } |
| 316 | |
| 317 | OutputStream.reset(); |
| 318 | } |
| 319 | |