1 //===- FrontendOptions.h ----------------------------------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
9 #ifndef LLVM_CLANG_FRONTEND_FRONTENDOPTIONS_H
10 #define LLVM_CLANG_FRONTEND_FRONTENDOPTIONS_H
12 #include "clang/AST/ASTDumperUtils.h"
13 #include "clang/Frontend/CommandLineSourceLoc.h"
14 #include "clang/Serialization/ModuleFileExtension.h"
15 #include "clang/Sema/CodeCompleteOptions.h"
16 #include "llvm/ADT/StringRef.h"
21 #include <unordered_map>
34 /// Parse ASTs and list Decl nodes.
37 /// Parse ASTs and dump them.
40 /// Parse ASTs and print them.
43 /// Parse ASTs and view them in Graphviz.
46 /// Dump the compiler configuration.
49 /// Dump out raw tokens.
52 /// Dump out preprocessed tokens.
61 /// Translate input source into HTML.
67 /// Generate LLVM IR, but do not emit anything.
70 /// Generate machine code, but don't emit anything.
76 /// Parse and apply any fixits to the source.
79 /// Generate pre-compiled module from a module map.
82 /// Generate pre-compiled module from a C++ module interface file.
83 GenerateModuleInterface,
85 /// Generate pre-compiled module from a set of header files.
88 /// Generate pre-compiled header.
91 /// Generate Interface Stub Files.
92 GenerateInterfaceYAMLExpV1,
93 GenerateInterfaceTBEExpV1,
95 /// Only execute frontend initialization.
98 /// Dump information about a module file.
101 /// Load and verify that a PCH file is usable.
104 /// Parse and perform semantic analysis.
107 /// Run a plugin action, \see ActionName.
110 /// Print the "preamble" of the input file
114 PrintPreprocessedInput,
116 /// Expand macros but not \#includes.
119 /// ObjC->C Rewriter.
122 /// Rewriter playground
125 /// Run one or more source code analyses.
128 /// Dump template instantiations
134 /// Just lex, no output.
137 /// Print the output of the dependency directives source minimizer.
138 PrintDependencyDirectivesSourceMinimizerOutput
141 } // namespace frontend
143 /// The kind of a file that we've been handed as an input.
148 unsigned Preprocessed : 1;
151 /// The language for the input, used to select and validate the language
152 /// standard and possible actions.
156 /// Assembly: we accept this only so that we can preprocess it.
159 /// LLVM IR: we accept this so that we can run the optimizer on it,
160 /// and compile it to assembly or object code.
163 ///@{ Languages that the frontend can parse and compile.
175 /// The input file format.
182 constexpr InputKind(Language L = Unknown, Format F = Source,
184 : Lang(L), Fmt(F), Preprocessed(PP) {}
186 Language getLanguage() const { return static_cast<Language>(Lang); }
187 Format getFormat() const { return static_cast<Format>(Fmt); }
188 bool isPreprocessed() const { return Preprocessed; }
190 /// Is the input kind fully-unknown?
191 bool isUnknown() const { return Lang == Unknown && Fmt == Source; }
193 /// Is the language of the input some dialect of Objective-C?
194 bool isObjectiveC() const { return Lang == ObjC || Lang == ObjCXX; }
196 InputKind getPreprocessed() const {
197 return InputKind(getLanguage(), getFormat(), true);
200 InputKind withFormat(Format F) const {
201 return InputKind(getLanguage(), F, isPreprocessed());
205 /// An input file for the front end.
206 class FrontendInputFile {
207 /// The file name, or "-" to read from standard input.
210 /// The input, if it comes from a buffer rather than a file. This object
211 /// does not own the buffer, and the caller is responsible for ensuring
212 /// that it outlives any users.
213 const llvm::MemoryBuffer *Buffer = nullptr;
215 /// The kind of input, e.g., C source, AST file, LLVM IR.
218 /// Whether we're dealing with a 'system' input (vs. a 'user' input).
219 bool IsSystem = false;
222 FrontendInputFile() = default;
223 FrontendInputFile(StringRef File, InputKind Kind, bool IsSystem = false)
224 : File(File.str()), Kind(Kind), IsSystem(IsSystem) {}
225 FrontendInputFile(const llvm::MemoryBuffer *Buffer, InputKind Kind,
226 bool IsSystem = false)
227 : Buffer(Buffer), Kind(Kind), IsSystem(IsSystem) {}
229 InputKind getKind() const { return Kind; }
230 bool isSystem() const { return IsSystem; }
232 bool isEmpty() const { return File.empty() && Buffer == nullptr; }
233 bool isFile() const { return !isBuffer(); }
234 bool isBuffer() const { return Buffer != nullptr; }
235 bool isPreprocessed() const { return Kind.isPreprocessed(); }
237 StringRef getFile() const {
242 const llvm::MemoryBuffer *getBuffer() const {
248 /// FrontendOptions - Options for controlling the behavior of the frontend.
249 class FrontendOptions {
251 /// Disable memory freeing on exit.
252 unsigned DisableFree : 1;
254 /// When generating PCH files, instruct the AST writer to create relocatable
256 unsigned RelocatablePCH : 1;
258 /// Show the -help text.
259 unsigned ShowHelp : 1;
261 /// Show frontend performance metrics and statistics.
262 unsigned ShowStats : 1;
264 /// Show timers for individual actions.
265 unsigned ShowTimers : 1;
267 /// print the supported cpus for the current target
268 unsigned PrintSupportedCPUs : 1;
270 /// Output time trace profile.
271 unsigned TimeTrace : 1;
273 /// Show the -version text.
274 unsigned ShowVersion : 1;
276 /// Apply fixes even if there are unfixable errors.
277 unsigned FixWhatYouCan : 1;
279 /// Apply fixes only for warnings.
280 unsigned FixOnlyWarnings : 1;
282 /// Apply fixes and recompile.
283 unsigned FixAndRecompile : 1;
285 /// Apply fixes to temporary files.
286 unsigned FixToTemporaries : 1;
288 /// Emit ARC errors even if the migrator can fix them.
289 unsigned ARCMTMigrateEmitARCErrors : 1;
291 /// Skip over function bodies to speed up parsing in cases you do not need
292 /// them (e.g. with code completion).
293 unsigned SkipFunctionBodies : 1;
295 /// Whether we can use the global module index if available.
296 unsigned UseGlobalModuleIndex : 1;
298 /// Whether we can generate the global module index if needed.
299 unsigned GenerateGlobalModuleIndex : 1;
301 /// Whether we include declaration dumps in AST dumps.
302 unsigned ASTDumpDecls : 1;
304 /// Whether we deserialize all decls when forming AST dumps.
305 unsigned ASTDumpAll : 1;
307 /// Whether we include lookup table dumps in AST dumps.
308 unsigned ASTDumpLookups : 1;
310 /// Whether we are performing an implicit module build.
311 unsigned BuildingImplicitModule : 1;
313 /// Whether we should embed all used files into the PCM file.
314 unsigned ModulesEmbedAllFiles : 1;
316 /// Whether timestamps should be written to the produced PCH file.
317 unsigned IncludeTimestamps : 1;
319 CodeCompleteOptions CodeCompleteOpts;
321 /// Specifies the output format of the AST.
322 ASTDumpOutputFormat ASTDumpFormat = ADOF_Default;
329 } ARCMTAction = ARCMT_None;
334 /// Enable migration to modern ObjC literals.
335 ObjCMT_Literals = 0x1,
337 /// Enable migration to modern ObjC subscripting.
338 ObjCMT_Subscripting = 0x2,
340 /// Enable migration to modern ObjC readonly property.
341 ObjCMT_ReadonlyProperty = 0x4,
343 /// Enable migration to modern ObjC readwrite property.
344 ObjCMT_ReadwriteProperty = 0x8,
346 /// Enable migration to modern ObjC property.
347 ObjCMT_Property = (ObjCMT_ReadonlyProperty | ObjCMT_ReadwriteProperty),
349 /// Enable annotation of ObjCMethods of all kinds.
350 ObjCMT_Annotation = 0x10,
352 /// Enable migration of ObjC methods to 'instancetype'.
353 ObjCMT_Instancetype = 0x20,
355 /// Enable migration to NS_ENUM/NS_OPTIONS macros.
356 ObjCMT_NsMacros = 0x40,
358 /// Enable migration to add conforming protocols.
359 ObjCMT_ProtocolConformance = 0x80,
361 /// prefer 'atomic' property over 'nonatomic'.
362 ObjCMT_AtomicProperty = 0x100,
364 /// annotate property with NS_RETURNS_INNER_POINTER
365 ObjCMT_ReturnsInnerPointerProperty = 0x200,
367 /// use NS_NONATOMIC_IOSONLY for property 'atomic' attribute
368 ObjCMT_NsAtomicIOSOnlyProperty = 0x400,
370 /// Enable inferring NS_DESIGNATED_INITIALIZER for ObjC methods.
371 ObjCMT_DesignatedInitializer = 0x800,
373 /// Enable converting setter/getter expressions to property-dot syntx.
374 ObjCMT_PropertyDotSyntax = 0x1000,
376 ObjCMT_MigrateDecls = (ObjCMT_ReadonlyProperty | ObjCMT_ReadwriteProperty |
377 ObjCMT_Annotation | ObjCMT_Instancetype |
378 ObjCMT_NsMacros | ObjCMT_ProtocolConformance |
379 ObjCMT_NsAtomicIOSOnlyProperty |
380 ObjCMT_DesignatedInitializer),
381 ObjCMT_MigrateAll = (ObjCMT_Literals | ObjCMT_Subscripting |
382 ObjCMT_MigrateDecls | ObjCMT_PropertyDotSyntax)
384 unsigned ObjCMTAction = ObjCMT_None;
385 std::string ObjCMTWhiteListPath;
387 std::string MTMigrateDir;
388 std::string ARCMTMigrateReportOut;
390 /// The input files and their types.
391 std::vector<FrontendInputFile> Inputs;
393 /// When the input is a module map, the original module map file from which
394 /// that map was inferred, if any (for umbrella modules).
395 std::string OriginalModuleMap;
397 /// The output file, if any.
398 std::string OutputFile;
400 /// If given, the new suffix for fix-it rewritten files.
401 std::string FixItSuffix;
403 /// If given, filter dumped AST Decl nodes by this substring.
404 std::string ASTDumpFilter;
406 /// If given, enable code completion at the provided location.
407 ParsedSourceLocation CodeCompletionAt;
409 /// The frontend action to perform.
410 frontend::ActionKind ProgramAction = frontend::ParseSyntaxOnly;
412 /// The name of the action to run when using a plugin action.
413 std::string ActionName;
415 /// Args to pass to the plugins
416 std::unordered_map<std::string,std::vector<std::string>> PluginArgs;
418 /// The list of plugin actions to run in addition to the normal action.
419 std::vector<std::string> AddPluginActions;
421 /// The list of plugins to load.
422 std::vector<std::string> Plugins;
424 /// The list of module file extensions.
425 std::vector<std::shared_ptr<ModuleFileExtension>> ModuleFileExtensions;
427 /// The list of module map files to load before processing the input.
428 std::vector<std::string> ModuleMapFiles;
430 /// The list of additional prebuilt module files to load before
431 /// processing the input.
432 std::vector<std::string> ModuleFiles;
434 /// The list of files to embed into the compiled module file.
435 std::vector<std::string> ModulesEmbedFiles;
437 /// The list of AST files to merge.
438 std::vector<std::string> ASTMergeFiles;
440 /// A list of arguments to forward to LLVM's option processing; this
441 /// should only be used for debugging and experimental features.
442 std::vector<std::string> LLVMArgs;
444 /// File name of the file that will provide record layouts
445 /// (in the format produced by -fdump-record-layouts).
446 std::string OverrideRecordLayoutsFile;
448 /// Auxiliary triple for CUDA compilation.
449 std::string AuxTriple;
451 /// Filename to write statistics to.
452 std::string StatsFile;
456 : DisableFree(false), RelocatablePCH(false), ShowHelp(false),
457 ShowStats(false), ShowTimers(false), TimeTrace(false),
458 ShowVersion(false), FixWhatYouCan(false), FixOnlyWarnings(false),
459 FixAndRecompile(false), FixToTemporaries(false),
460 ARCMTMigrateEmitARCErrors(false), SkipFunctionBodies(false),
461 UseGlobalModuleIndex(true), GenerateGlobalModuleIndex(true),
462 ASTDumpDecls(false), ASTDumpLookups(false),
463 BuildingImplicitModule(false), ModulesEmbedAllFiles(false),
464 IncludeTimestamps(true) {}
466 /// getInputKindForExtension - Return the appropriate input kind for a file
467 /// extension. For example, "c" would return InputKind::C.
469 /// \return The input kind for the extension, or InputKind::Unknown if the
470 /// extension is not recognized.
471 static InputKind getInputKindForExtension(StringRef Extension);
476 #endif // LLVM_CLANG_FRONTEND_FRONTENDOPTIONS_H