1 //===--- FrontendOptions.h --------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_CLANG_FRONTEND_FRONTENDOPTIONS_H
11 #define LLVM_CLANG_FRONTEND_FRONTENDOPTIONS_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"
28 ASTDeclList, ///< Parse ASTs and list Decl nodes.
29 ASTDump, ///< Parse ASTs and dump them.
30 ASTPrint, ///< Parse ASTs and print them.
31 ASTView, ///< Parse ASTs and view them in Graphviz.
32 DumpRawTokens, ///< Dump out raw tokens.
33 DumpTokens, ///< Dump out preprocessed tokens.
34 EmitAssembly, ///< Emit a .s file.
35 EmitBC, ///< Emit a .bc file.
36 EmitHTML, ///< Translate input source into HTML.
37 EmitLLVM, ///< Emit a .ll file.
38 EmitLLVMOnly, ///< Generate LLVM IR, but do not emit anything.
39 EmitCodeGenOnly, ///< Generate machine code, but don't emit anything.
40 EmitObj, ///< Emit a .o file.
41 FixIt, ///< Parse and apply any fixits to the source.
42 GenerateModule, ///< Generate pre-compiled module.
43 GeneratePCH, ///< Generate pre-compiled header.
44 GeneratePTH, ///< Generate pre-tokenized header.
45 InitOnly, ///< Only execute frontend initialization.
46 ModuleFileInfo, ///< Dump information about a module file.
47 VerifyPCH, ///< Load and verify that a PCH file is usable.
48 ParseSyntaxOnly, ///< Parse and perform semantic analysis.
49 PluginAction, ///< Run a plugin action, \see ActionName.
50 PrintDeclContext, ///< Print DeclContext and their Decls.
51 PrintPreamble, ///< Print the "preamble" of the input file
52 PrintPreprocessedInput, ///< -E mode.
53 RewriteMacros, ///< Expand macros but not \#includes.
54 RewriteObjC, ///< ObjC->C Rewriter.
55 RewriteTest, ///< Rewriter playground
56 RunAnalysis, ///< Run one or more source code analyses.
57 MigrateSource, ///< Run migrator.
58 RunPreprocessorOnly ///< Just lex, no output.
72 IK_PreprocessedObjCXX,
81 /// \brief An input file for the front end.
82 class FrontendInputFile {
83 /// \brief The file name, or "-" to read from standard input.
86 llvm::MemoryBuffer *Buffer;
88 /// \brief The kind of input, e.g., C source, AST file, LLVM IR.
91 /// \brief Whether we're dealing with a 'system' input (vs. a 'user' input).
95 FrontendInputFile() : Buffer(nullptr), Kind(IK_None), IsSystem(false) { }
96 FrontendInputFile(StringRef File, InputKind Kind, bool IsSystem = false)
97 : File(File.str()), Buffer(nullptr), Kind(Kind), IsSystem(IsSystem) { }
98 FrontendInputFile(llvm::MemoryBuffer *buffer, InputKind Kind,
99 bool IsSystem = false)
100 : Buffer(buffer), Kind(Kind), IsSystem(IsSystem) { }
102 InputKind getKind() const { return Kind; }
103 bool isSystem() const { return IsSystem; }
105 bool isEmpty() const { return File.empty() && Buffer == nullptr; }
106 bool isFile() const { return !isBuffer(); }
107 bool isBuffer() const { return Buffer != nullptr; }
109 StringRef getFile() const {
113 llvm::MemoryBuffer *getBuffer() const {
119 /// FrontendOptions - Options for controlling the behavior of the frontend.
120 class FrontendOptions {
122 unsigned DisableFree : 1; ///< Disable memory freeing on exit.
123 unsigned RelocatablePCH : 1; ///< When generating PCH files,
124 /// instruct the AST writer to create
125 /// relocatable PCH files.
126 unsigned ShowHelp : 1; ///< Show the -help text.
127 unsigned ShowStats : 1; ///< Show frontend performance
128 /// metrics and statistics.
129 unsigned ShowTimers : 1; ///< Show timers for individual
131 unsigned ShowVersion : 1; ///< Show the -version text.
132 unsigned FixWhatYouCan : 1; ///< Apply fixes even if there are
133 /// unfixable errors.
134 unsigned FixOnlyWarnings : 1; ///< Apply fixes only for warnings.
135 unsigned FixAndRecompile : 1; ///< Apply fixes and recompile.
136 unsigned FixToTemporaries : 1; ///< Apply fixes to temporary files.
137 unsigned ARCMTMigrateEmitARCErrors : 1; /// Emit ARC errors even if the
138 /// migrator can fix them
139 unsigned SkipFunctionBodies : 1; ///< Skip over function bodies to
140 /// speed up parsing in cases you do
141 /// not need them (e.g. with code
143 unsigned UseGlobalModuleIndex : 1; ///< Whether we can use the
144 ///< global module index if available.
145 unsigned GenerateGlobalModuleIndex : 1; ///< Whether we can generate the
146 ///< global module index if needed.
147 unsigned ASTDumpDecls : 1; ///< Whether we include declaration
148 ///< dumps in AST dumps.
149 unsigned ASTDumpLookups : 1; ///< Whether we include lookup table
150 ///< dumps in AST dumps.
151 unsigned BuildingImplicitModule : 1; ///< Whether we are performing an
152 ///< implicit module build.
153 unsigned ModulesEmbedAllFiles : 1; ///< Whether we should embed all used
154 ///< files into the PCM file.
156 CodeCompleteOptions CodeCompleteOpts;
167 /// \brief Enable migration to modern ObjC literals.
168 ObjCMT_Literals = 0x1,
169 /// \brief Enable migration to modern ObjC subscripting.
170 ObjCMT_Subscripting = 0x2,
171 /// \brief Enable migration to modern ObjC readonly property.
172 ObjCMT_ReadonlyProperty = 0x4,
173 /// \brief Enable migration to modern ObjC readwrite property.
174 ObjCMT_ReadwriteProperty = 0x8,
175 /// \brief Enable migration to modern ObjC property.
176 ObjCMT_Property = (ObjCMT_ReadonlyProperty | ObjCMT_ReadwriteProperty),
177 /// \brief Enable annotation of ObjCMethods of all kinds.
178 ObjCMT_Annotation = 0x10,
179 /// \brief Enable migration of ObjC methods to 'instancetype'.
180 ObjCMT_Instancetype = 0x20,
181 /// \brief Enable migration to NS_ENUM/NS_OPTIONS macros.
182 ObjCMT_NsMacros = 0x40,
183 /// \brief Enable migration to add conforming protocols.
184 ObjCMT_ProtocolConformance = 0x80,
185 /// \brief prefer 'atomic' property over 'nonatomic'.
186 ObjCMT_AtomicProperty = 0x100,
187 /// \brief annotate property with NS_RETURNS_INNER_POINTER
188 ObjCMT_ReturnsInnerPointerProperty = 0x200,
189 /// \brief use NS_NONATOMIC_IOSONLY for property 'atomic' attribute
190 ObjCMT_NsAtomicIOSOnlyProperty = 0x400,
191 /// \brief Enable inferring NS_DESIGNATED_INITIALIZER for ObjC methods.
192 ObjCMT_DesignatedInitializer = 0x800,
193 /// \brief Enable converting setter/getter expressions to property-dot syntx.
194 ObjCMT_PropertyDotSyntax = 0x1000,
195 ObjCMT_MigrateDecls = (ObjCMT_ReadonlyProperty | ObjCMT_ReadwriteProperty |
196 ObjCMT_Annotation | ObjCMT_Instancetype |
197 ObjCMT_NsMacros | ObjCMT_ProtocolConformance |
198 ObjCMT_NsAtomicIOSOnlyProperty |
199 ObjCMT_DesignatedInitializer),
200 ObjCMT_MigrateAll = (ObjCMT_Literals | ObjCMT_Subscripting |
201 ObjCMT_MigrateDecls | ObjCMT_PropertyDotSyntax)
203 unsigned ObjCMTAction;
204 std::string ObjCMTWhiteListPath;
206 std::string MTMigrateDir;
207 std::string ARCMTMigrateReportOut;
209 /// The input files and their types.
210 std::vector<FrontendInputFile> Inputs;
212 /// The output file, if any.
213 std::string OutputFile;
215 /// If given, the new suffix for fix-it rewritten files.
216 std::string FixItSuffix;
218 /// If given, filter dumped AST Decl nodes by this substring.
219 std::string ASTDumpFilter;
221 /// If given, enable code completion at the provided location.
222 ParsedSourceLocation CodeCompletionAt;
224 /// The frontend action to perform.
225 frontend::ActionKind ProgramAction;
227 /// The name of the action to run when using a plugin action.
228 std::string ActionName;
230 /// Args to pass to the plugin
231 std::vector<std::string> PluginArgs;
233 /// The list of plugin actions to run in addition to the normal action.
234 std::vector<std::string> AddPluginActions;
236 /// Args to pass to the additional plugins
237 std::vector<std::vector<std::string> > AddPluginArgs;
239 /// The list of plugins to load.
240 std::vector<std::string> Plugins;
242 /// The list of module file extensions.
243 std::vector<IntrusiveRefCntPtr<ModuleFileExtension>> ModuleFileExtensions;
245 /// \brief The list of module map files to load before processing the input.
246 std::vector<std::string> ModuleMapFiles;
248 /// \brief The list of additional prebuilt module files to load before
249 /// processing the input.
250 std::vector<std::string> ModuleFiles;
252 /// \brief The list of files to embed into the compiled module file.
253 std::vector<std::string> ModulesEmbedFiles;
255 /// \brief The list of AST files to merge.
256 std::vector<std::string> ASTMergeFiles;
258 /// \brief A list of arguments to forward to LLVM's option processing; this
259 /// should only be used for debugging and experimental features.
260 std::vector<std::string> LLVMArgs;
262 /// \brief File name of the file that will provide record layouts
263 /// (in the format produced by -fdump-record-layouts).
264 std::string OverrideRecordLayoutsFile;
266 /// \brief Auxiliary triple for CUDA compilation.
267 std::string AuxTriple;
271 DisableFree(false), RelocatablePCH(false), ShowHelp(false),
272 ShowStats(false), ShowTimers(false), ShowVersion(false),
273 FixWhatYouCan(false), FixOnlyWarnings(false), FixAndRecompile(false),
274 FixToTemporaries(false), ARCMTMigrateEmitARCErrors(false),
275 SkipFunctionBodies(false), UseGlobalModuleIndex(true),
276 GenerateGlobalModuleIndex(true), ASTDumpDecls(false), ASTDumpLookups(false),
277 BuildingImplicitModule(false), ModulesEmbedAllFiles(false),
278 ARCMTAction(ARCMT_None), ObjCMTAction(ObjCMT_None),
279 ProgramAction(frontend::ParseSyntaxOnly)
282 /// getInputKindForExtension - Return the appropriate input kind for a file
283 /// extension. For example, "c" would return IK_C.
285 /// \return The input kind for the extension, or IK_None if the extension is
287 static InputKind getInputKindForExtension(StringRef Extension);
290 } // end namespace clang