FrontendOptions.h revision 6649014b792f8a4b1bc1e8be8f844a72220af508 
1//===--- FrontendOptions.h --------------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLVM_CLANG_FRONTEND_FRONTENDOPTIONS_H
11#define LLVM_CLANG_FRONTEND_FRONTENDOPTIONS_H
12
13#include "clang/Frontend/CommandLineSourceLoc.h"
14#include "clang/Frontend/FrontendAction.h"
15#include "llvm/ADT/StringRef.h"
16#include <string>
17#include <vector>
18
19namespace clang {
20
21namespace frontend {
22  enum ActionKind {
23    ASTDump,                ///< Parse ASTs and dump them.
24    ASTDumpXML,             ///< Parse ASTs and dump them in XML.
25    ASTPrint,               ///< Parse ASTs and print them.
26    ASTView,                ///< Parse ASTs and view them in Graphviz.
27    DumpRawTokens,          ///< Dump out raw tokens.
28    DumpTokens,             ///< Dump out preprocessed tokens.
29    EmitAssembly,           ///< Emit a .s file.
30    EmitBC,                 ///< Emit a .bc file.
31    EmitHTML,               ///< Translate input source into HTML.
32    EmitLLVM,               ///< Emit a .ll file.
33    EmitLLVMOnly,           ///< Generate LLVM IR, but do not emit anything.
34    EmitCodeGenOnly,        ///< Generate machine code, but don't emit anything.
35    EmitObj,                ///< Emit a .o file.
36    FixIt,                  ///< Parse and apply any fixits to the source.
37    GenerateModule,         ///< Generate pre-compiled module.
38    GeneratePCH,            ///< Generate pre-compiled header.
39    GeneratePTH,            ///< Generate pre-tokenized header.
40    InitOnly,               ///< Only execute frontend initialization.
41    ParseSyntaxOnly,        ///< Parse and perform semantic analysis.
42    PluginAction,           ///< Run a plugin action, \see ActionName.
43    PrintDeclContext,       ///< Print DeclContext and their Decls.
44    PrintPreamble,          ///< Print the "preamble" of the input file
45    PrintPreprocessedInput, ///< -E mode.
46    RewriteMacros,          ///< Expand macros but not #includes.
47    RewriteObjC,            ///< ObjC->C Rewriter.
48    RewriteTest,            ///< Rewriter playground
49    RunAnalysis,            ///< Run one or more source code analyses.
50    RunPreprocessorOnly     ///< Just lex, no output.
51  };
52}
53
54/// FrontendOptions - Options for controlling the behavior of the frontend.
55class FrontendOptions {
56public:
57  unsigned DisableFree : 1;                ///< Disable memory freeing on exit.
58  unsigned RelocatablePCH : 1;             ///< When generating PCH files,
59                                           /// instruct the AST writer to create
60                                           /// relocatable PCH files.
61  unsigned ShowHelp : 1;                   ///< Show the -help text.
62  unsigned ShowMacrosInCodeCompletion : 1; ///< Show macros in code completion
63                                           /// results.
64  unsigned ShowCodePatternsInCodeCompletion : 1; ///< Show code patterns in code
65                                                 /// completion results.
66  unsigned ShowGlobalSymbolsInCodeCompletion : 1; ///< Show top-level decls in
67                                                  /// code completion results.
68  unsigned ShowStats : 1;                  ///< Show frontend performance
69                                           /// metrics and statistics.
70  unsigned ShowTimers : 1;                 ///< Show timers for individual
71                                           /// actions.
72  unsigned ShowVersion : 1;                ///< Show the -version text.
73  unsigned FixWhatYouCan : 1;              ///< Apply fixes even if there are
74                                           /// unfixable errors.
75  unsigned ARCMTMigrateEmitARCErrors : 1;  /// Emit ARC errors even if the
76                                           /// migrator can fix them
77
78  enum {
79    ARCMT_None,
80    ARCMT_Check,
81    ARCMT_Modify,
82    ARCMT_Migrate
83  } ARCMTAction;
84
85  std::string ARCMTMigrateDir;
86  std::string ARCMTMigrateReportOut;
87
88  /// The input files and their types.
89  std::vector<std::pair<InputKind, std::string> > Inputs;
90
91  /// The output file, if any.
92  std::string OutputFile;
93
94  /// If given, the new suffix for fix-it rewritten files.
95  std::string FixItSuffix;
96
97  /// If given, enable code completion at the provided location.
98  ParsedSourceLocation CodeCompletionAt;
99
100  /// The frontend action to perform.
101  frontend::ActionKind ProgramAction;
102
103  /// The name of the action to run when using a plugin action.
104  std::string ActionName;
105
106  /// Args to pass to the plugin
107  std::vector<std::string> PluginArgs;
108
109  /// The list of plugin actions to run in addition to the normal action.
110  std::vector<std::string> AddPluginActions;
111
112  /// Args to pass to the additional plugins
113  std::vector<std::vector<std::string> > AddPluginArgs;
114
115  /// The list of plugins to load.
116  std::vector<std::string> Plugins;
117
118  /// \brief The list of AST files to merge.
119  std::vector<std::string> ASTMergeFiles;
120
121  /// \brief A list of arguments to forward to LLVM's option processing; this
122  /// should only be used for debugging and experimental features.
123  std::vector<std::string> LLVMArgs;
124
125public:
126  FrontendOptions() {
127    DisableFree = 0;
128    ProgramAction = frontend::ParseSyntaxOnly;
129    ActionName = "";
130    RelocatablePCH = 0;
131    ShowHelp = 0;
132    ShowMacrosInCodeCompletion = 0;
133    ShowCodePatternsInCodeCompletion = 0;
134    ShowGlobalSymbolsInCodeCompletion = 1;
135    ShowStats = 0;
136    ShowTimers = 0;
137    ShowVersion = 0;
138    ARCMTAction = ARCMT_None;
139    ARCMTMigrateEmitARCErrors = 0;
140  }
141
142  /// getInputKindForExtension - Return the appropriate input kind for a file
143  /// extension. For example, "c" would return IK_C.
144  ///
145  /// \return The input kind for the extension, or IK_None if the extension is
146  /// not recognized.
147  static InputKind getInputKindForExtension(StringRef Extension);
148};
149
150}  // end namespace clang
151
152#endif
153