Coverage Report

Created: 2017-10-03 07:32

/Users/buildslave/jenkins/sharedspace/clang-stage2-coverage-R@2/llvm/tools/clang/lib/Frontend/FrontendActions.cpp
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Source (jump to first uncovered line)
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//===--- FrontendActions.cpp ----------------------------------------------===//
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
#include "clang/Frontend/FrontendActions.h"
11
#include "clang/AST/ASTConsumer.h"
12
#include "clang/Basic/FileManager.h"
13
#include "clang/Frontend/ASTConsumers.h"
14
#include "clang/Frontend/CompilerInstance.h"
15
#include "clang/Frontend/FrontendDiagnostic.h"
16
#include "clang/Frontend/MultiplexConsumer.h"
17
#include "clang/Frontend/Utils.h"
18
#include "clang/Lex/HeaderSearch.h"
19
#include "clang/Lex/Preprocessor.h"
20
#include "clang/Lex/PreprocessorOptions.h"
21
#include "clang/Serialization/ASTReader.h"
22
#include "clang/Serialization/ASTWriter.h"
23
#include "llvm/Support/FileSystem.h"
24
#include "llvm/Support/MemoryBuffer.h"
25
#include "llvm/Support/Path.h"
26
#include "llvm/Support/raw_ostream.h"
27
#include <memory>
28
#include <system_error>
29
30
using namespace clang;
31
32
//===----------------------------------------------------------------------===//
33
// Custom Actions
34
//===----------------------------------------------------------------------===//
35
36
std::unique_ptr<ASTConsumer>
37
0
InitOnlyAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
38
0
  return llvm::make_unique<ASTConsumer>();
39
0
}
40
41
0
void InitOnlyAction::ExecuteAction() {
42
0
}
43
44
//===----------------------------------------------------------------------===//
45
// AST Consumer Actions
46
//===----------------------------------------------------------------------===//
47
48
std::unique_ptr<ASTConsumer>
49
196
ASTPrintAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
50
196
  if (std::unique_ptr<raw_ostream> OS =
51
196
          CI.createDefaultOutputFile(false, InFile))
52
196
    return CreateASTPrinter(std::move(OS), CI.getFrontendOpts().ASTDumpFilter);
53
0
  return nullptr;
54
0
}
55
56
std::unique_ptr<ASTConsumer>
57
101
ASTDumpAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
58
101
  return CreateASTDumper(CI.getFrontendOpts().ASTDumpFilter,
59
101
                         CI.getFrontendOpts().ASTDumpDecls,
60
101
                         CI.getFrontendOpts().ASTDumpAll,
61
101
                         CI.getFrontendOpts().ASTDumpLookups);
62
101
}
63
64
std::unique_ptr<ASTConsumer>
65
0
ASTDeclListAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
66
0
  return CreateASTDeclNodeLister();
67
0
}
68
69
std::unique_ptr<ASTConsumer>
70
0
ASTViewAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
71
0
  return CreateASTViewer();
72
0
}
73
74
std::unique_ptr<ASTConsumer>
75
DeclContextPrintAction::CreateASTConsumer(CompilerInstance &CI,
76
2
                                          StringRef InFile) {
77
2
  return CreateDeclContextPrinter();
78
2
}
79
80
std::unique_ptr<ASTConsumer>
81
691
GeneratePCHAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
82
691
  std::string Sysroot;
83
691
  std::string OutputFile;
84
691
  std::unique_ptr<raw_pwrite_stream> OS =
85
691
      ComputeASTConsumerArguments(CI, InFile, Sysroot, OutputFile);
86
691
  if (!OS)
87
0
    return nullptr;
88
691
89
691
  
if (691
!CI.getFrontendOpts().RelocatablePCH691
)
90
690
    Sysroot.clear();
91
691
92
691
  auto Buffer = std::make_shared<PCHBuffer>();
93
691
  std::vector<std::unique_ptr<ASTConsumer>> Consumers;
94
691
  Consumers.push_back(llvm::make_unique<PCHGenerator>(
95
691
                        CI.getPreprocessor(), OutputFile, Sysroot,
96
691
                        Buffer, CI.getFrontendOpts().ModuleFileExtensions,
97
691
      /*AllowASTWithErrors*/CI.getPreprocessorOpts().AllowPCHWithCompilerErrors,
98
691
                        /*IncludeTimestamps*/
99
691
                          +CI.getFrontendOpts().IncludeTimestamps));
100
691
  Consumers.push_back(CI.getPCHContainerWriter().CreatePCHContainerGenerator(
101
691
      CI, InFile, OutputFile, std::move(OS), Buffer));
102
691
103
691
  return llvm::make_unique<MultiplexConsumer>(std::move(Consumers));
104
691
}
105
106
std::unique_ptr<raw_pwrite_stream>
107
GeneratePCHAction::ComputeASTConsumerArguments(CompilerInstance &CI,
108
                                               StringRef InFile,
109
                                               std::string &Sysroot,
110
768
                                               std::string &OutputFile) {
111
768
  Sysroot = CI.getHeaderSearchOpts().Sysroot;
112
768
  if (
CI.getFrontendOpts().RelocatablePCH && 768
Sysroot.empty()1
) {
113
0
    CI.getDiagnostics().Report(diag::err_relocatable_without_isysroot);
114
0
    return nullptr;
115
0
  }
116
768
117
768
  // We use createOutputFile here because this is exposed via libclang, and we
118
768
  // must disable the RemoveFileOnSignal behavior.
119
768
  // We use a temporary to avoid race conditions.
120
768
  std::unique_ptr<raw_pwrite_stream> OS =
121
768
      CI.createOutputFile(CI.getFrontendOpts().OutputFile, /*Binary=*/true,
122
768
                          /*RemoveFileOnSignal=*/false, InFile,
123
768
                          /*Extension=*/"", /*useTemporary=*/true);
124
768
  if (!OS)
125
0
    return nullptr;
126
768
127
768
  OutputFile = CI.getFrontendOpts().OutputFile;
128
768
  return OS;
129
768
}
130
131
691
bool GeneratePCHAction::shouldEraseOutputFiles() {
132
691
  if (getCompilerInstance().getPreprocessorOpts().AllowPCHWithCompilerErrors)
133
1
    return false;
134
690
  return ASTFrontendAction::shouldEraseOutputFiles();
135
690
}
136
137
691
bool GeneratePCHAction::BeginSourceFileAction(CompilerInstance &CI) {
138
691
  CI.getLangOpts().CompilingPCH = true;
139
691
  return true;
140
691
}
141
142
std::unique_ptr<ASTConsumer>
143
GenerateModuleAction::CreateASTConsumer(CompilerInstance &CI,
144
1.29k
                                        StringRef InFile) {
145
1.29k
  std::unique_ptr<raw_pwrite_stream> OS = CreateOutputFile(CI, InFile);
146
1.29k
  if (!OS)
147
0
    return nullptr;
148
1.29k
149
1.29k
  std::string OutputFile = CI.getFrontendOpts().OutputFile;
150
1.29k
  std::string Sysroot;
151
1.29k
152
1.29k
  auto Buffer = std::make_shared<PCHBuffer>();
153
1.29k
  std::vector<std::unique_ptr<ASTConsumer>> Consumers;
154
1.29k
155
1.29k
  Consumers.push_back(llvm::make_unique<PCHGenerator>(
156
1.29k
                        CI.getPreprocessor(), OutputFile, Sysroot,
157
1.29k
                        Buffer, CI.getFrontendOpts().ModuleFileExtensions,
158
1.29k
                        /*AllowASTWithErrors=*/false,
159
1.29k
                        /*IncludeTimestamps=*/
160
1.29k
                          +CI.getFrontendOpts().BuildingImplicitModule));
161
1.29k
  Consumers.push_back(CI.getPCHContainerWriter().CreatePCHContainerGenerator(
162
1.29k
      CI, InFile, OutputFile, std::move(OS), Buffer));
163
1.29k
  return llvm::make_unique<MultiplexConsumer>(std::move(Consumers));
164
1.29k
}
165
166
bool GenerateModuleFromModuleMapAction::BeginSourceFileAction(
167
1.27k
    CompilerInstance &CI) {
168
1.27k
  if (
!CI.getLangOpts().Modules1.27k
) {
169
1
    CI.getDiagnostics().Report(diag::err_module_build_requires_fmodules);
170
1
    return false;
171
1
  }
172
1.27k
173
1.27k
  return GenerateModuleAction::BeginSourceFileAction(CI);
174
1.27k
}
175
176
std::unique_ptr<raw_pwrite_stream>
177
GenerateModuleFromModuleMapAction::CreateOutputFile(CompilerInstance &CI,
178
1.27k
                                                    StringRef InFile) {
179
1.27k
  // If no output file was provided, figure out where this module would go
180
1.27k
  // in the module cache.
181
1.27k
  if (
CI.getFrontendOpts().OutputFile.empty()1.27k
) {
182
44
    StringRef ModuleMapFile = CI.getFrontendOpts().OriginalModuleMap;
183
44
    if (ModuleMapFile.empty())
184
44
      ModuleMapFile = InFile;
185
44
186
44
    HeaderSearch &HS = CI.getPreprocessor().getHeaderSearchInfo();
187
44
    CI.getFrontendOpts().OutputFile =
188
44
        HS.getCachedModuleFileName(CI.getLangOpts().CurrentModule,
189
44
                                   ModuleMapFile);
190
44
  }
191
1.27k
192
1.27k
  // We use createOutputFile here because this is exposed via libclang, and we
193
1.27k
  // must disable the RemoveFileOnSignal behavior.
194
1.27k
  // We use a temporary to avoid race conditions.
195
1.27k
  return CI.createOutputFile(CI.getFrontendOpts().OutputFile, /*Binary=*/true,
196
1.27k
                             /*RemoveFileOnSignal=*/false, InFile,
197
1.27k
                             /*Extension=*/"", /*useTemporary=*/true,
198
1.27k
                             /*CreateMissingDirectories=*/true);
199
1.27k
}
200
201
bool GenerateModuleInterfaceAction::BeginSourceFileAction(
202
27
    CompilerInstance &CI) {
203
27
  if (
!CI.getLangOpts().ModulesTS27
) {
204
0
    CI.getDiagnostics().Report(diag::err_module_interface_requires_modules_ts);
205
0
    return false;
206
0
  }
207
27
208
27
  CI.getLangOpts().setCompilingModule(LangOptions::CMK_ModuleInterface);
209
27
210
27
  return GenerateModuleAction::BeginSourceFileAction(CI);
211
27
}
212
213
std::unique_ptr<raw_pwrite_stream>
214
GenerateModuleInterfaceAction::CreateOutputFile(CompilerInstance &CI,
215
27
                                                StringRef InFile) {
216
27
  return CI.createDefaultOutputFile(/*Binary=*/true, InFile, "pcm");
217
27
}
218
219
7.57k
SyntaxOnlyAction::~SyntaxOnlyAction() {
220
7.57k
}
221
222
std::unique_ptr<ASTConsumer>
223
7.69k
SyntaxOnlyAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
224
7.69k
  return llvm::make_unique<ASTConsumer>();
225
7.69k
}
226
227
std::unique_ptr<ASTConsumer>
228
DumpModuleInfoAction::CreateASTConsumer(CompilerInstance &CI,
229
5
                                        StringRef InFile) {
230
5
  return llvm::make_unique<ASTConsumer>();
231
5
}
232
233
std::unique_ptr<ASTConsumer>
234
7
VerifyPCHAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
235
7
  return llvm::make_unique<ASTConsumer>();
236
7
}
237
238
7
void VerifyPCHAction::ExecuteAction() {
239
7
  CompilerInstance &CI = getCompilerInstance();
240
7
  bool Preamble = CI.getPreprocessorOpts().PrecompiledPreambleBytes.first != 0;
241
7
  const std::string &Sysroot = CI.getHeaderSearchOpts().Sysroot;
242
7
  std::unique_ptr<ASTReader> Reader(new ASTReader(
243
7
      CI.getPreprocessor(), &CI.getASTContext(), CI.getPCHContainerReader(),
244
7
      CI.getFrontendOpts().ModuleFileExtensions,
245
7
      Sysroot.empty() ? 
""0
:
Sysroot.c_str()7
,
246
7
      /*DisableValidation*/ false,
247
7
      /*AllowPCHWithCompilerErrors*/ false,
248
7
      /*AllowConfigurationMismatch*/ true,
249
7
      /*ValidateSystemInputs*/ true));
250
7
251
7
  Reader->ReadAST(getCurrentFile(),
252
0
                  Preamble ? serialization::MK_Preamble
253
7
                           : serialization::MK_PCH,
254
7
                  SourceLocation(),
255
7
                  ASTReader::ARR_ConfigurationMismatch);
256
7
}
257
258
namespace {
259
  /// \brief AST reader listener that dumps module information for a module
260
  /// file.
261
  class DumpModuleInfoListener : public ASTReaderListener {
262
    llvm::raw_ostream &Out;
263
264
  public:
265
5
    DumpModuleInfoListener(llvm::raw_ostream &Out) : Out(Out) { }
266
267
#define DUMP_BOOLEAN(Value, Text)                       \
268
630
    
Out.indent(4) << Text << ": " << (Value? 630
"Yes"117
:
"No"513
) << "\n"
269
270
5
    bool ReadFullVersionInformation(StringRef FullVersion) override {
271
5
      Out.indent(2)
272
5
        << "Generated by "
273
5
        << (FullVersion == getClangFullRepositoryVersion()? "this"
274
0
                                                          : "a different")
275
5
        << " Clang: " << FullVersion << "\n";
276
5
      return ASTReaderListener::ReadFullVersionInformation(FullVersion);
277
5
    }
278
279
5
    void ReadModuleName(StringRef ModuleName) override {
280
5
      Out.indent(2) << "Module name: " << ModuleName << "\n";
281
5
    }
282
5
    void ReadModuleMapFile(StringRef ModuleMapPath) override {
283
5
      Out.indent(2) << "Module map file: " << ModuleMapPath << "\n";
284
5
    }
285
286
    bool ReadLanguageOptions(const LangOptions &LangOpts, bool Complain,
287
5
                             bool AllowCompatibleDifferences) override {
288
5
      Out.indent(2) << "Language options:\n";
289
5
#define LANGOPT(Name, Bits, Default, Description) \
290
505
      DUMP_BOOLEAN(LangOpts.Name, Description);
291
5
#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
292
45
      Out.indent(4) << Description << ": "                   \
293
45
                    << static_cast<unsigned>(LangOpts.get##Name()) << "\n";
294
5
#define VALUE_LANGOPT(Name, Bits, Default, Description) \
295
35
      Out.indent(4) << Description << ": " << LangOpts.Name << "\n";
296
5
#define BENIGN_LANGOPT(Name, Bits, Default, Description)
297
5
#define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
298
5
#include "clang/Basic/LangOptions.def"
299
5
300
5
      if (
!LangOpts.ModuleFeatures.empty()5
) {
301
4
        Out.indent(4) << "Module features:\n";
302
4
        for (StringRef Feature : LangOpts.ModuleFeatures)
303
4
          Out.indent(6) << Feature << "\n";
304
4
      }
305
5
306
5
      return false;
307
5
    }
308
309
    bool ReadTargetOptions(const TargetOptions &TargetOpts, bool Complain,
310
5
                           bool AllowCompatibleDifferences) override {
311
5
      Out.indent(2) << "Target options:\n";
312
5
      Out.indent(4) << "  Triple: " << TargetOpts.Triple << "\n";
313
5
      Out.indent(4) << "  CPU: " << TargetOpts.CPU << "\n";
314
5
      Out.indent(4) << "  ABI: " << TargetOpts.ABI << "\n";
315
5
316
5
      if (
!TargetOpts.FeaturesAsWritten.empty()5
) {
317
0
        Out.indent(4) << "Target features:\n";
318
0
        for (unsigned I = 0, N = TargetOpts.FeaturesAsWritten.size();
319
0
             
I != N0
;
++I0
) {
320
0
          Out.indent(6) << TargetOpts.FeaturesAsWritten[I] << "\n";
321
0
        }
322
0
      }
323
5
324
5
      return false;
325
5
    }
326
327
    bool ReadDiagnosticOptions(IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts,
328
5
                               bool Complain) override {
329
5
      Out.indent(2) << "Diagnostic options:\n";
330
95
#define DIAGOPT(Name, Bits, Default) DUMP_BOOLEAN(DiagOpts->Name, #Name);
331
5
#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
332
15
      Out.indent(4) << #Name << ": " << DiagOpts->get##Name() << "\n";
333
5
#define VALUE_DIAGOPT(Name, Bits, Default) \
334
45
      Out.indent(4) << #Name << ": " << DiagOpts->Name << "\n";
335
5
#include "clang/Basic/DiagnosticOptions.def"
336
5
337
5
      Out.indent(4) << "Diagnostic flags:\n";
338
5
      for (const std::string &Warning : DiagOpts->Warnings)
339
4
        Out.indent(6) << "-W" << Warning << "\n";
340
5
      for (const std::string &Remark : DiagOpts->Remarks)
341
0
        Out.indent(6) << "-R" << Remark << "\n";
342
5
343
5
      return false;
344
5
    }
345
346
    bool ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts,
347
                                 StringRef SpecificModuleCachePath,
348
5
                                 bool Complain) override {
349
5
      Out.indent(2) << "Header search options:\n";
350
5
      Out.indent(4) << "System root [-isysroot=]: '" << HSOpts.Sysroot << "'\n";
351
5
      Out.indent(4) << "Resource dir [ -resource-dir=]: '" << HSOpts.ResourceDir << "'\n";
352
5
      Out.indent(4) << "Module Cache: '" << SpecificModuleCachePath << "'\n";
353
5
      DUMP_BOOLEAN(HSOpts.UseBuiltinIncludes,
354
5
                   "Use builtin include directories [-nobuiltininc]");
355
5
      DUMP_BOOLEAN(HSOpts.UseStandardSystemIncludes,
356
5
                   "Use standard system include directories [-nostdinc]");
357
5
      DUMP_BOOLEAN(HSOpts.UseStandardCXXIncludes,
358
5
                   "Use standard C++ include directories [-nostdinc++]");
359
5
      DUMP_BOOLEAN(HSOpts.UseLibcxx,
360
5
                   "Use libc++ (rather than libstdc++) [-stdlib=]");
361
5
      return false;
362
5
    }
363
364
    bool ReadPreprocessorOptions(const PreprocessorOptions &PPOpts,
365
                                 bool Complain,
366
5
                                 std::string &SuggestedPredefines) override {
367
5
      Out.indent(2) << "Preprocessor options:\n";
368
5
      DUMP_BOOLEAN(PPOpts.UsePredefines,
369
5
                   "Uses compiler/target-specific predefines [-undef]");
370
5
      DUMP_BOOLEAN(PPOpts.DetailedRecord,
371
5
                   "Uses detailed preprocessing record (for indexing)");
372
5
373
5
      if (
!PPOpts.Macros.empty()5
) {
374
4
        Out.indent(4) << "Predefined macros:\n";
375
4
      }
376
5
377
5
      for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator
378
5
             I = PPOpts.Macros.begin(), IEnd = PPOpts.Macros.end();
379
13
           
I != IEnd13
;
++I8
) {
380
8
        Out.indent(6);
381
8
        if (I->second)
382
0
          Out << "-U";
383
8
        else
384
8
          Out << "-D";
385
8
        Out << I->first << "\n";
386
8
      }
387
5
      return false;
388
5
    }
389
390
    /// Indicates that a particular module file extension has been read.
391
    void readModuleFileExtension(
392
2
           const ModuleFileExtensionMetadata &Metadata) override {
393
2
      Out.indent(2) << "Module file extension '"
394
2
                    << Metadata.BlockName << "' " << Metadata.MajorVersion
395
2
                    << "." << Metadata.MinorVersion;
396
2
      if (
!Metadata.UserInfo.empty()2
) {
397
2
        Out << ": ";
398
2
        Out.write_escaped(Metadata.UserInfo);
399
2
      }
400
2
401
2
      Out << "\n";
402
2
    }
403
#undef DUMP_BOOLEAN
404
  };
405
}
406
407
5
bool DumpModuleInfoAction::BeginInvocation(CompilerInstance &CI) {
408
5
  // The Object file reader also supports raw ast files and there is no point in
409
5
  // being strict about the module file format in -module-file-info mode.
410
5
  CI.getHeaderSearchOpts().ModuleFormat = "obj";
411
5
  return true;
412
5
}
413
414
5
void DumpModuleInfoAction::ExecuteAction() {
415
5
  // Set up the output file.
416
5
  std::unique_ptr<llvm::raw_fd_ostream> OutFile;
417
5
  StringRef OutputFileName = getCompilerInstance().getFrontendOpts().OutputFile;
418
5
  if (
!OutputFileName.empty() && 5
OutputFileName != "-"0
) {
419
0
    std::error_code EC;
420
0
    OutFile.reset(new llvm::raw_fd_ostream(OutputFileName.str(), EC,
421
0
                                           llvm::sys::fs::F_Text));
422
0
  }
423
5
  llvm::raw_ostream &Out = OutFile.get()? 
*OutFile.get()0
:
llvm::outs()5
;
424
5
425
5
  Out << "Information for module file '" << getCurrentFile() << "':\n";
426
5
  auto &FileMgr = getCompilerInstance().getFileManager();
427
5
  auto Buffer = FileMgr.getBufferForFile(getCurrentFile());
428
5
  StringRef Magic = (*Buffer)->getMemBufferRef().getBuffer();
429
5
  bool IsRaw = (Magic.size() >= 4 && 
Magic[0] == 'C'5
&&
Magic[1] == 'P'3
&&
430
5
                
Magic[2] == 'C'3
&&
Magic[3] == 'H'3
);
431
5
  Out << "  Module format: " << (IsRaw ? 
"raw"3
:
"obj"2
) << "\n";
432
5
433
5
  Preprocessor &PP = getCompilerInstance().getPreprocessor();
434
5
  DumpModuleInfoListener Listener(Out);
435
5
  HeaderSearchOptions &HSOpts =
436
5
      PP.getHeaderSearchInfo().getHeaderSearchOpts();
437
5
  ASTReader::readASTFileControlBlock(
438
5
      getCurrentFile(), FileMgr, getCompilerInstance().getPCHContainerReader(),
439
5
      /*FindModuleFileExtensions=*/true, Listener,
440
5
      HSOpts.ModulesValidateDiagnosticOptions);
441
5
}
442
443
//===----------------------------------------------------------------------===//
444
// Preprocessor Actions
445
//===----------------------------------------------------------------------===//
446
447
0
void DumpRawTokensAction::ExecuteAction() {
448
0
  Preprocessor &PP = getCompilerInstance().getPreprocessor();
449
0
  SourceManager &SM = PP.getSourceManager();
450
0
451
0
  // Start lexing the specified input file.
452
0
  const llvm::MemoryBuffer *FromFile = SM.getBuffer(SM.getMainFileID());
453
0
  Lexer RawLex(SM.getMainFileID(), FromFile, SM, PP.getLangOpts());
454
0
  RawLex.SetKeepWhitespaceMode(true);
455
0
456
0
  Token RawTok;
457
0
  RawLex.LexFromRawLexer(RawTok);
458
0
  while (
RawTok.isNot(tok::eof)0
) {
459
0
    PP.DumpToken(RawTok, true);
460
0
    llvm::errs() << "\n";
461
0
    RawLex.LexFromRawLexer(RawTok);
462
0
  }
463
0
}
464
465
3
void DumpTokensAction::ExecuteAction() {
466
3
  Preprocessor &PP = getCompilerInstance().getPreprocessor();
467
3
  // Start preprocessing the specified input file.
468
3
  Token Tok;
469
3
  PP.EnterMainSourceFile();
470
7
  do {
471
7
    PP.Lex(Tok);
472
7
    PP.DumpToken(Tok, true);
473
7
    llvm::errs() << "\n";
474
7
  } while (Tok.isNot(tok::eof));
475
3
}
476
477
5
void GeneratePTHAction::ExecuteAction() {
478
5
  CompilerInstance &CI = getCompilerInstance();
479
5
  std::unique_ptr<raw_pwrite_stream> OS =
480
5
      CI.createDefaultOutputFile(true, getCurrentFile());
481
5
  if (!OS)
482
0
    return;
483
5
484
5
  CacheTokens(CI.getPreprocessor(), OS.get());
485
5
}
486
487
35
void PreprocessOnlyAction::ExecuteAction() {
488
35
  Preprocessor &PP = getCompilerInstance().getPreprocessor();
489
35
490
35
  // Ignore unknown pragmas.
491
35
  PP.IgnorePragmas();
492
35
493
35
  Token Tok;
494
35
  // Start parsing the specified input file.
495
35
  PP.EnterMainSourceFile();
496
336
  do {
497
336
    PP.Lex(Tok);
498
336
  } while (Tok.isNot(tok::eof));
499
35
}
500
501
1.97k
void PrintPreprocessedAction::ExecuteAction() {
502
1.97k
  CompilerInstance &CI = getCompilerInstance();
503
1.97k
  // Output file may need to be set to 'Binary', to avoid converting Unix style
504
1.97k
  // line feeds (<LF>) to Microsoft style line feeds (<CR><LF>).
505
1.97k
  //
506
1.97k
  // Look to see what type of line endings the file uses. If there's a
507
1.97k
  // CRLF, then we won't open the file up in binary mode. If there is
508
1.97k
  // just an LF or CR, then we will open the file up in binary mode.
509
1.97k
  // In this fashion, the output format should match the input format, unless
510
1.97k
  // the input format has inconsistent line endings.
511
1.97k
  //
512
1.97k
  // This should be a relatively fast operation since most files won't have
513
1.97k
  // all of their source code on a single line. However, that is still a 
514
1.97k
  // concern, so if we scan for too long, we'll just assume the file should
515
1.97k
  // be opened in binary mode.
516
1.97k
  bool BinaryMode = true;
517
1.97k
  bool InvalidFile = false;
518
1.97k
  const SourceManager& SM = CI.getSourceManager();
519
1.97k
  const llvm::MemoryBuffer *Buffer = SM.getBuffer(SM.getMainFileID(), 
520
1.97k
                                                     &InvalidFile);
521
1.97k
  if (
!InvalidFile1.97k
) {
522
1.97k
    const char *cur = Buffer->getBufferStart();
523
1.97k
    const char *end = Buffer->getBufferEnd();
524
1.97k
    const char *next = (cur != end) ? 
cur + 11.71k
:
end259
;
525
1.97k
526
1.97k
    // Limit ourselves to only scanning 256 characters into the source
527
1.97k
    // file.  This is mostly a sanity check in case the file has no 
528
1.97k
    // newlines whatsoever.
529
1.97k
    if (
end - cur > 2561.97k
)
end = cur + 2561.62k
;
530
1.97k
531
134k
    while (
next < end134k
) {
532
133k
      if (
*cur == 0x0D133k
) { // CR
533
1
        if (*next == 0x0A)  // CRLF
534
1
          BinaryMode = false;
535
1
536
1
        break;
537
133k
      } else 
if (133k
*cur == 0x0A133k
) // LF
538
1.71k
        break;
539
132k
540
132k
      ++cur;
541
132k
      ++next;
542
132k
    }
543
1.97k
  }
544
1.97k
545
1.97k
  std::unique_ptr<raw_ostream> OS =
546
1.97k
      CI.createDefaultOutputFile(BinaryMode, getCurrentFile());
547
1.97k
  if (
!OS1.97k
)
return1
;
548
1.96k
549
1.96k
  // If we're preprocessing a module map, start by dumping the contents of the
550
1.96k
  // module itself before switching to the input buffer.
551
1.96k
  auto &Input = getCurrentInput();
552
1.96k
  if (
Input.getKind().getFormat() == InputKind::ModuleMap1.96k
) {
553
5
    if (
Input.isFile()5
) {
554
5
      (*OS) << "# 1 \"";
555
5
      OS->write_escaped(Input.getFile());
556
5
      (*OS) << "\"\n";
557
5
    }
558
5
    // FIXME: Include additional information here so that we don't need the
559
5
    // original source files to exist on disk.
560
5
    getCurrentModule()->print(*OS);
561
5
    (*OS) << "#pragma clang module contents\n";
562
5
  }
563
1.97k
564
1.97k
  DoPrintPreprocessedInput(CI.getPreprocessor(), OS.get(),
565
1.97k
                           CI.getPreprocessorOutputOpts());
566
1.97k
}
567
568
2
void PrintPreambleAction::ExecuteAction() {
569
2
  switch (getCurrentFileKind().getLanguage()) {
570
2
  case InputKind::C:
571
2
  case InputKind::CXX:
572
2
  case InputKind::ObjC:
573
2
  case InputKind::ObjCXX:
574
2
  case InputKind::OpenCL:
575
2
  case InputKind::CUDA:
576
2
    break;
577
2
      
578
0
  case InputKind::Unknown:
579
0
  case InputKind::Asm:
580
0
  case InputKind::LLVM_IR:
581
0
  case InputKind::RenderScript:
582
0
    // We can't do anything with these.
583
0
    return;
584
2
  }
585
2
586
2
  // We don't expect to find any #include directives in a preprocessed input.
587
2
  
if (2
getCurrentFileKind().isPreprocessed()2
)
588
0
    return;
589
2
590
2
  CompilerInstance &CI = getCompilerInstance();
591
2
  auto Buffer = CI.getFileManager().getBufferForFile(getCurrentFile());
592
2
  if (
Buffer2
) {
593
2
    unsigned Preamble =
594
2
        Lexer::ComputePreamble((*Buffer)->getBuffer(), CI.getLangOpts()).Size;
595
2
    llvm::outs().write((*Buffer)->getBufferStart(), Preamble);
596
2
  }
597
2
}