void CompilerInstance::createPreprocessor() {
const PreprocessorOptions &PPOpts = getPreprocessorOpts();
// Create a PTH manager if we are using some form of a token cache.
PTHManager *PTHMgr = 0;
if (!PPOpts.TokenCache.empty())
PTHMgr = PTHManager::Create(PPOpts.TokenCache, getDiagnostics());
// Create the Preprocessor.
HeaderSearch *HeaderInfo = new HeaderSearch(getFileManager(),
getDiagnostics(),
getLangOpts(),
&getTarget());
PP = new Preprocessor(getDiagnostics(), getLangOpts(), &getTarget(),
getSourceManager(), *HeaderInfo, *this, PTHMgr,
/*OwnsHeaderSearch=*/true);
// Note that this is different then passing PTHMgr to Preprocessor's ctor.
// That argument is used as the IdentifierInfoLookup argument to
// IdentifierTable's ctor.
if (PTHMgr) {
PTHMgr->setPreprocessor(&*PP);
PP->setPTHManager(PTHMgr);
}
if (PPOpts.DetailedRecord)
PP->createPreprocessingRecord(PPOpts.DetailedRecordConditionalDirectives);
InitializePreprocessor(*PP, PPOpts, getHeaderSearchOpts(), getFrontendOpts());
// Set up the module path, including the hash for the
// module-creation options.
SmallString<256> SpecificModuleCache(
getHeaderSearchOpts().ModuleCachePath);
if (!getHeaderSearchOpts().DisableModuleHash)
llvm::sys::path::append(SpecificModuleCache,
getInvocation().getModuleHash());
PP->getHeaderSearchInfo().setModuleCachePath(SpecificModuleCache);
// Handle generating dependencies, if requested.
const DependencyOutputOptions &DepOpts = getDependencyOutputOpts();
if (!DepOpts.OutputFile.empty())
AttachDependencyFileGen(*PP, DepOpts);
if (!DepOpts.DOTOutputFile.empty())
AttachDependencyGraphGen(*PP, DepOpts.DOTOutputFile,
getHeaderSearchOpts().Sysroot);
// Handle generating header include information, if requested.
if (DepOpts.ShowHeaderIncludes)
AttachHeaderIncludeGen(*PP);
if (!DepOpts.HeaderIncludeOutputFile.empty()) {
StringRef OutputPath = DepOpts.HeaderIncludeOutputFile;
if (OutputPath == "-")
OutputPath = "";
AttachHeaderIncludeGen(*PP, /*ShowAllHeaders=*/true, OutputPath,
/*ShowDepth=*/false);
}
}
/// AddImplicitIncludePTH - Add an implicit \#include using the original file
/// used to generate a PTH cache.
static void AddImplicitIncludePTH(MacroBuilder &Builder, Preprocessor &PP,
StringRef ImplicitIncludePTH) {
PTHManager *P = PP.getPTHManager();
// Null check 'P' in the corner case where it couldn't be created.
const char *OriginalFile = P ? P->getOriginalSourceFile() : nullptr;
if (!OriginalFile) {
PP.getDiagnostics().Report(diag::err_fe_pth_file_has_no_source_header)
<< ImplicitIncludePTH;
return;
}
AddImplicitInclude(Builder, OriginalFile);
}
/// AddImplicitIncludePTH - Add an implicit #include using the original file
/// used to generate a PTH cache.
static void AddImplicitIncludePTH(std::vector<char> &Buf, Preprocessor &PP,
const std::string& ImplicitIncludePTH) {
PTHManager *P = PP.getPTHManager();
assert(P && "No PTHManager.");
const char *OriginalFile = P->getOriginalSourceFile();
if (!OriginalFile) {
PP.getDiagnostics().Report(diag::err_fe_pth_file_has_no_source_header)
<< ImplicitIncludePTH;
return;
}
AddImplicitInclude(Buf, OriginalFile);
}
Preprocessor *
CompilerInstance::createPreprocessor(Diagnostic &Diags,
const LangOptions &LangInfo,
const PreprocessorOptions &PPOpts,
const HeaderSearchOptions &HSOpts,
const DependencyOutputOptions &DepOpts,
const TargetInfo &Target,
const FrontendOptions &FEOpts,
SourceManager &SourceMgr,
FileManager &FileMgr) {
// Create a PTH manager if we are using some form of a token cache.
PTHManager *PTHMgr = 0;
if (!PPOpts.TokenCache.empty())
PTHMgr = PTHManager::Create(PPOpts.TokenCache, Diags);
// Create the Preprocessor.
HeaderSearch *HeaderInfo = new HeaderSearch(FileMgr);
Preprocessor *PP = new Preprocessor(Diags, LangInfo, Target,
SourceMgr, *HeaderInfo, PTHMgr,
/*OwnsHeaderSearch=*/true);
// Note that this is different then passing PTHMgr to Preprocessor's ctor.
// That argument is used as the IdentifierInfoLookup argument to
// IdentifierTable's ctor.
if (PTHMgr) {
PTHMgr->setPreprocessor(PP);
PP->setPTHManager(PTHMgr);
}
if (PPOpts.DetailedRecord)
PP->createPreprocessingRecord();
InitializePreprocessor(*PP, PPOpts, HSOpts, FEOpts);
// Handle generating dependencies, if requested.
if (!DepOpts.OutputFile.empty())
AttachDependencyFileGen(*PP, DepOpts);
// Handle generating header include information, if requested.
if (DepOpts.ShowHeaderIncludes)
AttachHeaderIncludeGen(*PP);
if (!DepOpts.HeaderIncludeOutputFile.empty()) {
llvm::StringRef OutputPath = DepOpts.HeaderIncludeOutputFile;
if (OutputPath == "-")
OutputPath = "";
AttachHeaderIncludeGen(*PP, /*ShowAllHeaders=*/true, OutputPath);
}
return PP;
}
/// AddImplicitIncludePTH - Add an implicit #include using the original file
/// used to generate a PTH cache.
static void AddImplicitIncludePTH(std::vector<char> &Buf, Preprocessor &PP,
const std::string& ImplicitIncludePTH) {
PTHManager *P = PP.getPTHManager();
assert(P && "No PTHManager.");
const char *OriginalFile = P->getOriginalSourceFile();
if (!OriginalFile) {
assert(!ImplicitIncludePTH.empty());
fprintf(stderr, "error: PTH file '%s' does not designate an original "
"source header file for -include-pth\n",
ImplicitIncludePTH.c_str());
exit (1);
}
AddImplicitInclude(Buf, OriginalFile);
}
Preprocessor *
CompilerInstance::createPreprocessor(Diagnostic &Diags,
const LangOptions &LangInfo,
const PreprocessorOptions &PPOpts,
const HeaderSearchOptions &HSOpts,
const DependencyOutputOptions &DepOpts,
const TargetInfo &Target,
SourceManager &SourceMgr,
FileManager &FileMgr) {
// Create a PTH manager if we are using some form of a token cache.
PTHManager *PTHMgr = 0;
if (!PPOpts.TokenCache.empty())
PTHMgr = PTHManager::Create(PPOpts.TokenCache, Diags);
// Create the Preprocessor.
HeaderSearch *HeaderInfo = new HeaderSearch(FileMgr);
Preprocessor *PP = new Preprocessor(Diags, LangInfo, Target,
SourceMgr, *HeaderInfo, PTHMgr,
/*OwnsHeaderSearch=*/true);
// Note that this is different then passing PTHMgr to Preprocessor's ctor.
// That argument is used as the IdentifierInfoLookup argument to
// IdentifierTable's ctor.
if (PTHMgr) {
PTHMgr->setPreprocessor(PP);
PP->setPTHManager(PTHMgr);
}
InitializePreprocessor(*PP, PPOpts, HSOpts);
// Handle generating dependencies, if requested.
if (!DepOpts.OutputFile.empty())
AttachDependencyFileGen(*PP, DepOpts);
return PP;
}
