void c2ffi::init_ci(config &c, clang::CompilerInstance &ci) {
using clang::DiagnosticOptions;
using clang::TextDiagnosticPrinter;
using clang::TargetOptions;
using clang::TargetInfo;
ci.getInvocation().setLangDefaults(ci.getLangOpts(), c.kind,
clang::LangStandard::lang_unspecified);
DiagnosticOptions *dopt = new DiagnosticOptions;
TextDiagnosticPrinter *tpd =
new TextDiagnosticPrinter(llvm::errs(), dopt, false);
ci.createDiagnostics(tpd);
llvm::IntrusiveRefCntPtr<TargetOptions> *pto =
new llvm::IntrusiveRefCntPtr<TargetOptions>(new TargetOptions());
if(c.arch == "")
(*pto)->Triple = llvm::sys::getDefaultTargetTriple();
else
(*pto)->Triple = c.arch;
TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), pto->getPtr());
ci.setTarget(pti);
ci.createFileManager();
ci.createSourceManager(ci.getFileManager());
ci.createPreprocessor(clang::TU_Complete);
ci.getPreprocessorOpts().UsePredefines = false;
}
ClangParser()
{
// Usually all examples try to build the CompilerInstance Object from CompilerInvocation object.
// However, CompilterInstance already has an in-built CompilerInvocation object. So we use it.
// Only problem is: target options are not set correctly for the in-built object. We do it manually.
// This below line is just to assert that the object exist.
clang::CompilerInvocation& invocation = m_CompilerInstance.getInvocation();
// Diagnostics is needed - set it up
m_CompilerInstance.createDiagnostics();
// set the include directories path
clang::HeaderSearchOptions & headerSearchOptions = m_CompilerInstance.getHeaderSearchOpts();
headerSearchOptions.AddPath("C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\VC\\include", clang::frontend::IncludeDirGroup::Angled, false, false);
// headerSearchOptions.Verbose = true;
// set few options
clang::LangOptions& langOptions = m_CompilerInstance.getLangOpts();
langOptions.CPlusPlus = 1;
langOptions.Bool = 1;
langOptions.RTTI = 0;
#if defined(_MSC_VER)
langOptions.MicrosoftExt = 1;
langOptions.MSVCCompat = 1;
langOptions.MSBitfields = 1;
langOptions.DelayedTemplateParsing = 1; // MSVC parses templates at the time of actual use
m_CompilerInstance.getDiagnosticOpts().setFormat(clang::TextDiagnosticFormat::Msvc);
//clInstance.getTargetOpts().ABI = "microsoft";
#endif
// Need to set the source manager before AST
m_CompilerInstance.createFileManager();
m_CompilerInstance.createSourceManager(m_CompilerInstance.getFileManager());
// Need to set the target before AST. Adjust the default target options and create a target
m_CompilerInstance.getTargetOpts().Triple = llvm::sys::getProcessTriple();
m_CompilerInstance.setTarget(clang::TargetInfo::CreateTargetInfo(m_CompilerInstance.getDiagnostics(), &m_CompilerInstance.getTargetOpts()));
// Create pre-processor and AST Context
m_CompilerInstance.createPreprocessor(clang::TranslationUnitKind::TU_Module);
m_CompilerInstance.createASTContext();
if (m_CompilerInstance.hasPreprocessor())
{
clang::Preprocessor & preprocessor = m_CompilerInstance.getPreprocessor();
preprocessor.getBuiltinInfo().InitializeBuiltins(preprocessor.getIdentifierTable(), preprocessor.getLangOpts());
}
}
void c2ffi::init_ci(config &c, clang::CompilerInstance &ci) {
using clang::DiagnosticOptions;
using clang::TextDiagnosticPrinter;
using clang::TargetOptions;
using clang::TargetInfo;
DiagnosticOptions *dopt = new DiagnosticOptions;
TextDiagnosticPrinter *tpd =
new TextDiagnosticPrinter(llvm::errs(), dopt, false);
ci.createDiagnostics(tpd);
std::shared_ptr<TargetOptions> pto =
std::shared_ptr<TargetOptions>(new TargetOptions());
if(c.arch == "")
pto->Triple = llvm::sys::getDefaultTargetTriple();
else
pto->Triple = c.arch;
TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), pto);
clang::LangOptions &lo = ci.getLangOpts();
switch(pti->getTriple().getEnvironment()) {
case llvm::Triple::EnvironmentType::GNU:
lo.GNUMode = 1;
break;
case llvm::Triple::EnvironmentType::MSVC:
lo.MSVCCompat = 1;
lo.MicrosoftExt = 1;
break;
default:
std::cerr << "c2ffi warning: Unhandled environment: '"
<< pti->getTriple().getEnvironmentName().str()
<< "' for triple '" << c.arch
<< "'" << std::endl;
}
ci.getInvocation().setLangDefaults(lo, c.kind, c.std);
ci.setTarget(pti);
ci.createFileManager();
ci.createSourceManager(ci.getFileManager());
ci.createPreprocessor(clang::TU_Complete);
ci.getPreprocessorOpts().UsePredefines = false;
ci.getPreprocessorOutputOpts().ShowCPP = c.preprocess_only;
ci.getPreprocessor().setPreprocessedOutput(c.preprocess_only);
}
