Ejemplo n.º 1
0
std::unique_ptr<CompilerInstance>
prepareCompilerInstance(std::unique_ptr<clang::CompilerInvocation> CI,
                        const PrecompiledPreamble *Preamble,
                        std::unique_ptr<llvm::MemoryBuffer> Buffer,
                        std::shared_ptr<PCHContainerOperations> PCHs,
                        IntrusiveRefCntPtr<vfs::FileSystem> VFS,
                        DiagnosticConsumer &DiagsClient) {
  assert(VFS && "VFS is null");
  assert(!CI->getPreprocessorOpts().RetainRemappedFileBuffers &&
         "Setting RetainRemappedFileBuffers to true will cause a memory leak "
         "of ContentsBuffer");

  // NOTE: we use Buffer.get() when adding remapped files, so we have to make
  // sure it will be released if no error is emitted.
  if (Preamble) {
    Preamble->OverridePreamble(*CI, VFS, Buffer.get());
  } else {
    CI->getPreprocessorOpts().addRemappedFile(
        CI->getFrontendOpts().Inputs[0].getFile(), Buffer.get());
  }

  auto Clang = llvm::make_unique<CompilerInstance>(PCHs);
  Clang->setInvocation(std::move(CI));
  Clang->createDiagnostics(&DiagsClient, false);

  if (auto VFSWithRemapping = createVFSFromCompilerInvocation(
          Clang->getInvocation(), Clang->getDiagnostics(), VFS))
    VFS = VFSWithRemapping;
  Clang->setVirtualFileSystem(VFS);

  Clang->setTarget(TargetInfo::CreateTargetInfo(
      Clang->getDiagnostics(), Clang->getInvocation().TargetOpts));
  if (!Clang->hasTarget())
    return nullptr;

  // RemappedFileBuffers will handle the lifetime of the Buffer pointer,
  // release it.
  Buffer.release();
  return Clang;
}
Ejemplo n.º 2
0
std::unique_ptr<CompilerInstance>
BuildCompilerInstance(ArrayRef<const char *> ClangArgv) {
  auto Ins = llvm::make_unique<CompilerInstance>();
  auto DC = llvm::make_unique<TestDiagnosticConsumer>();
  const bool ShouldOwnClient = true;
  Ins->createDiagnostics(DC.release(), ShouldOwnClient);

  auto Inv = llvm::make_unique<CompilerInvocation>();

  CompilerInvocation::CreateFromArgs(*Inv, ClangArgv.data(),
                                     &ClangArgv.data()[ClangArgv.size()],
                                     Ins->getDiagnostics());

  Inv->getLangOpts()->CPlusPlus = true;
  Inv->getLangOpts()->CPlusPlus11 = true;
  Inv->getHeaderSearchOpts().UseLibcxx = true;
  Inv->getLangOpts()->Bool = true;
  Inv->getLangOpts()->WChar = true;
  Inv->getLangOpts()->Blocks = true;
  Inv->getLangOpts()->DebuggerSupport = true;
  Inv->getLangOpts()->SpellChecking = false;
  Inv->getLangOpts()->ThreadsafeStatics = false;
  Inv->getLangOpts()->AccessControl = false;
  Inv->getLangOpts()->DollarIdents = true;
  Inv->getCodeGenOpts().setDebugInfo(codegenoptions::FullDebugInfo);
  Inv->getTargetOpts().Triple = llvm::sys::getDefaultTargetTriple();

  Ins->setInvocation(Inv.release());

  TargetInfo *TI = TargetInfo::CreateTargetInfo(
      Ins->getDiagnostics(), Ins->getInvocation().TargetOpts);
  Ins->setTarget(TI);
  Ins->getTarget().adjust(Ins->getLangOpts());
  Ins->createFileManager();
  Ins->createSourceManager(Ins->getFileManager());
  Ins->createPreprocessor(TU_Complete);

  return Ins;
}