444   std::unique_ptr<CompilerInstance> Clang(  in Build()  local
449       Clang.get());  in Build()
451   Clang->setInvocation(std::move(PreambleInvocation));  in Build()
452   Clang->setDiagnostics(&Diagnostics);  in Build()
455   if (!Clang->createTarget())  in Build()
458   if (Clang->getFrontendOpts().Inputs.size() != 1 ||  in Build()
459       Clang->getFrontendOpts().Inputs[0].getKind().getFormat() !=  in Build()
461       Clang->getFrontendOpts().Inputs[0].getKind().getLanguage() ==  in Build()
468   ProcessWarningOptions(Diagnostics, Clang->getDiagnosticOpts());  in Build()
471       createVFSFromCompilerInvocation(Clang->getInvocation(), Diagnostics, VFS);  in Build()
474   Clang->setFileManager(new FileManager(Clang->getFileSystemOpts(), VFS));  in Build()
477   Clang->setSourceManager(  in Build()
478       new SourceManager(Diagnostics, Clang->getFileManager()));  in Build()
481   Clang->addDependencyCollector(PreambleDepCollector);  in Build()
483   Clang->getLangOpts().CompilingPCH = true;  in Build()
503   if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0]))  in Build()
508   Callbacks.BeforeExecute(*Clang);  in Build()
513     Clang->getPreprocessor().addPPCallbacks(std::move(DelegatedPPCallbacks));  in Build()
515     Clang->getPreprocessor().addCommentHandler(CommentHandler);  in Build()
517   Clang->getPreprocessor().addPPCallbacks(  in Build()
519           MissingFiles, Clang->getPreprocessor().getHeaderSearchInfo(),  in Build()
520           Clang->getSourceManager()));  in Build()
526   Callbacks.AfterExecute(*Clang);  in Build()
538   SourceManager &SourceMgr = Clang->getSourceManager();  in Build()
540     auto FileOrErr = Clang->getFileManager().getFile(Filename);  in Build()
560   Clang.reset();  in Build()