const { createLanguageServiceSourceFile, updateLanguageServiceSourceFile } = createUpdater();
  (ts as any).createLanguageServiceSourceFile = createLanguageServiceSourceFile;
  (ts as any).updateLanguageServiceSourceFile = updateLanguageServiceSourceFile;
  const configFilename = ts.findConfigFile(workspacePath, ts.sys.fileExists, 'tsconfig.json') ||
    ts.findConfigFile(workspacePath, ts.sys.fileExists, 'jsconfig.json');
  const configJson = configFilename && ts.readConfigFile(configFilename, ts.sys.readFile).config || {};
  const parsedConfig = ts.parseJsonConfigFileContent(configJson,
    ts.sys,
    workspacePath,
    compilerOptions,
    configFilename,
    undefined,
    [{ extension: 'vue', isMixedContent: true }]);

  // This files is an array of over 6k items with all js/ts/vue files in current workspace, including those in node_modules
  const files = parsedConfig.fileNames; 

  compilerOptions = parsedConfig.options;
  compilerOptions.allowNonTsExtensions = true;

    resolveModuleNames(moduleNames: string[], containingFile: string): ts.ResolvedModule[] {
      // This is run 6k times, one time for each file
      return moduleNames.map(name => {
        if (path.isAbsolute(name) || !isVue(name)) {
          return ts.resolveModuleName(name, containingFile, compilerOptions, ts.sys).resolvedModule;
        }
        else {
          const uri = Uri.file(path.join(path.dirname(containingFile), name));
          const resolvedFileName = uri.fsPath;
          if (ts.sys.fileExists(resolvedFileName)) {
            const doc = docs.get(resolvedFileName) ||
              jsDocuments.get(TextDocument.create(uri.toString(), 'vue', 0, ts.sys.readFile(resolvedFileName)));
            return {
              resolvedFileName,
              extension: doc.languageId === 'typescript' ? ts.Extension.Ts : ts.Extension.Js,
            };
          }
        }
      });
    },