function metroImportDefault()

in packages/metro-runtime/src/polyfills/require.js [196:218]

• 17 lines of code
• 7 McCabe index (conditional complexity)

function metroImportDefault(moduleId: ModuleID | VerboseModuleNameForDev) {
  if (__DEV__ && typeof moduleId === 'string') {
    const verboseName = moduleId;
    moduleId = verboseNamesToModuleIds[verboseName];
  }

  //$FlowFixMe: at this point we know that moduleId is a number
  const moduleIdReallyIsNumber: number = moduleId;

  if (
    modules[moduleIdReallyIsNumber] &&
    modules[moduleIdReallyIsNumber].importedDefault !== EMPTY
  ) {
    return modules[moduleIdReallyIsNumber].importedDefault;
  }

  const exports = metroRequire(moduleIdReallyIsNumber);
  const importedDefault =
    exports && exports.__esModule ? exports.default : exports;

  // $FlowFixMe The metroRequire call above will throw if modules[id] is null
  return (modules[moduleIdReallyIsNumber].importedDefault = importedDefault);
}