create-expo-cljs-app/template/node_modules/react-native-codegen/lib/parsers/flow/modules/utils.js

Create a react native application with Expo and Shadow-CLJS!

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 *
 * @format
 */
'use strict';

function unwrapNullable(x) {
  if (x.type === 'NullableTypeAnnotation') {
    return [x.typeAnnotation, true];
  }

  return [x, false];
}

function wrapNullable(nullable, typeAnnotation) {
  if (!nullable) {
    return typeAnnotation;
  }

  return {
    type: 'NullableTypeAnnotation',
    typeAnnotation,
  };
}

module.exports = {
  unwrapNullable,
  wrapNullable,
};