/*
 * Copyright (c) 2020 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

module.exports = function(api) {
  api.cache(true);

  const presets = ['@babel/typescript'];
  const plugins = [
    '@babel/plugin-transform-modules-commonjs',
    '@babel/plugin-proposal-class-properties',
    [
      '@babel/plugin-transform-arrow-functions',
      {
        spec: true
      }
    ]
  ];

  return {
    presets,
    plugins
  };
};