.babelrc.js

const withTests = {
  presets: [
    [
      '@babel/preset-env',
      { shippedProposals: true, useBuiltIns: 'usage', corejs: '3', targets: { node: 'current' } },
    ],
  ],
  plugins: [
    'babel-plugin-require-context-hook',
    'babel-plugin-dynamic-import-node',
    '@babel/plugin-transform-runtime',
  ],
};

module.exports = {
  ignore: [
    './lib/codemod/src/transforms/__testfixtures__',
    './lib/postinstall/src/__testfixtures__',
  ],
  presets: [
    ['@babel/preset-env', { shippedProposals: true, useBuiltIns: 'usage', corejs: '3' }],
    '@babel/preset-typescript',
    '@babel/preset-react',
    '@babel/preset-flow',
  ],
  plugins: [
    [
      '@babel/plugin-proposal-decorators',
      {
        legacy: true,
      },
    ],
    ['@babel/plugin-proposal-class-properties', { loose: true }],
    '@babel/plugin-proposal-export-default-from',
    '@babel/plugin-syntax-dynamic-import',
    ['@babel/plugin-proposal-object-rest-spread', { loose: true, useBuiltIns: true }],
    'babel-plugin-macros',
    ['emotion', { sourceMap: true, autoLabel: true }],
  ],
  env: {
    test: withTests,
  },
};