babel/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expression-switch-case/fallthrough-block/output.js

const x = n => {
  {
    var _do;
    switch (n) {
      case 0:
        {
          'a';
        }
      case 1:
        {
          _do = 'b';
          break;
        }
      case 2:
        {
          _do = 'c';
          break;
        }
      case 3:
        {
          break;
        }
      case 4:
        {
          'd';
          'e';
        }
      default:
        _do = 'f';
    }
  }
  return _do;
};