@parcel/transformer-babel/lib/babel7.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = babel7;

var _package = _interopRequireDefault(require("../package.json"));

var _assert = _interopRequireDefault(require("assert"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

const transformerVersion = _package.default.version;
(0, _assert.default)(typeof transformerVersion === 'string');

async function babel7(asset, options, babelOptions, additionalPlugins = []) {
  // If this is an internally generated config, use our internal @babel/core,
  // otherwise require a local version from the package we're compiling.
  let babel = babelOptions.internal ? require('@babel/core') : await options.packageManager.require('@babel/core', asset.filePath);

  let config = _objectSpread({}, babelOptions.config, {
    plugins: additionalPlugins.concat(babelOptions.config.plugins),
    code: false,
    ast: true,
    filename: asset.filePath,
    babelrc: false,
    configFile: false,
    parserOpts: _objectSpread({}, babelOptions.config.parserOpts, {
      allowReturnOutsideFunction: true,
      strictMode: false,
      sourceType: 'module',
      plugins: ['dynamicImport']
    }),
    caller: {
      name: 'parcel',
      version: transformerVersion,
      targets: JSON.stringify(babelOptions.targets)
    }
  });

  let code = await asset.getCode();
  let res;

  if (asset.ast) {
    res = babel.transformFromAstSync(asset.ast.program, code, config);
  } else {
    res = babel.transformSync(code, config);
  }

  if (res.ast) {
    return {
      type: 'babel',
      version: '7.0.0',
      program: res.ast,
      isDirty: true
    };
  }
}