text: /*
  Copyright (c) 2021 The swc Project Developers
  
  Permission is hereby granted, free of charge, to any
  person obtaining a copy of this software and associated
  documentation files (the "Software"), to deal in the
  Software without restriction, including without
  limitation the rights to use, copy, modify, merge,
  publish, distribute, sublicense, and/or sell copies of
  the Software, and to permit persons to whom the Software
  is furnished to do so, subject to the following
  conditions:
  
  The above copyright notice and this permission notice
  shall be included in all copies or substantial portions
  of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
  ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
  TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
  PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
  SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
  IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  DEALINGS IN THE SOFTWARE.
  */
  
  import vm from 'vm'
  import { transformSync } from './index'
  import { getJestSWCOptions } from './options'
  
  console.warn(
    '"next/jest" is currently experimental. https://nextjs.org/docs/messages/experimental-jest-transformer'
  )
  
  /**
   * Loads closest package.json in the directory hierarchy
   */
  function loadClosestPackageJson(attempts = 1) {
    if (attempts > 5) {
      throw new Error("Can't resolve main package.json file")
    }
    var mainPath = attempts === 1 ? './' : Array(attempts).join('../')
    try {
      return require(mainPath + 'package.json')
    } catch (e) {
      return loadClosestPackageJson(attempts + 1)
    }
  }
  
  const packageConfig = loadClosestPackageJson()
  const isEsmProject = packageConfig.type === 'module'
  
  // Jest use the `vm` [Module API](https://nodejs.org/api/vm.html#vm_class_vm_module) for ESM.
  // see https://github.com/facebook/jest/issues/9430
  const isSupportEsm = 'Module' in vm
  
  module.exports = {
    process(src, filename, jestOptions) {
      if (!/\.[jt]sx?$/.test(filename)) {
        return src
      }
  
      let swcTransformOpts = getJestSWCOptions({
        filename,
        esm: isSupportEsm && isEsm(filename, jestOptions),
      })
  
      return transformSync(src, { ...swcTransformOpts, filename })
    },
  }
  
  function getJestConfig(jestConfig) {
    return 'config' in jestConfig
      ? // jest 27
        jestConfig.config
      : // jest 26
        jestConfig
  }
  
  function isEsm(filename, jestOptions) {
    return (
      (/\.jsx?$/.test(filename) && isEsmProject) ||
      getJestConfig(jestOptions).extensionsToTreatAsEsm?.find((ext) =>
        filename.endsWith(ext)
      )
    )
  }
  