73 lines
2.4 KiB
JavaScript
73 lines
2.4 KiB
JavaScript
/*
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Copyright (c) 2021 The swc Project Developers
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Permission is hereby granted, free of charge, to any
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person obtaining a copy of this software and associated
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documentation files (the "Software"), to deal in the
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Software without restriction, including without
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limitation the rights to use, copy, modify, merge,
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publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software
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is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice
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shall be included in all copies or substantial portions
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of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
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ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
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TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
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IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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import vm from 'vm'
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import { transformSync } from './index'
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import { getJestSWCOptions } from './options'
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// Jest use the `vm` [Module API](https://nodejs.org/api/vm.html#vm_class_vm_module) for ESM.
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// see https://github.com/facebook/jest/issues/9430
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const isSupportEsm = 'Module' in vm
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module.exports = {
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createTransformer: (inputOptions) => ({
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process(src, filename, jestOptions) {
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const jestConfig = getJestConfig(jestOptions)
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let swcTransformOpts = getJestSWCOptions({
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// When target is node it's similar to the server option set in SWC.
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isServer:
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jestConfig.testEnvironment && jestConfig.testEnvironment === 'node',
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filename,
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nextConfig: inputOptions.nextConfig,
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jsConfig: inputOptions.jsConfig,
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resolvedBaseUrl: inputOptions.resolvedBaseUrl,
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esm:
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isSupportEsm &&
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isEsm(Boolean(inputOptions.isEsmProject), filename, jestConfig),
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})
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return transformSync(src, { ...swcTransformOpts, filename })
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},
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}),
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}
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function getJestConfig(jestConfig) {
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return 'config' in jestConfig
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? // jest 27
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jestConfig.config
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: // jest 26
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jestConfig
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}
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function isEsm(isEsmProject, filename, jestConfig) {
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return (
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(/\.jsx?$/.test(filename) && isEsmProject) ||
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jestConfig.extensionsToTreatAsEsm?.find((ext) => filename.endsWith(ext))
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)
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}
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