swc/jest cant use env with jsc.target

[jleider]

Describe the bug

I think due to changes here: #6956 that state you can't set both env and jsc.target causes issues with swc/jest. I have an env specified in my .swcrc for bundling code for the web. However, when running jest it complains that env and jsc.target can not be used together. I have tried passing an empty object for env and setting env to null on the custom swc config passed to swc/jest as well as manually reading the .swcrc file and deleting the env property, however I still get an error saying they can not be used together.

Input code

const fs = require("fs");

const swcConfig = JSON.parse(fs.readFileSync(".swcrc", "utf-8"));
delete swcConfig.env;


module.exports = {
  cacheDirectory: "./node_modules/.cache/jest",
  clearMocks: true,
  setupFilesAfterEnv: [
    "jest-extended/all",
    "./jest.setup.js",
  ],
  testEnvironment: "jest-environment-jsdom",
  testRegex: ".*\\.(test|spec)\\.(j|t)sx?$",
  transform: {
    "^.+\\.tsx?$": ["ts-jest", {
      tsconfig: "./tests/tsconfig.json",
      babelConfig: "./babel.config.json",
    }],
    "^.+\\.js$": ["@swc/jest", swcConfig],
    "^.+\\.svg$": "<rootDir>/tests/react/svgJest",
    "^.+node_modules/(d3-array|internmap|htmldiff|escape-string-regexp|preact).+\\.jsx?$": "jest-esm-transformer",
  },
  verbose: true,
};

Config

{
  "$schema": "http://json.schemastore.org/swcrc",
  "env": {
    "mode": "usage",
    "coreJs": "3.32.0"
  },
  "jsc": {
    "externalHelpers": true,
    "loose": true,
    "parser": {
      "decorators": true,
      "dynamicImport": true,
      "syntax": "typescript",
      "tsx": true
    },
    "transform": {
      "react": {
        "runtime": "automatic"
      }
    }
  },
  "module": {
    "type": "es6",
    "ignoreDynamic": true
  },
  "sourceMaps": true
}

Playground link

No response

Expected behavior

I would expect to be able to overwrite the env data by passing a custom swc config object to swc/jest.

Also, the error message itself is fairly cryptic because swc/jest seems to automatically apply a jsc.target implicitly. Its non-obvious as to why this even fails at first.

Actual behavior

Receive an error from jest:

`env` and `jsc.target` cannot be used together

Version

1.3.72

Additional context

No response

[inomdzhon]

Hi, @kdy1

I have the same problem when build package with @swc/core v1.3.75

Please, see PR by Dependabot VKCOM/icons#672

Config here https://github.com/VKCOM/icons/blob/ea0be2d360b3f0a7ea9e9750537875c72c5eb8c0/packages/icons-scripts/scripts/configs/.swcrc#L1-L13

[kdy1]

@inomdzhon Look at your .swcrc

[inomdzhon]

@inomdzhon Look at your .swcrc

Ohhh I got it #7704

Thanks 🙏

[swc-bot]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.