Bug: _interop_require_wildcard helper missing

[JSerFeng]

Describe the bug

_interop_require_wildcard is missing, if has module configured to commonjs

Input code

const a = require('foo')
console.log(a)
import('other')

Config

{
  "jsc": {
    "target": "es2020",
    "parser": {
      "syntax": "typescript",
    },
  },
  "isModule": "unknown",
  "module": {
    "type": "commonjs"
  },
}

Playground link

https://play.swc.rs/?version=1.3.66&code=H4sIAAAAAAAAA0vOzysuUUhUsFUoSi0szSxK1VBPy89X1%2BRKBkrk56Tq5eSnayRqcmXmFuQXlWio55dkpBYBpQEdbRHiOAAAAA%3D%3D&config=H4sIAAAAAAAAAz2NSwqAMAwF956iZO1CXHoHD1FqED9NSxNREe9u6m%2BT5A3Dy1EYAyM7aMyhpwaxqUfRDMh1VVdQPjzaxJh%2BTwnvJHbLpuwR2aUhymufed0DBm5Dt8yYvYUmCivdEvgPf4%2B1JEsueB9oZHgqzgsyPIPvowAAAA%3D%3D

Expected behavior

_interop_require_wildcard presents

Actual behavior

_interop_require_wildcard is missing

Version

1.3.66

Additional context

No response

[kwonoj]

I'm not really sure this is a bug: you forced input as cjs and use esm import syntax?

[magic-akari]

Dynamic import() is supported in both CommonJS and ES modules. In CommonJS modules it can be used to load ES modules.

https://nodejs.org/api/esm.html#import-expressions

The key issue is that we should not run any module transformations when compiling from CJS to CJS.
However, swc always considers the input source to be ESM.

Currently, we only have three options for the input source: Module, Script, and Unknown.
We should try to skip the module transformations based on the input source.

[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.