Elm code with Debug.log fails with Javascript error

[johnykifle]

🐛 bug report

I have forgotten to delete the Debug.log code on elm and the build failed with javascript error.

Inside my elm code I had

 case x of 
   ...

  OnChange value ->
      let
          _ =
               Debug.log "Test" value
      in
      .....

🎛 Configuration (.babelrc, package.json, cli command)

package.json

"devDependencies": {
        "@parcel/packager-raw-url": "^2.3.2",
        "@parcel/transformer-elm": "^2.3.2",
        "@parcel/transformer-webmanifest": "^2.3.2",
        "@vercel/node": "^1.15.0",
        "vercel": "^24.0.0"
    },

🤔 Expected Behavior

Show error that the code is running with Debug and its not allowed?

😯 Current Behavior

@parcel/transformer-elm: Cannot read property 'flatMap' of undefined

  TypeError: Cannot read property 'flatMap' of
  undefined
      at Object.transform
  (/Users/{path/to/project}/node_modules/@parcel/transformer-elm/lib/ElmTransformer.js:170:48)
      at async Transformation.runTransformer
  (/Users/{path/to/project}//node_modules/@parcel/core/lib/Transformation.js:653:5)
      at async Transformation.runPipeline
  (/Users/{path/to/project}//node_modules/@parcel/core/lib/Transformation.js:402:36)
      at async Transformation.runPipelines
  (/Users/{path/to/project}//node_modules/@parcel/core/lib/Transformation.js:265:40)
      at async Transformation.run
  (/Users/{path/to/project}//node_modules/@parcel/core/lib/Transformation.js:183:21)
      at async Child.handleRequest
  (/Users/{path/to/project}//node_modules/@parcel/workers/lib/child.js:217:9)

💁 Possible Solution

Prevent building if there are any Debug

🌍 Your Environment

Software	Version(s)
Parcel	v2
Node	v14.119.1
npm/Yarn	Yarn v1.22.18
Operating System	MacOs Monterey