function-calc-no-invalid was removed and replacement is non-existent or undocumented

[romainmenke]

What steps are needed to reproduce the bug?

Have a stylelint config with function-calc-no-invalid in it.

What Stylelint configuration is needed to reproduce the bug?

{
  "rules": { "function-calc-no-invalid": "<any value>" }
}

How did you run Stylelint?

Any method

Which version of Stylelint are you using?

^14

What did you expect to happen?

No errors or documentation on where to find a replacement

What actually happened?

Unknown rule function-calc-no-invalid function-calc-no-invalid

Does the bug relate to non-standard syntax?

No

Proposal to fix the bug

Write migration/deprecation docs.

---

This issue discusses moving it to a separate plugin : #4731 (comment)

But I can't find it anywhere.

The PR specifically mentions not doing any kind of deprecation cycle : #5296 (comment)

This issue just mentions updating a standards config :
#5653

But it does not explain why this would help or any hint of a replacement.

---

Can this be rectified?
I understand that some people had strong feelings about removing this rule but guiding the community is important here.

Open questions I have?

• why is running in the browser and performance there even a factor ?!?
• is there a replacement?

[ybiquitous]

@romainmenke Thank you for using a template! As far as I know, there seem to be no replacements. 😞

We have discussed performance and browser support for a long time (see #2454 and #3935).
Also, the function-calc-no-invalid rue had a problem with maintainability.

[jeddy3]

Also, the function-calc-no-invalid rue had a problem with maintainability

This was the main reason for its removal. It had a security vulnerability.

is there a replacement?

As @ybiquitous said, there is no replacement. Stylelint may, in the future, offer more validation if we migrate some rules to a different parser.

I'm going to close the issue as the migration guide says to remove the rule from your config and that's all we can suggest at the moment.