False positive for pseudos and Less guard in selector-descendant-combinator-no-non-space

[thybzi]

Describe the issue. Is it a bug or a feature request (new rule, new option, etc.)?

Using CSS pseudo selector (:hover, :not(), ::after etc.) and LESS guard (when) in the same line leads to selector-descendant-combinator-no-non-space false positive.

Which rule, if any, is this issue related to?

selector-descendant-combinator-no-non-space

What CSS is needed to reproduce this issue?

:hover when (@a = 42) {
    color: red;
}

What stylelint configuration is needed to reproduce this issue?

e.g.

{
    "rules": {
        "selector-descendant-combinator-no-non-space": true
    }
}

Which version of stylelint are you using?

e.g. 7.6.0

How are you running stylelint: CLI, PostCSS plugin, Node API?

CLI with stylelint test.less

Does your issue relate to non-standard syntax (e.g. SCSS, nesting, etc.)?

Yes, it's related to LESS when syntax: http://lesscss.org/features/#css-guards-feature

What did you expect to happen?

No warnings to be flagged.

What actually happened (e.g. what warnings or errors you are getting)?

The following warnings were flagged:

test.less
 1:12  ×  Unexpected " (@a = 42)"   selector-descendant-combinator-no-non-space

[thybzi]

Concerns not only :not(), but all pseudo selectors. Updated the issue description.

[alexander-akait]

@thybzi Thanks for feedback, today i can see this.

[alexander-akait]

@thybzi can you provide full example, i can't find using pseudo with when in docs?

[thybzi]

Hi @evilebottnawi! I have provided the example in the head of this issue:

:hover when (@a = 42) {
    color: red;
}

Isn't this code enough to reproduce to failure?

[alexander-akait]

@thybzi I am on the weekends 😄 Tomorrow it'll 👍

[thybzi]

Okay, waiting for this. Thank you!

[alexander-akait]

@thybzi sorry, very busy last month 😭 you can try to resolve himself if you need this immediately 😄

[alexander-akait]

Done in #2557