:not selector work wrong

[voskresla]

I made example, just run npm i && npx jest master...voskresla:bug-with-not-selector

With css:

.class2, .class3 {
    display: block;
    color: #fff;
}
.class3:not(.class1) {
    color: black
}

we expected Object like:

{
  "class1": "class1",
  "class2": "class2",
  "class3": "class3",
}

but received object is:

Snapshot name: `Style with :not selector should import default 1`

    - Snapshot  - 1
    + Received  + 1

      Object {
    -   "class1": "class1",
    +   "class1)": "class1)",
        "class2": "class2",
        "class3": "class3",
      }

      7 | });

[yepninja]

@Connormiha
Maybe it is better to use https://www.npmjs.com/package/postcss-selector-parser for parsing selectors and collecting classes?
Or is there any reasons why you don't want to use it?

[Connormiha]

@yepninja
Main reason is performance. I prefer reduce count of dependencies and add extended library only when there is a very good reason.

[yepninja]

postcss-selector-parser is the standard library for postcss. There is even an issue to integrate it natively to postcss.

[Connormiha]

Fix in 4.0.1