selector-exist NPI error

[ghost]

If you run that exact example in a styl file...
http://stylus-lang.com/docs/bifs.html#selector-existsselector

Stylus compiled within web-pack in a vuejs project:

`Module build failed: TypeError: /Users/n/Documents/Code/web-client/src/vars.styl:18:23
14|
15| a
16| font-size 12px
17|
18| selector-exists('.foo') // true
-----------------------------^
19| selector-exists('.foo a') // true
20|

Cannot read property 'indexOf' of undefined

at /Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/normalizer.js:249:24
at Array.forEach (<anonymous>)
at Normalizer.visitGroup (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/normalizer.js:248:15)
at Normalizer.Visitor.visit (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/index.js:28:40)
at Normalizer.visitRoot (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/normalizer.js:170:23)
at Normalizer.Visitor.visit (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/index.js:28:40)
at CachedPathEvaluator.selectorExists (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/functions/selector-exists.js:17:13)
at CachedPathEvaluator.Evaluator.invokeBuiltin (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/evaluator.js:1051:30)
at CachedPathEvaluator.Evaluator.visitCall (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/evaluator.js:516:16)
at CachedPathEvaluator.Visitor.visit (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/index.js:28:40)
at CachedPathEvaluator.Evaluator.visit (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/evaluator.js:160:18)
at CachedPathEvaluator.Evaluator.visitExpression (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/evaluator.js:644:26)
at CachedPathEvaluator.Visitor.visit (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/index.js:28:40)
at CachedPathEvaluator.Evaluator.visit (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/evaluator.js:160:18)
at CachedPathEvaluator.Evaluator.visitBlock (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/evaluator.js:720:39)
at CachedPathEvaluator.Visitor.visit (/Users/n/Documents/Code/web-client/node_modules/stylus/lib/visitor/index.js:28:40)`

[Panya]

Cannot reproduce it in CLI and http://stylus-lang.com/try.html#?code=.foo%0A%20%20color%20red%0A%0A%20%20a%0A%20%20%20%20font-size%2012px%0A%0Aselector-exists('.foo')%20%2F%2F%20true%0Aselector-exists('.foo%20a')%20%2F%2F%20true%0Aselector-exists('.foo%20li')%20%2F%2F%20false%0Aselector-exists('.bar')%20%2F%2F%20false
Seems like an environment issue.

[kinesthai]

Hey. I have the same problem. I think is related to where you place the selector-exists function.
Check it out: http://stylus-lang.com/try.html#?code=.test%0A%20%20display%3Ablock%0A%0Aselector-exists(%22.test%22)%3B%0A%0A.another-class%0A%20%20display%3Ablock%0A%0A.and-yet-another%0A%20%20%20content%3A%20%22hello%22

It works if the function is the last thing on the file but not if is in the middle of the code.

[NZX-DeSiGN]

I ran the same error too ! It's an old issue, can someone look at it please?

[SageStarCodes]

ran into the same issue, even confirmed it on https://stylus-lang.com/try.html
When selector-exists is at the end of the file it works fine, otherwise the code won't update

code I used to test on https://stylus-lang.com/try.html :
does not work:

body
  position absolute
  &.bar
    position relative

selector-exists("body.bar")

.foo
  color red

works:

body
  position absolute
  &.bar
    position relative

.foo
  color red

selector-exists("body.bar")