I'm observing a weird behavior where IntelliJ does...

# intellij

[Piotr Krzemiński]

I'm observing a weird behavior where IntelliJ doesn't report some symbols being not available, whereas the Kotlin compiler complains. See the project: https://github.com/krzema12/ko2py, I'm trying to run the tests from compiler-plugin/ast/src/test/kotlin/python/ast/PythonAstTest.kt, and (see the screenshot) the compiler reports Unresolved reference ..., and in the IDE I can normally navigate to the classes/functions that are unresolved according to the compiler. I've been banging my head for hours, it must be something small... on the other hand, looks like a bug in the compiler or the IDE, they should behave consistently, no?

[Piotr Krzemiński]

what I checked:
• case-sensitivity - I renamed Python to python, and it works the same way
• I thought maybe generated is somewhere ignored (although not added to .gitignore), so renamed it to something neutral like astprimitives - the same problem

[Piotr Krzemiński]

I noticed the little IntelliJ icons next to Gradle modules, but it's not a project that uses IntelliJ's build system, it's Gradle... can this symptom be helpful in figuring out what's wrong? I tried reloading the project from the root build.gradle.kts

[Piotr Krzemiński]

:compiler-plugin:ast:classes succeeds and produces some sane output:

[Piotr Krzemiński]

I understood that IntelliJ actually behaves like I'd expect, and it may be a Gradle problem, so asked on #C19FD9681 as well

[Piotr Krzemiński]

my next step is to check what compiler args are passed when compiling the tests

[Piotr Krzemiński]

doesn't reproduce on GitHub Actions: https://github.com/krzema12/ko2py/actions/runs/17897772724/job/50886688827

[Piotr Krzemiński]

☝️ it doesn't on Linux, but does reproduce on MacOS: https://github.com/krzema12/ko2py/actions/runs/17897830054/job/50886827822

[Piotr Krzemiński]

I'm fairly sure it's about case-insensitivity, and a clash between e.g.:

data class Constant(val value: constant, val kind: string?)

and

data class constant(val value: String)

I think they're compiled to the same .class file (i.e. with the same name if you assume case-insensitivity)

[Piotr Krzemiński]

yeah, confirming it was the root cause - I just put the clashing names in their own Kotlin packages

[Piotr Krzemiński]

it would be best to have some kind of warning in IntelliJ

[Piotr Krzemiński]

created [IDEA-379800] No error/warning when class name clash