Any tipcs for debugging coroutines? I have a bug i...

# coroutines

[CLOVIS]

Any tipcs for debugging coroutines? I have a bug in my code, and the IntelliJ debugger's stacktrace is completely useless.

[kenkyee]

turn this on?
https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-debug/

[CLOVIS]

Is there anything more to do than DebugProbes.install() ? That doesn't seem to do anything.

[kenkyee]

there's also this: https://github.com/Kotlin/kotlinx.coroutines/blob/master/docs/topics/debugging.md

[CLOVIS]

Thanks, I'll read that

[CLOVIS]

-ea seems to have recovered the function just up where I am in the stacktrace. I guess a stacktrace of size 1 is better than no stacktrace at all, but it's far from great 😕

[kenkyee]

yeah..coroutine debugging isn't fun. I assume you named the coroutine? The name shows up in the stacktrace.

[CLOVIS]

I didn't name the coroutine, but the problem isn't a race condition or anything complicated, I just wanted to see the value of a variable at a particular point in the program.

[CLOVIS]

Thing is, that point is inside a lambda parameter of an inline function called in a suspend function, so bad luck I guess 😅

[kenkyee]

that might be a bug or missing feature in the coroutine debugging support so if you can create a repro, it'd be worth reporting it...

[CLOVIS]

This particular project is open source, but it's far from being a minimal example 😕

[rkeazor]

the coroutines debugger helps alot

[reformator]

Have a look at https://github.com/Anamorphosee/stacktrace-decoroutinator