First big project I'm using kotlin. The app seems ...

# android

[Daniele Segato]

First big project I'm using kotlin. The app seems to have a memory leak issue. I'm trying to understand what it is and I see a lot of "Class" allocations that never gets deallocated.

I've looked into those and looks like every time I've a lambda an allocation like that happens.

I'm not 100% sure the memory leak is there but so far I couldn't find any deallocation of those.

[Daniele Segato]

those are roughly 52 KB of allocation per Class object. And if every lambda generate those I can understand how my app goes slowly into out of memory.
I couldn't find any context / activity leak.

[Daniele Segato]

This can't be right...
or no one would use kotlin...

anyone can help me understand what's going on?

[tapchicoma]

would be nice to provide actual code that make memory leak

[rkeazor]

Its most likely the code your writting

[rkeazor]

and for your lambdas , also try to inline as much when needed, so you don’t end up with to much class overhead

[Daniele Segato]

If i knew where the leak was i would fix it don't you think?

A lambda is a lambda. I can't inline it.

[ankushg]

@Daniele I believe @rkeazor means that you should ensure that the methods you're passing the lambda into use the inline modifier: https://kotlinlang.org/docs/reference/inline-functions.html

[rkeazor]

exactly

[Daniele Segato]

FYI I had no idea but apparently by lazy cause memory leak. I use this heavily and in my opinion this is an issue with kotlin.

[Daniele Segato]

and inline is not always possible