also Kotlin 1.3.40 plugin for IJ includes the new ...

# arrow

[Bob Glamm]

also Kotlin 1.3.40 plugin for IJ includes the new type inference engine. Time to see if I can crash the GC!

[pakoito]

...

[pakoito]

open Apply.kt

[pakoito]

and then uncomment TupleTest.kt

[pakoito]

I'm curious but don't have the time to test it myself

[simon.vergauwen]

What's happens there with the current version Arrow has?

[pakoito]

Apply causes a GC loop

[pakoito]

so it grows to maximum memory and then GCs and tries again

[pakoito]

TupleTest just freezes IJ IIRC, maybe crashes it?

[simon.vergauwen]

Funny

[Bob Glamm]

Well... GC is working and I'm running TupleTest. Heap tops out at 2GB and has successfully reclaimed heap space several times now

[Bob Glamm]

well, compiling in an effort to run TupleTest

[Bob Glamm]

very slow compilation speed

[pakoito]

@Bob Glamm you only give 2GB to IJ? So brave 😄 I have 8 IIRC

[Bob Glamm]

Actually I have allocated 6, but it appears throughout that entire process IJ only used 2

[Bob Glamm]

also sadface on analysis:

Error:Kotlin: [Internal Error] org.jetbrains.kotlin.util.KotlinFrontEndException: Exception while analyzing expression at (178,56) in /Users/glammr1/workspace/arrow/modules/core/arrow-extras-extensions/build/generated/source/kaptKotlin/main/extension/arrow/data/extensions/sum/divide/DivideSumInstance.kt
	at org.jetbrains.kotlin.types.expressions.ExpressionTypingVisitorDispatcher.logOrThrowException(ExpressionTypingVisitorDispatcher.java:241)
	at org.jetbrains.kotlin.types.expressions.ExpressionTypingVisitorDispatcher.lambda$getTypeInfo$0(ExpressionTypingVisitorDispatcher.java:212)
	at org.jetbrains.kotlin.util.PerformanceCounter.time(PerformanceCounter.kt:91)
...

[Bob Glamm]

oh wait

[Bob Glamm]

Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded

[Bob Glamm]

so nvm, it's still broken. I'll see if the new type inference engine helps with day-to-day Kotlin development

[stojan]

Arrow should be part of Kotlins CI... Pushing the compiler to the limit