Artem Nikiforov

parEvalMap* runs resource finaliser before usage

4

Found by: @lavrov [Original message](https://discord.com/channels/632277896739946517/632310980449402880/1049270300203810836) Example: ```scala //> using lib "co.fs2::fs2-core::3.2.4" import cats.effect.* import fs2.* import scala.concurrent.duration.* object Main extends IOApp.Simple: def run = Stream .resource(Resource.make(IO.println("acquire"))(_ => IO.println("release"))) .parEvalMap(2)(id =>...

Errors are not always caught with .handleErrorWith

11

Take a look at https://github.com/nikiforo/fs21107 The project can be run with `sbt "test:runMain ru.delimobil.FS2Example"` I expect the execution to continue inifinitely. However it ends with `Errored(java.lang.IllegalArgumentException: TheException)` in tens seconds....

This code ```scala import scodec.bits.crc.crc32 val bits1 = hex"abc".bits.takeRight(12) val bits2 = hex"aabc".bits.takeRight(12) val bits3 = hex"abcd".bits.take(12) val bits5 = hex"aabc".bits.drop(4) println( s"""--- |bits1 $bits1 ${crc32(bits1)} |bits2 $bits2 ${crc32(bits2)} |bits3...