Questions tagged [scala-2]
4 questions
3
votes
0 answers
illegal cyclic reference involving object scala and case class
Why do I get an error saying illegal cyclic reference? I thought objects in scala are like singleton and act as a container and cannot be instantiated. Why it is cyclic? How to fix this error without moving case class Baz out of object Bar?
trait…
Node.JS
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0
votes
1 answer
S3.getObject is truncating file contents in alpakka 4.0.0
I have a block of code like this:
def downloadFilesSource(bucketName: String, primaryKey: String)(
implicit ec: ExecutionContext
): Source[(Source[ByteString, NotUsed], String), NotUsed] =
S3.listBucket(bucketName, prefix =…
user3468054
- 610
- 4
- 11
0
votes
1 answer
In Scala 2, what are possible ways to write a shortcut of a partial function without triggering unchecked warning?
This is a follow-up question of:
In Scala 3: Why runtime pattern matching can't work reliably on duck type using JVM reflection?
I'm trying to create a pattern matching implementation in Scala that is more resilient to type erasure. It should still…
tribbloid
- 4,026
- 14
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0
votes
1 answer
Execute splice() for varargs in macro method in Scala 2.13
I want to execute splice() for each argument of my varargs:
import scala.reflect.macros.blackbox
object LoggerMacro {
def log(context: blackbox.Context)
(message: context.Expr[String], arguments: context.Expr[Any]*)
:…
Martin
- 598
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