Output of the following program is abcd , while accord

Combination of stream decoders doesn't emit all expected items about scodec-stream HOT 4 CLOSED

scodec commented on June 15, 2024

Combination of stream decoders doesn't emit all expected items

from scodec-stream.

Comments (4)

mpilquist commented on June 15, 2024 1

Fixed in 3.0.2 and 2.0.3, which are releasing now and should be available for download within the hour.

from scodec-stream.

mpilquist commented on June 15, 2024

What version of scodec-stream are you using? Using 2.x or 3.x gives the expected behavior:

scala> decoder.decode[Fallible](Stream(hex"1a bc d7 ab 7a bc".bits)).compile.fold(BitVector.empty)(_ ++ _)                                                                                   
val res7: Either[Throwable, scodec.bits.BitVector] = Right(BitVector(36 bits, 0xabcdababc))

from scodec-stream.

mpod commented on June 15, 2024

I don't see how your example is equivalent to mine.

Here is my build.sbt:

scalaVersion := "2.13.6"

libraryDependencies ++= Seq(
  "org.scodec"                 %% "scodec-stream"   % "3.0.1",
)

$ sbt run returns:

... 
Decoded: a
Decoded: b
Decoded: c
Decoded: d

from scodec-stream.

mpilquist commented on June 15, 2024

Okay yeah, I can reproduce your results if I chunk up the input in to an individual BitVector for each byte of input:

scala> decoder.decode[Fallible](Stream.emits(hex"1a bc d7 ab 7a bc".toArray.map(BitVector.apply(_)))).compile.fold(BitVector.empty)(_ ++ _)                                                                                          
val res9: Either[Throwable, scodec.bits.BitVector] = Right(BitVector(16 bits, 0xabcd))