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/*
* Copyright (c) 2013 Functional Streams for Scala
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
// Adapted from scodec-protocols, licensed under 3-clause BSD
package fs2
package protocols
package mpeg
import scodec.Err
import scodec.bits.BitVector
trait MpegError {
def message: String
}
object MpegError {
case class General(message: String) extends MpegError {
override def toString = message
}
case class Decoding(data: BitVector, err: Err) extends MpegError {
def message = s"error encountered when decoding: $err ${data.toHex}"
override def toString = message
}
def joinErrors[S, I, O](
t: Scan[S, I, Either[MpegError, O]]
): Scan[S, Either[MpegError, I], Either[MpegError, O]] =
t.semipass(_.fold(e => Left(Left(e)), i => Right(i)))
def passErrors[S, I, O](t: Scan[S, I, O]): Scan[S, Either[MpegError, I], Either[MpegError, O]] =
t.right
}
