scala.scalanative.nir.Versions.scala Maven / Gradle / Ivy
package scala.scalanative
package nir
object Versions {
/* NIR magic number */
final val magic: Int = 0x2e4e4952 // '.NIR' in hex
/* NIR is internally versioned by two version numbers. First one is
* compatibility level, and the second one is revision of the format. Both
* numbers are monotonically increasing. Revision is increased on any change
* to the format. Compatibility level is increased whenever the given change
* is breaking. Versioning starts at 1.1 version that corresponds to 0.1.0
* release of Scala Native.
*
* For example here is a possible sequence of release number changes:
*
* 1.1 -> 1.1 -> 1.2 -> 2.3 -> ...
*
* NIR emitted via 1.1-compatible compiler should read without any changes
* in 1.2-based compiler, but not the other way around. On the other hand
* when 2.3-based release happens all of the code needs to recompiled with
* new version of the toolchain.
*/
final val compat: Int = 6 // a.k.a. MAJOR version
final val revision: Int = 10 // a.k.a. MINOR version
case class Version(compat: Int, revision: Int)
/* Current public release version of Scala Native. */
final val current: String = "0.5.4"
final val currentBinaryVersion: String = binaryVersion(current)
private object FullVersion {
final val FullVersionRE = """^(\d+)\.(\d+)\.(\d+)(-.*)?$""".r
private def preRelease(s: String) = Option(s).map(_.stripPrefix("-"))
def unapply(version: String): Option[(Int, Int, Int, Option[String])] = {
version match {
case FullVersionRE(major, minor, patch, preReleaseString) =>
Some(
(
major.toInt,
minor.toInt,
patch.toInt,
preRelease(preReleaseString)
)
)
case _ => None
}
}
}
private[nir] def binaryVersion(full: String): String = full match {
case FullVersion(0, minor, 0, Some(suffix)) => full
case FullVersion(0, minor, _, _) => s"0.$minor"
case FullVersion(major, 0, 0, Some(suffix)) => s"$major.0-$suffix"
case FullVersion(major, _, _, _) => major.toString
}
}