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scalafix-core/src/main/scala/scalafix/internal/config/ParserConfig.scala
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scalafix-core/src/main/scala/scalafix/internal/config/ScalaVersion.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| package scalafix.internal.config | ||
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| import scala.util.Failure | ||
| import scala.util.Success | ||
| import scala.util.Try | ||
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| import scala.meta.Dialect | ||
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| import scalafix.internal.config.ScalaVersion._ | ||
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| /* | ||
| ScalaVersion allows to model major, minor and patch versions. The expected input is x[.x[.x]]]. | ||
| All information stored after a dash are dropped. Example 3.0.0-RC3 will be modeled as ScalaVersion.Patch(3, 0, 0) | ||
| */ | ||
| sealed trait ScalaVersion { | ||
| val major: MajorVersion | ||
| val minor: Option[Int] | ||
| val patch: Option[Int] | ||
| val dialect: Dialect = major match { | ||
| case ScalaVersion.Major.Scala2 => scala.meta.dialects.Scala213 | ||
| case ScalaVersion.Major.Scala3 => scala.meta.dialects.Scala3 | ||
| } | ||
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| def isScala2: Boolean = major == Major.Scala2 | ||
| def isScala3: Boolean = major == Major.Scala3 | ||
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| def value: String = this match { | ||
| case Major(major) => s"${major.value}" | ||
| case Minor(major, minorVersion) => s"${major.value}.${minorVersion}" | ||
| case Patch(major, minorVersion, patchVersion) => | ||
| s"${major.value}.${minorVersion}.$patchVersion" | ||
| } | ||
| } | ||
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| object ScalaVersion { | ||
| val scala2: Major = Major(Major.Scala2) | ||
| val scala3: Major = Major(Major.Scala3) | ||
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| case class Major(major: MajorVersion) extends ScalaVersion { | ||
| override val minor = None | ||
| override val patch = None | ||
| } | ||
| case class Minor(major: MajorVersion, minorVersion: Int) | ||
| extends ScalaVersion { | ||
| override val minor: Some[Int] = Some(minorVersion) | ||
| override val patch = None | ||
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| } | ||
| case class Patch(major: MajorVersion, minorVersion: Int, patchVersion: Int) | ||
| extends ScalaVersion { | ||
| override val minor: Some[Int] = Some(minorVersion) | ||
| override val patch: Some[Int] = Some(patchVersion) | ||
| } | ||
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| sealed trait MajorVersion { | ||
| val value: Int | ||
| } | ||
| object Major { | ||
| case object Scala2 extends MajorVersion { | ||
| override val value: Int = 2 | ||
| } | ||
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| case object Scala3 extends MajorVersion { | ||
| override val value: Int = 3 | ||
| } | ||
| } | ||
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| object MajorVersion { | ||
| def from(int: Long): Try[MajorVersion] = | ||
| int match { | ||
| case 2 => Success(Major.Scala2) | ||
| case 3 => Success(Major.Scala3) | ||
| case _ => | ||
| Failure( | ||
| new Exception(s"Major Scala version can be either 2 or 3 not $int") | ||
| ) | ||
| } | ||
| } | ||
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| private val intPattern = """\d{1,2}""" | ||
| private val FullVersion = | ||
| raw"""($intPattern)\.($intPattern)\.($intPattern)""".r | ||
| private val MajorPattern = raw"""($intPattern)""".r | ||
| private val PartialVersion = raw"""($intPattern)\.($intPattern)""".r | ||
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| def from(s: String): Try[ScalaVersion] = { | ||
| val version = s.split("-").head | ||
| version match { | ||
| case FullVersion(major, minor, patch) => | ||
| MajorVersion.from(major.toLong).flatMap { major => | ||
| Success(Patch(major, minor.toInt, patch.toInt)) | ||
| } | ||
| case PartialVersion(major, minor) => | ||
| MajorVersion.from(major.toLong).flatMap { major => | ||
| Success(Minor(major, minor.toInt)) | ||
| } | ||
| case MajorPattern(major) => | ||
| MajorVersion.from(major.toLong).flatMap(major => Success(Major(major))) | ||
| case _ => Failure(new Exception(s"$s not a valid Scala Version.")) | ||
| } | ||
| } | ||
| } |
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