Cross compile to Scala Native (#301)

Cross compile to Scala Native

.travis.yml

@@ -1,8 +1,4 @@
 language: scala
-scala:
-- 2.10.7
-- 2.11.12
-- 2.12.4
 jdk:
 - oraclejdk8
 sudo: false
@@ -27,3 +23,13 @@ notifications:
     on_success: change
     on_failure: always
     on_start: false
+matrix:
+  include:
+  - scala: 2.10.7
+  - scala: 2.11.12
+    sudo: required
+    before_install:
+    - curl https://raw.githubusercontent.com/scala-native/scala-native/v0.3.6/bin/travis_setup.sh | bash -x
+    script:
+    - sbt ++$TRAVIS_SCALA_VERSION coreNative/compile validate
+  - scala: 2.12.4

build.sbt

@@ -23,6 +23,8 @@ val scodecVersion = "1.10.3"
 
 val macroParadise =
   "org.scalamacros" % "paradise" % macroParadiseVersion cross CrossVersion.patch
+val scalaCheckDep =
+  Def.setting("org.scalacheck" %%% "scalacheck" % scalaCheckVersion)
 
 val allSubprojects =
   Seq("cats", "core", "eval", "jsonpath", "pureconfig", "scalacheck", "scalaz", "scodec")
@@ -32,6 +34,8 @@ val allSubprojectsJS = {
   (allSubprojects diff jvmOnlySubprojects).map(_ + "JS")
 }
 
+val Scala211 = Def.setting(crossScalaVersions.value.find(_.startsWith("2.11")).get)
+
 /// projects
 
 lazy val root = project
@@ -82,7 +86,7 @@ lazy val cats = crossProject(JSPlatform, JVMPlatform)
 lazy val catsJVM = cats.jvm
 lazy val catsJS = cats.js
 
-lazy val core = crossProject(JSPlatform, JVMPlatform)
+lazy val core = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .configureCross(moduleCrossConfig("core"))
   .enablePlugins(BuildInfoPlugin)
   .settings(moduleName := projectName)
@@ -91,9 +95,9 @@ lazy val core = crossProject(JSPlatform, JVMPlatform)
       compilerPlugin(macroParadise),
       scalaOrganization.value % "scala-reflect" % scalaVersion.value,
       scalaOrganization.value % "scala-compiler" % scalaVersion.value,
-      "org.typelevel" %%% "macro-compat" % macroCompatVersion,
+      "org.typelevel" %% "macro-compat" % macroCompatVersion,
       "com.chuusai" %%% "shapeless" % shapelessVersion,
-      "org.scalacheck" %%% "scalacheck" % scalaCheckVersion % Test
+      scalaCheckDep.value % Test
     ),
     libraryDependencies ++= {
       CrossVersion.partialVersion(scalaVersion.value) match {
@@ -108,9 +112,17 @@ lazy val core = crossProject(JSPlatform, JVMPlatform)
     buildInfoKeys := Seq[BuildInfoKey](name, version, scalaVersion, sbtVersion),
     buildInfoPackage := s"$rootPkg.internal"
   )
+  .nativeSettings(
+    libraryDependencies -= scalaCheckDep.value % Test,
+    // Disable Scaladoc generation because of:
+    // [error] dropping dependency on node with no phase object: mixin
+    publishArtifact in packageDoc := false,
+    sources in (Compile, doc) := Seq.empty
+  )
 
 lazy val coreJVM = core.jvm
 lazy val coreJS = core.js
+lazy val coreNative = core.native
 
 lazy val docs = project
   .configure(moduleConfig("docs"))
@@ -164,7 +176,7 @@ lazy val scalacheck = crossProject(JSPlatform, JVMPlatform)
   .configureCross(moduleCrossConfig("scalacheck"))
   .dependsOn(core % "compile->compile;test->test")
   .settings(
-    libraryDependencies += "org.scalacheck" %%% "scalacheck" % scalaCheckVersion,
+    libraryDependencies += scalaCheckDep.value,
     initialCommands += s"""
       import org.scalacheck.Arbitrary
     """
@@ -416,6 +428,8 @@ lazy val releaseSettings = {
       commitReleaseVersion,
       tagRelease,
       publishArtifacts,
+      releaseStepCommand(s"++${Scala211.value}"),
+      releaseStepCommand("coreNative/publishSigned"),
       setLatestVersion,
       setNextVersion,
       commitNextVersion,

modules/core/shared/src/main/scala/eu/timepit/refined/api/RefType.scala

@@ -25,10 +25,12 @@ trait RefType[F[_, _]] extends Serializable {
   def unsafeRewrap[T, A, B](ta: F[T, A]): F[T, B]
 
   def unsafeWrapM[T: c.WeakTypeTag, P: c.WeakTypeTag](c: blackbox.Context)(
-      t: c.Expr[T]): c.Expr[F[T, P]]
+      t: c.Expr[T]): c.Expr[F[T, P]] =
+    c.universe.reify(unsafeWrap(t.splice))
 
   def unsafeRewrapM[T: c.WeakTypeTag, A: c.WeakTypeTag, B: c.WeakTypeTag](c: blackbox.Context)(
-      ta: c.Expr[F[T, A]]): c.Expr[F[T, B]]
+      ta: c.Expr[F[T, A]]): c.Expr[F[T, B]] =
+    c.universe.reify(unsafeRewrap(ta.splice))
 
   /**
    * Returns a value of type `T` refined as `F[T, P]` on the right if

notes/0.9.0.markdown

@@ -4,6 +4,7 @@
 * Add `predicates` package which allows to import all predicates
   with a single `import eu.timepit.refined.predicates.all._`.
   ([#433][#433])
+* Cross build the core module for Scala Native. ([#301][#301])
 
 ### Changes
 
@@ -29,6 +30,7 @@
 
 * Update `refined-scalaz` to Scalaz 7.2.19. ([#434][#434])
 
+[#301]: https://github.com/fthomas/refined/pull/301
 [#415]: https://github.com/fthomas/refined/pull/415
 [#416]: https://github.com/fthomas/refined/issues/416
 [#425]: https://github.com/fthomas/refined/pull/425

project/plugin-scala-native.sbt

@@ -0,0 +1,5 @@
+// Remember to update the version number in .travis.yml too.
+addSbtPlugin(
+  "org.scala-native" % "sbt-scala-native" % "0.3.6"
+    exclude ("org.scala-native", "sbt-crossproject") // https://github.com/portable-scala/sbt-crossproject/issues/72
+)