Merge pull request #519 from etorreborre/kind-projector-plugin

Added a cbt plugin for the kind-projector compiler plugin

4 files changed, 56 insertions, 0 deletions

diff --git a/examples/kindprojector-example/Main.scala b/examples/kindprojector-example/Main.scala
new file mode 100644
index 0000000..3da3aaf
--- /dev/null
+++ b/examples/kindprojector-example/Main.scala
@@ -0,0 +1,10 @@
+package kindprojector_example
+
+object Main {
+
+  def parametric[F[_]]: Unit = ()
+
+  def main(args: Array[String]): Unit = {
+    parametric[Either[String, ?]]
+  }
+}
diff --git a/examples/kindprojector-example/build/build.scala b/examples/kindprojector-example/build/build.scala
new file mode 100644
index 0000000..e5ad8b4
--- /dev/null
+++ b/examples/kindprojector-example/build/build.scala
@@ -0,0 +1,11 @@
+package kindprojector_example_build
+
+import cbt._
+
+class Build(val context: Context) extends BaseBuild with KindProjectorPlugin {
+
+  override def scalacOptions: Seq[String] =
+    super.scalacOptions ++
+    Seq("-language:higherKinds")
+
+}
diff --git a/stage2/plugins/KindProjector.scala b/stage2/plugins/KindProjector.scala
new file mode 100644
index 0000000..50b1576
--- /dev/null
+++ b/stage2/plugins/KindProjector.scala
@@ -0,0 +1,30 @@
+package cbt
+
+import java.io.File
+
+trait KindProjectorPlugin extends BaseBuild {
+  def kindProjectorVersion = "0.9.4"
+
+  override def scalacOptions = super.scalacOptions ++
+    KindProjector.scalacOptions(
+      KindProjector.dependencies( scalaMajorVersion, kindProjectorVersion, context.cbtLastModified, context.paths.mavenCache ).jar
+    )
+}
+
+object KindProjector {
+  def dependencies(
+    scalaMajorVersion: String, kindProjectorVersion: String, cbtLastModified: Long, mavenCache: File
+  )(
+    implicit logger: Logger, transientCache: java.util.Map[AnyRef,AnyRef], classLoaderCache: ClassLoaderCache
+  ) =
+    MavenResolver( cbtLastModified, mavenCache, mavenCentral ).bindOne(
+      MavenDependency(
+        "org.spire-math", "kind-projector_"+scalaMajorVersion, kindProjectorVersion
+      )
+    )
+
+  def scalacOptions( jarPath: File ) =
+    Seq(
+      "-Xplugin:" ++ jarPath.string
+    )
+}
diff --git a/test/test.scala b/test/test.scala
index 13e477f..55ce205 100644
--- a/test/test.scala
+++ b/test/test.scala
@@ -472,6 +472,11 @@ object Main{
       lib.write(sourceFile, sourceBefore)
     }
 
+    {
+      val res = runCbt("../examples/kindprojector-example", Seq())
+      assert(res.exit0)
+    }
+
     /*
     // currently fails with
     // java.lang.UnsupportedOperationException: scalafix.rewrite.ScalafixMirror.fromMirror $anon#typeSignature requires the semantic api