From df342cd649e966c9ff9b714b52335b17062609af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20=C5=BBarnowski?= <mzarnowski@virtuslab.com>
Date: Wed, 6 Mar 2019 17:01:25 +0100
Subject: [PATCH] add dotty compiler class

---
 project/Build.scala                           |  2 ++
 .../src/tasty4scalac/Compiler.scala           |  1 +
 .../integration/src/tasty4scalac/Dotty.scala  | 28 +++++++++++++++++++
 .../test/tasty4scalac/CompilerTest.java       |  3 +-
 4 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 tasty4scalac/integration/src/tasty4scalac/Dotty.scala

diff --git a/project/Build.scala b/project/Build.scala
index ecd8fe58ecb5..7789e4c78d8d 100644
--- a/project/Build.scala
+++ b/project/Build.scala
@@ -845,10 +845,12 @@ object Build {
 
         val scalacClasspath = toClasspath(scalaLibrary, scalaCompiler, scalaReflect)
         val pluginClasspath = toClasspath(pluginJar, dottyLibrary, dottyCompiler, dottyInterfaces)
+        val dottyClasspath = toClasspath(scalaLibrary, dottyLibrary, dottyCompiler, dottyInterfaces)
 
         Seq(
           "-Dscalac.classpath=" + scalacClasspath,
           "-Dscalac.plugin.classpath=" + pluginClasspath,
+          "-Ddotty.classpath=" + dottyClasspath,
           "-Dtest.root.directory=" + (baseDirectory.value / "test-resources")
         )
       }
diff --git a/tasty4scalac/integration/src/tasty4scalac/Compiler.scala b/tasty4scalac/integration/src/tasty4scalac/Compiler.scala
index 5d6f2825d609..1994fbd319d6 100644
--- a/tasty4scalac/integration/src/tasty4scalac/Compiler.scala
+++ b/tasty4scalac/integration/src/tasty4scalac/Compiler.scala
@@ -8,6 +8,7 @@ trait Compiler {
 }
 
 object Compiler {
+  def dotty(): Compiler = Dotty()
   def scalac(): Compiler = Scalac()
 
   trait Factory {
diff --git a/tasty4scalac/integration/src/tasty4scalac/Dotty.scala b/tasty4scalac/integration/src/tasty4scalac/Dotty.scala
new file mode 100644
index 000000000000..9af5096eb7b3
--- /dev/null
+++ b/tasty4scalac/integration/src/tasty4scalac/Dotty.scala
@@ -0,0 +1,28 @@
+package tasty4scalac
+
+import dotty.tools.dotc.core.Comments.{ContextDoc, ContextDocstrings}
+import dotty.tools.dotc.core.Contexts
+import dotty.tools.dotc.core.Contexts.ContextBase
+import dotty.tools.dotc.reporting.Reporter.NoReporter
+import dotty.tools.io.VirtualDirectory
+import tasty4scalac.Compiler.Factory
+
+final class Dotty(val ctx: Contexts.Context) extends dotty.tools.dotc.Compiler with Compiler {
+  override def compile(code: String): Unit = newRun(ctx.fresh).compile(code)
+}
+
+object Dotty extends Factory {
+  private val classpath = System.getProperty("dotty.classpath")
+
+  override def apply(): Compiler = {
+    implicit val ctx: Contexts.FreshContext = new ContextBase().initialCtx.fresh
+    ctx.setSetting(ctx.settings.classpath, classpath)
+    ctx.setSetting(ctx.settings.YtestPickler, true)
+    ctx.setSetting(ctx.settings.encoding, "UTF8")
+    ctx.setSetting(ctx.settings.outputDir, new VirtualDirectory("<quote compilation output>"))
+
+    ctx.setReporter(NoReporter)
+    ctx.setProperty(ContextDoc, new ContextDocstrings)
+    new Dotty(ctx)
+  }
+}
\ No newline at end of file
diff --git a/tasty4scalac/integration/test/tasty4scalac/CompilerTest.java b/tasty4scalac/integration/test/tasty4scalac/CompilerTest.java
index 57c3bdb98405..54a3d8eaf457 100644
--- a/tasty4scalac/integration/test/tasty4scalac/CompilerTest.java
+++ b/tasty4scalac/integration/test/tasty4scalac/CompilerTest.java
@@ -18,7 +18,8 @@ public CompilerTest(Compiler factory) {
     @Parameterized.Parameters(name = "{index}: {0}")
     public static Collection<Compiler[]> parameters() {
         return Arrays.asList(new Compiler[][]{
-                {Scalac$.MODULE$.apply()}
+                {Scalac$.MODULE$.apply()},
+                {Dotty$.MODULE$.apply()}
         });
     }