From 9a0c1f75a732d4fb3e419bd8c78bdcac09facd0e Mon Sep 17 00:00:00 2001
From: Felix Mulder <felix.mulder@gmail.com>
Date: Mon, 21 Nov 2016 14:48:07 +0100
Subject: Move benchmarks test to right location

---
 bench/test/dotty/tools/benchmarks/Benchmarks.scala | 100 +++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 bench/test/dotty/tools/benchmarks/Benchmarks.scala

(limited to 'bench/test/dotty/tools/benchmarks/Benchmarks.scala')

diff --git a/bench/test/dotty/tools/benchmarks/Benchmarks.scala b/bench/test/dotty/tools/benchmarks/Benchmarks.scala
new file mode 100644
index 000000000..fe5517ad9
--- /dev/null
+++ b/bench/test/dotty/tools/benchmarks/Benchmarks.scala
@@ -0,0 +1,100 @@
+package dotty.tools.benchmarks
+
+import org.scalameter.Key.reports._
+import org.scalameter.PerformanceTest.OnlineRegressionReport
+import org.scalameter.api._
+import org.scalameter.{Context, History, currentContext, persistence}
+import org.scalameter.reporting.RegressionReporter.Tester
+import dotty.tools.dotc.CompilerTest
+
+import scala.io.Source
+
+// decorator of persitor to expose info for debugging
+class DecoratorPersistor(p: Persistor) extends SerializationPersistor {
+
+  override def load(context: Context): History = {
+    val resultdir = currentContext(resultDir)
+    val scope = context.scope
+    val curve = context.curve
+    val fileName = s"$resultdir$sep$scope.$curve.dat"
+
+    println(s"load file $fileName")
+
+    p.load(context)
+  }
+
+  override def save(context: Context, h: History) = {
+    val resultdir = currentContext(resultDir)
+    val scope = context.scope
+    val curve = context.curve
+    val fileName = s"$resultdir$sep$scope.$curve.dat"
+
+    println(s"save file $fileName")
+
+    p.save(context, h)
+  }
+}
+
+object BenchTests extends OnlineRegressionReport {
+  val outputDir = "./out/"
+
+  val compiler = new CompilerTest {
+    override val defaultOutputDir: String = outputDir
+  }
+
+  implicit val defaultOptions = List("-d", outputDir)
+  val scala2mode = List("-language:Scala2")
+
+  val dottyDir  = "../compiler/src/dotty/"
+
+  val stdlibFiles = Source.fromFile("../compiler/test/dotc/scala-collections.whitelist", "UTF8").getLines()
+    .map(_.trim) // allow identation
+    .filter(!_.startsWith("#")) // allow comment lines prefixed by #
+    .map(_.takeWhile(_ != '#').trim) // allow comments in the end of line
+    .filter(_.nonEmpty)
+    .map("." + _)
+    .toList
+
+  def stdLib = compiler.compileList("compileStdLib", stdlibFiles, "-migration" :: scala2mode)
+
+  def dotty = compiler.compileDir(dottyDir, ".",  List("-deep", "-strict"))
+
+  // NOTE: use `val persistor = ...` would cause persistor ignore command line options for `resultDir`
+  override def persistor = new DecoratorPersistor(super.persistor)
+
+  // accept all the results, do not fail
+  override def tester: Tester = new Tester.Accepter
+
+  // store all results
+  override def historian: RegressionReporter.Historian = RegressionReporter.Historian.Complete()
+
+  override def executor: Executor = LocalExecutor(warmer, aggregator, measurer)
+
+
+  def setup =
+    performance of "dotty" in {
+      measure.method("stdlib") in {
+        using(Gen.unit("test")) curve "stdlib" in { r => stdLib }
+      }
+
+      measure.method("dotty-src") in {
+        using(Gen.unit("test")) curve "dotty-src" in { r => dotty }
+      }
+    }
+
+  /** workaround to fix problem in ScalaMeter
+    *
+    * NOTE: Otherwise, command line options would be ignored by HTMLReporter, as
+    *       the HTMLReporter uses the context of tree node, which is created via
+    *       ScalaMeter DSL before command line option `-CresultDir` takes effect
+    *       in `PerformanceTest.main`.
+    *
+    *       Following code ensures that the test tree is set up after the `-CresultDir`
+    *       option takes effect.
+    **/
+  override def executeTests(): Boolean = {
+    setup
+    super.executeTests()
+  }
+
+}
-- 
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