Added support for Dotty

.travis.yml

@@ -2,7 +2,7 @@ language: scala
 sudo: required
 dist: trusty
 scala:
-  - 2.13.1
+  - 2.13.3
 jdk:
   - oraclejdk8
 before_script:

build.sbt

@@ -2,9 +2,9 @@ import sbtcrossproject.CrossPlugin.autoImport.{crossProject, CrossType}
 
 name in ThisBuild := "reactify"
 organization in ThisBuild := "com.outr"
-version in ThisBuild := "4.0.0"
-scalaVersion in ThisBuild := "2.13.1"
-crossScalaVersions in ThisBuild := List("2.13.1", "2.12.8", "2.11.12")
+version in ThisBuild := "4.0.1-SNAPSHOT"
+scalaVersion in ThisBuild := "2.13.3"
+crossScalaVersions in ThisBuild := List("2.13.3", "2.12.12", "2.11.12")
 
 publishTo in ThisBuild := sonatypePublishTo.value
 sonatypeProfileName in ThisBuild := "com.outr"
@@ -22,7 +22,7 @@ developers in ThisBuild := List(
   Developer(id="darkfrog", name="Matt Hicks", email="matt@matthicks.", url=url("http://matthicks.com"))
 )
 
-val scalatestVersion = "3.2.0-M3"
+val scalatestVersion = "3.2.2-M2"
 
 lazy val reactify = crossProject(JVMPlatform, JSPlatform, NativePlatform)
   .crossType(CrossType.Pure)
@@ -36,5 +36,8 @@ lazy val reactify = crossProject(JVMPlatform, JSPlatform, NativePlatform)
   .nativeSettings(
     nativeLinkStubs := true,
     scalaVersion := "2.11.12",
-    crossScalaVersions := Seq("2.11.12")
+    crossScalaVersions := List("2.11.12")
+  )
+  .jvmSettings(
+    crossScalaVersions := List("2.13.3", "0.26.0-RC1", "2.12.12", "2.11.12")
   )

project/build.properties

@@ -1 +1 @@
-sbt.version=1.3.8
+sbt.version=1.3.13

project/plugins.sbt

@@ -1,10 +1,12 @@
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.6.1")
 addSbtPlugin("com.codacy" % "sbt-codacy-coverage" % "3.0.3")
 
-addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.8.1")
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.4")
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "2.0.1")
 
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.0.0")
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.0.1")
-addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.0-M2")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.1.1")
+addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.0-M2")
+
+addSbtPlugin("ch.epfl.lamp" % "sbt-dotty" % "0.4.1")

reactify/src/main/scala/reactify/Dep.scala

@@ -1,6 +1,7 @@
 package reactify
 
 import reactify.reaction.{Reaction, ReactionStatus}
+import scala.language.implicitConversions
 
 /**
   * Dep allows creation of a dependent `Var` on another `Var` allowing conversion between the two. This can be useful for

reactify/src/main/scala/reactify/Reactive.scala

@@ -132,3 +132,8 @@ trait Reactive[T] {
   }
 }
 
+object Reactive {
+  def fire[T](reactive: Reactive[T], value: T, previous: Option[T], reactions: List[Reaction[T]]): ReactionStatus = {
+    reactive.fire(value, previous, reactions)
+  }
+}

reactify/src/main/scala/reactify/Val.scala

@@ -24,10 +24,7 @@ class Val[T] protected() extends Reactive[T] with Stateful[T] {
     }
   }
 
-  protected def set(value: => T): Unit = {
-    function = () => value
-    Val.evaluate(this, updating = false)
-  }
+  protected def set(value: => T): Unit = Val.set(this, value)
 
   def static(value: T): Unit = {
     function = () => value
@@ -61,6 +58,11 @@ object Val {
     override def initialValue(): Option[Evaluating] = None
   }
 
+  def set[T](v: Val[T], value: => T): Unit = {
+    v.function = () => value
+    evaluate(v, updating = false)
+  }
+
   def apply[T](value: => T): Val[T] = {
     val v = new Val[T]
     v.set(value)
@@ -86,7 +88,7 @@ object Val {
       v.previous = Option(v.evaluated)
       v.evaluated = evaluated
 
-      v.fire(evaluated, v.previous, v.reactions())
+      Reactive.fire(v, evaluated, v.previous, v.reactions())
     }
   }
 

reactify/src/main/scala/reactify/Var.scala

@@ -6,6 +6,8 @@ import reactify.bind.{BindSet, Binding}
 import reactify.group.VarGroup
 import reactify.transaction.Transaction
 
+import scala.language.implicitConversions
+
 /**
   * Var represents the combination of `Val` and `Channel` into a stateful and mutable underlying value.
   *
@@ -25,7 +27,7 @@ class Var[T] protected() extends Val[T]() with Mutable[T] {
     */
   override def set(value: => T): Unit = {
     Transaction.change(this, this.function, () => value)
-    super.set(value)
+    Val.set(this, value)
   }
 
   /**

reactify/src/test/scala/test/BindingSpec.scala

@@ -5,6 +5,8 @@ import org.scalatest.wordspec.AnyWordSpec
 import reactify._
 import reactify.bind.Binding
 
+import scala.language.implicitConversions
+
 class BindingSpec extends AnyWordSpec with Matchers {
   "Bindings" when {
     "dealing with a simple binding" should {
@@ -80,7 +82,7 @@ class BindingSpec extends AnyWordSpec with Matchers {
         b() should be(50)
       }
       "verify b -> a no longer propagates" in {
-        b := "200"
+        b := 200
         a() should be("100")
         b() should be(200)
       }

reactify/src/test/scala/test/ChannelSpec.scala

@@ -4,6 +4,8 @@ import org.scalatest.matchers.should.Matchers
 import org.scalatest.wordspec.AnyWordSpec
 import reactify.Channel
 
+import scala.language.implicitConversions
+
 class ChannelSpec extends AnyWordSpec with Matchers {
   "Channels" should {
     "notify when changed" in {

reactify/src/test/scala/test/DepSpec.scala

@@ -5,6 +5,7 @@ import org.scalatest.wordspec.AnyWordSpec
 import reactify._
 
 import scala.collection.mutable.ListBuffer
+import scala.language.implicitConversions
 
 class DepSpec extends AnyWordSpec with Matchers {
   "Deps" should {

reactify/src/test/scala/test/DepSpecialSpec.scala

@@ -4,6 +4,8 @@ import org.scalatest.matchers.should.Matchers
 import org.scalatest.wordspec.AnyWordSpec
 import reactify._
 
+import scala.language.implicitConversions
+
 class DepSpecialSpec extends AnyWordSpec with Matchers {
   "Deps Special Use-Cases" when {
     "combining Ints" should {

reactify/src/test/scala/test/TransactionSpec.scala

@@ -4,6 +4,7 @@ import org.scalatest.matchers.should.Matchers
 import org.scalatest.wordspec.AnyWordSpec
 import reactify.Var
 import reactify.transaction.Transaction
+import scala.language.implicitConversions
 
 class TransactionSpec extends AnyWordSpec with Matchers {
   "Transactions" should {

reactify/src/test/scala/test/TriggerSpec.scala

@@ -4,6 +4,8 @@ import org.scalatest.matchers.should.Matchers
 import org.scalatest.wordspec.AnyWordSpec
 import reactify.Trigger
 
+import scala.language.implicitConversions
+
 class TriggerSpec extends AnyWordSpec with Matchers {
   "Triggers" should {
     "handle simple invocations" in {

reactify/src/test/scala/test/ValSpec.scala

@@ -4,6 +4,8 @@ import org.scalatest.matchers.should.Matchers
 import org.scalatest.wordspec.AnyWordSpec
 import reactify._
 
+import scala.language.implicitConversions
+
 class ValSpec extends AnyWordSpec with Matchers {
   "Vals" should {
     "contain the proper value" in {

reactify/src/test/scala/test/VarSpec.scala

@@ -7,6 +7,8 @@ import reactify.group.VarGroup
 
 import scala.collection.mutable.ListBuffer
 
+import scala.language.implicitConversions
+
 class VarSpec extends AnyWordSpec with Matchers {
   lazy val lazyDouble: Var[Double] = Var(0.0)