fixes #219 - publish for Scala 2.13.0-M5

.travis.yml

@@ -3,8 +3,9 @@ sudo: false
 language: scala
 
 scala:
-  - 2.11.11
-  - 2.10.6
+  - 2.11.12
+  - 2.12.4
+  - 2.13.0-M5
 
 env:
   - DEPLOY=false
@@ -14,7 +15,7 @@ jdk:
 
 matrix:
   include:
-  - scala: 2.12.3
+  - scala: 2.12.4
     jdk: oraclejdk8
     env: DEPLOY=true
 

build.sbt

@@ -2,16 +2,25 @@ import sbtrelease.Utilities._
 import ReleaseTransformations._
 import microsites.ExtraMdFileConfig
 
-lazy val scalaCheckVersion = "1.13.5"
-lazy val scalaTestVersion = "3.0.4"
-lazy val disciplineVersion = "0.8"
-lazy val catsVersion = "1.0.1"
+def preScala2_13(scalaVersion: String): Boolean =
+  CrossVersion.partialVersion(scalaVersion) match {
+    case Some((major, _)) if major < 2  => true
+    case Some((2, minor)) if minor < 13 => true
+    case _                              => false
+  }
+
+lazy val scalaCheckVersion = "1.14.0"
+lazy val scalaTestVersion = "3.0.6-SNAP5"
+lazy val catsVersion = "1.5.0-RC0"
 lazy val catalystsVersion = "0.0.5"
 
+def disciplineVersion(scalaVersion: String): String
+  = if (preScala2_13(scalaVersion)) "0.9" else "0.10"
+
 lazy val buildSettings = Seq(
   organization := "org.typelevel",
   scalaVersion := "2.12.4",
-  crossScalaVersions := Seq("2.10.7", "2.11.12", "2.12.4")
+  crossScalaVersions := Seq("2.11.12", "2.12.4", "2.13.0-M5")
 )
 
 lazy val commonSettings = Seq(
@@ -25,15 +34,11 @@ lazy val commonSettings = Seq(
     "-unchecked",
     "-Xfatal-warnings",
     "-Xlint",
-    "-Yno-adapted-args",
     "-Ywarn-dead-code",
     "-Ywarn-numeric-widen",
     //"-Ywarn-value-discard", // fails with @sp on Unit
     "-Xfuture"
-  ) ++ (CrossVersion.partialVersion(scalaVersion.value) match {
-    case Some((2, 10)) => Seq.empty
-    case _ => Seq("-Ywarn-unused-import")
-  }),
+  ) ++ (if (preScala2_13(scalaVersion.value)) Seq("-Yno-adapted-args") else Seq.empty),
   resolvers += Resolver.sonatypeRepo("public"),
   scalacOptions in (Compile, console) ~= (_ filterNot (_ == "-Ywarn-unused-import")),
   scalacOptions in (Test, console) := (scalacOptions in (Compile, console)).value,
@@ -140,7 +145,7 @@ lazy val laws = crossProject
   .settings(libraryDependencies ++= Seq(
     "org.typelevel" %%% "cats-kernel-laws" % catsVersion,
     "org.scalacheck" %%% "scalacheck" % scalaCheckVersion,
-    "org.typelevel" %%% "discipline" % disciplineVersion,
+    "org.typelevel" %%% "discipline" % disciplineVersion(scalaVersion.value),
     "org.typelevel" %%% "catalysts-platform" % catalystsVersion % "test",
     "org.typelevel" %%% "catalysts-macros" % catalystsVersion % "test",
     "org.scalatest" %%% "scalatest" % scalaTestVersion % "test"))

core/src/main/scala/algebra/instances/map.scala

@@ -50,7 +50,7 @@ class MapAdditiveMonoid[K, V](implicit V: AdditiveSemigroup[V]) extends Additive
     else if (n == 0) zero
     else throw new IllegalArgumentException("Illegal negative exponent to sumN: %s" format n)
 
-  override def sum(as: TraversableOnce[Map[K, V]]): Map[K, V] = {
+  override def sum(as: Iterator[Map[K, V]]): Map[K, V] = {
     val acc = mutable.Map.empty[K, V]
     as.foreach { m =>
       val it = m.iterator
@@ -93,7 +93,7 @@ class MapSemiring[K, V](implicit V: Semiring[V]) extends MapAdditiveMonoid[K, V]
     else if (n == 1) x
     else x.map { case (k, v) => (k, V.pow(v, n)) }
 
-  override def tryProduct(as: TraversableOnce[Map[K, V]]): Option[Map[K, V]] =
+  override def tryProduct(as: Iterator[Map[K, V]]): Option[Map[K, V]] =
     if (as.isEmpty) {
       None
     } else {

core/src/main/scala/algebra/ring/Additive.scala

@@ -7,7 +7,6 @@ import scala.annotation.tailrec
 trait AdditiveSemigroup[@sp(Int, Long, Float, Double) A] extends Any with Serializable {
   def additive: Semigroup[A] = new Semigroup[A] {
     def combine(x: A, y: A): A = plus(x, y)
-    override def combineAllOption(as: TraversableOnce[A]): Option[A] = trySum(as)
   }
 
   def plus(x: A, y: A): A
@@ -30,23 +29,23 @@ trait AdditiveSemigroup[@sp(Int, Long, Float, Double) A] extends Any with Serial
    *
    * If the sequence is empty, returns None. Otherwise, returns Some(total).
    */
-  def trySum(as: TraversableOnce[A]): Option[A] =
+  def trySum(as: Iterable[A]): Option[A] = // this one should not need to be overridden
+    trySum(as.iterator)
+
+  def trySum(as: Iterator[A]): Option[A] = // override this one in sub-classes
     as.reduceOption(plus)
 }
 
 trait AdditiveCommutativeSemigroup[@sp(Int, Long, Float, Double) A] extends Any with AdditiveSemigroup[A] {
   override def additive: CommutativeSemigroup[A] = new CommutativeSemigroup[A] {
     def combine(x: A, y: A): A = plus(x, y)
-    override def combineAllOption(as: TraversableOnce[A]): Option[A] = trySum(as)
   }
 }
 
 trait AdditiveMonoid[@sp(Int, Long, Float, Double) A] extends Any with AdditiveSemigroup[A] {
   override def additive: Monoid[A] = new Monoid[A] {
     def empty = zero
     def combine(x: A, y: A): A = plus(x, y)
-    override def combineAllOption(as: TraversableOnce[A]): Option[A] = trySum(as)
-    override def combineAll(as: TraversableOnce[A]): A = sum(as)
   }
 
   def zero: A
@@ -64,19 +63,25 @@ trait AdditiveMonoid[@sp(Int, Long, Float, Double) A] extends Any with AdditiveS
   /**
    * Given a sequence of `as`, compute the sum.
    */
-  def sum(as: TraversableOnce[A]): A =
-    as.foldLeft(zero)(plus)
+  def sum(as: Iterable[A]): A =
+    sum(as.iterator)
+
+  def sum(as: Iterator[A]): A = {
+    var s = zero
+    while (as.hasNext) {
+      s = plus(s, as.next)
+    }
+    s
+  }
 
-  override def trySum(as: TraversableOnce[A]): Option[A] =
+  override def trySum(as: Iterator[A]): Option[A] =
     if (as.isEmpty) None else Some(sum(as))
 }
 
 trait AdditiveCommutativeMonoid[@sp(Int, Long, Float, Double) A] extends Any with AdditiveMonoid[A] with AdditiveCommutativeSemigroup[A] {
   override def additive: CommutativeMonoid[A] = new CommutativeMonoid[A] {
     def empty = zero
     def combine(x: A, y: A): A = plus(x, y)
-    override def combineAllOption(as: TraversableOnce[A]): Option[A] = trySum(as)
-    override def combineAll(as: TraversableOnce[A]): A = sum(as)
   }
 }
 
@@ -86,8 +91,6 @@ trait AdditiveGroup[@sp(Int, Long, Float, Double) A] extends Any with AdditiveMo
     def combine(x: A, y: A): A = plus(x, y)
     override def remove(x: A, y: A): A = minus(x, y)
     def inverse(x: A): A = negate(x)
-    override def combineAllOption(as: TraversableOnce[A]): Option[A] = trySum(as)
-    override def combineAll(as: TraversableOnce[A]): A = sum(as)
   }
 
   def negate(x: A): A
@@ -106,8 +109,6 @@ trait AdditiveCommutativeGroup[@sp(Int, Long, Float, Double) A] extends Any with
     def combine(x: A, y: A): A = plus(x, y)
     override def remove(x: A, y: A): A = minus(x, y)
     def inverse(x: A): A = negate(x)
-    override def combineAllOption(as: TraversableOnce[A]): Option[A] = trySum(as)
-    override def combineAll(as: TraversableOnce[A]): A = sum(as)
   }
 }
 
@@ -122,7 +123,10 @@ trait AdditiveSemigroupFunctions[S[T] <: AdditiveSemigroup[T]] {
   def sumN[@sp(Int, Long, Float, Double) A](a: A, n: Int)(implicit ev: S[A]): A =
     ev.sumN(a, n)
 
-  def trySum[A](as: TraversableOnce[A])(implicit ev: S[A]): Option[A] =
+  def trySum[A](as: Iterable[A])(implicit ev: S[A]): Option[A] =
+    ev.trySum(as)
+
+  def trySum[A](as: Iterator[A])(implicit ev: S[A]): Option[A] =
     ev.trySum(as)
 }
 
@@ -133,7 +137,10 @@ trait AdditiveMonoidFunctions[M[T] <: AdditiveMonoid[T]]  extends AdditiveSemigr
   def isZero[@sp(Int, Long, Float, Double) A](a: A)(implicit ev0: M[A], ev1: Eq[A]): Boolean =
     ev0.isZero(a)
 
-  def sum[@sp(Int, Long, Float, Double) A](as: TraversableOnce[A])(implicit ev: M[A]): A =
+  def sum[@sp(Int, Long, Float, Double) A](as: Iterable[A])(implicit ev: M[A]): A =
+    ev.sum(as)
+
+  def sum[@sp(Int, Long, Float, Double) A](as: Iterator[A])(implicit ev: M[A]): A =
     ev.sum(as)
 }
 

core/src/main/scala/algebra/ring/Multiplicative.scala

@@ -30,7 +30,10 @@ trait MultiplicativeSemigroup[@sp(Int, Long, Float, Double) A] extends Any with
    *
    * If the sequence is empty, returns None. Otherwise, returns Some(total).
    */
-  def tryProduct(as: TraversableOnce[A]): Option[A] =
+  def tryProduct(as: Iterable[A]): Option[A] = // should not need to be overridden
+    tryProduct(as.iterator)
+
+  def tryProduct(as: Iterator[A]): Option[A] = // override this one in subclasses
     as.reduceOption(times)
 }
 
@@ -61,10 +64,18 @@ trait MultiplicativeMonoid[@sp(Int, Long, Float, Double) A] extends Any with Mul
   /**
    * Given a sequence of `as`, compute the product.
    */
-  def product(as: TraversableOnce[A]): A =
-    as.foldLeft(one)(times)
+  def product(as: Iterable[A]): A =
+    product(as.iterator)
+
+  def product(as: Iterator[A]): A = {
+    var p = one
+    while (as.hasNext) {
+      p = times(p, as.next)
+    }
+    p
+  }
 
-  override def tryProduct(as: TraversableOnce[A]): Option[A] =
+  override def tryProduct(as: Iterator[A]): Option[A] =
     if (as.isEmpty) None else Some(product(as))
 }
 
@@ -111,7 +122,10 @@ trait MultiplicativeSemigroupFunctions[S[T] <: MultiplicativeSemigroup[T]] {
   def pow[@sp(Int, Long, Float, Double) A](a: A, n: Int)(implicit ev: S[A]): A =
     ev.pow(a, n)
 
-  def tryProduct[A](as: TraversableOnce[A])(implicit ev: S[A]): Option[A] =
+  def tryProduct[A](as: Iterable[A])(implicit ev: S[A]): Option[A] =
+    ev.tryProduct(as)
+
+  def tryProduct[A](as: Iterator[A])(implicit ev: S[A]): Option[A] =
     ev.tryProduct(as)
 }
 
@@ -122,7 +136,10 @@ trait MultiplicativeMonoidFunctions[M[T] <: MultiplicativeMonoid[T]] extends Mul
   def isOne[@sp(Int, Long, Float, Double) A](a: A)(implicit ev0: M[A], ev1: Eq[A]): Boolean =
     ev0.isOne(a)
 
-  def product[@sp(Int, Long, Float, Double) A](as: TraversableOnce[A])(implicit ev: M[A]): A =
+  def product[@sp(Int, Long, Float, Double) A](as: Iterable[A])(implicit ev: M[A]): A =
+    ev.product(as)
+
+  def product[@sp(Int, Long, Float, Double) A](as: Iterator[A])(implicit ev: M[A]): A =
     ev.product(as)
 }
 

project/plugins.sbt

@@ -1,10 +1,10 @@
-addSbtPlugin("com.eed3si9n"      % "sbt-unidoc"      % "0.4.1")
-addSbtPlugin("com.47deg"         % "sbt-microsites"  % "0.7.16")
+addSbtPlugin("com.eed3si9n"      % "sbt-unidoc"      % "0.4.2")
+addSbtPlugin("com.47deg"         % "sbt-microsites"  % "0.7.27")
 addSbtPlugin("com.github.gseitz" % "sbt-release"     % "1.0.7")
 addSbtPlugin("com.jsuereth"      % "sbt-pgp"         % "1.1.0")
 addSbtPlugin("org.xerial.sbt"    % "sbt-sonatype"    % "2.3")
 addSbtPlugin("com.typesafe.sbt"  % "sbt-ghpages"     % "0.6.2")
-addSbtPlugin("org.scala-js"      % "sbt-scalajs"     % "0.6.22")
+addSbtPlugin("org.scala-js"      % "sbt-scalajs"     % "0.6.25")
 addSbtPlugin("com.typesafe"      % "sbt-mima-plugin" % "0.1.18")
-addSbtPlugin("org.scoverage"     % "sbt-scoverage"   % "1.5.1")
+addSbtPlugin("org.scoverage"     % "sbt-scoverage"   % "1.6.0-M5")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh"        % "0.3.3")