wip:add native build

.github/workflows/ci.yml

@@ -67,11 +67,11 @@ jobs:
 
       - name: Make target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
-        run: mkdir -p target docs/target core/js/target core/jvm/target project/target
+        run: mkdir -p target core/native/target docs/target core/js/target core/jvm/target project/target
 
       - name: Compress target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
-        run: tar cf targets.tar target docs/target core/js/target core/jvm/target project/target
+        run: tar cf targets.tar target core/native/target docs/target core/js/target core/jvm/target project/target
 
       - name: Upload target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')

build.sbt

@@ -77,7 +77,7 @@ lazy val jvmVersionSettings = VersionNumber(sys.props("java.version")) match {
 
 lazy val root = project
   .in(file("."))
-  .aggregate(core.jvm, core.js, bench)
+  .aggregate(core.jvm, core.js, core.native, bench)
   .enablePlugins(NoPublishPlugin)
   .settings(scalaVersion := "2.13.8")
 
@@ -109,7 +109,7 @@ lazy val docs = project
   )
   .dependsOn(coreJVM, bench)
 
-lazy val core = crossProject(JSPlatform, JVMPlatform)
+lazy val core = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .crossType(CrossType.Full)
   .settings(
     name := "cats-parse",
@@ -156,6 +156,7 @@ lazy val core = crossProject(JSPlatform, JVMPlatform)
 
 lazy val coreJVM = core.jvm.settings(jvmVersionSettings)
 lazy val coreJS = core.js
+lazy val coreNative = core.native
 
 lazy val bench = project
   .enablePlugins(JmhPlugin, NoPublishPlugin)

core/js/src/main/scala/cats/parse/BitSet.scala

@@ -26,6 +26,7 @@ import scala.collection.mutable.BitSet
 object BitSetUtil {
   type Tpe = BitSet
 
+  @inline final val isScalaNative = false
   @inline final val isScalaJs = true
   @inline final val isScalaJvm = false
 

core/jvm/src/main/scala/cats/parse/BitSet.scala

@@ -25,7 +25,7 @@ import java.util.BitSet
 
 object BitSetUtil {
   type Tpe = BitSet
-
+  @inline final val isScalaNative = false
   @inline final val isScalaJs = false
   @inline final val isScalaJvm = true
 

core/native/src/main/scala/cats/parse/BitSet.scala

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2021 Typelevel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package cats.parse
+
+import scala.collection.mutable.BitSet
+
+object BitSetUtil {
+  type Tpe = BitSet
+  @inline final val isScalaNative = true
+  @inline final val isScalaJs = false
+  @inline final val isScalaJvm = false
+
+  @inline final def isSet(b: BitSet, idx: Int): Boolean =
+    (idx >= 0) && b(idx)
+
+  def bitSetFor(charArray: Array[Char]): BitSet = {
+    val min = charArray(0).toInt
+    val bs = new BitSet(charArray(charArray.length - 1).toInt + 1 - min)
+    var idx = 0
+    while (idx < charArray.length) {
+      bs += charArray(idx).toInt - min
+      idx += 1
+    }
+
+    bs
+  }
+
+  def isSingleton(t: Tpe): Boolean = t.size == 1
+
+  def union(bs: List[(Int, BitSet)]): Iterable[Char] =
+    union(bs.iterator)
+
+  // what are all the Chars in these bitsets
+  def union(bs: Iterator[(Int, BitSet)]): Iterable[Char] = {
+    def toIter(m: Int, bs: BitSet): Iterator[Char] =
+      bs.iterator.map { i => (i + m).toChar } ++ Iterator.single(m.toChar)
+
+    bs.flatMap { case (m, bs) => toIter(m, bs) }.toSet
+  }
+
+  def bitSetForRange(count: Int): BitSet = {
+    val bs = new BitSet(count)
+    var cur = 0
+    while (cur < count) {
+      bs += cur
+      cur += 1
+    }
+    bs
+  }
+}

core/shared/src/test/scala/cats/parse/BitSetTest.scala

@@ -24,11 +24,10 @@ package cats.parse
 import org.scalacheck.Prop.forAll
 
 class BitSetTest extends munit.ScalaCheckSuite {
-  test("isScalaJs/isScalaJvm is consistent") {
-    // This will need to be updated if we ever add scala-native
-    assert(!(BitSetUtil.isScalaJs && BitSetUtil.isScalaJvm))
-    assert(BitSetUtil.isScalaJs || BitSetUtil.isScalaJvm)
-    assert(BitSetUtil.isScalaJs ^ BitSetUtil.isScalaJvm)
+  test("isScalaJs/isScalaJvm/isScalaNative is consistent") {
+    assert(!(BitSetUtil.isScalaJs && BitSetUtil.isScalaJvm && BitSetUtil.isScalaNative))
+    assert(BitSetUtil.isScalaJs || BitSetUtil.isScalaJvm || BitSetUtil.isScalaNative)
+    assert(BitSetUtil.isScalaJs ^ BitSetUtil.isScalaJvm ^ BitSetUtil.isScalaNative)
   }
 
   property("BitSetUtil union works") {

project/plugins.sbt

@@ -2,7 +2,9 @@ addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "1.1.0")
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.10.0")
 addSbtPlugin("com.lightbend.paradox" % "sbt-paradox" % "0.9.2")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.1.0")
+addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.1.0")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.8.0")
+addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.1")
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.9.3")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.3")
 addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.4.4")