Add support for Scala 3.0.0-M3

.github/workflows/ci.yml

@@ -31,6 +31,7 @@ jobs:
           - "'++2.12.12 test' scripted"
           - "'++2.13.4 test'"
           - "'++3.0.0-M2 test'"
+          - "'++3.0.0-M3 test'"
     steps:
       - uses: actions/checkout@v2
       - uses: olafurpg/setup-scala@v10

bin/test-release.sh

@@ -9,7 +9,8 @@ coursier fetch \
   org.scalameta:mdoc_2.11:$version \
   org.scalameta:mdoc_2.12:$version \
   org.scalameta:mdoc_2.13:$version \
-  org.scalameta:mdoc_3.0.0-M1:$version \
+  org.scalameta:mdoc_3.0.0-M2:$version \
+  org.scalameta:mdoc_3.0.0-M3:$version \
   org.scalameta:mdoc-js_2.11:$version \
   org.scalameta:mdoc-js_2.12:$version \
   org.scalameta:mdoc-js_2.13:$version $suffix

build.sbt

@@ -3,7 +3,7 @@ import scala.collection.mutable
 def scala212 = "2.12.12"
 def scala211 = "2.11.12"
 def scala213 = "2.13.4"
-def scala3 = List("3.0.0-M2")
+def scala3 = List("3.0.0-M3", "3.0.0-M2")
 
 def scalajs = "1.3.0"
 def scalajsBinaryVersion = "1"
@@ -12,8 +12,7 @@ def scalajsDom = "1.1.0"
 def isScala2(v: Option[(Long, Long)]): Boolean = v.exists(_._1 == 2)
 def isScala212(v: Option[(Long, Long)]): Boolean = v.exists(_._1 == 2) && v.exists(_._2 == 12)
 def isScala211(v: Option[(Long, Long)]): Boolean = v.exists(_._1 == 2) && v.exists(_._2 == 11)
-def isScala3(v: Option[(Long, Long)]): Boolean =
-  v.exists(_._1 == 0) || v.exists(_._1 == 3)
+def isScala3(v: Option[(Long, Long)]): Boolean = v.exists(_._1 == 3)
 
 val isScala213 = Def.setting {
   VersionNumber(scalaVersion.value).matchesSemVer(SemanticSelector(">=2.13"))
@@ -110,7 +109,7 @@ lazy val sharedSettings = List(
 
 val V = new {
   val scalameta = "4.4.0"
-  val munit = "0.7.19"
+  val munit = "0.7.20"
   val coursier = "1.0.2"
   val scalacheck = "1.15.1"
 }

mdoc/src/main/scala-3/mdoc/internal/markdown/Instrumenter.scala

@@ -62,8 +62,8 @@ class Instrumenter(
         printlnWithIndent("")
         printlnWithIndent("$doc.startSection();")
           section.stats.foreach { stat =>
-            printlnWithIndent(s"$$doc.startStatement(${position(stat.sourcePos)});")
-            printStatement(stat, section.mod, sb, section)
+            printlnWithIndent(s"$$doc.startStatement(${position(stat.sourcePos(using ctx))});")
+            printStatement(stat, section.mod, sb, section)(using ctx)
             printlnWithIndent("")
             printlnWithIndent("$doc.endStatement();")
           }

mdoc/src/main/scala-3/mdoc/internal/markdown/SectionInput.scala

@@ -30,7 +30,7 @@ case class SectionInput(input : Input, mod : Modifier, context : MContext){
   private val filename = "Section.scala"
   driver.run(java.net.URI.create("file:///Section.scala"), SourceFile.virtual(filename, sourceCode))
   val source = driver.currentCtx.run.units.head.untpdTree
-  given ctx as Context = driver.currentCtx
+  val ctx = driver.currentCtx
   def stats : List[Tree] = {
       source match {
         case PackageDef(_, List(module @ _ : ModuleDef)) => 
@@ -40,8 +40,8 @@ case class SectionInput(input : Input, mod : Modifier, context : MContext){
   }
 
   def show(tree : Tree, currentIdent : Int) = {
-     val str = tree.sourcePos.start 
-     val end = tree.sourcePos.end
+     val str = tree.sourcePos(using ctx).start 
+     val end = tree.sourcePos(using ctx).end
      // workaround should be removed once support for 0.26.0 is dropped
      val prefix = if (BuildInfo.scalaBinaryVersion == "0.26")
         tree match {

runtime/src/main/scala-3.0.0-M3/mdoc/internal/pprint/TypePrinter.scala

@@ -0,0 +1,24 @@
+package mdoc.internal.pprint
+
+import scala.language.implicitConversions
+import scala.quoted._
+import scala.quoted.runtime.impl.printers.SyntaxHighlight
+
+trait TPrint[T]{
+  def render: String
+}
+
+object TPrint {
+  inline given default[T]: TPrint[T] = ${ TypePrinter.typeString[T] }
+}
+
+object TypePrinter{
+
+  def typeString[T](using ctx: Quotes, tpe: Type[T]): Expr[TPrint[T]] = {
+    import ctx.reflect._
+
+    val valueType = TypeTree.of[T](using tpe).tpe.show(using Printer.TypeReprShortCode)
+
+    '{  new TPrint[T]{ def render: String = ${ Expr(valueType) } }  }
+  }
+}

runtime/src/main/scala-3.0.0-M3/mdoc/internal/sourcecode/Macros.scala

@@ -0,0 +1,18 @@
+package mdoc.internal.sourcecode
+
+import scala.language.implicitConversions
+import scala.quoted._
+
+trait StatementMacro {
+  inline implicit def generate[T](v: => T): SourceStatement[T] = ${ Macros.text('v) }
+  inline def apply[T](v: => T): SourceStatement[T] = ${ Macros.text('v) }
+}
+
+object Macros{
+
+  def text[T: Type](v: Expr[T])(using ctx: Quotes): Expr[SourceStatement[T]] = {
+    import ctx.reflect.{_, given}
+    val txt =  Term.of(v).pos.sourceCode.getOrElse("")
+    '{SourceStatement[T]($v, ${Expr(txt)})}
+  }
+}

tests/worksheets/src/test/scala/tests/worksheets/WorksheetSuite.scala

@@ -330,17 +330,18 @@ class WorksheetSuite extends BaseSuite {
        |""".stripMargin
   )
 
+  val givenSyntax = if (tests.BuildInfo.scalaVersion == "3.0.0-M2") "as C:" else ": C with"
   checkDiagnostics(
     "dotty-ambiguous-implicit".tag(OnlyScala3),
-    """|abstract class C:
-       |  val x: Int
-       |given c1 as C:
-       |  val x = 1
-       |given c2 as C:
-       |  val x = 2
-       |def fn(using c: C) = ()
-       |val xx = fn
-       |""".stripMargin,
+    s"""|abstract class C:
+        |  val x: Int
+        |given c1 $givenSyntax
+        |  val x = 1
+        |given c2 $givenSyntax
+        |  val x = 2
+        |def fn(using c: C) = ()
+        |val xx = fn
+        |""".stripMargin,
     """|dotty-ambiguous-implicit:8:10: error: ambiguous implicit arguments: both object c1 in class App and object c2 in class App match type App.this.C of parameter c of method fn in class App
        |val xx = fn
        |         ^^