Add support for Scala 3.0.0-RC1

Author: tgodzik

.github/workflows/ci.yml

@@ -30,8 +30,8 @@ jobs:
           - "'++2.11.12 test'"
           - "'++2.12.13 test' scripted"
           - "'++2.13.4 test'"
-          - "'++3.0.0-M2 test'"
           - "'++3.0.0-M3 test'"
+          - "'++3.0.0-RC1 test'"
     steps:
       - uses: actions/checkout@v2
       - uses: olafurpg/setup-scala@v10

bin/test-release.sh

@@ -12,6 +12,7 @@ coursier fetch \
   org.scalameta:mdoc_2.13:$version \
   org.scalameta:mdoc_3.0.0-M2:$version \
   org.scalameta:mdoc_3.0.0-M3:$version \
+  org.scalameta:mdoc_3.0.0-RC1:$version \
   org.scalameta:mdoc-js_2.11:$version \
   org.scalameta:mdoc-js_2.12.12:$version \
   org.scalameta:mdoc-js_2.12:$version \

build.sbt

@@ -5,7 +5,7 @@ def scala212 = "2.12.13"
 def scala212Legacy = "2.12.12"
 def scala211 = "2.11.12"
 def scala213 = "2.13.4"
-def scala3 = List("3.0.0-M3", "3.0.0-M2")
+def scala3 = List("3.0.0-RC1", "3.0.0-M3", "3.0.0-M2")
 
 def scalajs = "1.3.0"
 def scalajsBinaryVersion = "1"
@@ -113,7 +113,7 @@ lazy val sharedSettings = List(
 
 val V = new {
   val scalameta = "4.4.7"
-  val munit = "0.7.21"
+  val munit = "0.7.22"
   val coursier = "1.0.2"
   val scalacheck = "1.15.2"
 }

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

@@ -42,18 +42,8 @@ case class SectionInput(input : Input, mod : Modifier, context : MContext){
   def show(tree : Tree, currentIdent : Int) = {
      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 {
-          case ext: ExtMethods if ext.tparams.nonEmpty =>
-            "extension ["
-          case _: ExtMethods =>
-            "extension ("
-          case _ =>  ""
-        } 
-     else ""
      val realIdent = " " * (currentIdent - wrapIdent.size)
-     prefix + sourceCode.substring(str, end).replace("\n", "\n" + realIdent)
+     sourceCode.substring(str, end).replace("\n", "\n" + realIdent)
   }
   def text = source.show(using driver.currentCtx)
 }

runtime/src/main/scala-3.0.0-RC1/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-RC1/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] = ${ Macros.text('v) }
+}
+
+object Macros{
+
+  def text[T: Type](v: Expr[T])(using ctx: Quotes): Expr[SourceStatement[T]] = {
+    import ctx.reflect.{_, given}
+    val txt =  v.asTerm.pos.sourceCode.getOrElse("")
+    '{SourceStatement[T]($v, ${Expr(txt)})}
+  }
+}