From 02c8f2f6687f1cb5ef500dd8d65ed03c8c7a4ebd Mon Sep 17 00:00:00 2001
From: Tomasz Godzik <tomek.godzik@gmail.com>
Date: Wed, 17 Feb 2021 16:16:48 +0100
Subject: [PATCH] Add support for Scala 3.0.0-RC1

---
 .github/workflows/ci.yml                      |  2 +-
 bin/test-release.sh                           |  1 +
 build.sbt                                     |  4 ++--
 .../mdoc/internal/markdown/SectionInput.scala | 12 +---------
 .../mdoc/internal/pprint/TypePrinter.scala    | 24 +++++++++++++++++++
 .../mdoc/internal/sourcecode/Macros.scala     | 18 ++++++++++++++
 6 files changed, 47 insertions(+), 14 deletions(-)
 create mode 100644 runtime/src/main/scala-3.0.0-RC1/mdoc/internal/pprint/TypePrinter.scala
 create mode 100644 runtime/src/main/scala-3.0.0-RC1/mdoc/internal/sourcecode/Macros.scala

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 38fc6d70..2a4e8edb 100644
--- a/.github/workflows/ci.yml
+++ b/.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
diff --git a/bin/test-release.sh b/bin/test-release.sh
index e2cf9bba..c31877e0 100755
--- a/bin/test-release.sh
+++ b/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 \
diff --git a/build.sbt b/build.sbt
index f10e4fab..5478107b 100644
--- a/build.sbt
+++ b/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"
 }
diff --git a/mdoc/src/main/scala-3/mdoc/internal/markdown/SectionInput.scala b/mdoc/src/main/scala-3/mdoc/internal/markdown/SectionInput.scala
index ea820d2d..dc271184 100644
--- a/mdoc/src/main/scala-3/mdoc/internal/markdown/SectionInput.scala
+++ b/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)
 }
diff --git a/runtime/src/main/scala-3.0.0-RC1/mdoc/internal/pprint/TypePrinter.scala b/runtime/src/main/scala-3.0.0-RC1/mdoc/internal/pprint/TypePrinter.scala
new file mode 100644
index 00000000..13c2c702
--- /dev/null
+++ b/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) } }  }
+  }
+}
diff --git a/runtime/src/main/scala-3.0.0-RC1/mdoc/internal/sourcecode/Macros.scala b/runtime/src/main/scala-3.0.0-RC1/mdoc/internal/sourcecode/Macros.scala
new file mode 100644
index 00000000..e6d43fc8
--- /dev/null
+++ b/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)})}
+  }
+}
\ No newline at end of file