Stabilise SIP-47

Author: hamzaremmal

compiler/src/dotty/tools/dotc/config/Feature.scala

@@ -121,7 +121,8 @@ object Feature:
 
   def namedTypeArgsEnabled(using Context) = enabled(namedTypeArguments)
 
-  def clauseInterleavingEnabled(using Context) = enabled(clauseInterleaving)
+  def clauseInterleavingEnabled(using Context) =
+    sourceVersion.isAtLeast(`3.6`) || enabled(clauseInterleaving)
 
   def genericNumberLiteralsEnabled(using Context) = enabled(genericNumberLiterals)
 

compiler/src/dotty/tools/dotc/parsing/Parsers.scala

@@ -3878,13 +3878,11 @@ object Parsers {
         val ident = termIdent()
         var name = ident.name.asTermName
         val paramss =
-          if in.featureEnabled(Feature.clauseInterleaving) then
-            // If you are making interleaving stable manually, please refer to the PR introducing it instead, section "How to make non-experimental"
+          if Feature.clauseInterleavingEnabled(using in.languageImportContext) then
             typeOrTermParamClauses(ParamOwner.Def, numLeadParams)
           else
             val tparams = typeParamClauseOpt(ParamOwner.Def)
             val vparamss = termParamClauses(ParamOwner.Def, numLeadParams)
-
             joinParams(tparams, vparamss)
 
         var tpt = fromWithinReturnType { typedOpt() }

docs/_docs/reference/experimental/generalized-method-syntax.md renamed to docs/_docs/reference/other-new-features/generalized-method-syntax.md

@@ -1,15 +1,9 @@
 ---
 layout: doc-page
 title: "Generalized Method Syntax"
-nightlyOf: https://docs.scala-lang.org/scala3/reference/experimental/generalized-method-syntax.html
+nightlyOf: https://docs.scala-lang.org/scala3/reference/other-new-features/generalized-method-syntax.html
 ---
 
-This feature is not yet part of the Scala 3 language definition. It can be made available by a language import:
-
-```scala
-import scala.language.experimental.clauseInterleaving
-```
-
 The inclusion of using clauses is not the only way in which methods have been updated, type parameter clauses are now allowed in any number and at any position.
 
 ## Syntax Changes
@@ -51,7 +45,7 @@ trait DB {
 }
 ```
 
-Note that simply replacing `V` by `k.Value` would not be equivalent. For example, if `k.Value` is `Some[Int]`, only the above allows: 
+Note that simply replacing `V` by `k.Value` would not be equivalent. For example, if `k.Value` is `Some[Int]`, only the above allows:
 `getOrElse(k)[Option[Int]](None)`, which returns a `Number`.
 
 ## Details

library/src/scala/runtime/stdLibPatches/language.scala

@@ -67,6 +67,7 @@ object language:
       * @see [[https://github.com/scala/improvement-proposals/blob/main/content/clause-interleaving.md]]
       */
     @compileTimeOnly("`clauseInterleaving` can only be used at compile time in import statements")
+    @deprecated("`clauseInterleaving` is now standard, no language import is needed", since = "3.6")
     object clauseInterleaving
 
     /** Experimental support for pure function type syntax

presentation-compiler/test/dotty/tools/pc/tests/signaturehelp/SignatureHelpInterleavingSuite.scala

@@ -8,9 +8,6 @@ import java.nio.file.Path
 
 class SignatureHelpInterleavingSuite extends BaseSignatureHelpSuite:
 
-  override protected def scalacOptions(classpath: Seq[Path]): Seq[String] =
-    List("-language:experimental.clauseInterleaving")
-
   @Test def `proper-position-1` =
     check(
       """

scaladoc-testcases/src/tests/extensionParams.scala

@@ -61,8 +61,6 @@ extension (using Unit)(a: Int)
   def f14(): Any
   = ???
 
-import scala.language.experimental.clauseInterleaving
-
 extension (using String)(using Int)(a: Animal)(using Unit)(using Number)
   def f16(b: Any)[T](c: T): T
   = ???

scaladoc-testcases/src/tests/methodsAndConstructors.scala

@@ -1,7 +1,5 @@
 package tests.methodsAndConstructors
 
-import scala.language.experimental.clauseInterleaving
-
 class A
 class B extends A
 class C

tests/neg/interleaving-ab.scala

@@ -1,11 +1,10 @@
-import scala.language.experimental.clauseInterleaving
 
 object Ab:
   given String = ""
   given Double = 0
 
   def illegal[A][B](x: A)(using B): B = summon[B] // error: Type parameter lists must be separated by a term or using parameter list
-  
+
   def ab[A](x: A)[B](using B): B = summon[B]
   def test =
     ab[Int](0: Int) // error

tests/neg/interleaving-params.scala

@@ -1,4 +1,3 @@
-import scala.language.experimental.clauseInterleaving
 
 class Params{
     def bar[T](x: T)[T]: String = ??? // error

tests/neg/interleaving-signatureCollision.scala

@@ -1,4 +1,3 @@
-import scala.language.experimental.clauseInterleaving
 
 object signatureCollision:
     def f[T](x: T)[U](y: U) = (x,y)