OrganizeImports: support Scala3 syntax as output

docs/rules/OrganizeImports.md

@@ -1374,11 +1374,16 @@ OrganizeImports {
 Before:
 
 ```scala
+import scala.collection.immutable.{List => L}
+import scala.collection.mutable.{Map, Buffer => _, Seq => S, _}
 ```
 
 After:
 
 ```scala
+import scala.collection.immutable.{List => L}
+import scala.collection.mutable.Map
+import scala.collection.mutable.{Buffer => _, Seq => S, _}
 ```
 
 #### `Scala3` 
@@ -1392,10 +1397,17 @@ OrganizeImports {
 Before:
 
 ```scala
+import scala.collection.immutable.{List => L}
+import scala.collection.mutable.{Map, Buffer => _, Seq => S, _}
+import scala.concurrent.ExecutionContext.Implicits.{given scala.concurrent.ExecutionContext}
 ```
 
 After:
 
 ```scala
+import scala.collection.immutable.List as L
+import scala.collection.mutable.Map
+import scala.collection.mutable.{Buffer as _, Seq as S, *}
+import scala.concurrent.ExecutionContext.Implicits.given scala.concurrent.ExecutionContext
 ```
 

scalafix-rules/src/main/scala/scalafix/internal/rule/OrganizeImports.scala

@@ -572,7 +572,12 @@ class OrganizeImports(
 
  importer match {
  case Importer(_, Importee.Wildcard() :: Nil) =>
- syntax.patch(syntax.lastIndexOfSlice("._"), ".\u0001", 2)
+ val wildcardSyntax = Importee.Wildcard().syntax
+ syntax.patch(
+ syntax.lastIndexOfSlice(s".$wildcardSyntax"),
+ ".\u0001",
+ 2
+ )
 
  case _ if importer.isCurlyBraced =>
  syntax
@@ -714,9 +719,48 @@ class OrganizeImports(
  private def importerSyntax(importer: Importer): String =
  importer.pos match {
  case pos: Position.Range =>
- // Position found, implies that `importer` was directly parsed from the source code. Returns
- // the original parsed text to preserve the original source level formatting.
- pos.text
+ // Position found, implies that `importer` was directly parsed from the source code. Use
+ // the original parsed text to preserve the original source level formatting, but patch
+ // importee that have specific Scala 3 syntax.
+ val syntax = new StringBuilder(pos.text)
+ def patchSyntax(
+ t: Tree,
+ newSyntax: String,
+ stripEnclosingBraces: Boolean = false
+ ) = {
+ val start = t.pos.start - pos.start
+ syntax.replace(start, t.pos.end - pos.start, newSyntax)
+ val end = t.pos.start - pos.start + newSyntax.length
+
+ if (stripEnclosingBraces)
+ (
+ syntax.take(start).lastIndexOf('{'),
+ syntax.indexOf('}', end)
+ ) match {
+ case (from, to) if from != -1 && to != -1 =>
+ syntax.delete(end, to + 1)
+ syntax.delete(from, start)
+ case _ =>
+ }
+ }
+ val Importer(_, importees) = importer
+ val optionalBraces =
+ importees.length == 1 && targetDialect.allowAsForImportRename
+ // traverse & patch backwards to avoid shifting indices
+ importees.reverse.foreach {
+ case i @ Importee.Rename(_, _) =>
+ patchSyntax(i, i.copy().syntax, optionalBraces)
+ case i @ Importee.Unimport(_) =>
+ patchSyntax(i, i.copy().syntax, optionalBraces)
+ case i @ Importee.Wildcard() =>
+ patchSyntax(i, i.copy().syntax)
+ case i @ Importee.GivenAll() =>
+ patchSyntax(i, i.copy().syntax, importees.length == 1)
+ case i @ Importee.Given(_) =>
+ patchSyntax(i, i.copy().syntax, importees.length == 1)
+ case _ =>
+ }
+ syntax.toString
 
  case Position.None =>
  // Position not found, implies that `importer` is derived from certain existing import
@@ -742,7 +786,9 @@ class OrganizeImports(
  def isCurlyBraced: Boolean = {
  val importees @ Importees(_, renames, unimports, _, _, _) =
  importer.importees
- renames.nonEmpty || unimports.nonEmpty || importees.length > 1
+
+ importees.length > 1 ||
+ ((renames.length == 1 || unimports.length == 1) && !targetDialect.allowAsForImportRename)
  }
 
  /**

scalafix-tests/input/src/main/scala-3/test/organizeImports/CoalesceImporteesGivensAndNames.scala

@@ -4,6 +4,7 @@ OrganizeImports {
  groupedImports = Keep
  coalesceToWildcardImportThreshold = 2
  removeUnused = false
+ targetDialect = Scala3
 }
  */
 package test.organizeImports

scalafix-tests/input/src/main/scala-3/test/organizeImports/CoalesceImporteesNoGivens.scala

@@ -4,6 +4,7 @@ OrganizeImports {
  groupedImports = Keep
  coalesceToWildcardImportThreshold = 2
  removeUnused = false
+ targetDialect = Scala3
 }
  */
 package test.organizeImports

scalafix-tests/input/src/main/scala-3/test/organizeImports/CoalesceImporteesNoGivensNoNames.scala

@@ -4,6 +4,7 @@ OrganizeImports {
  groupedImports = Keep
  coalesceToWildcardImportThreshold = 2
  removeUnused = false
+ targetDialect = Scala3
 }
  */
 package test.organizeImports

scalafix-tests/input/src/main/scala-3/test/organizeImports/CoalesceImporteesNoNames.scala

@@ -4,6 +4,7 @@ OrganizeImports {
  groupedImports = Keep
  coalesceToWildcardImportThreshold = 2
  removeUnused = false
+ targetDialect = Scala3
 }
  */
 package test.organizeImports

scalafix-tests/input/src/main/scala-3/test/organizeImports/DeduplicateGivenImportees.scala

@@ -1,6 +1,7 @@
 /*
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
+OrganizeImports.targetDialect = Scala3
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala-3/test/organizeImports/ExpandGiven.scala

@@ -1,12 +1,14 @@
 /*
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
+OrganizeImports.targetDialect = Scala3
  */
 package test.organizeImports
 
 import test.organizeImports.GivenImports.Beta
 import test.organizeImports.GivenImports.Alpha
-import test.organizeImports.GivenImports.{given Beta, given Alpha}
+import test.organizeImports.GivenImports.{given Beta, given test.organizeImports.GivenImports.Gamma, given Alpha}
+import test.organizeImports.GivenImports2.{given Beta, given}
 import scala.util.Either
 
 object ExpandGiven

scalafix-tests/input/src/main/scala-3/test/organizeImports/ExpandUnimportGiven.scala

@@ -1,6 +1,7 @@
 /*
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
+OrganizeImports.targetDialect = Scala3
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala-3/test/organizeImports/GroupedGivenImportsMergeUnimports.scala

@@ -2,17 +2,18 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = Merge
+OrganizeImports.targetDialect = Scala3
  */
 package test.organizeImports
 
-import test.organizeImports.GivenImports._
-import test.organizeImports.GivenImports.{alpha => _, given}
+import test.organizeImports.GivenImports.*
+import test.organizeImports.GivenImports.{alpha as _, given}
 import test.organizeImports.GivenImports.{given Beta}
-import test.organizeImports.GivenImports.{gamma => _, given}
+import test.organizeImports.GivenImports.{gamma as _, given}
 import test.organizeImports.GivenImports.{given Zeta}
 
-import test.organizeImports.GivenImports2.{alpha => _}
-import test.organizeImports.GivenImports2.{beta => _}
+import test.organizeImports.GivenImports2.{alpha as _}
+import test.organizeImports.GivenImports2.beta as _
 import test.organizeImports.GivenImports2.{given Gamma}
 import test.organizeImports.GivenImports2.{given Zeta}
 

scalafix-tests/input/src/main/scala-3/test/organizeImports/GroupedImportsAggressiveMergeGivenAll.scala

@@ -2,6 +2,7 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = AggressiveMerge
+OrganizeImports.targetDialect = Scala3
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala-3/test/organizeImports/MergeGiven.scala

@@ -2,12 +2,14 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = Merge
+OrganizeImports.targetDialect = Scala3
  */
 package test.organizeImports
 
 import test.organizeImports.GivenImports.Beta
 import test.organizeImports.GivenImports.Alpha
 import test.organizeImports.GivenImports.{given Beta}
+import test.organizeImports.GivenImports.given test.organizeImports.GivenImports.Gamma
 import test.organizeImports.GivenImports.{given Alpha}
 import scala.util.Either
 

scalafix-tests/input/src/main/scala-3/test/organizeImports/MergeImportsFormatPreservingGiven.scala

@@ -0,0 +1,14 @@
+/*
+rules = [OrganizeImports]
+OrganizeImports.removeUnused = false
+OrganizeImports.groupedImports = Merge
+OrganizeImports.targetDialect = Scala3
+ */
+
+package test.organizeImports
+
+import test.organizeImports.GivenImports.*
+import test.organizeImports.GivenImports.{ given Alpha, given Beta }
+import test.organizeImports.GivenImports2.{ given Gamma }
+
+object MergeImportsFormatPreservingGiven

scalafix-tests/input/src/main/scala/test/organizeImports/CoalesceImportees.scala

@@ -4,6 +4,7 @@ OrganizeImports {
  groupedImports = Keep
  coalesceToWildcardImportThreshold = 3
  removeUnused = false
+ targetDialect = Auto
 }
  */
 package test.organizeImports

scalafix-tests/input/src/main/scala/test/organizeImports/CurlyBracedSingleImportee.scala

@@ -1,10 +1,12 @@
 /*
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
+OrganizeImports.targetDialect = Auto
  */
 package test.organizeImports
 
 import scala.collection.{Map}
+import scala.collection.{Seq => _}
 import scala.collection.{Set => ImmutableSet}
 
 object CurlyBracedSingleImportee

scalafix-tests/input/src/main/scala/test/organizeImports/ExpandRelativeRootPackage.scala

@@ -2,6 +2,7 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.expandRelative = true
+OrganizeImports.targetDialect = Auto
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala/test/organizeImports/ExplodeImportsFormatPreserving.scala

@@ -2,11 +2,12 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = Explode
+OrganizeImports.targetDialect = Auto
  */
 
 package test.organizeImports
 
 import test.organizeImports.ExplodeImports.FormatPreserving.g1.{ a, b }
-import test.organizeImports.ExplodeImports.FormatPreserving.g2.{ c => C, _ }
+import test.organizeImports.ExplodeImports.FormatPreserving.g2.{ c  =>  C, _ }
 
 object ExplodeImportsFormatPreserving

scalafix-tests/input/src/main/scala/test/organizeImports/GroupedImportsAggressiveMergeWildcard.scala

@@ -2,6 +2,7 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = AggressiveMerge
+OrganizeImports.targetDialect = Auto
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala/test/organizeImports/GroupedImportsExplodeMixed.scala

@@ -1,6 +1,7 @@
 /*
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
+OrganizeImports.targetDialect = Auto
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala/test/organizeImports/GroupedImportsExplodeUnimport.scala

@@ -1,6 +1,7 @@
 /*
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
+OrganizeImports.targetDialect = Auto
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala/test/organizeImports/GroupedImportsMergeDedup.scala

@@ -2,6 +2,7 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = Merge
+OrganizeImports.targetDialect = Auto
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala/test/organizeImports/GroupedImportsMergeRenames.scala

@@ -2,6 +2,7 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = Merge
+OrganizeImports.targetDialect = Auto
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala/test/organizeImports/GroupedImportsMergeUnimports.scala

@@ -2,6 +2,7 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = Merge
+OrganizeImports.targetDialect = Auto
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala/test/organizeImports/GroupedImportsMergeWildcard.scala

@@ -2,6 +2,7 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = Merge
+OrganizeImports.targetDialect = Auto
  */
 package test.organizeImports
 

scalafix-tests/input/src/main/scala/test/organizeImports/ImportsOrderKeep.scala

@@ -5,6 +5,7 @@ OrganizeImports {
  groupedImports = Keep
  importSelectorsOrder = Keep
  importsOrder = Keep
+ targetDialect = Auto
 }
  */
 package test.organizeImports

scalafix-tests/input/src/main/scala/test/organizeImports/ImportsOrderSymbolsFirst.scala

@@ -5,6 +5,7 @@ OrganizeImports {
  groupedImports = Keep
  importSelectorsOrder = Keep
  importsOrder = SymbolsFirst
+ targetDialect = Auto
 }
  */
 package test.organizeImports
@@ -15,6 +16,9 @@ import scala.concurrent.duration
 import scala.concurrent.{Promise, Future}
 
 import test.organizeImports.QuotedIdent.`a.b`.`{ d }`.e
+import test.organizeImports.QuotedIdent.`a.b`.`{ d }`.{ e => E }
+import test.organizeImports.QuotedIdent.`a.b`
+import test.organizeImports.QuotedIdent.{`a.b` => ab}
 import test.organizeImports.QuotedIdent.`a.b`.{c => _, _}
 import test.organizeImports.QuotedIdent._
 

scalafix-tests/input/src/main/scala/test/organizeImports/MergeImportsFormatPreserving.scala

@@ -2,11 +2,12 @@
 rules = [OrganizeImports]
 OrganizeImports.removeUnused = false
 OrganizeImports.groupedImports = Merge
+OrganizeImports.targetDialect = Auto
  */
 
 package test.organizeImports
 
-import test.organizeImports.MergeImports.FormatPreserving.g1.{ a, b }
+import test.organizeImports.MergeImports.FormatPreserving.g1.{ a, b => B }
 import test.organizeImports.MergeImports.FormatPreserving.g2._
 import test.organizeImports.MergeImports.FormatPreserving.g2.{ d => D }
 

scalafix-tests/output/src/main/scala/test/organizeImports/CurlyBracedSingleImportee.scala → scalafix-tests/output/src/main/scala-2/test/organizeImports/CurlyBracedSingleImportee.scala

@@ -1,6 +1,7 @@
 package test.organizeImports
 
 import scala.collection.Map
+import scala.collection.{Seq => _}
 import scala.collection.{Set => ImmutableSet}
 
 object CurlyBracedSingleImportee

scalafix-tests/output/src/main/scala/test/organizeImports/ImportsOrderSymbolsFirst.scala → scalafix-tests/output/src/main/scala-2/test/organizeImports/ImportsOrderSymbolsFirst.scala

@@ -1,7 +1,10 @@
 package test.organizeImports
 
 import test.organizeImports.QuotedIdent._
+import test.organizeImports.QuotedIdent.{`a.b` => ab}
+import test.organizeImports.QuotedIdent.`a.b`
 import test.organizeImports.QuotedIdent.`a.b`.{c => _, _}
+import test.organizeImports.QuotedIdent.`a.b`.`{ d }`.{ e => E }
 import test.organizeImports.QuotedIdent.`a.b`.`{ d }`.e
 
 import scala.concurrent._