From afc33571e839ff3bcb4b097f4b3021be40284c21 Mon Sep 17 00:00:00 2001
From: Brice Jaglin <bjaglin@gmail.com>
Date: Wed, 28 Feb 2024 22:40:32 +0100
Subject: [PATCH] support -Xsource:3-cross introduced in Scala 2.13.13

---
 .../src/main/scala/scalafix/internal/v1/Args.scala   |  4 +++-
 .../scalafix/internal/rule/OrganizeImports.scala     |  1 +
 .../tests/interfaces/ScalafixArgumentsSuite.scala    | 12 +++++++++++-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/scalafix-cli/src/main/scala/scalafix/internal/v1/Args.scala b/scalafix-cli/src/main/scala/scalafix/internal/v1/Args.scala
index b68320433..e10680331 100644
--- a/scalafix-cli/src/main/scala/scalafix/internal/v1/Args.scala
+++ b/scalafix-cli/src/main/scala/scalafix/internal/v1/Args.scala
@@ -335,7 +335,9 @@ case class Args(
   }
 
   def sourceScalaVersion: Option[ScalaVersion] =
-    extractLastScalacOption("-Xsource:").flatMap(ScalaVersion.from(_).toOption)
+    extractLastScalacOption("-Xsource:")
+      .map(_.stripSuffix("-cross"))
+      .flatMap(ScalaVersion.from(_).toOption)
 
   def configureScalaVersions(
       conf: ScalafixConfig
diff --git a/scalafix-rules/src/main/scala/scalafix/internal/rule/OrganizeImports.scala b/scalafix-rules/src/main/scala/scalafix/internal/rule/OrganizeImports.scala
index 6a0aff93f..c67e8758f 100644
--- a/scalafix-rules/src/main/scala/scalafix/internal/rule/OrganizeImports.scala
+++ b/scalafix-rules/src/main/scala/scalafix/internal/rule/OrganizeImports.scala
@@ -893,6 +893,7 @@ object OrganizeImports {
               // the pretty printer is just more permissive with the latest dialect.
               val sourceScalaVersion =
                 extractSuffixForScalacOption("-Xsource:")
+                  .map(_.stripSuffix("-cross"))
                   .flatMap(ScalaVersion.from(_).toOption)
 
               scalaVersion.dialect(sourceScalaVersion)
diff --git a/scalafix-tests/integration/src/test/scala/scalafix/tests/interfaces/ScalafixArgumentsSuite.scala b/scalafix-tests/integration/src/test/scala/scalafix/tests/interfaces/ScalafixArgumentsSuite.scala
index 58860c05f..cc264abc1 100644
--- a/scalafix-tests/integration/src/test/scala/scalafix/tests/interfaces/ScalafixArgumentsSuite.scala
+++ b/scalafix-tests/integration/src/test/scala/scalafix/tests/interfaces/ScalafixArgumentsSuite.scala
@@ -364,7 +364,9 @@ class ScalafixArgumentsSuite extends AnyFunSuite with DiffAssertions {
     assert(fileEvaluation.getErrorMessage.get.contains("SemanticDB not found"))
   }
 
-  test("Scala2 source with Scala3 syntax can only be parsed with -Xsource:3") {
+  test(
+    "Scala2 source with Scala3 syntax can only be parsed with -Xsource:3 or -Xsource:3-cross"
+  ) {
     val cwd = StringFS
       .string2dir(
         s"""|/src/Scala2Source3.scala
@@ -388,6 +390,14 @@ class ScalafixArgumentsSuite extends AnyFunSuite with DiffAssertions {
         .getFileEvaluations
         .head
     assert(withSource3.isSuccessful)
+
+    val withSource3cross =
+      args
+        .withScalacOptions(Collections.singletonList("-Xsource:3-cross"))
+        .evaluate()
+        .getFileEvaluations
+        .head
+    assert(withSource3cross.isSuccessful)
   }
 
   test("Source with Scala3 syntax can be parsed with dialect Scala3") {