Narrow the node on which the patch is performed

Author: julienrf

2.13/input/src/main/scala/fix/Collectionstrawman_v0_Stream.scala

@@ -4,7 +4,8 @@ rule = "scala:fix.Collectionstrawman_v0"
 package fix
 
 object Collectionstrawman_v0_Stream {
-  Stream(1, 2, 3)
+  val s = Stream(1, 2, 3)
+  s.append(List(4, 5, 6))
   1 #:: 2 #:: 3 #:: Stream.Empty
   val isEmpty: Stream[_] => Boolean = {
     case Stream.Empty => true

2.13/output/src/main/scala/fix/Collectionstrawman_v0_Stream.scala

@@ -1,7 +1,8 @@
 package fix
 
 object Collectionstrawman_v0_Stream {
-  LazyList(1, 2, 3)
+  val s = LazyList(1, 2, 3)
+  s.lazyAppendAll(List(4, 5, 6))
   1 #:: 2 #:: 3 #:: LazyList.Empty
   val isEmpty: LazyList[_] => Boolean = {
     case LazyList.Empty => true

2.13/rules/src/main/scala/fix/Collectionstrawman_v0.scala

@@ -96,10 +96,21 @@ case class Collectionstrawman_v0(index: SemanticdbIndex)
         ctx.replaceTree(t, q"$buffer ++= $collection".syntax)
     }.asPatch
 
+  val streamAppend = SymbolMatcher.normalized(
+    Symbol("_root_.scala.collection.immutable.Stream.append.")
+  )
+
+  def replaceStreamAppend(ctx: RuleCtx): Patch =
+    ctx.tree.collect {
+      case streamAppend(t: Name) =>
+        ctx.replaceTree(t, "lazyAppendAll")
+    }.asPatch
+
   override def fix(ctx: RuleCtx): Patch = {
     replaceToList(ctx) +
       replaceSymbols(ctx) +
       replaceTupleZipped(ctx) +
-      replaceCopyToBuffer(ctx)
+      replaceCopyToBuffer(ctx) +
+      replaceStreamAppend(ctx)
   }
 }

build.sbt

@@ -58,8 +58,8 @@ lazy val `input-2_13` = project.in(file("2.13") / "input")
 
 lazy val `output-2_13` = project.in(file("2.13") / "output")
   .settings(
-    resolvers += "scala-pr" at "https://scala-ci.typesafe.com/artifactory/scala-pr-validation-snapshots/",
-    scalaVersion := "2.13.0-pre-47ffa9c-SNAPSHOT"
+    resolvers += "scala-pr" at "https://scala-ci.typesafe.com/artifactory/scala-integration/",
+    scalaVersion := "2.13.0-pre-c577876"
   )
 
 lazy val `tests-2_13` = project.in(file("2.13") / "tests")