From 5ae20349ce9c4cff24ea8a94ca0f20d2ea8c98c1 Mon Sep 17 00:00:00 2001
From: Brice Jaglin <bjaglin@gmail.com>
Date: Sun, 25 Aug 2024 01:13:36 +0200
Subject: [PATCH] core: reduce amount of semanticdb dependencies

---
 build.sbt                                          | 14 ++++++++++----
 project/Dependencies.scala                         |  1 +
 .../scala/meta/internal/symtab/SymbolTable.scala   | 13 +++++++++++++
 3 files changed, 24 insertions(+), 4 deletions(-)
 create mode 100644 scalafix-core/src/main/scala/scala/meta/internal/symtab/SymbolTable.scala

diff --git a/build.sbt b/build.sbt
index 6e91f5226..0a4c75cbb 100644
--- a/build.sbt
+++ b/build.sbt
@@ -74,7 +74,7 @@ lazy val core = projectMatrix
       googleDiff,
       metaconfig,
       scalametaFor3Use2_13,
-      semanticdbScalacCore,
+      semanticdbSharedFor3Use2_13,
       collectionCompat
     )
   )
@@ -95,8 +95,7 @@ lazy val core3 = project
       metaconfig
     ) ++ Seq(
       scalametaFor3Use2_13,
-      // CrossVersion.for3Use2_13 would only lookup a binary version artifact, but this is published with full version
-      semanticdbScalacCore.cross(CrossVersion.constant(scala213))
+      semanticdbSharedFor3Use2_13
     ).map { mod =>
       mod
         .exclude("com.lihaoyi", "sourcecode_2.13")
@@ -149,6 +148,7 @@ lazy val reflect = projectMatrix
     moduleName := "scalafix-reflect",
     isFullCrossVersion,
     libraryDependencies ++= Seq(
+      semanticdbScalacCore,
       "org.scala-lang" % "scala-compiler" % scalaVersion.value,
       "org.scala-lang" % "scala-reflect" % scalaVersion.value
     )
@@ -165,8 +165,14 @@ lazy val reflect3 = project
     isFullCrossVersion,
     noPublishAndNoMima,
     scalaVersion := scala3LTS,
-    libraryDependencies +=
+    libraryDependencies ++= Seq(
+      // CrossVersion.for3Use2_13 would only lookup a binary version artifact, but this is published with full version
+      semanticdbScalacCore
+        .cross(CrossVersion.constant(scala213))
+        .exclude("com.lihaoyi", "sourcecode_2.13")
+        .exclude("org.scala-lang.modules", "scala-collection-compat_2.13"),
       "org.scala-lang" %% "scala3-compiler" % scalaVersion.value
+    )
   )
   .dependsOn(core3)
 
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 8e7d22ca2..edba8827c 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -41,6 +41,7 @@ object Dependencies {
   val scalatest = "org.scalatest" %% "scalatest" % scalatestV
   val munit = "org.scalameta" %% "munit" % munitV
   val semanticdbScalacCore = "org.scalameta" % "semanticdb-scalac-core" % scalametaV cross CrossVersion.full
+  val semanticdbSharedFor3Use2_13 = "org.scalameta" % "semanticdb-shared" % scalametaV cross CrossVersion.for3Use2_13
 
   // scala-steward:off
 
diff --git a/scalafix-core/src/main/scala/scala/meta/internal/symtab/SymbolTable.scala b/scalafix-core/src/main/scala/scala/meta/internal/symtab/SymbolTable.scala
new file mode 100644
index 000000000..a52b6a630
--- /dev/null
+++ b/scalafix-core/src/main/scala/scala/meta/internal/symtab/SymbolTable.scala
@@ -0,0 +1,13 @@
+package scala.meta.internal.symtab
+
+import scala.meta.internal.semanticdb.SymbolInformation
+
+trait SymbolTable {
+
+  /**
+   * Returns the SymbolInformation for the given symbol, or None if the symbol
+   * is missing.
+   */
+  def info(symbol: String): Option[SymbolInformation]
+
+}