Put linker interface in its own project

Author: gzm0

Jenkinsfile

@@ -308,20 +308,22 @@ def Tasks = [
         'set scalaJSStage in testSuite := FastOptStage' \
         ++$scala testSuite/bootstrap:test &&
     sbt ++$scala irJS/mimaReportBinaryIssues \
-        loggingJS/mimaReportBinaryIssues linkerJS/mimaReportBinaryIssues
+        loggingJS/mimaReportBinaryIssues \
+        linkerInterfaceJS/mimaReportBinaryIssues linkerJS/mimaReportBinaryIssues
   ''',
 
   "tools": '''
     setJavaVersion $java
     npm install &&
-    sbt ++$scala ir/test logging/compile linker/compile \
-        jsEnvs/test nodeJSEnv/test testAdapter/test \
-        ir/mimaReportBinaryIssues \
-        logging/mimaReportBinaryIssues linker/mimaReportBinaryIssues \
+    sbt ++$scala ir/test logging/compile linkerInterface/compile \
+        linker/compile jsEnvs/test nodeJSEnv/test testAdapter/test \
+        ir/mimaReportBinaryIssues logging/mimaReportBinaryIssues \
+        linkerInterface/mimaReportBinaryIssues linker/mimaReportBinaryIssues \
         jsEnvs/mimaReportBinaryIssues jsEnvsTestKit/mimaReportBinaryIssues \
         nodeJSEnv/mimaReportBinaryIssues \
         testAdapter/mimaReportBinaryIssues &&
     sbt ++$scala ir/compile:doc logging/compile:doc \
+        linkerInterface/compile:doc \
         linker/compile:doc jsEnvs/compile:doc \
         jsEnvsTestKit/compile:doc nodeJSEnv/compile:doc \
         testAdapter/compile:doc
@@ -330,11 +332,11 @@ def Tasks = [
   "tools-sbtplugin": '''
     setJavaVersion $java
     npm install &&
-    sbt ++$scala ir/test logging/compile linker/compile \
-        jsEnvs/test nodeJSEnv/test testAdapter/test \
+    sbt ++$scala ir/test logging/compile linkerInterface/compile \
+        linker/compile jsEnvs/test nodeJSEnv/test testAdapter/test \
         sbtPlugin/package \
-        ir/mimaReportBinaryIssues \
-        logging/mimaReportBinaryIssues linker/mimaReportBinaryIssues \
+        ir/mimaReportBinaryIssues logging/mimaReportBinaryIssues \
+        linkerInterface/mimaReportBinaryIssues linker/mimaReportBinaryIssues \
         jsEnvs/mimaReportBinaryIssues jsEnvsTestKit/mimaReportBinaryIssues \
         nodeJSEnv/mimaReportBinaryIssues \
         testAdapter/mimaReportBinaryIssues \
@@ -343,6 +345,8 @@ def Tasks = [
         ir/scalastyle compiler/scalastyle \
         compiler/test:scalastyle \
         logging/scalastyle logging/test:scalastyle \
+        linkerInterface/scalastyle \
+        linkerInterface/scalastyle \
         linker/scalastyle linker/test:scalastyle \
         jsEnvs/scalastyle jsEnvsTestKit/scalastyle nodeJSEnv/scalastyle \
         jsEnvs/test:scalastyle nodeJSEnv/test:scalastyle testAdapter/scalastyle \
@@ -356,6 +360,7 @@ def Tasks = [
         jUnitTestOutputsJVM/scalastyle jUnitTestOutputsJVM/test:scalastyle \
         jUnitTestOutputsJS/scalastyle jUnitTestOutputsJS/test:scalastyle &&
     sbt ++$scala ir/compile:doc logging/compile:doc \
+        linkerInterface/compile:doc \
         linker/compile:doc jsEnvs/compile:doc \
         jsEnvsTestKit/compile:doc nodeJSEnv/compile:doc \
         testAdapter/compile:doc \
@@ -378,6 +383,7 @@ def Tasks = [
                   jUnitPlugin/publishLocal jUnitRuntime/publishLocal &&
     sbt ++$toolsscala \
         ir/publishLocal logging/publishLocal \
+        linkerInterface/publishLocal \
         linker/publishLocal jsEnvs/publishLocal \
         nodeJSEnv/publishLocal testAdapter/publishLocal \
         sbtPlugin/publishLocal &&

build.sbt

@@ -6,6 +6,8 @@ val irJS = Build.irProjectJS
 val compiler = Build.compiler
 val logging = Build.logging
 val loggingJS = Build.loggingJS
+val linkerInterface = Build.linkerInterface
+val linkerInterfaceJS = Build.linkerInterfaceJS
 val linker = Build.linker
 val linkerJS = Build.linkerJS
 val jsEnvs = Build.jsEnvs

linker/js/src/main/scala/org/scalajs/linker/interface/StandardConfigPlatformExtensions.scala renamed to linker-interface/js/src/main/scala/org/scalajs/linker/interface/StandardConfigPlatformExtensions.scala

@@ -13,6 +13,9 @@ object BinaryIncompatibilities {
   val Linker = Seq(
   )
 
+  val LinkerInterface = Seq(
+  )
+
   val JSEnvs = Seq(
   )
 

linker/jvm/src/main/scala/org/scalajs/linker/interface/StandardConfigPlatformExtensions.scala renamed to linker-interface/jvm/src/main/scala/org/scalajs/linker/interface/StandardConfigPlatformExtensions.scala

@@ -658,6 +658,34 @@ object Build {
       library
   )
 
+  val commonLinkerInterfaceSettings = Def.settings(
+      commonSettings,
+      publishSettings,
+      fatalWarningsSettings,
+      name := "Scala.js linker interface",
+
+      unmanagedSourceDirectories in Compile +=
+        baseDirectory.value.getParentFile / "shared/src/main/scala",
+      unmanagedSourceDirectories in Test +=
+        baseDirectory.value.getParentFile / "shared/src/test/scala",
+
+      previousArtifactSetting,
+      mimaBinaryIssueFilters ++= BinaryIncompatibilities.LinkerInterface,
+      exportJars := true, // required so ScalaDoc linking works
+
+      testOptions += Tests.Argument(TestFrameworks.JUnit, "-a")
+  )
+
+  lazy val linkerInterface: Project = (project in file("linker-interface/jvm")).settings(
+      commonLinkerInterfaceSettings,
+  ).dependsOn(irProject, logging)
+
+  lazy val linkerInterfaceJS: Project = (project in file("linker-interface/js")).settings(
+      commonLinkerInterfaceSettings,
+  ).withScalaJSCompiler.dependsOn(
+      library, irProjectJS, loggingJS,
+  )
+
   val commonLinkerSettings = Def.settings(
       commonSettings,
       publishSettings,
@@ -698,7 +726,7 @@ object Build {
           parallelCollectionsDependencies(scalaVersion.value)
       ),
       fork in Test := true
-  ).dependsOn(irProject, logging, jUnitAsyncJVM % "test")
+  ).dependsOn(linkerInterface, irProject, logging, jUnitAsyncJVM % "test")
 
   lazy val linkerJS: Project = (project in file("linker/js")).enablePlugins(
       MyScalaJSPlugin
@@ -707,7 +735,7 @@ object Build {
       crossVersion := ScalaJSCrossVersion.binary,
       scalaJSLinkerConfig in Test ~= (_.withModuleKind(ModuleKind.CommonJSModule))
   ).withScalaJSCompiler.withScalaJSJUnitPlugin.dependsOn(
-      library, irProjectJS, loggingJS, jUnitRuntime % "test", testBridge % "test", jUnitAsyncJS % "test"
+      linkerInterfaceJS, library, irProjectJS, loggingJS, jUnitRuntime % "test", testBridge % "test", jUnitAsyncJS % "test"
   )
 
   lazy val jsEnvs: Project = (project in file("js-envs")).settings(

linker/shared/src/main/scala/org/scalajs/linker/interface/CheckedBehavior.scala renamed to linker-interface/shared/src/main/scala/org/scalajs/linker/interface/CheckedBehavior.scala

@@ -18,6 +18,8 @@ unmanagedSourceDirectories in Compile ++= {
     root / "ir/src/main/scala",
     root / "logging/shared/src/main/scala",
     root / "logging/jvm/src/main/scala",
+    root / "linker-interface/shared/src/main/scala",
+    root / "linker-interface/jvm/src/main/scala",
     root / "linker/shared/src/main/scala",
     root / "linker/jvm/src/main/scala",
     root / "js-envs/src/main/scala",