chore: add scala-library-cc project

Author: hamzaremmal

.github/workflows/stdlib.yaml

@@ -219,6 +219,24 @@ jobs:
  - name: Compile `scala3-tasty-inspector`
  run: ./project/scripts/sbt scala3-tasty-inspector-new/compile
 
+ scala-library-cc:
+ runs-on: ubuntu-latest
+ needs : [scala3-compiler-nonbootstrapped, scala3-sbt-bridge-nonbootstrapped, scala-library-nonbootstrapped, scala3-library-nonbootstrapped]
+ steps:
+ - name: Git Checkout
+ uses: actions/checkout@v4
+
+ - name: Set up JDK 17
+ uses: actions/setup-java@v4
+ with:
+ distribution: 'temurin'
+ java-version: 17
+ cache: 'sbt'
+
+ - uses: sbt/setup-sbt@v1
+ - name: Compile `scala-library-cc`
+ run: ./project/scripts/sbt scala-library-cc/compile
+ 
  #################################################################################################
  ########################################### TEST JOBS ###########################################
  #################################################################################################

build.sbt

@@ -13,6 +13,7 @@ val `scala-library-bootstrapped` = Build.`scala-library-bootstrapped`
 val `scala3-library-bootstrapped-new` = Build.`scala3-library-bootstrapped-new`
 val `scala3-library` = Build.`scala3-library`
 val `scala3-library-bootstrapped` = Build.`scala3-library-bootstrapped`
+val `scala-library-cc` = Build.`scala-library-cc`
 val `scala3-library-bootstrappedJS` = Build.`scala3-library-bootstrappedJS`
 val `scala3-sbt-bridge` = Build.`scala3-sbt-bridge`
 val `scala3-sbt-bridge-bootstrapped` = Build.`scala3-sbt-bridge-bootstrapped`

project/Build.scala

@@ -1647,6 +1647,73 @@ object Build {
  },
  )
 
+ /* Configuration of the org.scala-lang:scala-library-cc:*.**.**-bootstrapped */
+ lazy val `scala-library-cc` = project.in(file("library"))
+ .enablePlugins(ScalaLibraryPlugin)
+ .settings(
+ name := "scala-library-cc",
+ moduleName := "scala-library-cc",
+ version := dottyVersion,
+ versionScheme := Some("semver-spec"),
+ // sbt defaults to scala 2.12.x and metals will report issues as it doesn't consider the project a scala 3 project
+ // (not the actual version we use to compile the project)
+ scalaVersion := referenceVersion,
+ crossPaths := true,
+ // Add the source directories for the stdlib (non-boostrapped)
+ Compile / unmanagedSourceDirectories := Seq(baseDirectory.value / "src"),
+ Compile / unmanagedSourceDirectories += baseDirectory.value / "src-bootstrapped",
+ // NOTE: The only difference here is that we drop `-Werror` and semanticDB for now
+ Compile / scalacOptions := Seq("-deprecation", "-feature", "-unchecked", "-encoding", "UTF8", "-language:implicitConversions"),
+ Compile / scalacOptions += "-Yno-stdlib-patches",
+ Compile / scalacOptions ++= Seq(
+ // Needed so that the library sources are visible when `dotty.tools.dotc.core.Definitions#init` is called
+ "-sourcepath", (Compile / sourceDirectories).value.map(_.getCanonicalPath).distinct.mkString(File.pathSeparator),
+ ),
+ // Make sure that the produced artifacts have the minimum JVM version in the bytecode
+ Compile / javacOptions ++= Seq("--target", Versions.minimumJVMVersion),
+ Compile / scalacOptions ++= Seq("--java-output-version", Versions.minimumJVMVersion),
+ // Packaging configuration of the stdlib
+ Compile / packageBin / publishArtifact := true,
+ Compile / packageDoc / publishArtifact := false,
+ Compile / packageSrc / publishArtifact := true,
+ // Only publish compilation artifacts, no test artifacts
+ Test / publishArtifact := false,
+ // Do not allow to publish this project for now
+ publish / skip := false,
+ // Project specific target folder. sbt doesn't like having two projects using the same target folder
+ target := target.value / "scala-library-cc",
+ // we need to have the `scala-library` artifact in the classpath for `ScalaLibraryPlugin` to work
+ // this was the only way to not get the artifact evicted by sbt. Even a custom configuration didn't work
+ // NOTE: true is the default value, just making things clearer here
+ managedScalaInstance := true,
+ // Configure the nonbootstrapped compiler
+ scalaInstance := {
+ val externalCompilerDeps = (`scala3-compiler-nonbootstrapped` / Compile / externalDependencyClasspath).value.map(_.data).toSet
+
+ // IMPORTANT: We need to use actual jars to form the ScalaInstance and not
+ // just directories containing classfiles because sbt maintains a cache of
+ // compiler instances. This cache is invalidated based on timestamps
+ // however this is only implemented on jars, directories are never
+ // invalidated.
+ val tastyCore = (`tasty-core-nonbootstrapped` / Compile / packageBin).value
+ val scalaLibrary = (`scala-library-nonbootstrapped` / Compile / packageBin).value
+ val scala3Interfaces = (`scala3-interfaces` / Compile / packageBin).value
+ val scala3Compiler = (`scala3-compiler-nonbootstrapped` / Compile / packageBin).value
+
+ Defaults.makeScalaInstance(
+ dottyNonBootstrappedVersion,
+ libraryJars = Array(scalaLibrary),
+ allCompilerJars = Seq(tastyCore, scala3Interfaces, scala3Compiler) ++ externalCompilerDeps,
+ allDocJars = Seq.empty,
+ state.value,
+ scalaInstanceTopLoader.value
+ )
+ },
+ scalaCompilerBridgeBinaryJar := {
+ Some((`scala3-sbt-bridge-nonbootstrapped` / Compile / packageBin).value)
+ },
+ )
+
  // ==============================================================================================
  // =================================== SCALA STANDARD LIBRARY ===================================
  // ==============================================================================================