Pass Parser and CompilerBuilder instances around in repl

amm/repl/src/main/scala/ammonite/repl/ApiImpls.scala

@@ -138,11 +138,12 @@ object ClipboardImpl extends Clipboard {
 }
 
 trait FrontEndAPIImpl extends FrontEndAPI {
+  protected def parser: ammonite.compiler.iface.Parser
   def apply(name: String): FrontEnd =
     name.toLowerCase(Locale.ROOT) match {
-      case "ammonite" => AmmoniteFrontEnd(ammonite.compiler.Parsers)
-      case "windows" => new FrontEnds.JLineWindows(ammonite.compiler.Parsers)
-      case "unix" => new FrontEnds.JLineUnix(ammonite.compiler.Parsers)
+      case "ammonite" => AmmoniteFrontEnd(parser)
+      case "windows" => new FrontEnds.JLineWindows(parser)
+      case "unix" => new FrontEnds.JLineUnix(parser)
       case _ => throw new NoSuchElementException(s"Front-end $name")
     }
 }

amm/repl/src/main/scala/ammonite/repl/Repl.scala

@@ -7,8 +7,7 @@ import ammonite.runtime._
 import ammonite.terminal.Filter
 import ammonite.util.Util.{newLine, normalizeNewlines}
 import ammonite.util._
-import ammonite.compiler.Parsers
-import ammonite.compiler.iface.CodeWrapper
+import ammonite.compiler.iface.{CodeWrapper, CompilerBuilder, Parser}
 import ammonite.interp.Interpreter
 import coursierapi.Dependency
 
@@ -29,6 +28,8 @@ class Repl(input: InputStream,
            scriptCodeWrapper: CodeWrapper,
            alreadyLoadedDependencies: Seq[Dependency],
            importHooks: Map[Seq[String], ImportHook],
+           compilerBuilder: CompilerBuilder,
+           parser: Parser,
            initialClassLoader: ClassLoader =
              classOf[ammonite.repl.api.ReplAPI].getClassLoader,
            classPathWhitelist: Set[Seq[String]]) { repl =>
@@ -37,9 +38,9 @@ class Repl(input: InputStream,
 
   val frontEnd = Ref[FrontEnd](
     if (scala.util.Properties.isWin)
-      new ammonite.repl.FrontEnds.JLineWindows(ammonite.compiler.Parsers)
+      new ammonite.repl.FrontEnds.JLineWindows(parser)
     else
-      AmmoniteFrontEnd(ammonite.compiler.Parsers, Filter.empty)
+      AmmoniteFrontEnd(parser, Filter.empty)
   )
 
   var lastException: Throwable = null
@@ -73,8 +74,8 @@ class Repl(input: InputStream,
   def usedEarlierDefinitions = frames().head.usedEarlierDefinitions
 
   val interp = new Interpreter(
-    ammonite.compiler.CompilerBuilder,
-    ammonite.compiler.Parsers,
+    compilerBuilder,
+    parser,
     printer,
     storage,
     wd,
@@ -134,7 +135,9 @@ class Repl(input: InputStream,
     (
       "ammonite.repl.api.FrontEndBridge",
       "frontEnd",
-      new FrontEndAPIImpl {}
+      new FrontEndAPIImpl {
+        def parser = repl.parser
+      }
     )
   )
 
@@ -153,7 +156,7 @@ class Repl(input: InputStream,
     // running the user code directly. Could be made longer to better warm more
     // code paths, but then the fixed overhead gets larger so not really worth it
     val code = s"""val array = Seq.tabulate(10)(_*2).toArray.max"""
-    val stmts = Parsers.split(code).get.toOption.get
+    val stmts = parser.split(code).get.toOption.get
     interp.processLine(code, stmts, 9999999, silent = true, () => () /*donothing*/)
   }
 

amm/repl/src/test/scala/ammonite/TestRepl.scala

@@ -22,7 +22,7 @@ import ammonite.runtime.ImportHook
  * A test REPL which does not read from stdin or stdout files, but instead lets
  * you feed in lines or sessions programmatically and have it execute them.
  */
-class TestRepl {
+class TestRepl { self =>
   var allOutput = ""
   def predef: (String, Option[os.Path]) = ("", None)
   def codeWrapper: CodeWrapper = DefaultCodeWrapper
@@ -63,11 +63,13 @@ class TestRepl {
   )
   val customPredefs = Seq()
 
+  val parser = ammonite.compiler.Parsers
+
   var currentLine = 0
   val interp = try {
     new Interpreter(
       ammonite.compiler.CompilerBuilder,
-      ammonite.compiler.Parsers,
+      parser,
       printer0,
       storage = storage,
       wd = os.pwd,
@@ -162,7 +164,9 @@ class TestRepl {
     (
       "ammonite.repl.api.FrontEndBridge",
       "frontEnd",
-      new FrontEndAPIImpl {}
+      new FrontEndAPIImpl {
+        def parser = self.parser
+      }
     )
   )
 

amm/src/main/scala/ammonite/Main.scala

@@ -5,7 +5,7 @@ import java.net.URLClassLoader
 import java.nio.file.NoSuchFileException
 
 import ammonite.compiler.{CodeClassWrapper, DefaultCodeWrapper}
-import ammonite.compiler.iface.CodeWrapper
+import ammonite.compiler.iface.{CodeWrapper, CompilerBuilder, Parser}
 import ammonite.interp.{Watchable, Interpreter, PredefInitialization}
 import ammonite.interp.script.AmmoniteBuildServer
 import ammonite.runtime.{Frame, Storage}
@@ -76,6 +76,9 @@ case class Main(predefCode: String = "",
                 alreadyLoadedDependencies: Seq[Dependency] =
                   Defaults.alreadyLoadedDependencies(),
                 importHooks: Map[Seq[String], ImportHook] = ImportHook.defaults,
+                compilerBuilder: CompilerBuilder = ammonite.compiler.CompilerBuilder,
+                // by-name, so that fastparse isn't loaded when we don't need it
+                parser: () => Parser = () => ammonite.compiler.Parsers,
                 classPathWhitelist: Set[Seq[String]] = Set.empty){
 
   def loadedPredefFile = predefFile match{
@@ -137,6 +140,8 @@ case class Main(predefCode: String = "",
         scriptCodeWrapper = scriptCodeWrapper,
         alreadyLoadedDependencies = alreadyLoadedDependencies,
         importHooks = importHooks,
+        compilerBuilder = compilerBuilder,
+        parser = parser(),
         initialClassLoader = initialClassLoader,
         classPathWhitelist = classPathWhitelist
       )
@@ -161,9 +166,10 @@ case class Main(predefCode: String = "",
       val customPredefs = predefFileInfoOpt.toSeq ++ Seq(
         PredefInfo(Name("CodePredef"), predefCode, false, None)
       )
+      lazy val parser0 = parser()
       val interp = new Interpreter(
         ammonite.compiler.CompilerBuilder,
-        ammonite.compiler.Parsers,
+        parser0,
         printer,
         storageBackend,
         wd,
@@ -182,7 +188,9 @@ case class Main(predefCode: String = "",
         (
           "ammonite.repl.api.FrontEndBridge",
           "frontEnd",
-          new FrontEndAPIImpl {}
+          new FrontEndAPIImpl {
+            def parser = parser0
+          }
         )
       )
       interp.initializePredef(Seq(), customPredefs, bridges, augmentedImports) match{
@@ -454,6 +462,7 @@ class MainRunner(cliConfig: Config,
       new Storage.Folder(cliConfig.core.home, isRepl)
     }
 
+    lazy val parser = ammonite.compiler.Parsers
     val codeWrapper =
       if (cliConfig.repl.classBased.value) CodeClassWrapper
       else DefaultCodeWrapper
@@ -473,6 +482,7 @@ class MainRunner(cliConfig: Config,
       colors = colors,
       replCodeWrapper = codeWrapper,
       scriptCodeWrapper = codeWrapper,
+      parser = () => parser,
       alreadyLoadedDependencies =
         Defaults.alreadyLoadedDependencies(),
       classPathWhitelist = ammonite.repl.Repl.getClassPathWhitelist(cliConfig.core.thin.value)

build.sc

@@ -283,7 +283,7 @@ object amm extends Cross[MainModule](fullCrossScalaVersions:_*){
       ops(), amm.util(),
       amm.runtime(), amm.interp(),
       terminal(),
-      amm.compiler()
+      amm.compiler.interface()
     )
     def ivyDeps = Agg(
       ivy"org.jline:jline-terminal:3.14.1",
@@ -296,6 +296,7 @@ object amm extends Cross[MainModule](fullCrossScalaVersions:_*){
       def crossScalaVersion = ReplModule.this.crossScalaVersion
       def scalaVersion = ReplModule.this.crossScalaVersion
       def dependencyResourceFileName = "amm-test-dependencies.txt"
+      def moduleDeps = super.moduleDeps ++ Seq(amm.compiler())
 
       def thinWhitelist = T{
         generateApiWhitelist(
@@ -316,7 +317,7 @@ object amm extends Cross[MainModule](fullCrossScalaVersions:_*){
         ReplModule.this.externalSources() ++
         resolveDeps(ivyDeps, sources = true)()).distinct
       }
-      def ivyDeps = super.ivyDeps() ++ Agg(
+      def ivyDeps = super.ivyDeps() ++ amm.compiler().ivyDeps() ++ Agg(
         ivy"org.scalaz::scalaz-core:7.2.27"
       )
     }
@@ -337,7 +338,8 @@ class MainModule(val crossScalaVersion: String)
     amm.util(), amm.runtime(),
     amm.interp.api(),
     amm.repl.api(),
-    amm.interp(), amm.repl()
+    amm.interp(), amm.repl(),
+    amm.compiler()
   )
 
   def runClasspath =