Skeleton :require

Author: aherlihy

compiler/src/dotty/tools/repl/ParseResult.scala

@@ -52,6 +52,13 @@ object Load {
   val command: String = ":load"
 }
 
+/** `:require <path>` adds a jar to the classpath 
+ */
+case class Require(path: String) extends Command
+object Require {
+  val command: String = ":require"
+}
+
 /** To find out the type of an expression you may simply do:
  *
  * ```
@@ -139,6 +146,7 @@ object ParseResult {
     Reset.command -> (arg  => Reset(arg)),
     Imports.command -> (_  => Imports),
     Load.command -> (arg => Load(arg)),
+    Require.command -> (arg => Require(arg)),
     TypeOf.command -> (arg => TypeOf(arg)),
     DocOf.command -> (arg => DocOf(arg)),
     Settings.command -> (arg => Settings(arg)),

compiler/src/dotty/tools/repl/ReplDriver.scala

@@ -510,6 +510,18 @@ class ReplDriver(settings: Array[String],
         state
       }
 
+    case Require(path) =>
+      val file = new JFile(path)
+      if (file.exists) {
+//        val contents = Using(scala.io.Source.fromFile(file, StandardCharsets.UTF_8.name))(_.mkString).get
+//        run(contents)
+        ???
+      }
+      else {
+        out.println(s"""Couldn't find file "${file.getCanonicalPath}"""")
+        state
+      }
+
     case TypeOf(expr) =>
       expr match {
         case "" => out.println(s":type <expression>")

compiler/test/dotty/tools/repl/TabcompleteTests.scala

@@ -214,6 +214,7 @@ class TabcompleteTests extends ReplTest {
         ":help",
         ":imports",
         ":load",
+        ":require",
         ":quit",
         ":reset",
         ":settings",