From 6ea7d123d3ad0ab2b2b090b380c67fc216fe2ce8 Mon Sep 17 00:00:00 2001
From: Lex Spoon <lex@lexspoon.org>
Date: Thu, 24 May 2007 20:02:21 +0000
Subject: In the interpreter, compile the source code of ...

In the interpreter, compile the source code of InterpreterSettings, so
that it is available even if scala-compiler is not on the interpreter's
classpath.
---
 src/compiler/scala/tools/nsc/InterpreterLoop.scala |  9 +---
 .../scala/tools/nsc/InterpreterSettings.scala      | 51 +++++++++++++++++++++-
 2 files changed, 51 insertions(+), 9 deletions(-)

diff --git a/src/compiler/scala/tools/nsc/InterpreterLoop.scala b/src/compiler/scala/tools/nsc/InterpreterLoop.scala
index b50633d043..9b1f2f20ac 100644
--- a/src/compiler/scala/tools/nsc/InterpreterLoop.scala
+++ b/src/compiler/scala/tools/nsc/InterpreterLoop.scala
@@ -11,7 +11,6 @@ import java.lang.ClassLoader
 import java.io.{BufferedReader, InputStreamReader, File, FileReader, PrintWriter}
 import java.io.IOException
 
-import scala.tools.nsc.reporters.{Reporter, ConsoleReporter}
 import scala.tools.nsc.util.Position
 import nsc.{InterpreterResults=>IR}
 
@@ -75,13 +74,9 @@ class InterpreterLoop(in0: BufferedReader, out: PrintWriter) {
 
   /** Bind the settings so that evaluated code can modiy them */
   def bindSettings() {
-// TODO: The isettings should not be bound like this,
-//       because the interpreter should not be forced to
-//       use a compatible classloader.  Instead, the
-//       settings object should be compiled inside the
-//       interpreter, and InterpreterLoop should grab the
-//       settings via reflection.
     interpreter.beQuietDuring {
+      interpreter.compileString(InterpreterSettings.sourceCodeForClass)
+
       interpreter.bind(
         "settings",
         "scala.tools.nsc.InterpreterSettings",
diff --git a/src/compiler/scala/tools/nsc/InterpreterSettings.scala b/src/compiler/scala/tools/nsc/InterpreterSettings.scala
index 7e5d0a5cc4..be932b0833 100644
--- a/src/compiler/scala/tools/nsc/InterpreterSettings.scala
+++ b/src/compiler/scala/tools/nsc/InterpreterSettings.scala
@@ -1,9 +1,13 @@
 package scala.tools.nsc
 
-/** Settings for the interpreter */
+/** Settings for the interpreter
+ *
+ * @version 1.0
+ * @author Lex Spoon, 2007/3/24
+ **/
 class InterpreterSettings {
   /** A list of paths where :load should look */
-  var loadPath = List(".", "/home/lex/tmp")  // XXX remove tmp, just for testing
+  var loadPath = List(".")
 
   /** The maximum length of toString to use when printing the result
    *  of an evaluation.  0 means no maximum.  If a printout requires
@@ -18,3 +22,46 @@ class InterpreterSettings {
     "  maxPrintString = " + maxPrintString + "\n" +
     "}"
 }
+
+
+
+/* Utilities for the InterpreterSettings class
+ *
+ * @version 1.0
+ * @author Lex Spoon, 2007/5/24
+ */
+object InterpreterSettings {
+  /** Source code for the InterpreterSettings class.  This is
+   *  used so that the interpreter is sure to have the code
+   *  available.
+   */
+  val sourceCodeForClass =
+"""
+package scala.tools.nsc
+
+/** Settings for the interpreter
+ *
+ * @version 1.0
+ * @author Lex Spoon, 2007/3/24
+ **/
+class InterpreterSettings {
+  /** A list of paths where :load should look */
+  var loadPath = List(".")
+
+  /** The maximum length of toString to use when printing the result
+   *  of an evaluation.  0 means no maximum.  If a printout requires
+   *  more than this number of characters, then the printout is
+   *  truncated.
+   */
+  var maxPrintString = 390
+
+  override def toString =
+    "InterpreterSettings {\n" +
+//    "  loadPath = " + loadPath + "\n" +
+    "  maxPrintString = " + maxPrintString + "\n" +
+    "}"
+}
+
+"""
+
+}
-- 
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