Bash completion! The file is automatically crea...

Bash completion! The file is automatically created as part of the build
process and placed in $pack/etc.

% scala -Xprint
-Xprint-icode  -Xprint-pos    -Xprint-types  -Xprint:

% scala -Xprint:
all             flatten         mixin           tailcalls
cleanup         icode           namer           terminal
closelim        inliner         packageobjects  typer
constructors    jvm             parser          uncurry
dce             lambdalift      pickler
erasure         lazyvals        refchecks
explicitouter   liftcode        superaccessors

% scala -g:
line         none         notailcalls  source       vars

% scala -Ystruct-dispatch:
invoke-dynamic  mono-cache      no-cache        poly-cache

Review by community.

1 files changed, 7 insertions, 4 deletions

diff --git a/src/compiler/scala/tools/nsc/Global.scala b/src/compiler/scala/tools/nsc/Global.scala
index 0590797e53..4e14ec6fb1 100644
--- a/src/compiler/scala/tools/nsc/Global.scala
+++ b/src/compiler/scala/tools/nsc/Global.scala
@@ -549,13 +549,16 @@ class Global(var settings: Settings, var reporter: Reporter) extends SymbolTable
   /* The set of phase objects that is the basis for the compiler phase chain */
   protected val phasesSet : HashSet[SubComponent] = new HashSet[SubComponent]
 
-  /** A description of the phases that will run */
-  def phaseDescriptions: String = {
+  /** The names of the phases. */
+  lazy val phaseNames = {
     new Run // force some initialization
-
-    phaseDescriptors map (_.phaseName) mkString "\n" // todo: + " - " + phase.description
+    phaseDescriptors map (_.phaseName)
   }
 
+  /** A description of the phases that will run */
+  def phaseDescriptions: String =
+    phaseNames mkString "\n" // todo: + " - " + phase.description
+
   // ----------- Runs ---------------------------------------
 
   private var curRun: Run = null