From a5d47fb693d9b88ea9ed414762f16e027be64ada Mon Sep 17 00:00:00 2001
From: Hubert Plociniczak <hubert.plociniczak@epfl.ch>
Date: Wed, 22 Sep 2010 14:00:35 +0000
Subject: Closes #1591.

---
 src/library/scala/reflect/generic/StdNames.scala  |  4 ++++
 src/library/scala/reflect/generic/Symbols.scala   |  5 +++++
 src/library/scala/reflect/generic/UnPickler.scala | 18 +++++++++++++++++-
 3 files changed, 26 insertions(+), 1 deletion(-)

(limited to 'src/library')

diff --git a/src/library/scala/reflect/generic/StdNames.scala b/src/library/scala/reflect/generic/StdNames.scala
index 7a3b9169d8..03cee8c909 100755
--- a/src/library/scala/reflect/generic/StdNames.scala
+++ b/src/library/scala/reflect/generic/StdNames.scala
@@ -17,10 +17,14 @@ trait StdNames { self: Universe =>
     val ROOT               = newTermName("<root>")
     val ROOTPKG            = newTermName("_root_")
     val EMPTY              = newTermName("")
+    val MODULE_SUFFIX      = newTermName("$module")
 
     /** The expanded name of `name' relative to this class `base` with given `separator`
      */
     def expandedName(name: Name, base: Symbol, separator: String = EXPAND_SEPARATOR_STRING): Name =
       newTermName(base.fullName('$') + separator + name)
+
+    def moduleVarName(name: Name): Name =
+      newTermName(name.toString() + MODULE_SUFFIX)
   }
 }
diff --git a/src/library/scala/reflect/generic/Symbols.scala b/src/library/scala/reflect/generic/Symbols.scala
index f1226c7e19..a1c9a0c18d 100755
--- a/src/library/scala/reflect/generic/Symbols.scala
+++ b/src/library/scala/reflect/generic/Symbols.scala
@@ -107,6 +107,11 @@ trait Symbols { self: Universe =>
      */
     def moduleClass: Symbol
 
+    /**
+     *  If symbol is a lazy val, it's lazy accessor
+     */
+    def lazyAccessor: Symbol
+
 // flags and kind tests
 
     def isTerm         = false  // to be overridden
diff --git a/src/library/scala/reflect/generic/UnPickler.scala b/src/library/scala/reflect/generic/UnPickler.scala
index 54ac1acc3d..b01ff6a567 100755
--- a/src/library/scala/reflect/generic/UnPickler.scala
+++ b/src/library/scala/reflect/generic/UnPickler.scala
@@ -191,7 +191,23 @@ abstract class UnPickler {
           // right member => return NoSymbol. This can only happen when unpickling a tree.
           // the "case Apply" in readTree() takes care of selecting the correct alternative
           //  after parsing the arguments.
-          if (sym == NoSymbol && !owner.isOverloaded) errorMissingRequirement(name, owner)
+          if (sym == NoSymbol && !owner.isOverloaded) {
+            // Possibly a nested object symbol
+            tag match {
+              case EXTMODCLASSref =>
+                val moduleVar = owner.info.decl(nme.moduleVarName(name))
+                if (moduleVar.hasFlag(LAZY)) {
+                  val lazyAcc = moduleVar.lazyAccessor
+                  // TODO: Necessary check?
+                  if (lazyAcc != NoSymbol)
+                    sym = lazyAcc.lazyAccessor
+                  }
+                case _ =>
+            }
+
+            if (sym == NoSymbol)
+              errorMissingRequirement(name, owner)
+          }
 
         case NONEsym =>
           sym = NoSymbol
-- 
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