Partial redesign of incremental compiler invalidation.

We now do the right thing when packages are either newly created or deleted. Previously there was a problem when a new package was created inside a system package (and, unofrtunately, root is a system package). That's fixed now. We also approximate more tightly now when packages are newly created (iei the newly created symbol gets rescanned, instead of its owner).

Incremental class invalidation: dealing with empty package.

The compiler can now also invalidate the empty package. Previously, no invalidation was done because empty was identified with root, which is considered a system package.

(1) Fixed NPE when creating a new toplevel package in invalidation. (2) generalized interface to deal with multiple entries at a time.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/compiler/scala/tools/nsc/backend/Platform.scala b/src/compiler/scala/tools/nsc/backend/Platform.scala
index f97d3e3d56..f770713093 100644
--- a/src/compiler/scala/tools/nsc/backend/Platform.scala
+++ b/src/compiler/scala/tools/nsc/backend/Platform.scala
@@ -23,9 +23,9 @@ trait Platform {
 
   /** The root symbol loader. */
   def rootLoader: LazyType
-  
-  /** Update classpath with a substituted subentry */
-  def updateClassPath(oldEntry: ClassPath[BinaryRepr], newEntry: ClassPath[BinaryRepr])
+
+  /** Update classpath with a substitution that maps entries to entries */
+  def updateClassPath(subst: Map[ClassPath[BinaryRepr], ClassPath[BinaryRepr]])
 
   /** Any platform-specific phases. */
   def platformPhases: List[SubComponent]