Statistics reorganization

Statistics were broken since the move to reflect.internal. They are now
re-organized, made more robost and modular.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/reflect/scala/reflect/internal/Trees.scala b/src/reflect/scala/reflect/internal/Trees.scala
index 75bb0e6d49..e100e0c1a3 100644
--- a/src/reflect/scala/reflect/internal/Trees.scala
+++ b/src/reflect/scala/reflect/internal/Trees.scala
@@ -9,6 +9,7 @@ package internal
 import Flags._
 import base.Attachments
 import collection.mutable.{ListBuffer, LinkedHashSet}
+import util.Statistics
 
 trait Trees extends api.Trees { self: SymbolTable =>
 
@@ -18,6 +19,8 @@ trait Trees extends api.Trees { self: SymbolTable =>
     val id = nodeCount // TODO: add to attachment?
     nodeCount += 1
 
+    Statistics.incCounter(TreesStats.nodeByType, getClass)
+
     @inline final def pos: Position = rawatt.pos
     def pos_=(pos: Position): Unit = rawatt = (rawatt withPos pos)
     def setPos(newpos: Position): this.type = { pos = newpos; this }
@@ -1592,4 +1595,11 @@ trait Trees extends api.Trees { self: SymbolTable =>
   implicit val TypeBoundsTreeTag = ClassTag[TypeBoundsTree](classOf[TypeBoundsTree])
   implicit val ExistentialTypeTreeTag = ClassTag[ExistentialTypeTree](classOf[ExistentialTypeTree])
   implicit val TypeTreeTag = ClassTag[TypeTree](classOf[TypeTree])
+
+  val treeNodeCount = Statistics.newView("#created tree nodes")(nodeCount)
+}
+
+object TreesStats {
+  // statistics
+  val nodeByType = Statistics.newByClass("#created tree nodes by type")(Statistics.newCounter(""))
 }