From 04c4bd3624b094043ff0f2410c1e376a51f457f7 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Thu, 15 Apr 2010 00:37:36 +0000
Subject: * Store lists as lists of pointers to values rather than as lists of 
  values.  This improves sharing and gives another speed up.   Evaluation of
 the NixOS system attribute is now almost 7 times   faster than the old
 evaluator.

---
 src/libexpr/eval.hh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/libexpr/eval.hh')

diff --git a/src/libexpr/eval.hh b/src/libexpr/eval.hh
index 313a1d9b8e5f..7252cae4b5af 100644
--- a/src/libexpr/eval.hh
+++ b/src/libexpr/eval.hh
@@ -76,7 +76,7 @@ struct Value
         Bindings * attrs;
         struct {
             unsigned int length;
-            Value * elems;
+            Value * * elems;
         } list;
         struct {
             Env * env;
@@ -282,8 +282,8 @@ private:
     
     unsigned long nrEnvs;
     unsigned long nrValuesInEnvs;
-    unsigned long nrValuesInLists;
     unsigned long nrValues;
+    unsigned long nrListElems;
     unsigned long nrEvaluated;
     unsigned int recursionDepth;
     unsigned int maxRecursionDepth;
-- 
cgit 1.4.1