From adc5c176f1ffbaec174a976a2a88e9341425ea28 Mon Sep 17 00:00:00 2001
From: Iustin Pop <iustin@google.com>
Date: Mon, 30 Aug 2010 11:10:06 +0200
Subject: [PATCH] Add some more debugging functions
These are just variations of the standard debug, but are provided for
simpler code, since lazyness is something causing non-computation of
debug statements.
---
Ganeti/HTools/Utils.hs | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/Ganeti/HTools/Utils.hs b/Ganeti/HTools/Utils.hs
index 0d585b693..f82710831 100644
--- a/Ganeti/HTools/Utils.hs
+++ b/Ganeti/HTools/Utils.hs
@@ -2,7 +2,7 @@
{-
-Copyright (C) 2009 Google Inc.
+Copyright (C) 2009, 2010 Google Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -24,6 +24,8 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
module Ganeti.HTools.Utils
(
debug
+ , debugFn
+ , debugXy
, sepSplit
, varianceCoeff
, commaJoin
@@ -56,6 +58,14 @@ import Ganeti.HTools.Types
debug :: Show a => a -> a
debug x = trace (show x) x
+-- | Displays a modified form of the second parameter before returning it
+debugFn :: Show b => (a -> b) -> a -> a
+debugFn fn x = debug (fn x) `seq` x
+
+-- | Show the first parameter before returning the second one
+debugXy :: Show a => a -> b -> b
+debugXy a b = debug a `seq` b
+
-- * Miscelaneous
-- | Comma-join a string list.
--
GitLab