From 6631934df8775305bc6c92514b5dec3624f5ba4d Mon Sep 17 00:00:00 2001
From: Alexander Pánek <a.panek@brainsware.org>
Date: Tue, 16 Sep 2014 19:03:02 +0200
Subject: Note that also future parser does not work

---
 lib/puppet/parser/functions/validate_string.rb | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'lib/puppet/parser')

diff --git a/lib/puppet/parser/functions/validate_string.rb b/lib/puppet/parser/functions/validate_string.rb
index 0bab21e..c841f6a 100644
--- a/lib/puppet/parser/functions/validate_string.rb
+++ b/lib/puppet/parser/functions/validate_string.rb
@@ -14,11 +14,13 @@ module Puppet::Parser::Functions
         validate_string(true)
         validate_string([ 'some', 'array' ])
         
-    NOTE: undef will only fail when using the future parser (See: https://tickets.puppetlabs.com/browse/MODULES-457)
+    Note: validate_string(undef) will not fail in this version of the
+    functions API (incl. current and future parser). Instead, use:
+    
+        if $var == undef {
+          fail('...')
+        }
     
-        $undefined = undef
-        validate_string($undefined)
-
     ENDHEREDOC
 
     unless args.length > 0 then
-- 
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