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-rw-r--r--lib/puppet/parser/functions/swapcase.rb3
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/puppet/parser/functions/swapcase.rb b/lib/puppet/parser/functions/swapcase.rb
index b9e6632..eb7fe13 100644
--- a/lib/puppet/parser/functions/swapcase.rb
+++ b/lib/puppet/parser/functions/swapcase.rb
@@ -18,9 +18,8 @@ Would result in: "AbCd"
"given (#{arguments.size} for 1)") if arguments.size < 1
value = arguments[0]
- klass = value.class
- unless [Array, String].include?(klass)
+ unless value.is_a?(Array) || value.is_a?(String)
raise(Puppet::ParseError, 'swapcase(): Requires either ' +
'array or string to work with')
end