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Diffstat (limited to 'lib/puppet/parser/functions/is_bool.rb')
-rw-r--r--lib/puppet/parser/functions/is_bool.rb22
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/is_bool.rb b/lib/puppet/parser/functions/is_bool.rb
new file mode 100644
index 0000000..8bbdbc8
--- /dev/null
+++ b/lib/puppet/parser/functions/is_bool.rb
@@ -0,0 +1,22 @@
+#
+# is_bool.rb
+#
+
+module Puppet::Parser::Functions
+ newfunction(:is_bool, :type => :rvalue, :doc => <<-EOS
+Returns true if the variable passed to this function is a boolean.
+ EOS
+ ) do |arguments|
+
+ raise(Puppet::ParseError, "is_bool(): Wrong number of arguments " +
+ "given (#{arguments.size} for 1)") if arguments.size != 1
+
+ type = arguments[0]
+
+ result = type.is_a?(TrueClass) || type.is_a?(FalseClass)
+
+ return result
+ end
+end
+
+# vim: set ts=2 sw=2 et :