diff options
Diffstat (limited to 'puppet/modules/stdlib/lib/puppet/parser/functions/validate_hash.rb')
-rw-r--r-- | puppet/modules/stdlib/lib/puppet/parser/functions/validate_hash.rb | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/puppet/modules/stdlib/lib/puppet/parser/functions/validate_hash.rb b/puppet/modules/stdlib/lib/puppet/parser/functions/validate_hash.rb new file mode 100644 index 00000000..9bdd5432 --- /dev/null +++ b/puppet/modules/stdlib/lib/puppet/parser/functions/validate_hash.rb @@ -0,0 +1,33 @@ +module Puppet::Parser::Functions + + newfunction(:validate_hash, :doc => <<-'ENDHEREDOC') do |args| + Validate that all passed values are hash data structures. Abort catalog + compilation if any value fails this check. + + The following values will pass: + + $my_hash = { 'one' => 'two' } + validate_hash($my_hash) + + The following values will fail, causing compilation to abort: + + validate_hash(true) + validate_hash('some_string') + $undefined = undef + validate_hash($undefined) + + ENDHEREDOC + + unless args.length > 0 then + raise Puppet::ParseError, ("validate_hash(): wrong number of arguments (#{args.length}; must be > 0)") + end + + args.each do |arg| + unless arg.is_a?(Hash) + raise Puppet::ParseError, ("#{arg.inspect} is not a Hash. It looks to be a #{arg.class}") + end + end + + end + +end |