puppetlabs-stdlib/lib/puppet/parser/functions/validate_hash.rb
Jeff McCune 4c00cfc610 (#8010) Add validate_hash function
This function validates all passed variables are hashes.  This is
similar to the validate_bool function and is copied from it.
2011-06-21 17:01:33 -07:00

37 lines
853 B
Ruby

module Puppet::Parser::Functions
newfunction(:validate_hash, :doc => <<-'ENDHEREDOC') do |args|
Validate all passed values are a Hash data structure
value does not pass the check.
Example:
These values validate
$my_hash = { 'one' => 'two' }
validate_hash($my_hash)
These values do NOT validate
validate_hash(true)
validate_hash('some_string')
$undefined = undef
validate_hash($undefined)
* Jeff McCune <jeff@puppetlabs.com>
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