Method: Puppet::Functions::DispatcherBuilder#optional_block_param

Defined in:
lib/puppet/functions.rb

#optional_block_param(*type_and_name) ⇒ Object

Defines one optional block parameter that may appear last. If type or name is missing the defaults are “any callable”, and the name is “block”. The implementor of the dispatch target must use block = nil when it is optional (or an error is raised when the call is made).



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# File 'lib/puppet/functions.rb', line 513

def optional_block_param(*type_and_name)
  # same as required, only wrap the result in an optional type
  required_block_param(*type_and_name)
  @block_type = Puppet::Pops::Types::TypeFactory.optional(@block_type)
end