class RuboCop::AST::ArgNode

the AST, making its methods available to all ‘arg` nodes within RuboCop.
This will be used in place of a plain node when the builder constructs
`kwrestarg`, `blockarg`, `shadowarg` and `forward_arg` nodes.
A node extension for `arg`, `optarg`, `restarg`, `kwarg`, `kwoptarg`,

def default?

Returns:
  • (Boolean) - whether the argument has a default value 
def default?
  optarg_type? || kwoptarg_type?
end

def default_value

Returns:
  • (Node, nil) - the default value of the argument 
def default_value
  return unless default?
  node_parts[1]
end

def name

Returns:
  • (Symbol, nil) - the name of the argument 
def name
  node_parts[0]
end