class RuboCop::Cop::Style::EmptyLiteral

def replacement_range(node)
  if hash_node(node) && first_argument_unparenthesized?(node)
    # `some_method {}` is not same as `some_method Hash.new`
    # because the braces are interpreted as a block. We will have
    # to rewrite the arguments to wrap them in parenthesis.
    args = node.parent.arguments
    range_between(args[0].source_range.begin_pos - 1, args[-1].source_range.end_pos)
  else
    node.source_range
  end
end