class RuboCop::Cop::Style::NestedParenthesizedCalls


method1(foo arg)
# good
@example AllowedMethods: [foo]
method1(method2 arg)
# bad
method1(method2(arg))
# good
@example
These are customizable with ‘AllowedMethods` option.
`respond_to`, and `start_with` methods are allowed by default.
`be_truthy`, `be_within`, `eq`, `eql`, `end_with`, `include`, `match`, `raise_error`,
`be`, `be_a`, `be_an`, `be_between`, `be_falsey`, `be_kind_of`, `be_instance_of`,
of a parenthesized method call.
Checks for unparenthesized method calls in the argument list

def self.autocorrect_incompatible_with 

def self.autocorrect_incompatible_with
  [Style::MethodCallWithArgsParentheses]
end

def allowed?(send_node) 

def allowed?(send_node)
  send_node.parent.arguments.one? &&
    allowed_method?(send_node.method_name) &&
    send_node.arguments.one?
end

def allowed_omission?(send_node) 

def allowed_omission?(send_node)
  !send_node.arguments? || send_node.parenthesized? ||
    send_node.setter_method? || send_node.operator_method? ||
    allowed?(send_node)
end

def autocorrect(corrector, nested) 

def autocorrect(corrector, nested)
  first_arg = nested.first_argument.source_range
  last_arg = nested.last_argument.source_range
  leading_space =
    range_with_surrounding_space(first_arg.begin,
                                 side: :left,
                                 whitespace: true,
                                 continuations: true)
  corrector.replace(leading_space, '(')
  corrector.insert_after(last_arg, ')')
end

def on_send(node) 

def on_send(node)
  return unless node.parenthesized?
  node.each_child_node(:call) do |nested|
    next if allowed_omission?(nested)
    message = format(MSG, source: nested.source)
    add_offense(nested, message: message) do |corrector|
      autocorrect(corrector, nested)
    end
  end
end