[Fix #7688] Support MethodCallWithArgsParentheses.new without config

CHANGELOG.md

@@ -20,6 +20,7 @@
 * [#7655](https://github.com/rubocop-hq/rubocop/issues/7655): Fix an error when processing a regexp with a line break at the start of capture parenthesis. ([@koic][])
 * [#7647](https://github.com/rubocop-hq/rubocop/issues/7647): Fix an `undefined method on_numblock` error when using Ruby 2.7's numbered parameters. ([@hanachin][])
 * [#7675](https://github.com/rubocop-hq/rubocop/issues/7675): Fix a false negative for `Layout/SpaceBeforeFirstArg` when a vertical argument positions are aligned. ([@koic][])
+* [#7688](https://github.com/rubocop-hq/rubocop/issues/7688): Fix a bug in `Style/MethodCallWithArgsParentheses` that made `--auto-gen-config` crash. ([@buehmann][])
 
 ### Changes
 

lib/rubocop/cop/mixin/configurable_enforced_style.rb

@@ -60,6 +60,10 @@ def detected_style=(style)
       alias conflicting_styles_detected no_acceptable_style!
       alias unrecognized_style_detected no_acceptable_style!
 
+      def style_configured?
+        cop_config.key?(style_parameter_name)
+      end
+
       def style
         @style ||= begin
           s = cop_config[style_parameter_name].to_sym

lib/rubocop/cop/style/method_call_with_args_parentheses.rb

@@ -150,6 +150,8 @@ class MethodCallWithArgsParentheses < Cop
 
         def initialize(*)
           super
+          return unless style_configured?
+
           case style
           when :require_parentheses
             extend RequireParentheses
@@ -158,6 +160,9 @@ def initialize(*)
           end
         end
 
+        # @abstract Overridden in style modules
+        def autocorrect(_node); end
+
         private
 
         def args_begin(node)