docs: Fix docs for disabled rules in rulesets

doc/ruleSets/PhpCsFixer.rst

@@ -52,7 +52,11 @@ Rules
 - `phpdoc_var_annotation_correct_order <./../rules/phpdoc/phpdoc_var_annotation_correct_order.rst>`_
 - `return_assignment <./../rules/return_notation/return_assignment.rst>`_
 - `single_line_comment_style <./../rules/comment/single_line_comment_style.rst>`_
-- `single_line_throw <./../rules/function_notation/single_line_throw.rst>`_
 - `whitespace_after_comma_in_array <./../rules/array_notation/whitespace_after_comma_in_array.rst>`_
   config:
   ``['ensure_single_space' => true]``
+
+Disabled rules
+--------------
+
+- `single_line_throw <./../rules/function_notation/single_line_throw.rst>`_

doc/ruleSets/SymfonyRisky.rst

@@ -31,7 +31,6 @@ Rules
 - `no_homoglyph_names <./../rules/naming/no_homoglyph_names.rst>`_
 - `no_php4_constructor <./../rules/class_notation/no_php4_constructor.rst>`_
 - `no_unneeded_final_method <./../rules/class_notation/no_unneeded_final_method.rst>`_
-- `no_unreachable_default_argument_value <./../rules/function_notation/no_unreachable_default_argument_value.rst>`_
 - `no_useless_sprintf <./../rules/function_notation/no_useless_sprintf.rst>`_
 - `non_printable_character <./../rules/basic/non_printable_character.rst>`_
 - `ordered_traits <./../rules/class_notation/ordered_traits.rst>`_
@@ -45,3 +44,8 @@ Rules
 - `string_length_to_empty <./../rules/string_notation/string_length_to_empty.rst>`_
 - `string_line_ending <./../rules/string_notation/string_line_ending.rst>`_
 - `ternary_to_elvis_operator <./../rules/operator/ternary_to_elvis_operator.rst>`_
+
+Disabled rules
+--------------
+
+- `no_unreachable_default_argument_value <./../rules/function_notation/no_unreachable_default_argument_value.rst>`_

src/Documentation/RuleSetDocumentationGenerator.php

@@ -50,34 +50,45 @@ public function generateRuleSetsDocumentation(RuleSetDescriptionInterface $defin
             $doc .= ' This set contains rules that are risky.';
         }
 
-        $doc .= "\n\n";
-
         $rules = $definition->getRules();
 
-        if (\count($rules) < 1) {
-            $doc .= 'This is an empty set.';
+        if ([] === $rules) {
+            $doc .= "\n\nThis is an empty set.";
         } else {
-            $doc .= "Rules\n-----\n";
-
-            foreach ($rules as $rule => $config) {
-                if (str_starts_with($rule, '@')) {
-                    $ruleSetPath = $this->locator->getRuleSetsDocumentationFilePath($rule);
-                    $ruleSetPath = substr($ruleSetPath, strrpos($ruleSetPath, '/'));
-
-                    $doc .= "\n- `{$rule} <.{$ruleSetPath}>`_";
-                } else {
-                    $path = Preg::replace(
-                        '#^'.preg_quote($this->locator->getFixersDocumentationDirectoryPath(), '#').'/#',
-                        './../rules/',
-                        $this->locator->getFixerDocumentationFilePath($fixerNames[$rule])
-                    );
-
-                    $doc .= "\n- `{$rule} <{$path}>`_";
+            $enabledRules = array_filter($rules, static fn ($config) => false !== $config);
+            $disabledRules = array_filter($rules, static fn ($config) => false === $config);
+
+            $listRules = function (array $rules) use (&$doc, $fixerNames): void {
+                foreach ($rules as $rule => $config) {
+                    if (str_starts_with($rule, '@')) {
+                        $ruleSetPath = $this->locator->getRuleSetsDocumentationFilePath($rule);
+                        $ruleSetPath = substr($ruleSetPath, strrpos($ruleSetPath, '/'));
+
+                        $doc .= "\n- `{$rule} <.{$ruleSetPath}>`_";
+                    } else {
+                        $path = Preg::replace(
+                            '#^'.preg_quote($this->locator->getFixersDocumentationDirectoryPath(), '#').'/#',
+                            './../rules/',
+                            $this->locator->getFixerDocumentationFilePath($fixerNames[$rule])
+                        );
+
+                        $doc .= "\n- `{$rule} <{$path}>`_";
+                    }
+
+                    if (!\is_bool($config)) {
+                        $doc .= "\n  config:\n  ``".HelpCommand::toString($config).'``';
+                    }
                 }
+            };
 
-                if (!\is_bool($config)) {
-                    $doc .= "\n  config:\n  ``".HelpCommand::toString($config).'``';
-                }
+            if ([] !== $enabledRules) {
+                $doc .= "\n\nRules\n-----\n";
+                $listRules($enabledRules);
+            }
+
+            if ([] !== $disabledRules) {
+                $doc .= "\n\nDisabled rules\n--------------\n";
+                $listRules($disabledRules);
             }
         }