disable the Squiz\VariableCommentSniff "missing" code, to fix union types

src/DigiComp/Sniffs/Commenting/VariableCommentSniff.php

@@ -16,6 +16,7 @@ class VariableCommentSniff extends \PHP_CodeSniffer\Standards\Squiz\Sniffs\Comme
             \T_PROTECTED => \T_PROTECTED,
             \T_VAR => \T_VAR,
             \T_STATIC => \T_STATIC,
+            \T_TYPE_UNION => \T_TYPE_UNION,
             \T_WHITESPACE => \T_WHITESPACE,
             \T_STRING => \T_STRING,
             \T_NS_SEPARATOR => \T_NS_SEPARATOR,
@@ -50,7 +51,15 @@ class VariableCommentSniff extends \PHP_CodeSniffer\Standards\Squiz\Sniffs\Comme
             $phpcsFile->addWarning($error, $commentEnd, 'MissingVarOrInheritDoc');
             return;
         }
-
+        // remove the error reporting from base class, as it does not accept union types
+        // https://github.com/squizlabs/PHP_CodeSniffer/pull/3757
+        $oldSeverity = $phpcsFile->ruleset->ruleset['DigiComp.Commenting.VariableComment.Missing']['severity'] ?? null;
+        $phpcsFile->ruleset->ruleset['DigiComp.Commenting.VariableComment.Missing']['severity'] = 0;
         parent::processMemberVar($phpcsFile, $stackPtr);
+        if ($oldSeverity) {
+            $phpcsFile->ruleset->ruleset['DigiComp.Commenting.VariableComment.Missing']['severity'] = $oldSeverity;
+        } else {
+            unset($phpcsFile->ruleset->ruleset['DigiComp.Commenting.VariableComment.Missing']['severity']);
+        }
     }
 }

tests/DigiComp/Sniffs/Commenting/data/comments.php

@@ -37,3 +37,10 @@ class E extends A {
     #[\OwnAttribute]
     protected $myVar;
 }
+
+class F extends A {
+    /**
+     * @var A|E
+     */
+    protected A|E $myVar;
+}