build(psalm): Enforce named attribute arguments

Signed-off-by: provokateurin <kate@provokateurin.de>

build/psalm/AttributeNamedParameters.php

@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+use PhpParser\Node\Attribute;
+use Psalm\CodeLocation;
+use Psalm\FileSource;
+use Psalm\Issue\InvalidDocblock;
+use Psalm\IssueBuffer;
+use Psalm\Plugin\EventHandler\Event\AfterClassLikeVisitEvent;
+
+class AttributeNamedParameters implements Psalm\Plugin\EventHandler\AfterClassLikeVisitInterface {
+	public static function afterClassLikeVisit(AfterClassLikeVisitEvent $event): void {
+		$stmt = $event->getStmt();
+		$statementsSource = $event->getStatementsSource();
+
+		foreach ($stmt->attrGroups as $attrGroup) {
+			foreach ($attrGroup->attrs as $attr) {
+				self::checkAttribute($attr, $statementsSource);
+			}
+		}
+
+		foreach ($stmt->getMethods() as $method) {
+			foreach ($method->attrGroups as $attrGroup) {
+				foreach ($attrGroup->attrs as $attr) {
+					self::checkAttribute($attr, $statementsSource);
+				}
+			}
+		}
+	}
+
+	private static function checkAttribute(Attribute $stmt, FileSource $statementsSource): void {
+		if ($stmt->name->getLast() === 'Attribute') {
+			return;
+		}
+
+		foreach ($stmt->args as $arg) {
+			if ($arg->name === null) {
+				IssueBuffer::maybeAdd(
+					new InvalidDocblock(
+						'Attribute arguments must be named.',
+						new CodeLocation($statementsSource, $stmt)
+					)
+				);
+			}
+		}
+	}
+}

psalm.xml

@@ -16,6 +16,7 @@
 >
 	<plugins>
 		<plugin filename="build/psalm/AppFrameworkTainter.php" />
+		<plugin filename="build/psalm/AttributeNamedParameters.php" />
 	</plugins>
 	<projectFiles>
 		<directory name="apps/admin_audit"/>