UnusedUsesSniff: Fixed internal error

Author: kukulich

SlevomatCodingStandard/Sniffs/Namespaces/UnusedUsesSniff.php

@@ -156,6 +156,11 @@ public function process(File $phpcsFile, $openTagPointer): void
 				/** @var int $pointerBeforeUseStatements */
 				$pointerBeforeUseStatements = TokenHelper::findPrevious($phpcsFile, [T_OPEN_TAG, T_NAMESPACE], $docCommentOpenPointer - 1);
 
+				if (!array_key_exists($pointerBeforeUseStatements, $allUnusedNames)) {
+					$searchAnnotationsPointer = $tokens[$docCommentOpenPointer]['comment_closer'] + 1;
+					continue;
+				}
+
 				foreach ($allUnusedNames[$pointerBeforeUseStatements] as $useStatement) {
 					$nameAsReferencedInFile = $useStatement->getNameAsReferencedInFile();
 					$uniqueId = UseStatement::getUniqueId($useStatement->getType(), $nameAsReferencedInFile);

tests/Sniffs/Namespaces/UnusedUsesSniffTest.php

@@ -279,4 +279,12 @@ public function testFixableUnusedUses(): void
 		self::assertAllFixedInFile($report);
 	}
 
+	public function testNoUsesWithSearchInAnnotationsEnabledNoErrors(): void
+	{
+		$report = self::checkFile(__DIR__ . '/data/noUses.php', [
+			'searchAnnotations' => true,
+		]);
+		self::assertNoSniffErrorInFile($report);
+	}
+
 }

tests/Sniffs/Namespaces/data/noUses.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Foo;
+
+class Boo
+{
+
+	/** @var \Boo */
+	private $boo;
+
+}