Fix $matches error

staabm · ondrejmirtes · commit 8752839bdaaf · 2024-08-22T09:10:11.000+02:00
diff --git a/src/Parser/StringUnescaper.php b/src/Parser/StringUnescaper.php
@@ -2,6 +2,7 @@
 
 namespace PHPStan\PhpDocParser\Parser;
 
+use PHPStan\ShouldNotHappenException;
 use function chr;
 use function hexdec;
 use function octdec;
@@ -56,6 +57,9 @@ static function ($matches) {
 					return chr((int) hexdec(substr($str, 1)));
 				}
 				if ($str[0] === 'u') {
+					if (!isset($matches[2])) {
+						throw new ShouldNotHappenException();
+					}
 					return self::codePointToUtf8((int) hexdec($matches[2]));
 				}
 

Original file line number	Diff line number	Diff line change
`@@ -2,6 +2,7 @@`
`2`	`2`
`3`	`3`	`namespace PHPStan\PhpDocParser\Parser;`
`4`	`4`
	`5`	`+use PHPStan\ShouldNotHappenException;`
`5`	`6`	`use function chr;`
`6`	`7`	`use function hexdec;`
`7`	`8`	`use function octdec;`
`@@ -56,6 +57,9 @@ static function ($matches) {`
`56`	`57`	`return chr((int) hexdec(substr($str, 1)));`
`57`	`58`	`}`
`58`	`59`	`if ($str[0] === 'u') {`
	`60`	`+ if (!isset($matches[2])) {`
	`61`	`+ throw new ShouldNotHappenException();`
	`62`	`+ }`
`59`	`63`	`return self::codePointToUtf8((int) hexdec($matches[2]));`
`60`	`64`	`}`
`61`	`65`