Fix false positive for aliases matching PHP class names

Author: podlesny-j

src/Type/Doctrine/ArgumentsProcessor.php

@@ -7,6 +7,7 @@
 use PHPStan\Rules\Doctrine\ORM\DynamicQueryBuilderArgumentException;
 use PHPStan\Type\Doctrine\QueryBuilder\Expr\ExprType;
 use function count;
+use function in_array;
 use function strpos;
 
 /** @api */
@@ -32,7 +33,7 @@ public function processArgs(
 	): array
 	{
 		$args = [];
-		foreach ($methodCallArgs as $arg) {
+		foreach ($methodCallArgs as $argIndex => $arg) {
 			if ($arg->unpack) {
 				throw new DynamicQueryBuilderArgumentException();
 			}
@@ -61,12 +62,14 @@ public function processArgs(
 			if ($value->isClassString()->yes() && count($value->getClassStringObjectType()->getObjectClassNames()) === 1) {
 				/** @var class-string $className */
 				$className = $value->getClassStringObjectType()->getObjectClassNames()[0];
-				if ($this->objectMetadataResolver->isTransient($className)) {
-					throw new DynamicQueryBuilderArgumentException();
+				$isEntityClassArgument = $argIndex === 0 && in_array($methodName, ['from', 'join', 'innerJoin', 'leftJoin'], true);
+				if ($isEntityClassArgument) {
+					if ($this->objectMetadataResolver->isTransient($className)) {
+						throw new DynamicQueryBuilderArgumentException();
+					}
+					$args[] = $className;
+					continue;
 				}
-
-				$args[] = $className;
-				continue;
 			}
 
 			if (count($value->getConstantScalarValues()) !== 1) {

tests/Type/Doctrine/data/QueryResult/queryBuilderGetQuery.php

@@ -310,4 +310,14 @@ public function testNonEntityClassString(EntityManagerInterface $em, string $cla
 		assertType('mixed', $result);
 	}
 
+	public function testEventAlias(EntityManagerInterface $em): void
+	{
+		$query = $em->createQueryBuilder()
+			->select('event')
+			->from(Many::class, 'event')
+			->getQuery();
+
+		assertType('Doctrine\ORM\Query<null, QueryResult\Entities\Many>', $query);
+	}
+
 }