Dumper: prints closures as func(...) in PHP 8.1

Author: dg

src/PhpGenerator/Dumper.php

@@ -129,7 +129,9 @@ private function dumpObject(&$var, array $parents, int $level): string
 		} elseif ($var instanceof \Closure) {
 			$inner = Nette\Utils\Callback::unwrap($var);
 			if (Nette\Utils\Callback::isStatic($inner)) {
-				return '\Closure::fromCallable(' . $this->dump($inner) . ')';
+				return PHP_VERSION_ID < 80100
+					? '\Closure::fromCallable(' . $this->dump($inner) . ')'
+					: implode('::', (array) $inner) . '(...)';
 			}
 			throw new Nette\InvalidArgumentException('Cannot dump closure.');
 		}

tests/PhpGenerator/Dumper.dump().phpt

@@ -129,12 +129,16 @@ Assert::exception(function () {
 
 // closures
 Assert::same(
-	"\\Closure::fromCallable('strlen')",
+	PHP_VERSION_ID < 80100
+		? "\\Closure::fromCallable('strlen')"
+		: 'strlen(...)',
 	$dumper->dump(Closure::fromCallable('strlen'))
 );
 
 Assert::same(
-	"\\Closure::fromCallable(['Nette\\PhpGenerator\\ClassType', 'from'])",
+	PHP_VERSION_ID < 80100
+		? "\\Closure::fromCallable(['Nette\\PhpGenerator\\ClassType', 'from'])"
+		: 'Nette\PhpGenerator\ClassType::from(...)',
 	$dumper->dump(Closure::fromCallable([Nette\PhpGenerator\ClassType::class, 'from']))
 );