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<?php class Foo { public function __construct( public $callable = static function (): void {} { // <----- BRACES OVERFLOW 🙈 set($value) { if (!is_callable($value)) { throw new \InvalidArgumentException('This is not callable, bro.'); } $this->callable = $value; } } ) {} } $foo = new Foo(static function (): void { echo 'TEST'; }); ($foo->callable)(); $foo->callable = new \stdClass();
Output for git.master, git.master_jit
TEST Fatal error: Uncaught InvalidArgumentException: This is not callable, bro. in /in/3inE8:8 Stack trace: #0 /in/3inE8(21): Foo->$callable::set(Object(stdClass)) #1 {main} thrown in /in/3inE8 on line 8
Process exited with code 255.

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