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<?php namespace A { class Foo { public $foo; public function __construct() { $this->foo = function (int $a) { var_dump("foo"); }; } } } namespace { ((new A\Foo)->foo)(null); echo "Done\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: A\Foo::A\{closure}(): Argument #1 ($a) must be of type int, null given, called in /in/tDjfk on line 16 and defined in /in/tDjfk:8 Stack trace: #0 /in/tDjfk(16): A\Foo->A\{closure}(NULL) #1 {main} thrown in /in/tDjfk on line 8
Process exited with code 255.

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