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<?php trait t { public function f() { return __CLASS__; } } class c { use t; } function dick(t $a) { return $a->f(); } $c = new c(); echo $c->f(); echo dick($c);
Output for git.master, git.master_jit, rfc.property-hooks
c Fatal error: Uncaught TypeError: dick(): Argument #1 ($a) must be of type t, c given, called in /in/to5ha on line 14 and defined in /in/to5ha:9 Stack trace: #0 /in/to5ha(14): dick(Object(c)) #1 {main} thrown in /in/to5ha on line 9
Process exited with code 255.

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