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<?hh interface Foo { public function foo(String $foo) : String; } class Bar implements Foo { public function foo(String $foo) { return new StdClass; } } $b = new Bar; $b->foo("test"); var_dump($b);
Output for hhvm-3.10.0 - 3.12.0
object(Bar)#1 (0) { }
Output for 5.3.0 - 5.4.32
<?hh interface Foo { public function foo(String $foo) : String; } class Bar implements Foo { public function foo(String $foo) { return new StdClass; } } $b = new Bar; $b->foo("test"); var_dump($b);