Bug/Req:#61422&#39003 enble Type Hint autoloading

Hi internals: danko reported this bug#61422: Lack of autoload on type hinting breaks class_alias。 now parmeter type hint DID NOT trying to autoload. I think allow it autoloading could be helpful. BUGS&Commit for quick refer: - https://bugs.php.net/bug.php?id=61422 - https://bugs.php.net/bug.php?id=39003 - http://svn.php.net/viewvc?view=revision&revision=220906 PROPOSAL(FR)： **I'm asking if we can enable type hint autoloading?** I did some homework: - Before FIX for #39003, parameter type hint will try to autoload the hint class if not found. after this fix it will not. in bug#39003: the final result was DOC Problem, seems we all agreed that it SHOULD autoloading. - But in revision: http://svn.php.net/viewvc?view=revision&revision=220906 It was **FIXED** I try to search RFC about typehint, I didn't find anything about it. It was commited really long time ago almost 6 years ago, it would be very nice if Antony Dovgal still remember it;) REASON： Here is my reason to ask whether we can enable it: 1. Autoload will only happened when function/method calling. so does any other autoloading, I mean it wouldn't hurt performance. 2. Class will be used for sure, so trying to autoload it is reasonable: - If we need check certain Class, then we have to use the class in function/method. - most of time it already loaded*, so autoloading happened rarely. 3. If pass the wrong type and the hinted class not found this gives autoloader a change to handle it like the #61422' (https://bugs.php.net/bug.php?id=61422)s test script did. we can do something if not found. since we use the class in function/method, autoload the class is reasonable. most of the time we would not use the *FEATURE*, but it could make it more flexible. PATCH: 1. change zend_verify_arg_class_kind to autoload class 2. if class can't load, zend_fetch_class silently return (No fatal here) to give zend_verify_arg_class_kind a chance to report previous catchable_fatal_error eg： Catchable fatal error: Argument 1 passed to func() must be an instance of AX, integer given。 a simple patch attached request for comment. Finally, What do you guys think about it? Thanks. Best, -- reeze | simpie.com