atom feed63 messages in net.php.lists.internalsRe: [PHP-DEV] Callable typehint
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Hannes MagnussonJun 6, 2011 12:41 pm.txt
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Hannes MagnussonJul 11, 2011 1:21 am 
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Peter CowburnJul 11, 2011 1:37 am 
Hannes MagnussonJul 11, 2011 1:38 am 
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Ferenc KovacsMay 27, 2013 10:59 pm 
Peter CowburnMay 27, 2013 11:47 pm 
Ferenc KovacsMay 28, 2013 1:21 am 
Subject:Re: [PHP-DEV] Callable typehint
From:Stas Malyshev (smal@sugarcrm.com)
Date:Jun 6, 2011 4:01:52 pm
List:net.php.lists.internals

Hi!

The point, though, is that with such a typehint available, we can reduce boilerplate code like the following:

Sure. How about reducing boilterplate code like this:

if(is_readable($foo)) { $var = file_get_contents($foo); } else { throw InvalidArgumentException(); }

Why won't we make language construct to do that too? I don't think these things belong in the language syntax.

public function addCallback($callback) { if (!is_callback($callback)) { throw new InvalidArgumentException(); }

The typehint makes this simpler:

public function addCallback(callback $callback)

You understand that these two pieces of code are completely different - for one, you can't catch failing strict type check upstream of addCallback and recover.

which allows us to rely on PHP's native error handling. I, for one, would love to see this.

I wouldn't love it a bit, frankly, as "rely on PHP's native error handling" in this context means "bombing out in runtime without any idea what went wrong". When you have exception, you could make it print what happened and recover, if you want. When you have fatal error, you can't do much at all.

-- Stanislav Malyshev, Software Architect SugarCRM: http://www.sugarcrm.com/ (408)454-6900 ext. 227

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