Re: Return Type Hinting for Methods RFC
| From: | Alain Williams | Date: | Thu, 22 Dec 2011 23:21:18 +0000 |
| Subject: | Re: Return Type Hinting for Methods RFC | ||
| References: | 1 2 3 4 5 6 7 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-57039@lists.php.net to get a copy of this message | ||
On Thu, Dec 22, 2011 at 06:08:26PM -0500, Will Fitch wrote:
> Most modern languages allow returning null in any case. This is a hail
> Mary in the event something happens, but throwing an exception is
> inappropriate. I see no reason to diverge from that.
Agreed, it is often convenient to return NULL or FALSE to indicate failure
or something like end of input (think: fgetc()). I was mulling syntax like:
function (string|boolean:false) fgetc(resource $handle)
Then the compiler would know that after:
if( ($ch = fgetc($in)) === FALSE)
return;
that $ch is string ... but seems too complicated.
--
Alain Williams
Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer.
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