Re: Changes to constructor signature checks
| From: | Pierre Joye | Date: | Fri, 18 Nov 2011 19:02:44 +0000 |
| Subject: | Re: Changes to constructor signature checks | ||
| References: | 1 2 3 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-56408@lists.php.net to get a copy of this message | ||
On Fri, Nov 18, 2011 at 6:40 PM, Ralph Schindler
<ralph@ralphschindler.com> wrote:
> Hey Pierre,
>
> My perspective and expectations are framed by all sorts of existing
> literature as well as the discussions on this list. It saddens me that you
> did not address any of the points I've brought up. And, I simply cannot
> tell what basis you have for your interpretation and opinion. It seems more
> like you're basing your interpretation on preference alone.
Again, no, I do not base my opinion on personal preferences. I only do
not buy too much from the 'let do it the PHP way' when it comes to OO,
and yes I slightly move to the strict side.
> The facts are this:
>
> 1) What we know and have been told is that PHP's signature checking is
> governed by Liskov Substitution Principle. There are many references to
> this in the list.
And for this exact case, it is correctly implemented as of now.
> 2) "Abstract Constructors" do not exist in any other language, for all
> intents and purposes, it's something we've invented:
>
> http://www.google.com/search?&q=%22abstract+constructor%22
>
> That's fine, so now the question is, how does this thing we've invented play
> in with our current implementation of a class based object model and how
> does it meet developer preexisting expectations?
A construct is a specialized method, that does not change a yota what
abstract methods are.
> Even you Pierre, once promoted "looseness"
> http://news.php.net/php.internals/25089 (Pierre)
Only the doom never changes their mind :-D
> 4) We should meet everyone's existing expectations, Rasmus talks about this:
We should meet consistency with standard behaviors and then it is easy
to learn, for everyone.
Cheers,
--
Pierre
@pierrejoye | http://blog.thepimp.net | http://www.libgd.org