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Date: Tue, 16 Mar 2010 00:24:45 +0000
Message-ID: <10845a341003151724y19ed9f4fx9f6d2a4e31cbd710@mail.gmail.com>
To: Larry Garfield <larry@garfieldtech.com>
Cc: internals@lists.php.net
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Subject: Re: [PHP-DEV] Re: [fw-webservices] Re: [PHP-DEV] RFC - "class 
	underloading" -or- "ancestor overloading"
From: rquadling@googlemail.com (Richard Quadling)

On 15 March 2010 21:43, Larry Garfield <larry@garfieldtech.com> wrote:
> On Monday 15 March 2010 03:08:28 pm Nate Gordon wrote:
>
>> > If there were a syntactic-level support for "wrap this object in this
>> > class and pass through any method that isn't redefined", a sort of
>> > sideways extends,
>> > that would become much simpler. =C2=A0I'm not sure what that would loo=
k like,
>> > though.
>> >
>> > Or perhaps this is a good time to revisit the traits proposal from a f=
ew
>> > months back?
>>
>> While traits do seem pretty cool, the fundamental problem appears to be
>> =C2=A0that Framework X doesn't let me do what I want. =C2=A0Unfortunatel=
y that is the
>> =C2=A0side effect of using a framework, it does things for you. =C2=A0I =
had attempted
>> =C2=A0to build a system like this in userland code to dynamically replac=
e
>> =C2=A0classes in my framework, but scrapped it because I could only see =
ways in
>> =C2=A0which it would be abused. =C2=A0If someone replaces a class buried=
 in a
>> =C2=A0framework, that modifies some bit of functionality, which is depen=
ded on
>> =C2=A0by a completely unrelated area of the framework, it could potentia=
lly
>> =C2=A0cause issues that would be very hard to track down. =C2=A0This sou=
nds a lot
>> =C2=A0like aspect oriented programming in the ability to completely over=
write a
>> =C2=A0function with userland code.
>>
>> I feel like the better solution is to fix the framework to allow the
>> flexibility to do what you want in a controlled manner, and not bend the
>> language to fix the framework. =C2=A0I don't mean to say that PHP is pro=
blem
>> =C2=A0free or perfect, but I'm not sure this is the best method to fix t=
he
>> =C2=A0problem at hand.
>
> Certainly true; it's not PHP's job to work around framework flaws. =C2=A0=
However, if
> PHP can make it easier to make frameworks that don't have common flaws, t=
hat is
> something it can and IMO should do.
>
> Traits wouldn't fix the issue mentioned here, but might allow the framewo=
rk to
> be written in a way that doesn't have, or at least ameliorates, these sor=
ts of
> issues.
>
> Or perhaps there's a different approach besides traits that would work be=
tter.
> I dunno. :-)
>
> --Larry Garfield

The ability to "registerASubClassForThisClass" idea (don't know the
proper name for this), has certainly worked for me.


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Richard Quadling
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