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Date: Thu, 15 Jan 2015 11:30:48 +0000
Message-ID: <CAL0xaBEM6AvcQMFTaWkyGt2uvQnx+nS+oJzi+xkr=WDYRmX+Zw@mail.gmail.com>
To: Andrea Faulds <ajf@ajf.me>, marcio3w@gmail.com
Cc: Robert Stoll <php@tutteli.ch>, PHP Internals List <internals@lists.php.net>
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Subject: Re: [PHP-DEV] [RFC] Scalar Type Hints v0.2
From: arvids.godjuks@gmail.com (Arvids Godjuks)

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On

15

Jan

2015,

at

0:33, Andrea Faulds <ajf@ajf.me>:

Hi Marcio,

> On 14 Jan 2015, at 18:52, Marcio Almada <marcio.web2@gmail.com> wrote:
>
> We still have a BC break but now we also have code with **mutant**
behavior that might become buggy (do unexpected things) if a `declare` is
used. As a language user and a package maintainer it would be a huge
problem. Imagine how would be to maintain a package that can be used with
both strict and coercive type checking. We would have to write 2x more
tests and yet pollute code with manual type checks (is_string, is_integer)
for the non strict runtime mode when type check is necessary.

I don=E2=80=99t see why this would create =E2=80=9Cmutant=E2=80=9D or =E2=
=80=9Cbuggy=E2=80=9D behaviour. You always
get the type you ask for: the weak behaviour is precisely the same as in
v0.1. The strict behaviour is fairly intuitive. In no case will you ever
receive the wrong type.

I don=E2=80=99t understand.
--
Andrea Fauld

s



 Hello Andrea!

Consider what a mess was register_globals and problems it had, but at least
it was a global setting. Declare will work on per file basis, and it will
end up even more of a mess.

I think PHP development community learned that lesson and that's why you
get pushback, and not only from internals, but also from the userland. Me
including.

Rergards,
Arvids.

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