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Date: Thu, 12 May 2016 15:41:20 -0700
Message-ID: <CAESVnVoW8+c1iDHxc52o2cxhiuBn7Z5Ag0+hsh1xKv73kUbBNQ@mail.gmail.com>
To: =?UTF-8?Q?Fran=C3=A7ois_Laupretre?= <francois@php.net>
Cc: Zeev Suraski <zeev@zend.com>, Quim Calpe <quim@kalpe.com>, "davey@php.net" <davey@php.net>, 
	Larry Garfield <larry@garfieldtech.com>, 
	"internals@lists.php.net" <internals@lists.php.net>
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Subject: Re: [PHP-DEV] [RFC] Pipe Operator
From: pollita@php.net (Sara Golemon)

On Thu, May 12, 2016 at 11:52 AM, Fran=C3=A7ois Laupretre <francois@php.net=
> wrote:
> If we restrict usage to function calls, we can quite easily get rid of th=
e $$ by
> associating to each function the position where the lhs must be inserted
> when used as a 'piped function call'.
>
So we'd have to audit all 4k+ functions in the PHP runtime (and
provide a mechanism for defining it on userspace functions)?

That feels like a LOT of work for an alternate approach to something
which takes much less work as proposed.  I'm hoping I misunderstand
what you're suggesting...

> Getting rid of the $$ would resolve most issues about parameter order in =
the
> existing library, which is probably the biggest PHP sadness.
>
I will admit that anything which alleviates the sadness from argument
ordering in the standard lib will be nice.  I'm just skeptical of the
work it'll take to get there.

> My question, before I write a detailed proposal for this, is : do you wan=
t
> to keep the possiblility to use *any* expression between pipe operators, =
or
> would it be acceptable to restrict this to function calls?
>
I'd like to keep the ability to use arbitrary expressions as it keeps
the language overall more consistent.   That said, nothing is set in
stone and the point of a discussion period is to discuss. Maybe with
your proposal written out it'll make more sense to me.

-Sara