Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:75588
Return-Path: <rowan.collins@gmail.com>
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Delivered-To: mailing list internals@lists.php.net
Received: (qmail 98760 invoked from network); 16 Jul 2014 12:26:25 -0000
Received: from unknown (HELO lists.php.net) (127.0.0.1)
  by localhost with SMTP; 16 Jul 2014 12:26:25 -0000
Authentication-Results: pb1.pair.com header.from=rowan.collins@gmail.com; sender-id=pass
Authentication-Results: pb1.pair.com smtp.mail=rowan.collins@gmail.com; spf=pass; sender-id=pass
Received-SPF: pass (pb1.pair.com: domain gmail.com designates 209.85.212.177 as permitted sender)
X-PHP-List-Original-Sender: rowan.collins@gmail.com
X-Host-Fingerprint: 209.85.212.177 mail-wi0-f177.google.com  
Received: from [209.85.212.177] ([209.85.212.177:51688] helo=mail-wi0-f177.google.com)
	by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP
	id E3/20-31820-07F66C35 for <internals@lists.php.net>; Wed, 16 Jul 2014 08:26:25 -0400
Received: by mail-wi0-f177.google.com with SMTP id ho1so1222798wib.4
        for <internals@lists.php.net>; Wed, 16 Jul 2014 05:26:22 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=message-id:date:from:user-agent:mime-version:to:cc:subject
         :references:in-reply-to:content-type:content-transfer-encoding;
        bh=luAbNKvfXQWei3rl4zhHogTXu+OuMQXUr6ppWl8arqw=;
        b=m46JhHT/lz9Oby+UWZ1WWu7risWVB1E1Nwork3qBoZOK8B+ki4fo7XS1PVxCvQRXan
         AZ2iWhUV6sqi6na/UpRGWGMKwDeD40xGsmw79azXAoOvAj+6x4OIfkX2jK1jg+w1YrcB
         qxC2vt/c16STbMLns61VX7x0/k3f3Lc2kAMfMkMVTbfgOCyBDCb6+PS36oP/j305UV2x
         dTHueB+7n3G56pKEK0Wc67RCm3EA5+fDZqAkbq8q/OyIIF7oSmBmZn/uQZ+aOd3hXk9l
         8kFhJDLqwG9/csOh3OdjKKMOpYxSPttOiuHK+eMJNgS3o1ktsB/rc6wSVeiA9zlq8U7F
         gqUw==
X-Received: by 10.194.91.228 with SMTP id ch4mr35614461wjb.59.1405513581844;
        Wed, 16 Jul 2014 05:26:21 -0700 (PDT)
Received: from [192.168.0.139] ([62.189.198.114])
        by mx.google.com with ESMTPSA id l8sm39471130wje.15.2014.07.16.05.26.19
        for <multiple recipients>
        (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128);
        Wed, 16 Jul 2014 05:26:21 -0700 (PDT)
Message-ID: <53C66EED.1000402@gmail.com>
Date: Wed, 16 Jul 2014 13:24:13 +0100
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0
MIME-Version: 1.0
To: Andrey Andreev <narf@devilix.net>
CC: "internals@lists.php.net" <internals@lists.php.net>
References: <08503591-EFC8-48E6-984E-FFC292C5EA5F@ajf.me>	<16D48604-0C0A-4613-91A4-21392E3A2636@ajf.me>	<CAGAGxbZG+c46P4E2pmEHNnEv=4DyTrHOuXbZu3zAOSU3M6-A-A@mail.gmail.com>	<05CE2216-C5D9-4937-9F2E-AA1407284D9F@ajf.me>	<53C460DF.5040304@sugarcrm.com>	<53C53A96.2040303@gmail.com>	<53C55342.1010207@sugarcrm.com>	<53C563B3.6060905@gmail.com>	<CAPhkiZwvqW=d3Ayn-=Hx5HfkcOFB+gQ6rRoFThxA8hESK4WLrA@mail.gmail.com>	<54536191-1B92-4933-973F-0C8289D13A4C@ajf.me>	<CAPhkiZxCZtaBDfq407Zk+CoxjgESHABZjppUe6T9UmVt44ss5A@mail.gmail.com>	<53C63872.4030404@gmail.com> <CAPhkiZxewxdKChYso0DX0Dm8vcsGvzLbiLOG52okWrBPR-WH_Q@mail.gmail.com>
In-Reply-To: <CAPhkiZxewxdKChYso0DX0Dm8vcsGvzLbiLOG52okWrBPR-WH_Q@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [PHP-DEV] [RFC] Scalar Type Hinting With Casts (re-opening)
From: rowan.collins@gmail.com (Rowan Collins)

Andrey Andreev wrote (on 16/07/2014):
> I understand that this RFC is about type cast hints and that's fine
> with me.

It is and it isn't. It's about a hybrid approach which deliberately 
mixes casting and validation.

Having the mixture alongside pure casts or pure validation is less 
attractive than having the two "pure" forms side by side, but the 
mixture provides something which can't easily be emulated by either of 
the "pure" forms.

Therein lies the problem.