Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:53175 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 80168 invoked from network); 7 Jun 2011 19:04:44 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 7 Jun 2011 19:04:44 -0000 Authentication-Results: pb1.pair.com smtp.mail=david.zuelke@bitextender.com; spf=permerror; sender-id=unknown Authentication-Results: pb1.pair.com header.from=david.zuelke@bitextender.com; sender-id=unknown Received-SPF: error (pb1.pair.com: domain bitextender.com from 80.237.132.12 cause and error) X-PHP-List-Original-Sender: david.zuelke@bitextender.com X-Host-Fingerprint: 80.237.132.12 wp005.webpack.hosteurope.de Received: from [80.237.132.12] ([80.237.132.12:48664] helo=wp005.webpack.hosteurope.de) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id 15/D5-50253-5467EED4 for ; Tue, 07 Jun 2011 15:04:41 -0400 Received: from dslb-092-075-002-048.pools.arcor-ip.net ([92.75.2.48] helo=[192.168.0.102]); authenticated by wp005.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) id 1QU1Zf-0004Zl-7w; Tue, 07 Jun 2011 21:04:23 +0200 Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/signed; boundary=Apple-Mail-23-601264797; protocol="application/pkcs7-signature"; micalg=sha1 In-Reply-To: Date: Tue, 7 Jun 2011 21:04:22 +0200 Cc: Stas Malyshev , "Matthew Weier O'Phinney" , "internals@lists.php.net" Message-ID: <18D9D84A-FDE5-4986-92F3-362457AA0348@bitextender.com> References: <4DED3A29.1090209@sugarcrm.com> <4DED43D4.4070006@sugarcrm.com> <4DED5C77.8040209@sugarcrm.com> To: Jordi Boggiano X-Mailer: Apple Mail (2.1084) X-bounce-key: webpack.hosteurope.de;david.zuelke@bitextender.com;1307473477;16a44dad; Subject: Re: [PHP-DEV] Callable typehint From: david.zuelke@bitextender.com (=?iso-8859-1?Q?David_Z=FClke?=) --Apple-Mail-23-601264797 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On 07.06.2011, at 12:09, Jordi Boggiano wrote: > On Tue, Jun 7, 2011 at 1:02 AM, Stas Malyshev = wrote: >> Sure. How about reducing boilterplate code like this: >>=20 >> if(is_readable($foo)) { >> $var =3D file_get_contents($foo); >> } else { >> throw InvalidArgumentException(); >> } >>=20 >> Why won't we make language construct to do that too? I don't think = these >> things belong in the language syntax. >=20 > The whole point is that callables are generally not constructed from > user input, they're hardcoded in the code somewhere, and so if a fatal > error occurs, the developer notices it, hopefully during development. >=20 > With is_readable, a file can be anywhere, anytime, readable or not, it > depends on the environment the code runs on, and not on the code > itself, so it's not deterministic and you should therefore be able to > easily handle this gracefully. Precisely. I'd love to see a "callable" type hint too. And a "scalar" one while = we're at it ;) David --Apple-Mail-23-601264797 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIMZDCCBW4w ggRWoAMCAQICECzy3OO4bIaKwclpYXzU0GAwDQYJKoZIhvcNAQEFBQAwgd0xCzAJBgNVBAYTAlVT MRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjEfMB0GA1UECxMWVmVyaVNpZ24gVHJ1c3QgTmV0d29y azE7MDkGA1UECxMyVGVybXMgb2YgdXNlIGF0IGh0dHBzOi8vd3d3LnZlcmlzaWduLmNvbS9ycGEg KGMpMDkxHjAcBgNVBAsTFVBlcnNvbmEgTm90IFZhbGlkYXRlZDE3MDUGA1UEAxMuVmVyaVNpZ24g Q2xhc3MgMSBJbmRpdmlkdWFsIFN1YnNjcmliZXIgQ0EgLSBHMzAeFw0xMDEwMTQwMDAwMDBaFw0x MTEwMTUyMzU5NTlaMIIBGzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xHzAdBgNVBAsTFlZlcmlT aWduIFRydXN0IE5ldHdvcmsxRjBEBgNVBAsTPXd3dy52ZXJpc2lnbi5jb20vcmVwb3NpdG9yeS9S UEEgSW5jb3JwLiBieSBSZWYuLExJQUIuTFREKGMpOTgxHjAcBgNVBAsTFVBlcnNvbmEgTm90IFZh bGlkYXRlZDEzMDEGA1UECxMqRGlnaXRhbCBJRCBDbGFzcyAxIC0gTmV0c2NhcGUgRnVsbCBTZXJ2 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