Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:75556 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 6883 invoked from network); 15 Jul 2014 17:53:01 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 15 Jul 2014 17:53:01 -0000 Authentication-Results: pb1.pair.com smtp.mail=ajf@ajf.me; spf=pass; sender-id=pass Authentication-Results: pb1.pair.com header.from=ajf@ajf.me; sender-id=pass Received-SPF: pass (pb1.pair.com: domain ajf.me designates 192.64.116.216 as permitted sender) X-PHP-List-Original-Sender: ajf@ajf.me X-Host-Fingerprint: 192.64.116.216 imap10-3.ox.privateemail.com Received: from [192.64.116.216] ([192.64.116.216:54659] helo=imap10-3.ox.privateemail.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id 75/15-15121-C7A65C35 for ; Tue, 15 Jul 2014 13:53:00 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.privateemail.com (Postfix) with ESMTP id A3BE82400C2; Tue, 15 Jul 2014 13:52:57 -0400 (EDT) X-Virus-Scanned: Debian amavisd-new at imap10.ox.privateemail.com Received: from mail.privateemail.com ([127.0.0.1]) by localhost (imap10.ox.privateemail.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id XTapbpyqEnHm; Tue, 15 Jul 2014 13:52:57 -0400 (EDT) Received: from [192.168.0.15] (unknown [90.210.122.167]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.privateemail.com (Postfix) with ESMTPSA id 801452400C3; Tue, 15 Jul 2014 13:52:56 -0400 (EDT) Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) In-Reply-To: <53C5673D.8030201@gmail.com> Date: Tue, 15 Jul 2014 18:52:52 +0100 Cc: internals@lists.php.net Content-Transfer-Encoding: quoted-printable Message-ID: <99B9138F-3E18-4DF6-8934-DADD6C99E438@ajf.me> References: <08503591-EFC8-48E6-984E-FFC292C5EA5F@ajf.me> <16D48604-0C0A-4613-91A4-21392E3A2636@ajf.me> <53C3DB42.7090205@gmail.com> <3158105795AAC1408619EC8BA03384A93D0214F5@EXC-PUB01A.leedsmet.ac.uk> <53C5673D.8030201@gmail.com> To: Rowan Collins X-Mailer: Apple Mail (2.1878.6) Subject: Re: [PHP-DEV] [RFC] Scalar Type Hinting With Casts (re-opening) From: ajf@ajf.me (Andrea Faulds) On 15 Jul 2014, at 18:39, Rowan Collins wrote: > Ooh, skimming that, I see suggestions for prefixes and suffixes to = represent types of cast (or hint). >=20 > That fits nicely with my thoughts on making "strict cast" a = first-class citizen of the language, rather than isolating it to = function signatures, e.g.: >=20 > $foo =3D 'abc'; $foo =3D (int)$foo; // OK, evaluates to int(0) > $foo =3D 'abc'; $foo =3D (int!)$foo; // ERROR > $foo =3D '42'; $foo =3D (int!)$foo; // OK, evaluates to int(42) It=92s a shame Nikita=92s Exceptions in the Engine RFC failed, as being = able to do this would be nice: try { $foo =3D (int!)$foo; } catch (RecoverableError) { $foo =3D 1; } Perhaps some sort of similar syntax? `(int!)$foo else 0`? -- Andrea Faulds http://ajf.me/