Re: Design by Contract

From: Date: Thu, 05 Feb 2015 11:46:16 +0000
Subject: Re: Design by Contract
References: 1 2  Groups: php.internals 
Request: Send a blank email to internals+get-81901@lists.php.net to get a copy of this message
On Thu, Feb 5, 2015 at 2:38 PM, Patrick Schaaf <php@bof.de> wrote: > Am 05.02.2015 12:14 schrieb "Dmitry Stogov" <dmitry@zend.com>: > > > > For php it may look like the following: > > > > function foo() > > require(<input-assert-expression>) > > ensure(<output-assert-expression>) > > { > > ... > > } > > > > It would require only one new reserved word "ensure". > > How would one access the function return value in the > output-assert-expression? > good point. we may use a reserved name. e.g. $result.or $return_value > And what about side effects in these expressions? Could they be suppressed > / made into errors somehow? > I afraid, we won't be able catch possible side effects of assert expressions. For now, we may just relay on user, in the same way as with assert() now. Thanks. Dmitry. > best regards > Patrick >

« previous php.internals (#81901) next »