Re: Assertions

(Stupid GMail, didn't reply automatically to the list) On Thu, Oct 17, 2013 at 3:41 PM, Michael Wallner <mike@php.net> wrote: > On 17 October 2013 15:34, Marco Schuster <marco@m-s-d.eu> wrote: > >> I'd really like to do a simple try-assert-catch instead of writing e.g. >> if(isset($_GET["foo"]) { >> throw new InvalidArgumentException('$_GET[foo] not set'); >> } >> >> which would become >> assert(isset($_GET["foo"])); >> >> If you're doing a lot of isset-checks, then the assert-way is a bit of >> an abuse of assert, but it results in far less boilerplate crap. Maybe >> there's a way that e.g. one can write assertTerminate(cond) or >> assertException(cond) to differ between the behaviors. > > I'm not sure I can follow... > > <?php > function except($assertion, $description=null) { > if (!$assertion) > throw new Exception($description); > } > > except(isset($_GET["foo"])) This forces me to write a description and essentially duplicate the assertion code, while an AssertionException already contains a meaningful message ("Assertion in foo.php:1337 failed: isset($_GET["bar"])!=TRUE"). Marco