Re: Design by Contract

On Fri, Feb 6, 2015 at 9:17 PM, François Laupretre <francois@tekwire.net> wrote: >> De : yohgaki@gmail.com [mailto:yohgaki@gmail.com] De la part de Yasuo Ohgaki > >> Personally, backward compatibility is not too important. >> PHP5 is dead by PHP 7.2 release... This is the reason why. >> It's only 3 years later, only 2 years later after PHP 7.0 release. > > That's where we disagree, as I think it's most important. > > Thinking that PHP 5 is dead in 3 years is extremely naïve IMO. You probably didn't live > the PHP 4/5 migration but I guess we won't have more than 30 % of production servers under PHP > 7 in 2018, just due to the delays of distros, hosting companies, and others. > > Now, suppose you're distributing a library or a framework, like Symfony, Doctrine, etc. > Someone tells you : "Here's the new DbC feature. You can use it but this implies splitting > your code to two independent branches and maintain them in parallel until you have no PHP 5 customer > anymore.". What do you think you'll do (or won't do) ? > > @Pierre,@Dmitry : you have a better vision than mine on the migration process. What's your > opinion on forcing software developers to maintain two separate branches ? From a SemVer point of view, two branches are the worst thing we could do. The same applies to extensions btw. Cheers, -- Pierre @pierrejoye | http://www.libgd.org