On Wed, Aug 20, 2014 at 2:57 PM, Nikita Popov <nikita....@gmail.com> wrote:
> On Wed, Aug 20, 2014 at 3:30 PM, Paul Dragoonis <dragoo...@gmail.com> > wrote: > >> Hi Nikita, >> >> I second some of Andi's concerns about behavioural changes, some things >> working from right-to-left and not left-to-right. Are these things that we >> can adapt the AST part or tweak another part to make this more consistent >> with previous versions of PHP. Improving consistency when changing >> underlying parts is a good migration technique. Facebook done this when >> they implemented HHMV, they didn't fix bugs but made a like-for-like stable >> copy before tackling improvements. >> >> Do you feel it's an important goal to keep consistency from PHP 5.x to >> PHP 7, with regards to the behaviour of syntax parsing/behaviour, or do you >> feel that you can live with these non-BC changes? >> >> Many thanks, >> Paul >> > > Is there some *particular* change that concerns you? This is something > that needs to be decided on a case-by-case basis. The RFC contains a list > of changes. All of them are minor adjustments verging on bug fixes, which > imho are all within the bounds of reasonable changes for a major version. > However if you can provide argument why one of the listed changes is > incorrect (as in, introduces less intuitive/consistent/... behavior) or has > larger BC impact than anticipated, then I'm open to discussion that. > I will get back to you with some specific use cases that I see could be potentially problematic and non-intuitive. > > > Nikita >
