Re: [VOTE] Abstract Syntax Tree

On Wed, Aug 20, 2014 at 3:30 PM, Paul Dragoonis <dragoonis@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. Nikita