Re: [RFC] Increment/Decrement Fixes

Hi Alexandru, On 2 March 2020 09:22:57 GMT+00:00, "Alexandru Pătrănescu" <drealecs@gmail.com> wrote: >For point 1 and 2, both the old and new behavior is silent. Can we >think of >a safer way to migrate? That's a very good question, and one I don't have a particularly good answer to. The problem with this kind of behaviour change is that there's no way for PHP to know whether a particular piece of code has been changed to expect the new behaviour or not, and therefore whether to raise a deprecation notice. An opt-in notice on *all* usages could allow the user to build up a list of places in their code to check, but they'd still need to manually track which they'd already looked at, so I'm not sure how useful it would be. What I will look into is how well static analysis tools such as PHPStan and Psalm could build a similar list, as I think that's generally a more useful approach. Regards, -- Rowan Tommins [IMSoP]