Re: Remove $this from incompatible context

On 14 February 2015 20:03:44 GMT, Marc Bennewitz <dev@mabe.berlin> wrote: >Hi >Am 13.02.2015 um 08:48 schrieb Stanislav Malyshev: >> Hi! >> >>> there should be no bc break as the API doesn't change and the method >>> produces the exact same result as before. >> Sorry, this makes no sense to me. You claim that if you changed the >> method code to do different thing it should continue working as if >you >> didn't change it? Why? I just don't get it. >> >>> It's not a good thing to magically change the method API in base of >a >>> method body that's not port of the API. >> "magically change the method API"? What are you talking about? You >> changed the code, not magic. >> >Sorry it wasn't clear. I hope I will now: > >The static modifier for methods is part of the method signature and >method body isn't. >(That's way interfaces doesn't describe method bodies but signatures) > >The static modifier defines a method as static and therefore defines >the >method is callable using "::". More specifically, it defines that the method is *only* callable statically. There is currently no opposite keyword to say that a method can only be called non-statically, but the absence of a modifier has up until now meant that either call type is possible. An interface cannot currently forbid static calls, only the use of $this. Our choice is between keeping that ambiguity, and introducing a new rule that any method not marked static must never be called statically (with provisos for technically non-static parent:: etc). Regards, -- Rowan Collins [IMSoP]