Re: [RFC][Under discussion] Fetch properties in const expressions

Hi Nikita > This looks like a reasonable addition. > > Could there be any expectation that if -> works, ?-> does as well? Possibly. The implementation was simple enough so I'll add support for completeness. --- Hi Côme > It is not clear to me why this allows using -> on enums but not on other objects. The RFC *does* allow using -> on all objects. From the RFC: > As mentioned, the primary motivation for this feature are enums. However, the > implementation for supporting new is identical and I don't believe > arbitrarily restricting how -> can be used in this context makes sense. > Can you clarify why the following is not allowed: > > <?php > > $a = new Thing(); > > class C > { > protected $b = $a->var; > static $staticobj = new Thing(); > function f($p = self::$staticobj->var) {} > } protected $b = $a->var; is not allowed because there can't be local variables in the context of context expressions. `function f($p = self::$staticobj->var) {}` is not allowed because static variables aren't supported in constant expressions. Your examples would already fail today without ->. Ilija