Re: Brainstorming idea: inline syntax for lexical (captured) variables

On 15 March 2023 03:28:39 GMT, "Alexandru Pătrănescu" <drealecs@gmail.com> wrote: >How about first implementing use() for anonymous classes first? >Something like: > >function foo(int $outer) { > return new class() use($outer) { > public function getIt() { > return $outer; > } > }; >} I think it's a lot less clear exactly where the variable is being imported to that way. Would you still be able to overwrite $outer as a normal local variable in that function scope? Would it return to its captured value every time the function runs? It's different from capturing into a function, because you're not just adding a variable to a single existing scope. Just allowing the captured var for property initialisation would be less ambiguous, but having to list it in use() and then in the property list would be the same amount of code as you can currently get to with constructor promotion (see my first example in the thread). From what Ilija has pointed out, the implementation of actually getting the values into the right place is going to be harder than handling the syntax anyway. My current feeling is that if it's possible at all, it will end up as a shorthand for that constructor example: declaring normal properties, and populating them as the instance is initialised. Regards, -- Rowan Tommins [IMSoP]