Sir,I am a senior high student which comes from china.I don not know where you 
are.And Ifelt very hard to communicate with you in ENGLISH.------------------ 
???????? ------------------
??????: "Rowan Collins"<rowan.coll...@gmail.com>
????????: 2019??2??7??(??????) ????6:21
??????: "Benjamin Morel"<benjamin.mo...@gmail.com>;
????: "PHP internals"<internals@lists.php.net>;
????: Re: [PHP-DEV] Re: [RFC] [VOTE] Typed properties v2


On 06/02/2019 22:10, Benjamin Morel wrote:
> But we digress, can we focus on whether to add another isset()-like 
> construct, or a property_is_initialized() function, ideally with a 
> companion opcode to speed it up?

I apologise for the digression. However, there is some relevance, 
because asking for not just a new function, but a new opcode, suggests 
you have a use case that is both common and performance critical; 
apologies if I've missed it, but have you actually said what that use 
case is?


 > Pardon my ignorance, but what is exactly increasing the language 
complexity? Do you mean the addition of a language construct to the parser?

Notice that Nikita said "conceptual language complexity", not 
"implementation complexity" - regardless of how simple this is in 
implementation, it's one more thing to document, maintain, and answer 
questions about.


Regards,

-- 
Rowan Collins
[IMSoP]


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