Re: [Discussion] FFI in PHP

On 08/02/17 14:54, Michał Brzuchalski wrote: > 2017-02-08 12:51 GMT+01:00 Michael Wallner <mike@php.net>: > >> >> ``` >> // https://github.com/m6w6/ext-psi#implementations >> function math\add(int $a, int $b) : int { >> let a = intval($a); >> let b = intval($b); >> return to_int(add); >> } >> ``` >> > > What is the purpose of intval call if both variables were > declared as int > already? > Also what to_int stands for if we already declared int return type? > While those type casts might seem superfluous for simple functions, marshalling between PHP and C quickly becomes complicated and requiring explicit casts just reduces the possibility of tripping points even if the types match on both sides. Omitting them wouldn't change anything internally, but just bloat the parser. -- Regards, Mike

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