Re: RFC Operator Overloading in Userspace

From: Date: Mon, 04 Jan 2016 19:39:04 +0000
Subject: Re: RFC Operator Overloading in Userspace
References: 1  Groups: php.internals 
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On Sat, 2016-01-02 at 18:14 -0800, Sara Golemon wrote: > https://wiki.php.net/rfc/operator-overloading Back in the days when I created the first implementation of operator overloading in the engine[1] I didn't see it fit for the language. Meanwhile we have more type hints and stuff making it a bit less magic. I still don't think this approach is really good. for instance we loose associativity; taking the Complex example: <?php $a = new Complex(1, 2); $b = 3; echo $a + $b; // works echo $b + $a; // will error out ?> Of course this can easily be fixed by looking at the order, at least in this simple case. In a more complex example where a function might return an integer, double or complex number this becomes more complicated. For this to work we'd need non-member functions to do this and we need function overloading ... I believe we'll only get a half-baked solution and I prefer the current state over half-baked. johannes [1] http://news.php.net/php.internals/14558

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