Generally letting proxies do more things is a good thing, but what would be the cost in optimizing JITs? It seems like e.g. making `a + b` or `a | 0` more flexible would also make them slower. Is this incorrect?
On Wed, Dec 23, 2015 at 3:23 AM, KOLANICH <[email protected]> wrote: > I dislike this proposal. > 1 It is not very good to limit overrideable operators to value classes. > 2 It is not very good to have a lot of custom operators, it will break > code readability and will allow more efficient obfuscration. > 3 I think that most of binary non-assigning operators must return a new > object and thats' why they should be not object methods, but the methods > taking 2 (or more if chained!) objects and return the result usually of > same type. > вторник, 22 декабря 2015г., 21:45 +03:00 от Sander Deryckere < > [email protected]>: > > > IMO, operator overloading is important and different enough to warrant a > separate syntax. > > But the difficulty isn't in defining the operator, but in the ambiguous > cases. Like what to do when there are 2 different types, how to make sure > certain relations will stay correct, ... > > There's a nice presentation from Brendan Eich here: > http://www.slideshare.net/BrendanEich/value-objects2 > > Regards, > Sander > > 2015-12-18 21:24 GMT+01:00 KOLANICH <[email protected] > <https://e.mail.ru/compose/?mailto=mailto%[email protected]>>: > > Hello. What do you think about overriding operators using proxies? > > For example > function A(r=""){ > this.rep=r; > return new Proxy(this,{operators:{"+":function(a,b){return new > A(a.rep+"+"+b.rep);}}}); > } > let a=new A("a"), b=new A("b"); > let c=a+b; > console.log(c.rep);//a+b > > _______________________________________________ > es-discuss mailing list > [email protected] > <https://e.mail.ru/compose/?mailto=mailto%3aes%[email protected]> > https://mail.mozilla.org/listinfo/es-discuss > > > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss > >
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