My rationale was detailed in a response to another person eariler: > But my idea was just to bring `new` and normal calls a little closer to one another. Eventually, I'd like to see if primitive wrapper types could disappear, and this is one of the areas where I'm trying to see if it's feasible to do in JS. (Wrapper types are actually a complicating factor in JS optimization and the object model in general.)
>From a reply that (I presume accidentally) missed the list, It doesn't appear to be web-compatible, so this entire discussion would qualify as moot: https://www.chromestatus.com/metrics/feature/timeline/popularity/2054 ----- Isiah Meadows [email protected] Looking for web consulting? Or a new website? Send me an email and we can get started. www.isiahmeadows.com On Fri, Apr 20, 2018 at 7:34 PM, Michael Theriot <[email protected]> wrote: > I don't understand the use case. If anything I would like it if returning an > object that fails `new Class instanceof Class` to also fail, not permit even > more oddities. > > On Thu, Apr 19, 2018 at 6:49 PM, Isiah Meadows <[email protected]> > wrote: >> >> Here's my proposal: >> >> In constructors, currently, non-objects are replaced with `this`. >> Here's what I think it should be replaced with: >> >> 1. When calling the constructor, if `undefined` is returned and >> `new.target` is not `undefined`, return `this` instead. This is for >> compatibility and ease of implementation. >> 1. When calling the constructor, if anything else is returned, return >> that value in raw form. >> >> I know this is very *likely* very breaking, but I wonder if it would >> be possible. >> >> In case you're curious what this would change in the spec, it would >> change [section 9.2.2][1], step 13.a-13.c to this: >> >> a. If result.[[Value]] is not `undefined`, return >> NormalCompletion(`result.[[Value]]`). >> b. If kind is `"base"`, return NormalCompletion(thisArgument). >> >> [1]: >> https://tc39.github.io/ecma262/#sec-ecmascript-function-objects-construct-argumentslist-newtarget >> >> ----- >> >> Isiah Meadows >> [email protected] >> >> Looking for web consulting? Or a new website? >> Send me an email and we can get started. >> www.isiahmeadows.com >> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss > > _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
