resolve(..) should call a thenable's then(..) async, not sync.

[getify]

This isn't a A+ requirement, it's an ES6 requirement.

The problem is, when I "fix" this, it causes lots of other test failures. And also the A+ test suite failures are intermittently different on each run, and sometimes the runner itself crashes. So, basically, this is impossible to track down.

This may in fact be a bug in not adhering to the ES6 spec, but I don't expect to be able to fix it, at least not any time soon. Spent a whole day on it so far, and failed. That's more time than I have to devote to such things.

More info: zloirock/core-js#78

For posterity, these are the offending lines, I believe:

native-promise-only/lib/npo.src.js

Lines 155 to 158 in e18a8de

	_then.call(msg,
	function $resolve$(){ resolve.apply(def_wrapper,arguments); },
	function $reject$(){ reject.apply(def_wrapper,arguments); }
	);

I believe that call is supposed to be deferred (with schedule(..)), but that breaks everything.

[Octane]

I don't understand what the problem to call a thenable's then asynchronously.
In my implementation a thenable's then always will be called asynchronously, and it passing the Promise/A+ test suite.

Also with thenables there is another interesting issue.

[zloirock]

@Octane your issue looks similar mentioned, see where V8 get .then zloirock/core-js#78 (comment)

[getify]

I don't understand what the problem to call a thenable's then asynchronously.

The issue here is that NPO currently passes Promises/A+ when calling then(..) synchronously, but when I call it asynchronously, NPO has like 70+ test failures. I don't know why. I spent a day trying to figure it out, and failed.

[zloirock]

@getify see zloirock/core-js@17300b0 , NPO with same fix passes Promises/A+ test case. I can add PR.

[getify]

<3 <3 Huge thanks @zloirock!

I've packaged and released NPO 0.8.0-a with this fix.