Oh, Bluebird's `Promise.using` does that with very high certainly. The reason we introduced `using` rather than let people just use the disposer pattern is because it is very tricky to get right in userland - so the library provided it.
On Fri, Jan 6, 2017 at 2:51 AM, Isiah Meadows <[email protected]> wrote: > It'd be nice to have something like that reified into the language > somehow. I'll note that Bluebird's gotcha with `Promise.using` > multiple resources simultaneously is a huge issue, though, and it > should be avoided for anything standardized. (If one of them fail, the > rest should be closed either immediately or as soon as they are > available, to avoid resource leaks.) > ----- > > Isiah Meadows > [email protected] > > > On Mon, Jan 2, 2017 at 10:04 AM, Benjamin Gruenbaum > <[email protected]> wrote: > > And, on a similar note - a pattern has emerged in userland libraries all > > over: > > http://stackoverflow.com/questions/28915677/what-is- > the-promise-disposer-pattern > > > > _______________________________________________ > > es-discuss mailing list > > [email protected] > > https://mail.mozilla.org/listinfo/es-discuss > > >
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