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`Async.jankYielder` is known to, unfortunately, cause jank by creating a lot of immediately resolved promises that must be then GCed. For a collection of 50 items, it will create 50 promises and 49 of them will immediately resolve. Instead of `Async.jankYielder`, we now have `Async.yieldState`, which simply keeps track of whether or not the caller should yield to the event loop. Two higher level looping constructs are built on top of it: * `Async.yieldingIterator`, which has been rewritten to not create extraneous promises; and * `Async.yieldingForEach`, which is a replacement for awaiting `Async.jankYielder` in a loop. Instead, it accepts the loop body as a function. Each of these can share an instance of an `Async.yieldState`, which allows an object with multiple loops to yield every N iterations overall, instead of every N iterations of each loop, which keeps the behaviour of using one `Async.jankYielders` in multiple places. Differential Revision: https://phabricator.services.mozilla.com/D26229 --HG-- extra : moz-landing-system : lando |
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| cld2 | ||
| content | ||
| test | ||
| BingTranslator.jsm | ||
| GoogleTranslator.jsm | ||
| LanguageDetector.jsm | ||
| moz.build | ||
| Translation.jsm | ||
| TranslationContentHandler.jsm | ||
| TranslationDocument.jsm | ||
| YandexTranslator.jsm | ||