• Maya Lekova's avatar
    Reland "[async] Optimize await and AsyncFromSyncIterator" · ef8c1861
    Maya Lekova authored
    This is a reland of 21c0d77e
    
    Original change's description:
    > [async] Optimize await and AsyncFromSyncIterator
    > 
    > Simplify the promise wrapping in await and
    > %AsyncFromSyncIteratorPrototype%.next/return/throw to reuse the PromiseResolve
    > primitive. Now await takes 1 tick instead of 3 on the microtask queue.
    > 
    > Change-Id: I7e99b8689eb8fcb09c48915b11c1e06684dc0f1a
    > Reviewed-on: https://chromium-review.googlesource.com/1090272
    > Commit-Queue: Maya Lekova <mslekova@chromium.org>
    > Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
    > Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
    > Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
    > Reviewed-by: Mathias Bynens <mathias@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#53853}
    
    Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
    Change-Id: Ifa5b2fb8b2fb84b635b2dc1b6455d6aaf154cbfd
    Reviewed-on: https://chromium-review.googlesource.com/1106977
    Commit-Queue: Maya Lekova <mslekova@chromium.org>
    Reviewed-by: 's avatarSathya Gunasekaran <gsathya@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#53900}
    ef8c1861
builtins-async-iterator-gen.cc 17.2 KB