3916401e4b
This reverts commit14108f4c2e. Reason for revert: Not the culprit for Canary microtask crashes Original change's description: > [builtins] Mega-revert to address the Dev blocker in crbug.com/808911. > > - Revert "[builtins] Save one word in contexts for Promise.all." > This reverts commit7632da067b. > - Revert "[builtins] Also use the Promise#then protector for Promise#finally()." > This reverts commitd4f072ced3. > - Revert "[builtins] Don't mess with entered context for MicrotaskCallbacks." > This reverts commit6703dacdd6. > - Revert "[debugger] Properly deal with settled promises in catch prediction." > This reverts commit40dd065823. > - Revert "[builtins] Widen the fast-path for Promise builtins." > This reverts commitdb0556b7e8. > - Revert "[builtins] Unify PerformPromiseThen and optimize it with TurboFan." > This reverts commita582199c5e. > - Revert "[builtins] Remove obsolete PromiseBuiltinsAssembler::AppendPromiseCallback." > This reverts commit6bf8885290. > - Revert "[builtins] Turn NewPromiseCapability into a proper builtin." > This reverts commit313b490ddd. > - Revert "[builtins] Inline InternalPromiseThen into it's only caller" > This reverts commitf7bd6a2fd6. > - Revert "[builtins] Implement Promise#catch by really calling into Promise#then." > This reverts commitb23b098fa0. > - Revert "[promise] Remove incorrect fast path" > This reverts commit0f6eafe855. > - Revert "[builtins] Squeeze JSPromise::result and JSPromise::reactions into a single field." > This reverts commit8a677a2831. > - Revert "[builtins] Refactor promises to reduce GC overhead." > This reverts commit8e7737cb58. > > Tbr: hpayer@chromium.org > Bug: chromium:800651, chromium:808911, v8:5691, v8:7253 > Change-Id: I8c8ea5ed32ed62f6cd8b0d027a3707ddd891e5f1 > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Reviewed-on: https://chromium-review.googlesource.com/906991 > Commit-Queue: Yang Guo <yangguo@chromium.org> > Commit-Queue: Adam Klein <adamk@chromium.org> > Reviewed-by: Adam Klein <adamk@chromium.org> > Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> > Cr-Commit-Position: refs/heads/master@{#51158} Change-Id: I09d958cbebd635a325809072a290f2f53df8c5d4 Tbr: adamk@chromium.org,yangguo@chromium.org,bmeurer@chromium.org Bug: chromium:800651, chromium:808911, v8:5691, v8:7253 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/908988 Reviewed-by: Adam Klein <adamk@chromium.org> Commit-Queue: Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/master@{#51181}
24 lines
837 B
JavaScript
24 lines
837 B
JavaScript
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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// Flags: --allow-natives-syntax
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var log = "";
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var result;
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Promise.resolve()
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.then(() => log += "|turn1")
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.then(() => log += "|turn2")
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.then(() => log += "|turn3")
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.then(() => log += "|turn4")
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.then(() => result = "|start|turn1|fast-resolve|turn2|turn3|slow-resolve|turn4\n"+log)
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.catch(e => print("ERROR", e));
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Promise.resolve(Promise.resolve()).then(() => log += "|fast-resolve");
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(class extends Promise {}).resolve(Promise.resolve()).then(() => log += "|slow-resolve");
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log += "|start";
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%RunMicrotasks();
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assertEquals("|start|turn1|fast-resolve|turn2|turn3|slow-resolve|turn4\n\
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|start|turn1|fast-resolve|turn2|turn3|slow-resolve|turn4", result);
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