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Issue #2089 - Avoid copying/recreating iterator result, AsyncGeneratorRequest and GeneratorObject expression stacks

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Based-on: m-c 1394682,1410283,1396499
This commit is contained in:
Martok 2023-01-21 22:21:45 +01:00 • committed by roytam1
commit ece0496985
12 changed files with 208 additions and 38 deletions
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7
js/src/builtin/Promise.cpp
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@ -2861,6 +2861,8 @@ js::AsyncGeneratorResolve(JSContext* cx, Handle<AsyncGeneratorObject*> asyncGenO
// Step 5.
RootedObject resultPromise(cx, request->promise());
asyncGenObj->cacheRequest(request);
// Step 6.
RootedObject resultObj(cx, CreateIterResultObject(cx, value, done));
if (!resultObj)
@ -2899,6 +2901,8 @@ js::AsyncGeneratorReject(JSContext* cx, Handle<AsyncGeneratorObject*> asyncGenOb
// Step 5.
RootedObject resultPromise(cx, request->promise());
asyncGenObj->cacheRequest(request);
// Step 6.
if (!RejectMaybeWrappedPromise(cx, resultPromise, exception))
return false;
@ -3036,7 +3040,8 @@ js::AsyncGeneratorEnqueue(JSContext* cx, HandleValue asyncGenVal,
// Step 5 (reordered).
Rooted<AsyncGeneratorRequest*> request(
cx, AsyncGeneratorRequest::create(cx, completionKind, completionValue, resultPromise));
cx, AsyncGeneratorObject::createRequest(cx, asyncGenObj, completionKind, completionValue,
resultPromise));
if (!request)
return false;