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deps: V8: backport 0aa622e12893 #49419
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Review requested:
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For v20.x this needs a manual non-ABI-breaking backport (probably by doing a workaround to add a similarly-named method with the signature, instead of just breaking it). |
Uh-oh, this was just reverted in the upstream. I'll investigate the crash that caused the revert. Marking it as blocked for now.. |
Reland opened in the upstream: https://chromium-review.googlesource.com/c/v8/v8/+/4834471 |
Original commit message: Reland "[api] allow v8::Data as internal field" This is a reland of commit 0aa622e12893e9921c01a34ce9507b544e599c4a The original patch tried to run a test that calls exit() in the fatal error handler in parallel, which would not work. This marked the test with TEST() to avoid running it in parallel. Original change's description: > [api] allow v8::Data as internal field > > Previously only v8::Value can be stored as internal fields. > In some cases, however, it's necessary for the embedder to > tie the lifetime of a v8::Data with the lifetime of a > JS object, and that v8::Data may not be a v8::Value, as > it can be something returned from the V8 API. One way to > keep the v8::Data alive may be to use a v8::Persistent<v8::Data> > but that can easily lead to leaks. > > This patch changes v8::Object::GetInternalField() and > v8::Object::SetInernalField() to accept v8::Data instead of just > v8::Value, so that v8::Data can kept alive by a JS object in > a way that the GC can be aware of to address this problem. > This is a breaking change for embedders > using v8::Object::GetInternalField() as it changes the return > type. Since most v8::Value subtypes only support direct casts > from v8::Value but not v8::Data, calls like > > object->GetInternalField(index).As<v8::External>() > > needs to be updated to cast the value to v8::Value first: > > object->GetInternalField(index).As<v8::Value>().As<v8::External>() > > Bug: v8:14120 > Change-Id: I731c958d1756b9d5ee4a3e78813416cd60d1b7ca > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4707972 > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Commit-Queue: Joyee Cheung <joyee@igalia.com> > Cr-Commit-Position: refs/heads/main@{#89718} Bug: v8:14120 Change-Id: I3e45d09b5c300d5eefc73e380ef21ac2bd61760c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4834471 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/main@{#89824} Refs: v8/v8@93b1a74
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Updated to backport the reland instead - it's been in V8 main branch for a few days, should be safe to merge back now. |
Landed in f970087 |
Original commit message: Reland "[api] allow v8::Data as internal field" This is a reland of commit 0aa622e12893e9921c01a34ce9507b544e599c4a The original patch tried to run a test that calls exit() in the fatal error handler in parallel, which would not work. This marked the test with TEST() to avoid running it in parallel. Original change's description: > [api] allow v8::Data as internal field > > Previously only v8::Value can be stored as internal fields. > In some cases, however, it's necessary for the embedder to > tie the lifetime of a v8::Data with the lifetime of a > JS object, and that v8::Data may not be a v8::Value, as > it can be something returned from the V8 API. One way to > keep the v8::Data alive may be to use a v8::Persistent<v8::Data> > but that can easily lead to leaks. > > This patch changes v8::Object::GetInternalField() and > v8::Object::SetInernalField() to accept v8::Data instead of just > v8::Value, so that v8::Data can kept alive by a JS object in > a way that the GC can be aware of to address this problem. > This is a breaking change for embedders > using v8::Object::GetInternalField() as it changes the return > type. Since most v8::Value subtypes only support direct casts > from v8::Value but not v8::Data, calls like > > object->GetInternalField(index).As<v8::External>() > > needs to be updated to cast the value to v8::Value first: > > object->GetInternalField(index).As<v8::Value>().As<v8::External>() > > Bug: v8:14120 > Change-Id: I731c958d1756b9d5ee4a3e78813416cd60d1b7ca > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4707972 > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Commit-Queue: Joyee Cheung <joyee@igalia.com> > Cr-Commit-Position: refs/heads/main@{#89718} Bug: v8:14120 Change-Id: I3e45d09b5c300d5eefc73e380ef21ac2bd61760c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4834471 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/main@{#89824} Refs: v8/v8@93b1a74 PR-URL: nodejs#49419 Refs: v8/v8@0aa622e Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Original commit message: Reland "[api] allow v8::Data as internal field" This is a reland of commit 0aa622e12893e9921c01a34ce9507b544e599c4a The original patch tried to run a test that calls exit() in the fatal error handler in parallel, which would not work. This marked the test with TEST() to avoid running it in parallel. Original change's description: > [api] allow v8::Data as internal field > > Previously only v8::Value can be stored as internal fields. > In some cases, however, it's necessary for the embedder to > tie the lifetime of a v8::Data with the lifetime of a > JS object, and that v8::Data may not be a v8::Value, as > it can be something returned from the V8 API. One way to > keep the v8::Data alive may be to use a v8::Persistent<v8::Data> > but that can easily lead to leaks. > > This patch changes v8::Object::GetInternalField() and > v8::Object::SetInernalField() to accept v8::Data instead of just > v8::Value, so that v8::Data can kept alive by a JS object in > a way that the GC can be aware of to address this problem. > This is a breaking change for embedders > using v8::Object::GetInternalField() as it changes the return > type. Since most v8::Value subtypes only support direct casts > from v8::Value but not v8::Data, calls like > > object->GetInternalField(index).As<v8::External>() > > needs to be updated to cast the value to v8::Value first: > > object->GetInternalField(index).As<v8::Value>().As<v8::External>() > > Bug: v8:14120 > Change-Id: I731c958d1756b9d5ee4a3e78813416cd60d1b7ca > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4707972 > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Commit-Queue: Joyee Cheung <joyee@igalia.com> > Cr-Commit-Position: refs/heads/main@{#89718} Bug: v8:14120 Change-Id: I3e45d09b5c300d5eefc73e380ef21ac2bd61760c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4834471 Commit-Queue: Joyee Cheung <joyee@igalia.com> Reviewed-by: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/main@{#89824} Refs: v8/v8@93b1a74 PR-URL: nodejs#49419 Refs: v8/v8@0aa622e Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Original commit message:
Refs: v8/v8@0aa622e