Combine JSFunction lazy_ / script_ fields
Categories
(Core :: JavaScript Engine, task, P1)
Tracking
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| firefox72 | --- | fixed |
People
(Reporter: tcampbell, Assigned: tcampbell)
References
Details
Attachments
(3 files)
Use js::BaseScript* as a common field for LazyScript and JSScript in JSFunction. This is a precursor to merging the two types.
The union handles barriers manually and there is a bit of trickiness to preserve here. Remove unecessary accessors like JSFunction::setScript() so there is less barrier code to reason about.
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Comment 1•1 year ago
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Instead, use JSFunction::maybeCanonicalFunction() which better documents
why the script should already exist.
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Assignee | |
Comment 2•1 year ago
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The LazyScript -> JSScript link is already set during
JSScript::fullyInitFromEmitter.
Depends on D50718
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Comment 3•1 year ago
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Store js::BaseScript* to unify both the script_ and lazy_ fields of
JSFunction. Remove the mutableScript() and setScript() accessors and
make manual barriers more consistent.
Depends on D50719
Pushed by tcampbell@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/93cc053b18b9 Remove JSFunction::existingScriptNonDelazifying() r=jandem https://hg.mozilla.org/integration/autoland/rev/a9d765100908 Remove redundant initScript call in DelazifyCanonicalScriptedFunction r=jandem https://hg.mozilla.org/integration/autoland/rev/e53af14c6089 Unify JSFunction script_/lazy_ fields r=jandem
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Comment 5•1 year ago
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| bugherder | ||
https://hg.mozilla.org/mozilla-central/rev/93cc053b18b9
https://hg.mozilla.org/mozilla-central/rev/a9d765100908
https://hg.mozilla.org/mozilla-central/rev/e53af14c6089
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Comment 6•1 year ago
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| bugherderlanding | ||
Description
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