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script_bindings: Remove Cell wrapper from thread-local RootCollection. (#39043)

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This doesn't appear to make a big difference in speedometer results, but
this removes some code from the hot path of creating DomRoot values.

Before: `Score: 30.381097406624708 ± 2.0393225244958018`
After: `Score: 30.344639420871395 ± 1.9359337921154696`

Testing: Existing WPT coverage

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
This commit is contained in:
Josh Matthews 2025-08-30 15:47:26 -04:00 • committed by GitHub
parent d3c5a8ec15
commit 0481477f35
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GPG key ID: B5690EEEBB952194
6 changed files with 9 additions and 37 deletions
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5
components/script/dom/dedicatedworkerglobalscope.rs
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@ -40,7 +40,7 @@ use crate::dom::bindings::codegen::Bindings::WorkerBinding::WorkerType;
use crate::dom::bindings::error::{ErrorInfo, ErrorResult};
use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::reflector::DomGlobal;
use crate::dom::bindings::root::{DomRoot, RootCollection, ThreadLocalStackRoots};
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::str::DOMString;
use crate::dom::bindings::structuredclone;
use crate::dom::bindings::trace::{CustomTraceable, RootedTraceableBox};
@ -396,9 +396,6 @@ impl DedicatedWorkerGlobalScope {
WebViewId::install(webview_id);
}
let roots = RootCollection::new();
let _stack_roots = ThreadLocalStackRoots::new(&roots);
let WorkerScriptLoadOrigin {
referrer_url,
referrer_policy,