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Various borrow hazard fixes (#33133)

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* Reduce the scope of the document tag map borrow.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Reduce scope of borrow when finishing a Response.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Avoid creating a File object while borrowing FormData's data.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Prevent the GC from seeing an uninitialized window proxy slot.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

---------

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
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Josh Matthews 2024-08-20 12:06:24 -04:00 • committed by GitHub
parent c00cd1326a
commit bc5235827f
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4 changed files with 16 additions and 12 deletions
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16
components/script/dom/document.rs
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@ -4287,15 +4287,15 @@ impl DocumentMethods for Document {
// https://dom.spec.whatwg.org/#dom-document-getelementsbytagname
fn GetElementsByTagName(&self, qualified_name: DOMString) -> DomRoot<HTMLCollection> {
let qualified_name = LocalName::from(&*qualified_name);
match self.tag_map.borrow_mut().entry(qualified_name.clone()) {
Occupied(entry) => DomRoot::from_ref(entry.get()),
Vacant(entry) => {
let result =
HTMLCollection::by_qualified_name(&self.window, self.upcast(), qualified_name);
entry.insert(Dom::from_ref(&*result));
result
},
if let Some(entry) = self.tag_map.borrow_mut().get(&qualified_name) {
return DomRoot::from_ref(entry);
}
let result =
HTMLCollection::by_qualified_name(&self.window, self.upcast(), qualified_name.clone());
self.tag_map
.borrow_mut()
.insert(qualified_name, Dom::from_ref(&*result));
result
}
// https://dom.spec.whatwg.org/#dom-document-getelementsbytagnamens