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script: delay Mutation initialization (#35291)

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Signed-off-by: Euclid Ye <yezhizhenjiakang@gmail.com>
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Euclid Ye 2025-02-05 14:28:10 +08:00 • committed by GitHub
parent 503bb10c5b
commit 789736590b
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5 changed files with 31 additions and 23 deletions
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5
components/script/dom/attr.rs
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@ -3,6 +3,7 @@
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use std::borrow::ToOwned;
use std::cell::LazyCell;
use std::mem;
use devtools_traits::AttrInfo;
@ -157,11 +158,11 @@ impl Attr {
let namespace = self.namespace().clone();
let old_value = DOMString::from(&**self.value());
let new_value = DOMString::from(&*value);
let mutation = Mutation::Attribute {
let mutation = LazyCell::new(|| Mutation::Attribute {
name: name.clone(),
namespace: namespace.clone(),
old_value: Some(old_value.clone()),
};
});
MutationObserver::queue_a_mutation_record(owner.upcast::<Node>(), mutation);