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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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12
components/script/dom/mutationobserver.rs
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@ -2,6 +2,7 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use std::cell::LazyCell;
use std::rc::Rc;
use dom_struct::dom_struct;
@ -146,7 +147,12 @@ impl MutationObserver {
}
/// <https://dom.spec.whatwg.org/#queueing-a-mutation-record>
pub(crate) fn queue_a_mutation_record(target: &Node, attr_type: Mutation) {
pub(crate) fn queue_a_mutation_record<'a, F>(
target: &Node,
attr_type: LazyCell<Mutation<'a>, F>,
) where
F: FnOnce() -> Mutation<'a>,
{
if !target.global().as_window().get_exists_mut_observer() {
return;
}
@ -165,7 +171,7 @@ impl MutationObserver {
continue;
}
match attr_type {
match *attr_type {
Mutation::Attribute {
ref name,
ref namespace,
@ -239,7 +245,7 @@ impl MutationObserver {
// Step 4
for (observer, paired_string) in interested_observers {
// Steps 4.1-4.7
let record = match attr_type {
let record = match *attr_type {
Mutation::Attribute {
ref name,
ref namespace,