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Use out parameter for generated methods returning JSVal (#34087)

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* Make generated bindings that return a WebIDL `any` value use out parameters.

Returning raw JSVal values makes it easier to create GC hazards in code
that calls these methods. Accepting a MutableHandle argument instead
ensures that the values are rooted by the caller.

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

* Update mozjs.

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

* Fix clippy warnings.

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

---------

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
This commit is contained in:
Josh Matthews 2024-11-05 03:29:08 -05:00 • committed by GitHub
parent 537958a3cc
commit 25a0764a37
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38 changed files with 763 additions and 515 deletions
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6
components/script/dom/promiserejectionevent.rs
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@ -8,7 +8,7 @@ use std::rc::Rc;
use dom_struct::dom_struct;
use js::jsapi::{Heap, JSObject};
use js::jsval::JSVal;
use js::rust::{HandleObject, HandleValue};
use js::rust::{HandleObject, HandleValue, MutableHandleValue};
use servo_atoms::Atom;
use crate::dom::bindings::codegen::Bindings::EventBinding::EventMethods;
@ -127,8 +127,8 @@ impl PromiseRejectionEventMethods for PromiseRejectionEvent {
}
// https://html.spec.whatwg.org/multipage/#dom-promiserejectionevent-reason
fn Reason(&self, _cx: JSContext) -> JSVal {
self.reason.get()
fn Reason(&self, _cx: JSContext, mut retval: MutableHandleValue) {
retval.set(self.reason.get())
}
// https://dom.spec.whatwg.org/#dom-event-istrusted