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Move more bindings code to script_bindings (#35578)

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* Move JSContext wrapper to script_bindings.

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

* Move webidl constant bindings to script_bindings.

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

* Move CanGc to script_bindings.

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

* Move Dom<T> and Root<T> types to script_bindings.

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

* Formatting.

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

* Extra docs for new traits.

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 2025-02-21 23:46:56 -05:00 • committed by GitHub
parent 54286229ea
commit 35f21e426b
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23 changed files with 788 additions and 641 deletions
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29
components/script_bindings/trace.rs
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@ -2,8 +2,37 @@
* 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 js::glue::CallObjectTracer;
use js::jsapi::{GCTraceKindToAscii, Heap, JSObject, JSTracer, TraceKind};
use crate::reflector::Reflector;
use crate::str::{DOMString, USVString};
/// Trace the `JSObject` held by `reflector`.
///
/// # Safety
/// tracer must point to a valid, non-null JS tracer.
#[cfg_attr(crown, allow(crown::unrooted_must_root))]
pub unsafe fn trace_reflector(tracer: *mut JSTracer, description: &str, reflector: &Reflector) {
trace!("tracing reflector {}", description);
trace_object(tracer, description, reflector.rootable())
}
/// Trace a `JSObject`.
///
/// # Safety
/// tracer must point to a valid, non-null JS tracer.
pub unsafe fn trace_object(tracer: *mut JSTracer, description: &str, obj: &Heap<*mut JSObject>) {
unsafe {
trace!("tracing {}", description);
CallObjectTracer(
tracer,
obj.ptr.get() as *mut _,
GCTraceKindToAscii(TraceKind::Object),
);
}
}
/// For use on non-jsmanaged types
/// Use #[derive(JSTraceable)] on JS managed types
macro_rules! unsafe_no_jsmanaged_fields(