Start marking functions that can transitively trigger a GC (#33144)

* Mark JS reflector wrappers as CanGc.

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

* Propagate CanGc from reflect_dom_object_with_proto.

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

* Mark DOM constructors as GC operations.

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

---------

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

1 files changed, 6 insertions, 0 deletions

diff --git a/components/script/dom/progressevent.rs b/components/script/dom/progressevent.rs
index e600d8fa17c..fe5059f3232 100644
--- a/components/script/dom/progressevent.rs
+++ b/components/script/dom/progressevent.rs
@@ -16,6 +16,7 @@ use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
 use crate::dom::event::{Event, EventBubbles, EventCancelable};
 use crate::dom::globalscope::GlobalScope;
+use crate::script_runtime::CanGc;
 
 #[dom_struct]
 pub struct ProgressEvent {
@@ -53,6 +54,7 @@ impl ProgressEvent {
             length_computable,
             loaded,
             total,
+            CanGc::note(),
         )
     }
 
@@ -66,6 +68,7 @@ impl ProgressEvent {
         length_computable: bool,
         loaded: u64,
         total: u64,
+        can_gc: CanGc,
     ) -> DomRoot<ProgressEvent> {
         let ev = reflect_dom_object_with_proto(
             Box::new(ProgressEvent::new_inherited(
@@ -75,6 +78,7 @@ impl ProgressEvent {
             )),
             global,
             proto,
+            can_gc,
         );
         {
             let event = ev.upcast::<Event>();
@@ -87,6 +91,7 @@ impl ProgressEvent {
     pub fn Constructor(
         global: &GlobalScope,
         proto: Option<HandleObject>,
+        can_gc: CanGc,
         type_: DOMString,
         init: &ProgressEventBinding::ProgressEventInit,
     ) -> Fallible<DomRoot<ProgressEvent>> {
@@ -101,6 +106,7 @@ impl ProgressEvent {
             init.lengthComputable,
             init.loaded,
             init.total,
+            can_gc,
         );
         Ok(ev)
     }