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

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* 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>
This commit is contained in:
Josh Matthews 2024-08-22 07:42:36 -04:00 • committed by GitHub
parent 9a1051c917
commit 60ef6bc461
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140 changed files with 1336 additions and 304 deletions
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29
components/script/dom/imagedata.rs
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@ -21,7 +21,7 @@ use crate::dom::bindings::error::{Error, Fallible};
use crate::dom::bindings::reflector::{reflect_dom_object_with_proto, Reflector};
use crate::dom::bindings::root::DomRoot;
use crate::dom::globalscope::GlobalScope;
use crate::script_runtime::JSContext;
use crate::script_runtime::{CanGc, JSContext};
#[dom_struct]
pub struct ImageData {
@ -48,9 +48,16 @@ impl ImageData {
d.resize(len as usize, 0);
let data = CreateWith::Slice(&d[..]);
Uint8ClampedArray::create(*cx, data, js_object.handle_mut()).unwrap();
Self::new_with_jsobject(global, None, width, Some(height), js_object.get())
Self::new_with_jsobject(
global,
None,
width,
Some(height),
js_object.get(),
CanGc::note(),
)
} else {
Self::new_without_jsobject(global, None, width, height)
Self::new_without_jsobject(global, None, width, height, CanGc::note())
}
}
}
@ -62,6 +69,7 @@ impl ImageData {
width: u32,
opt_height: Option<u32>,
jsobject: *mut JSObject,
can_gc: CanGc,
) -> Fallible<DomRoot<ImageData>> {
let heap_typed_array = match new_initialized_heap_buffer_source::<ClampedU8>(
HeapTypedArrayInit::Buffer(BufferSource::Uint8ClampedArray(Heap::boxed(jsobject))),
@ -101,7 +109,9 @@ impl ImageData {
data: heap_typed_array,
});
Ok(reflect_dom_object_with_proto(imagedata, global, proto))
Ok(reflect_dom_object_with_proto(
imagedata, global, proto, can_gc,
))
}
fn new_without_jsobject(
@ -109,6 +119,7 @@ impl ImageData {
proto: Option<HandleObject>,
width: u32,
height: u32,
can_gc: CanGc,
) -> Fallible<DomRoot<ImageData>> {
if width == 0 || height == 0 {
return Err(Error::IndexSize);
@ -131,17 +142,20 @@ impl ImageData {
data: heap_typed_array,
});
Ok(reflect_dom_object_with_proto(imagedata, global, proto))
Ok(reflect_dom_object_with_proto(
imagedata, global, proto, can_gc,
))
}
/// <https://html.spec.whatwg.org/multipage/#pixel-manipulation:dom-imagedata-3>
#[allow(non_snake_case)]
pub fn Constructor(
global: &GlobalScope,
proto: Option<HandleObject>,
can_gc: CanGc,
width: u32,
height: u32,
) -> Fallible<DomRoot<Self>> {
Self::new_without_jsobject(global, proto, width, height)
Self::new_without_jsobject(global, proto, width, height, can_gc)
}
/// <https://html.spec.whatwg.org/multipage/#pixel-manipulation:dom-imagedata-4>
@ -150,11 +164,12 @@ impl ImageData {
cx: JSContext,
global: &GlobalScope,
proto: Option<HandleObject>,
can_gc: CanGc,
jsobject: *mut JSObject,
width: u32,
opt_height: Option<u32>,
) -> Fallible<DomRoot<Self>> {
Self::new_with_jsobject(global, proto, width, opt_height, jsobject)
Self::new_with_jsobject(global, proto, width, opt_height, jsobject, can_gc)
}
/// Nothing must change the array on the JS side while the slice is live.