mirror of
https://github.com/servo/servo.git
synced 2025-06-06 16:45:39 +00:00
3d320fa96a
* Use 2024 style edition Signed-off-by: Simon Wülker <simon.wuelker@arcor.de> * Reformat all code Signed-off-by: Simon Wülker <simon.wuelker@arcor.de> --------- Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
83 lines
2.5 KiB
Rust
83 lines
2.5 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* 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 dom_struct::dom_struct;
|
|
use js::jsapi::JSContext;
|
|
use js::rust::HandleValue;
|
|
use malloc_size_of::MallocSizeOf;
|
|
|
|
use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
|
|
use crate::dom::bindings::root::DomRoot;
|
|
use crate::dom::bindings::trace::JSTraceable;
|
|
use crate::dom::globalscope::GlobalScope;
|
|
use crate::realms::InRealm;
|
|
use crate::script_runtime::{CanGc, JSContext as SafeJSContext};
|
|
|
|
/// Types that implement the `Callback` trait follow the same rooting requirements
|
|
/// as types that use the `#[dom_struct]` attribute.
|
|
/// Prefer storing `Dom<T>` members inside them instead of `DomRoot<T>`
|
|
/// to minimize redundant work by the garbage collector.
|
|
pub(crate) trait Callback: JSTraceable + MallocSizeOf {
|
|
fn callback(&self, cx: SafeJSContext, v: HandleValue, realm: InRealm, can_gc: CanGc);
|
|
}
|
|
|
|
#[dom_struct]
|
|
pub(crate) struct PromiseNativeHandler {
|
|
reflector: Reflector,
|
|
resolve: Option<Box<dyn Callback>>,
|
|
reject: Option<Box<dyn Callback>>,
|
|
}
|
|
|
|
impl PromiseNativeHandler {
|
|
pub(crate) fn new(
|
|
global: &GlobalScope,
|
|
resolve: Option<Box<dyn Callback>>,
|
|
reject: Option<Box<dyn Callback>>,
|
|
can_gc: CanGc,
|
|
) -> DomRoot<PromiseNativeHandler> {
|
|
reflect_dom_object(
|
|
Box::new(PromiseNativeHandler {
|
|
reflector: Reflector::new(),
|
|
resolve,
|
|
reject,
|
|
}),
|
|
global,
|
|
can_gc,
|
|
)
|
|
}
|
|
|
|
#[allow(unsafe_code)]
|
|
fn callback(
|
|
callback: &Option<Box<dyn Callback>>,
|
|
cx: *mut JSContext,
|
|
v: HandleValue,
|
|
realm: InRealm,
|
|
can_gc: CanGc,
|
|
) {
|
|
let cx = unsafe { SafeJSContext::from_ptr(cx) };
|
|
if let Some(ref callback) = *callback {
|
|
callback.callback(cx, v, realm, can_gc)
|
|
}
|
|
}
|
|
|
|
pub(crate) fn resolved_callback(
|
|
&self,
|
|
cx: *mut JSContext,
|
|
v: HandleValue,
|
|
realm: InRealm,
|
|
can_gc: CanGc,
|
|
) {
|
|
PromiseNativeHandler::callback(&self.resolve, cx, v, realm, can_gc)
|
|
}
|
|
|
|
pub(crate) fn rejected_callback(
|
|
&self,
|
|
cx: *mut JSContext,
|
|
v: HandleValue,
|
|
realm: InRealm,
|
|
can_gc: CanGc,
|
|
) {
|
|
PromiseNativeHandler::callback(&self.reject, cx, v, realm, can_gc)
|
|
}
|
|
}
|