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/* 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 std::rc::Rc;
use dom_struct::dom_struct;
use js::jsapi::{GCReason, JS_GC};
use script_bindings::reflector::Reflector;
use script_bindings::script_runtime::CanGc;
use super::globalscope::GlobalScope;
use crate::dom::bindings::codegen::Bindings::TestUtilsBinding::TestUtilsMethods;
use crate::dom::promise::Promise;
use crate::test::TrustedPromise;
#[dom_struct]
pub(crate) struct TestUtils {
reflector_: Reflector,
}
impl TestUtilsMethods<crate::DomTypeHolder> for TestUtils {
/// <https://testutils.spec.whatwg.org/#dom-testutils-gc>
#[allow(unsafe_code)]
fn Gc(global: &GlobalScope) -> Rc<Promise> {
// 1. Let p be a new promise.
let promise = Promise::new(global, CanGc::note());
let trusted = TrustedPromise::new(promise.clone());
// 2. Run the following in parallel:
// 2.1 Run implementation-defined steps to perform a garbage collection covering at least the entry Realm.
// 2.2 Resolve p.
// We need to spin the event-loop in order get the GC to actually run.
// We do this by queuing a task that calls the GC and then resolves the promise.
let task = task!(testutils_gc: move || {
unsafe {
JS_GC(*GlobalScope::get_cx(), GCReason::DOM_TESTUTILS);
}
let promise = trusted.root();
promise.resolve_native(&(), CanGc::note());
});
global
.task_manager()
.dom_manipulation_task_source()
.queue(task);
promise
}
}
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