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Always pass InRealm to GlobalScope::from_context to avoid getting null global

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This commit is contained in:
CYBAI 2020-01-24 12:43:49 +09:00
parent 795dab71ff
commit 403ffcf1eb
16 changed files with 79 additions and 61 deletions
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8
components/script/dom/serviceworkerglobalscope.rs
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@ -22,7 +22,7 @@ use crate::dom::messageevent::MessageEvent;
use crate::dom::worker::TrustedWorkerAddress;
use crate::dom::workerglobalscope::WorkerGlobalScope;
use crate::fetch::load_whole_resource;
use crate::realms::enter_realm;
use crate::realms::{enter_realm, AlreadyInRealm, InRealm};
use crate::script_runtime::{
new_rt_and_cx, CommonScriptMsg, JSContext as SafeJSContext, Runtime, ScriptChan,
};
@ -447,8 +447,10 @@ impl ServiceWorkerGlobalScope {
#[allow(unsafe_code)]
unsafe extern "C" fn interrupt_callback(cx: *mut JSContext) -> bool {
let worker = DomRoot::downcast::<WorkerGlobalScope>(GlobalScope::from_context(cx))
.expect("global is not a worker scope");
let in_realm_proof = AlreadyInRealm::assert_for_cx(SafeJSContext::from_ptr(cx));
let global = GlobalScope::from_context(cx, InRealm::Already(&in_realm_proof));
let worker =
DomRoot::downcast::<WorkerGlobalScope>(global).expect("global is not a worker scope");
assert!(worker.is::<ServiceWorkerGlobalScope>());
// A false response causes the script to terminate