void
AutoJSAPI::ReportException()
{
MOZ_ASSERT(OwnsErrorReporting(), "This is not our exception to report!");
if (!HasException()) {
return;
}
// AutoJSAPI uses a JSAutoNullableCompartment, and may be in a null
// compartment when the destructor is called. However, the JS engine
// requires us to be in a compartment when we fetch the pending exception.
// In this case, we enter the privileged junk scope and don't dispatch any
// error events.
JS::Rooted<JSObject*> errorGlobal(cx(), JS::CurrentGlobalOrNull(cx()));
if (!errorGlobal)
errorGlobal = xpc::PrivilegedJunkScope();
JSAutoCompartment ac(cx(), errorGlobal);
nsCOMPtr<nsPIDOMWindow> win = xpc::WindowGlobalOrNull(errorGlobal);
JS::Rooted<JS::Value> exn(cx());
js::ErrorReport jsReport(cx());
if (StealException(&exn) && jsReport.init(cx(), exn)) {
nsRefPtr<xpc::ErrorReport> xpcReport = new xpc::ErrorReport();
xpcReport->Init(jsReport.report(), jsReport.message(),
nsContentUtils::IsCallerChrome(),
win ? win->WindowID() : 0);
if (win) {
DispatchScriptErrorEvent(win, JS_GetRuntime(cx()), xpcReport, exn);
} else {
xpcReport->LogToConsole();
}
} else {
NS_WARNING("OOMed while acquiring uncaught exception from JSAPI");
}
}
void
AutoJSAPI::ReportException()
{
MOZ_ASSERT(OwnsErrorReporting(), "This is not our exception to report!");
if (!HasException()) {
return;
}
// AutoJSAPI uses a JSAutoNullableCompartment, and may be in a null
// compartment when the destructor is called. However, the JS engine
// requires us to be in a compartment when we fetch the pending exception.
// In this case, we enter the privileged junk scope and don't dispatch any
// error events.
JS::Rooted<JSObject*> errorGlobal(cx(), JS::CurrentGlobalOrNull(cx()));
if (!errorGlobal) {
if (mIsMainThread) {
errorGlobal = xpc::PrivilegedJunkScope();
} else {
errorGlobal = workers::GetCurrentThreadWorkerGlobal();
}
}
JSAutoCompartment ac(cx(), errorGlobal);
JS::Rooted<JS::Value> exn(cx());
js::ErrorReport jsReport(cx());
if (StealException(&exn) && jsReport.init(cx(), exn)) {
if (mIsMainThread) {
RefPtr<xpc::ErrorReport> xpcReport = new xpc::ErrorReport();
RefPtr<nsGlobalWindow> win = xpc::WindowGlobalOrNull(errorGlobal);
nsPIDOMWindowInner* inner = win ? win->AsInner() : nullptr;
xpcReport->Init(jsReport.report(), jsReport.message(),
nsContentUtils::IsCallerChrome(),
inner ? inner->WindowID() : 0);
if (inner) {
DispatchScriptErrorEvent(inner, JS_GetRuntime(cx()), xpcReport, exn);
} else {
xpcReport->LogToConsole();
}
} else {
// On a worker, we just use the worker error reporting mechanism and don't
// bother with xpc::ErrorReport. This will ensure that all the right
// events (which are a lot more complicated than in the window case) get
// fired.
workers::WorkerPrivate* worker = workers::GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(worker);
MOZ_ASSERT(worker->GetJSContext() == cx());
// Before invoking ReportError, put the exception back on the context,
// because it may want to put it in its error events and has no other way
// to get hold of it. After we invoke ReportError, clear the exception on
// cx(), just in case ReportError didn't.
JS_SetPendingException(cx(), exn);
worker->ReportError(cx(), jsReport.message(), jsReport.report());
ClearException();
}
} else {
NS_WARNING("OOMed while acquiring uncaught exception from JSAPI");
ClearException();
}
}
