static bool
FilterPropertyDescriptor(JSContext* cx, HandleObject wrapper, HandleId id, JS::MutableHandle<JSPropertyDescriptor> desc)
{
MOZ_ASSERT(!JS_IsExceptionPending(cx));
bool getAllowed = Policy::check(cx, wrapper, id, Wrapper::GET);
if (JS_IsExceptionPending(cx))
return false;
bool setAllowed = Policy::check(cx, wrapper, id, Wrapper::SET);
if (JS_IsExceptionPending(cx))
return false;
MOZ_ASSERT(getAllowed || setAllowed,
"Filtering policy should not allow GET_PROPERTY_DESCRIPTOR in this case");
if (!desc.hasGetterOrSetter()) {
// Handle value properties.
if (!getAllowed)
desc.value().setUndefined();
} else {
// Handle accessor properties.
MOZ_ASSERT(desc.value().isUndefined());
if (!getAllowed)
desc.setGetter(nullptr);
if (!setAllowed)
desc.setSetter(nullptr);
}
return true;
}
