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LibWeb: Implement the CrossOriginOwnPropertyKeys AO

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This commit is contained in:
Linus Groh 2022-03-05 23:05:04 +01:00
parent c8a2fc09b8
commit 5dabdcccf7
2 changed files with 22 additions and 0 deletions
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21
Userland/Libraries/LibWeb/Bindings/CrossOriginAbstractOperations.cpp
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@ -220,4 +220,25 @@ JS::ThrowCompletionOr<bool> cross_origin_set(JS::GlobalObject& global_object, JS
return vm.throw_completion<DOMExceptionWrapper>(global_object, DOM::SecurityError::create(String::formatted("Can't set property '{}' on cross-origin object", property_key)));
}
// 7.2.3.7 CrossOriginOwnPropertyKeys ( O ), https://html.spec.whatwg.org/multipage/browsers.html#crossoriginownpropertykeys-(-o-)
JS::MarkedVector<JS::Value> cross_origin_own_property_keys(Variant<LocationObject const*, WindowObject const*> const& object)
{
auto& event_loop = HTML::main_thread_event_loop();
auto& vm = event_loop.vm();
// 1. Let keys be a new empty List.
auto keys = JS::MarkedVector<JS::Value> { vm.heap() };
// 2. For each e of CrossOriginProperties(O), append e.[[Property]] to keys.
for (auto& entry : cross_origin_properties(object))
keys.append(JS::js_string(vm, move(entry.property)));
// 3. Return the concatenation of keys and « "then", @@toStringTag, @@hasInstance, @@isConcatSpreadable ».
keys.append(JS::js_string(vm, vm.names.then.as_string()));
keys.append(vm.well_known_symbol_to_string_tag());
keys.append(vm.well_known_symbol_has_instance());
keys.append(vm.well_known_symbol_is_concat_spreadable());
return keys;
}
}