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LibJS: Use new NativeFunction::create() in most places

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Resolves one FIXME where we can now pass a realm, and sets the length
correctly in a bunch of places that previously didn't.
Also reduces the number of "format function name string from arbitrary
PropertyKey" implementations, although two more remain present in the
AST (used with ECMAScriptFunctionObjects, which is a different beast).
This commit is contained in:
Linus Groh 2022-02-20 17:51:04 +00:00
parent e4f165d460
commit 47cdd90836
9 changed files with 98 additions and 105 deletions
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67
Userland/Libraries/LibJS/Runtime/ShadowRealm.cpp
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@ -228,44 +228,39 @@ ThrowCompletionOr<Value> shadow_realm_import_value(GlobalObject& global_object,
// NOTE: We don't support this concept yet.
// 9. Let steps be the steps of an ExportGetter function as described below.
auto steps = [string = move(export_name_string)](auto& vm, auto& global_object) -> ThrowCompletionOr<Value> {
// 1. Assert: exports is a module namespace exotic object.
VERIFY(vm.argument(0).is_object());
auto& exports = vm.argument(0).as_object();
VERIFY(is<ModuleNamespaceObject>(exports));
// 2. Let f be the active function object.
auto* function = vm.running_execution_context().function;
// 3. Let string be f.[[ExportNameString]].
// 4. Assert: Type(string) is String.
// 5. Let hasOwn be ? HasOwnProperty(exports, string).
auto has_own = TRY(exports.has_own_property(string));
// 6. If hasOwn is false, throw a TypeError exception.
if (!has_own)
return vm.template throw_completion<TypeError>(global_object, ErrorType::MissingRequiredProperty, string);
// 7. Let value be ? Get(exports, string).
auto value = TRY(exports.get(string));
// 8. Let realm be f.[[Realm]].
auto* realm = function->realm();
VERIFY(realm);
// 9. Return ? GetWrappedValue(realm, value).
return get_wrapped_value(global_object, *realm, value);
};
// 10. Let onFulfilled be ! CreateBuiltinFunction(steps, 1, "", « [[ExportNameString]] », callerRealm).
// 11. Set onFulfilled.[[ExportNameString]] to exportNameString.
// FIXME: Support passing a realm to NativeFunction::create()
(void)caller_realm;
auto* on_fulfilled = NativeFunction::create(
global_object,
"",
[string = move(export_name_string)](auto& vm, auto& global_object) -> ThrowCompletionOr<Value> {
// 1. Assert: exports is a module namespace exotic object.
VERIFY(vm.argument(0).is_object());
auto& exports = vm.argument(0).as_object();
VERIFY(is<ModuleNamespaceObject>(exports));
// 2. Let f be the active function object.
auto* function = vm.running_execution_context().function;
// 3. Let string be f.[[ExportNameString]].
// 4. Assert: Type(string) is String.
// 5. Let hasOwn be ? HasOwnProperty(exports, string).
auto has_own = TRY(exports.has_own_property(string));
// 6. If hasOwn is false, throw a TypeError exception.
if (!has_own)
return vm.template throw_completion<TypeError>(global_object, ErrorType::MissingRequiredProperty, string);
// 7. Let value be ? Get(exports, string).
auto value = TRY(exports.get(string));
// 8. Let realm be f.[[Realm]].
auto* realm = function->realm();
VERIFY(realm);
// 9. Return ? GetWrappedValue(realm, value).
return get_wrapped_value(global_object, *realm, value);
});
on_fulfilled->define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
on_fulfilled->define_direct_property(vm.names.name, js_string(vm, String::empty()), Attribute::Configurable);
auto* on_fulfilled = NativeFunction::create(global_object, move(steps), 1, "", &caller_realm);
// 12. Let promiseCapability be ! NewPromiseCapability(%Promise%).
auto promise_capability = MUST(new_promise_capability(global_object, global_object.promise_constructor()));