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LibJS: Implement Promise.allSettled on the Promise constructor
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5 changed files with 266 additions and 2 deletions
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@ -151,6 +151,33 @@ static Value perform_promise_all(GlobalObject& global_object, Object& iterator_r
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});
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}
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// 27.2.4.2.1 PerformPromiseAllSettled ( iteratorRecord, constructor, resultCapability, promiseResolve ), https://tc39.es/ecma262/#sec-performpromiseallsettled
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static Value perform_promise_all_settled(GlobalObject& global_object, Object& iterator_record, Value constructor, PromiseCapability result_capability, Value promise_resolve)
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{
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auto& vm = global_object.vm();
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return perform_promise_common(
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global_object, iterator_record, constructor, result_capability, promise_resolve,
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[&](PromiseValueList& values) -> Value {
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auto values_array = Array::create_from(global_object, values.values);
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(void)vm.call(*result_capability.resolve, js_undefined(), values_array);
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if (vm.exception())
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return {};
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return result_capability.promise;
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},
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[&](PromiseValueList& values, RemainingElements& remaining_elements_count, Value next_promise, size_t index) {
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auto* on_fulfilled = PromiseAllSettledResolveElementFunction::create(global_object, index, values, result_capability, remaining_elements_count);
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on_fulfilled->define_direct_property(vm.names.name, js_string(vm, String::empty()), Attribute::Configurable);
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auto* on_rejected = PromiseAllSettledRejectElementFunction::create(global_object, index, values, result_capability, remaining_elements_count);
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on_rejected->define_direct_property(vm.names.name, js_string(vm, String::empty()), Attribute::Configurable);
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(void)next_promise.invoke(global_object, vm.names.then, on_fulfilled, on_rejected);
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});
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}
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// 27.2.4.3.1 PerformPromiseAny ( iteratorRecord, constructor, resultCapability, promiseResolve ), https://tc39.es/ecma262/#sec-performpromiseany
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static Value perform_promise_any(GlobalObject& global_object, Object& iterator_record, Value constructor, PromiseCapability result_capability, Value promise_resolve)
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{
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@ -190,9 +217,9 @@ void PromiseConstructor::initialize(GlobalObject& global_object)
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(vm.names.all, all, 1, attr);
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define_native_function(vm.names.allSettled, all_settled, 1, attr);
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define_native_function(vm.names.any, any, 1, attr);
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// TODO: Implement these functions below and uncomment this.
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// define_native_function(vm.names.allSettled, all_settled, 1, attr);
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// define_native_function(vm.names.race, race, 1, attr);
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define_native_function(vm.names.reject, reject, 1, attr);
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define_native_function(vm.names.resolve, resolve, 1, attr);
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@ -271,7 +298,32 @@ JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::all)
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// 27.2.4.2 Promise.allSettled ( iterable ), https://tc39.es/ecma262/#sec-promise.allsettled
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JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::all_settled)
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{
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TODO();
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auto* constructor = vm.this_value(global_object).to_object(global_object);
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if (!constructor)
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return {};
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auto promise_capability = new_promise_capability(global_object, constructor);
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if (vm.exception())
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return {};
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auto promise_resolve = get_promise_resolve(global_object, constructor);
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if (auto abrupt = if_abrupt_reject_promise(global_object, promise_resolve, promise_capability); abrupt.has_value())
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return abrupt.value();
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auto iterator_record = get_iterator(global_object, vm.argument(0));
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if (auto abrupt = if_abrupt_reject_promise(global_object, iterator_record, promise_capability); abrupt.has_value())
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return abrupt.value();
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auto result = perform_promise_all_settled(global_object, *iterator_record, constructor, promise_capability, promise_resolve);
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if (vm.exception()) {
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if (!iterator_record_is_complete(global_object, *iterator_record))
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iterator_close(*iterator_record);
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auto abrupt = if_abrupt_reject_promise(global_object, result, promise_capability);
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return abrupt.value();
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}
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return result;
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}
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// 27.2.4.3 Promise.any ( iterable ), https://tc39.es/ecma262/#sec-promise.any
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