/* * Copyright (c) 2021, Linus Groh * * SPDX-License-Identifier: BSD-2-Clause */ #include #include #include #include namespace JS::Temporal { // 8.1 The Temporal.Instant Constructor, https://tc39.es/proposal-temporal/#sec-temporal-instant-constructor InstantConstructor::InstantConstructor(GlobalObject& global_object) : NativeFunction(vm().names.Instant.as_string(), *global_object.function_prototype()) { } void InstantConstructor::initialize(GlobalObject& global_object) { NativeFunction::initialize(global_object); auto& vm = this->vm(); // 8.2.1 Temporal.Instant.prototype, https://tc39.es/proposal-temporal/#sec-temporal-instant-prototype define_direct_property(vm.names.prototype, global_object.temporal_instant_prototype(), 0); u8 attr = Attribute::Writable | Attribute::Configurable; define_native_function(vm.names.fromEpochSeconds, from_epoch_seconds, 1, attr); define_direct_property(vm.names.length, Value(1), Attribute::Configurable); } // 8.1.1 Temporal.Instant ( epochNanoseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant Value InstantConstructor::call() { auto& vm = this->vm(); // 1. If NewTarget is undefined, then // a. Throw a TypeError exception. vm.throw_exception(global_object(), ErrorType::ConstructorWithoutNew, "Temporal.Instant"); return {}; } // 8.1.1 Temporal.Instant ( epochNanoseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant Value InstantConstructor::construct(FunctionObject& new_target) { auto& vm = this->vm(); auto& global_object = this->global_object(); // 2. Let epochNanoseconds be ? ToBigInt(epochNanoseconds). auto* epoch_nanoseconds = vm.argument(0).to_bigint(global_object); if (vm.exception()) return {}; // 3. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception. if (!is_valid_epoch_nanoseconds(*epoch_nanoseconds)) { vm.throw_exception(global_object, ErrorType::TemporalInvalidEpochNanoseconds); return {}; } // 4. Return ? CreateTemporalInstant(epochNanoseconds, NewTarget). return create_temporal_instant(global_object, *epoch_nanoseconds, &new_target); } // 8.2.3 Temporal.Instant.fromEpochSeconds ( epochSeconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant.fromepochseconds JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from_epoch_seconds) { // 1. Set epochSeconds to ? ToNumber(epochSeconds). auto epoch_seconds_value = vm.argument(0).to_number(global_object); if (vm.exception()) return {}; // 2. Set epochSeconds to ? NumberToBigInt(epochSeconds). auto* epoch_seconds = number_to_bigint(global_object, epoch_seconds_value); if (vm.exception()) return {}; // 3. Let epochNanoseconds be epochSeconds × 10^9ℤ. auto* epoch_nanoseconds = js_bigint(vm.heap(), epoch_seconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000'000'000 })); // 4. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception. if (!is_valid_epoch_nanoseconds(*epoch_nanoseconds)) { vm.throw_exception(global_object, ErrorType::TemporalInvalidEpochNanoseconds); return {}; } // 5. Return ? CreateTemporalInstant(epochNanoseconds). return create_temporal_instant(global_object, *epoch_nanoseconds); } }