b6bef6b688
Produce JS-visible string results as UTF-16 at their source, including numeric formatting, BigInt and BigFraction formatting, URI encoding, console formatting, parser errors, regular expression errors, Intl and Temporal records, LibUnicode locale boundaries, and LibWeb bindings. Handle fractional radix formatting through the UTF-16 builder view.
75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
/*
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* Copyright (c) 2021-2026, Tim Flynn <trflynn89@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/Date.h>
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#include <LibJS/Runtime/DateConstructor.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Intl/DateTimeFormat.h>
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#include <LibJS/Runtime/Intl/DateTimeFormatFunction.h>
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#include <LibJS/Runtime/ValueInlines.h>
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namespace JS::Intl {
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GC_DEFINE_ALLOCATOR(DateTimeFormatFunction);
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// 11.5.4 DateTime Format Functions, https://tc39.es/ecma402/#sec-datetime-format-functions
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// 15.6.3 DateTime Format Functions, https://tc39.es/proposal-temporal/#sec-datetime-format-functions
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GC::Ref<DateTimeFormatFunction> DateTimeFormatFunction::create(Realm& realm, DateTimeFormat& date_time_format)
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{
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return realm.create<DateTimeFormatFunction>(date_time_format, realm.intrinsics().function_prototype());
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}
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DateTimeFormatFunction::DateTimeFormatFunction(DateTimeFormat& date_time_format, Object& prototype)
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: NativeFunction(prototype)
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, m_date_time_format(date_time_format)
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{
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}
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void DateTimeFormatFunction::initialize(Realm& realm)
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{
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auto& vm = this->vm();
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Base::initialize(realm);
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define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
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define_direct_property(vm.names.name, PrimitiveString::create(vm, Utf16String {}), Attribute::Configurable);
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}
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ThrowCompletionOr<Value> DateTimeFormatFunction::call()
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{
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auto& vm = this->vm();
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auto& realm = *vm.current_realm();
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auto date_value = vm.argument(0);
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// 1. Let dtf be F.[[DateTimeFormat]].
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// 2. Assert: Type(dtf) is Object and dtf has an [[InitializedDateTimeFormat]] internal slot.
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FormattableDateTime date { 0 };
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// 3. If date is not provided or is undefined, then
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if (date_value.is_undefined()) {
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// a. Let x be ! Call(%Date.now%, undefined).
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date = MUST(JS::call(vm, *realm.intrinsics().date_constructor_now_function(), js_undefined())).as_double();
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}
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// 4. Else,
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else {
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// a. Let x be ? ToDateTimeFormattable(date).
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date = TRY(to_date_time_formattable(vm, date_value));
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}
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// 5. Return ? FormatDateTime(dtf, x).
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auto formatted = TRY(format_date_time(vm, m_date_time_format, date));
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return PrimitiveString::create(vm, move(formatted));
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}
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void DateTimeFormatFunction::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_date_time_format);
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}
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}
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