diff options
3 files changed, 57 insertions, 0 deletions
diff --git a/Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.cpp b/Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.cpp index ecdd4ad969..7330973396 100644 --- a/Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.cpp +++ b/Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.cpp @@ -5,6 +5,7 @@ */ #include <AK/TypeCasts.h> +#include <LibJS/Runtime/Array.h> #include <LibJS/Runtime/GlobalObject.h> #include <LibJS/Runtime/Temporal/AbstractOperations.h> #include <LibJS/Runtime/Temporal/Calendar.h> @@ -47,6 +48,7 @@ void CalendarPrototype::initialize(GlobalObject& global_object) define_native_function(vm.names.daysInYear, days_in_year, 1, attr); define_native_function(vm.names.monthsInYear, months_in_year, 1, attr); define_native_function(vm.names.inLeapYear, in_leap_year, 1, attr); + define_native_function(vm.names.fields, fields, 1, attr); define_native_function(vm.names.toString, to_string, 0, attr); define_native_function(vm.names.toJSON, to_json, 0, attr); } @@ -446,6 +448,30 @@ JS_DEFINE_NATIVE_FUNCTION(CalendarPrototype::in_leap_year) return Value(is_iso_leap_year(iso_year(temporal_date_like.as_object()))); } +// 12.4.21 Temporal.Calendar.prototype.fields ( fields ), https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.fields +// NOTE: This is the minimum fields implementation for engines without ECMA-402. +JS_DEFINE_NATIVE_FUNCTION(CalendarPrototype::fields) +{ + auto fields = vm.argument(0); + + // 1. Let calendar be the this value. + // 2. Perform ? RequireInternalSlot(calendar, [[InitializedTemporalCalendar]]). + auto* calendar = typed_this(global_object); + if (vm.exception()) + return {}; + + // 3. Assert: calendar.[[Identifier]] is "iso8601". + VERIFY(calendar->identifier() == "iso8601"sv); + + // 4. Let fieldNames be ? IterableToListOfType(fields, ยซ String ยป). + auto field_names = iterable_to_list_of_type(global_object, fields, { OptionType::String }); + if (vm.exception()) + return {}; + + // 5. Return ! CreateArrayFromList(fieldNames). + return Array::create_from(global_object, field_names); +} + // 12.4.23 Temporal.Calendar.prototype.toString ( ), https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.tostring JS_DEFINE_NATIVE_FUNCTION(CalendarPrototype::to_string) { diff --git a/Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.h b/Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.h index c4d5a0d494..d208f73d81 100644 --- a/Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.h +++ b/Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.h @@ -34,6 +34,7 @@ private: JS_DECLARE_NATIVE_FUNCTION(days_in_year); JS_DECLARE_NATIVE_FUNCTION(months_in_year); JS_DECLARE_NATIVE_FUNCTION(in_leap_year); + JS_DECLARE_NATIVE_FUNCTION(fields); JS_DECLARE_NATIVE_FUNCTION(to_string); JS_DECLARE_NATIVE_FUNCTION(to_json); }; diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.fields.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.fields.js new file mode 100644 index 0000000000..714f978ccf --- /dev/null +++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.fields.js @@ -0,0 +1,30 @@ +describe("correct behavior", () => { + test("length is 1", () => { + expect(Temporal.Calendar.prototype.fields).toHaveLength(1); + }); + + test("basic functionality", () => { + const calendar = new Temporal.Calendar("iso8601"); + const array = ["foo", "bar", "baz"]; + const fields = calendar.fields(array); + expect(fields).toEqual(array); + expect(fields).not.toBe(array); + }); +}); + +describe("errors", () => { + test("this value must be a Temporal.Calendar object", () => { + expect(() => { + Temporal.Calendar.prototype.fields.call("foo"); + }).toThrowWithMessage(TypeError, "Not a Temporal.Calendar"); + }); + + test("iterator values must be strings", () => { + const calendar = new Temporal.Calendar("iso8601"); + for (const value of [123, null, undefined, true, {}]) { + expect(() => { + calendar.fields([value]); + }).toThrowWithMessage(TypeError, "FIXME: Add a string for this error."); + } + }); +}); |