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LibJS: Implement Intl.DateTimeFormat.prototype.formatRangeToParts

This commit is contained in:
Timothy Flynn 2021-12-09 13:35:59 -05:00 committed by Linus Groh
parent 04f8fb07e1
commit 53df13fed7
6 changed files with 569 additions and 0 deletions

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@ -180,6 +180,7 @@ namespace JS {
P(format) \
P(formatMatcher) \
P(formatRange) \
P(formatRangeToParts) \
P(formatToParts) \
P(fractionalSecondDigits) \
P(freeze) \

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@ -1404,6 +1404,45 @@ ThrowCompletionOr<String> format_date_time_range(GlobalObject& global_object, Da
return result.build();
}
// 11.1.13 FormatDateTimeRangeToParts ( dateTimeFormat, x, y ), https://tc39.es/ecma402/#sec-formatdatetimerangetoparts
ThrowCompletionOr<Array*> format_date_time_range_to_parts(GlobalObject& global_object, DateTimeFormat& date_time_format, Value start, Value end)
{
auto& vm = global_object.vm();
// 1. Let parts be ? PartitionDateTimeRangePattern(dateTimeFormat, x, y).
auto parts = TRY(partition_date_time_range_pattern(global_object, date_time_format, start, end));
// 2. Let result be ArrayCreate(0).
auto* result = MUST(Array::create(global_object, 0));
// 3. Let n be 0.
size_t n = 0;
// 4. For each Record { [[Type]], [[Value]], [[Source]] } part in parts, do
for (auto& part : parts) {
// a. Let O be OrdinaryObjectCreate(%ObjectPrototype%).
auto* object = Object::create(global_object, global_object.object_prototype());
// b. Perform ! CreateDataPropertyOrThrow(O, "type", part.[[Type]]).
MUST(object->create_data_property_or_throw(vm.names.type, js_string(vm, part.type)));
// c. Perform ! CreateDataPropertyOrThrow(O, "value", part.[[Value]]).
MUST(object->create_data_property_or_throw(vm.names.value, js_string(vm, move(part.value))));
// d. Perform ! CreateDataPropertyOrThrow(O, "source", part.[[Source]]).
MUST(object->create_data_property_or_throw(vm.names.source, js_string(vm, part.source)));
// e. Perform ! CreateDataProperty(result, ! ToString(n), O).
MUST(result->create_data_property_or_throw(n, object));
// f. Increment n by 1.
++n;
}
// 5. Return result.
return result;
}
// 11.1.14 ToLocalTime ( t, calendar, timeZone ), https://tc39.es/ecma402/#sec-tolocaltime
ThrowCompletionOr<LocalTime> to_local_time(GlobalObject& global_object, double time, StringView calendar, [[maybe_unused]] StringView time_zone)
{

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@ -205,6 +205,7 @@ ThrowCompletionOr<String> format_date_time(GlobalObject& global_object, DateTime
ThrowCompletionOr<Array*> format_date_time_to_parts(GlobalObject& global_object, DateTimeFormat& date_time_format, Value time);
ThrowCompletionOr<Vector<PatternPartitionWithSource>> partition_date_time_range_pattern(GlobalObject& global_object, DateTimeFormat& date_time_format, Value start, Value end);
ThrowCompletionOr<String> format_date_time_range(GlobalObject& global_object, DateTimeFormat& date_time_format, Value start, Value end);
ThrowCompletionOr<Array*> format_date_time_range_to_parts(GlobalObject& global_object, DateTimeFormat& date_time_format, Value start, Value end);
ThrowCompletionOr<LocalTime> to_local_time(GlobalObject& global_object, double time, StringView calendar, StringView time_zone);
template<typename Callback>

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@ -33,6 +33,7 @@ void DateTimeFormatPrototype::initialize(GlobalObject& global_object)
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.formatToParts, format_to_parts, 1, attr);
define_native_function(vm.names.formatRange, format_range, 2, attr);
define_native_function(vm.names.formatRangeToParts, format_range_to_parts, 2, attr);
define_native_function(vm.names.resolvedOptions, resolved_options, 0, attr);
}
@ -110,6 +111,32 @@ JS_DEFINE_NATIVE_FUNCTION(DateTimeFormatPrototype::format_range)
return js_string(vm, move(formatted));
}
// 11.4.6 Intl.DateTimeFormat.prototype.formatRangeToParts ( startDate, endDate ), https://tc39.es/ecma402/#sec-Intl.DateTimeFormat.prototype.formatRangeToParts
JS_DEFINE_NATIVE_FUNCTION(DateTimeFormatPrototype::format_range_to_parts)
{
auto start_date = vm.argument(0);
auto end_date = vm.argument(1);
// 1. Let dtf be this value.
// 2. Perform ? RequireInternalSlot(dtf, [[InitializedDateTimeFormat]]).
auto* date_time_format = TRY(typed_this_object(global_object));
// 3. If startDate is undefined or endDate is undefined, throw a TypeError exception.
if (start_date.is_undefined())
return vm.throw_completion<TypeError>(global_object, ErrorType::IsUndefined, "startDate"sv);
if (end_date.is_undefined())
return vm.throw_completion<TypeError>(global_object, ErrorType::IsUndefined, "endDate"sv);
// 4. Let x be ? ToNumber(startDate).
start_date = TRY(start_date.to_number(global_object));
// 5. Let y be ? ToNumber(endDate).
end_date = TRY(end_date.to_number(global_object));
// 6. Return ? FormatDateTimeRangeToParts(dtf, x, y).
return TRY(format_date_time_range_to_parts(global_object, *date_time_format, start_date, end_date));
}
// 11.4.7 Intl.DateTimeFormat.prototype.resolvedOptions ( ), https://tc39.es/ecma402/#sec-intl.datetimeformat.prototype.resolvedoptions
JS_DEFINE_NATIVE_FUNCTION(DateTimeFormatPrototype::resolved_options)
{

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@ -23,6 +23,7 @@ private:
JS_DECLARE_NATIVE_FUNCTION(format);
JS_DECLARE_NATIVE_FUNCTION(format_to_parts);
JS_DECLARE_NATIVE_FUNCTION(format_range);
JS_DECLARE_NATIVE_FUNCTION(format_range_to_parts);
JS_DECLARE_NATIVE_FUNCTION(resolved_options);
};