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LibJS: Implement Intl.DateTimeFormat.prototype.formatToParts
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@ -6,6 +6,7 @@
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#include <AK/NumericLimits.h>
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/Date.h>
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#include <LibJS/Runtime/Intl/DateTimeFormat.h>
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#include <LibJS/Runtime/Intl/NumberFormat.h>
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@ -1066,6 +1067,42 @@ ThrowCompletionOr<String> format_date_time(GlobalObject& global_object, DateTime
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return result.build();
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}
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// 11.1.10 FormatDateTimeToParts ( dateTimeFormat, x ), https://tc39.es/ecma402/#sec-formatdatetimetoparts
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ThrowCompletionOr<Array*> format_date_time_to_parts(GlobalObject& global_object, DateTimeFormat& date_time_format, Value time)
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{
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auto& vm = global_object.vm();
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// 1. Let parts be ? PartitionDateTimePattern(dateTimeFormat, x).
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auto parts = TRY(partition_date_time_pattern(global_object, date_time_format, time));
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// 2. Let result be ArrayCreate(0).
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auto* result = MUST(Array::create(global_object, 0));
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// 3. Let n be 0.
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size_t n = 0;
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// 4. For each Record { [[Type]], [[Value]] } part in parts, do
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for (auto& part : parts) {
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// a. Let O be OrdinaryObjectCreate(%Object.prototype%).
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auto* object = Object::create(global_object, global_object.object_prototype());
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// b. Perform ! CreateDataPropertyOrThrow(O, "type", part.[[Type]]).
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MUST(object->create_data_property_or_throw(vm.names.type, js_string(vm, part.type)));
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// c. Perform ! CreateDataPropertyOrThrow(O, "value", part.[[Value]]).
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MUST(object->create_data_property_or_throw(vm.names.value, js_string(vm, move(part.value))));
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// d. Perform ! CreateDataProperty(result, ! ToString(n), O).
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MUST(result->create_data_property_or_throw(n, object));
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// e. Increment n by 1.
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++n;
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}
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// 5. Return result.
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return result;
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}
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// 11.1.14 ToLocalTime ( t, calendar, timeZone ), https://tc39.es/ecma402/#sec-tolocaltime
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ThrowCompletionOr<LocalTime> to_local_time(GlobalObject& global_object, double time, StringView calendar, [[maybe_unused]] StringView time_zone)
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{
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