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LibJS: Fix production for time zone name in time zone strings

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This is a normative change in the Temporal spec.

See:
- caf013a
- fb7cfa6
This commit is contained in:
Linus Groh 2022-06-27 23:18:10 +01:00
parent f5669a1373
commit 3720f4bd8f
5 changed files with 11 additions and 29 deletions
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16
Userland/Libraries/LibJS/Runtime/Temporal/TimeZone.cpp
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@ -449,25 +449,13 @@ ThrowCompletionOr<Object*> to_temporal_time_zone(GlobalObject& global_object, Va
// 3. Let parseResult be ? ParseTemporalTimeZoneString(identifier).
auto parse_result = TRY(parse_temporal_time_zone_string(global_object, identifier));
// TODO: This currently cannot be tested as ParseTemporalTimeZoneString only considers
// TimeZoneIANAName for the returned [[Name]] slot, not TimeZoneUTCOffsetName.
// So when we provide a numeric time zone offset, this branch won't be executed,
// and if we provide an IANA name, it won't be a valid TimeZoneNumericUTCOffset.
// This should be fixed by: https://github.com/tc39/proposal-temporal/pull/2200
// 4. If parseResult.[[Name]] is not undefined, then
if (parse_result.name.has_value()) {
// a. Let name be parseResult.[[Name]].
auto name = parse_result.name.release_value();
// b. If ParseText(StringToCodePoints(name, TimeZoneNumericUTCOffset)) is not a List of errors, then
if (is_valid_time_zone_numeric_utc_offset_syntax(name)) {
// i. If parseResult.[[OffsetString]] is not undefined, and ! ParseTimeZoneOffsetString(parseResult.[[OffsetString]]) ≠ ! ParseTimeZoneOffsetString(name), throw a RangeError exception.
if (parse_result.offset_string.has_value() && (MUST(parse_time_zone_offset_string(global_object, *parse_result.offset_string)) != MUST(parse_time_zone_offset_string(global_object, name))))
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalTimeZoneOffsetStringMismatch, *parse_result.offset_string, name);
}
// c. Else,
else {
// b. If ParseText(StringToCodePoints(name, TimeZoneNumericUTCOffset)) is a List of errors, then
if (!is_valid_time_zone_numeric_utc_offset_syntax(name)) {
// i. If IsValidTimeZoneName(name) is false, throw a RangeError exception.
if (!is_valid_time_zone_name(name))
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalInvalidTimeZoneName, name);