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LibJS: Only call CanonicalizeTimeZoneName on valid time zone IDs
This is an editorial change in the Temporal spec.
See: 30122e6
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1 changed files with 7 additions and 4 deletions
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@ -450,12 +450,12 @@ ThrowCompletionOr<Object*> to_temporal_time_zone(GlobalObject& global_object, Va
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// TimeZoneIANAName for the returned [[Name]] slot, not TimeZoneUTCOffsetName.
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// So when we provide a numeric time zone offset, this branch won't be executed,
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// and if we provide an IANA name, it won't be a valid TimeZoneNumericUTCOffset.
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// This should be fixed by: https://github.com/tc39/proposal-temporal/pull/1941
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// This should be fixed by: https://github.com/tc39/proposal-temporal/pull/2200
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// 4. If parseResult.[[Name]] is not undefined, then
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if (parse_result.name.has_value()) {
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// a. Let name be parseResult.[[Name]].
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auto& name = *parse_result.name;
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auto name = parse_result.name.release_value();
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// b. If ParseText(StringToCodePoints(name, TimeZoneNumericUTCOffset)) is not a List of errors, then
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if (is_valid_time_zone_numeric_utc_offset_syntax(name)) {
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@ -468,10 +468,13 @@ ThrowCompletionOr<Object*> to_temporal_time_zone(GlobalObject& global_object, Va
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// i. If IsValidTimeZoneName(name) is false, throw a RangeError exception.
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if (!is_valid_time_zone_name(name))
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return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalInvalidTimeZoneName, name);
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// ii. Set name to ! CanonicalizeTimeZoneName(name).
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name = canonicalize_time_zone_name(name);
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}
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// c. Return ! CreateTemporalTimeZone(! CanonicalizeTimeZoneName(name)).
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return MUST(create_temporal_time_zone(global_object, canonicalize_time_zone_name(name)));
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// c. Return ! CreateTemporalTimeZone(name).
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return MUST(create_temporal_time_zone(global_object, name));
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}
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// 5. If parseResult.[[Z]] is true, return ! CreateTemporalTimeZone("UTC").
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