Don't look for slots on maybe-undefined relativeTo

Fixes tc39#2618
justingrant · Aug 19, 2023 · 2920565 · 2920565
1 parent c4f9cf7
commit 2920565
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/spec/duration.html b/spec/duration.html
@@ -436,7 +436,7 @@ <h1>Temporal.Duration.prototype.round ( _roundTo_ )</h1>
         1. Let _unbalanceResult_ be ? UnbalanceDateDurationRelative(_duration_.[[Years]], _duration_.[[Months]], _duration_.[[Weeks]], _duration_.[[Days]], _largestUnit_, _relativeTo_).
         1. Let _roundRecord_ be ? RoundDuration(_unbalanceResult_.[[Years]], _unbalanceResult_.[[Months]], _unbalanceResult_.[[Weeks]], _unbalanceResult_.[[Days]], _duration_.[[Hours]], _duration_.[[Minutes]], _duration_.[[Seconds]], _duration_.[[Milliseconds]], _duration_.[[Microseconds]], _duration_.[[Nanoseconds]], _roundingIncrement_, _smallestUnit_, _roundingMode_, _relativeTo_).
         1. Let _roundResult_ be _roundRecord_.[[DurationRecord]].
-        1. If _relativeTo_ has an [[InitializedTemporalZonedDateTime]] internal slot, then
+        1. If _relativeTo_ is not *undefined* and _relativeTo_ has an [[InitializedTemporalZonedDateTime]] internal slot, then
           1. Set _roundResult_ to ? AdjustRoundedDurationDays(_roundResult_.[[Years]], _roundResult_.[[Months]], _roundResult_.[[Weeks]], _roundResult_.[[Days]], _roundResult_.[[Hours]], _roundResult_.[[Minutes]], _roundResult_.[[Seconds]], _roundResult_.[[Milliseconds]], _roundResult_.[[Microseconds]], _roundResult_.[[Nanoseconds]], _roundingIncrement_, _smallestUnit_, _roundingMode_, _relativeTo_).
           1. Let _balanceResult_ be ? BalanceTimeDurationRelative(_roundResult_.[[Days]], _roundResult_.[[Hours]], _roundResult_.[[Minutes]], _roundResult_.[[Seconds]], _roundResult_.[[Milliseconds]], _roundResult_.[[Microseconds]], _roundResult_.[[Nanoseconds]], _largestUnit_, _relativeTo_).
         1. Else,