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LibJS: Remove Sign abstract operation

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This is an editorial change in the Temporal spec.

See: bbc1ebc
This commit is contained in:
Linus Groh 2022-03-10 17:56:58 +01:00
parent 0d06f3655f
commit 2bae040bc9
4 changed files with 77 additions and 109 deletions
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12
Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTime.cpp
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@ -460,18 +460,18 @@ ThrowCompletionOr<NanosecondsToDaysResult> nanoseconds_to_days(GlobalObject& glo
// 2. Set nanoseconds to ℝ(nanoseconds).
auto nanoseconds = nanoseconds_bigint.big_integer();
// 3. Let sign be ! ℝ(Sign(𝔽(nanoseconds))).
auto sign = Temporal::sign(nanoseconds);
// 4. Let dayLengthNs be 8.64 × 10^13.
// 3. Let dayLengthNs be 8.64 × 10^13.
auto day_length_ns = "86400000000000"_sbigint;
// 5. If sign is 0, then
if (sign == 0) {
// 4. If nanoseconds = 0, then
if (nanoseconds == "0"_bigint) {
// a. Return the Record { [[Days]]: 0, [[Nanoseconds]]: 0, [[DayLength]]: dayLengthNs }.
return NanosecondsToDaysResult { .days = 0, .nanoseconds = make_handle(js_bigint(vm, { 0 })), .day_length = day_length_ns.to_double() };
}
// 5. If nanoseconds < 0, let sign be −1; else, let sign be 1.
auto sign = nanoseconds.is_negative() ? -1 : 1;
// 6. If Type(relativeTo) is not Object or relativeTo does not have an [[InitializedTemporalZonedDateTime]] internal slot, then
if (!relative_to_value.is_object() || !is<ZonedDateTime>(relative_to_value.as_object())) {
// a. Return the Record { [[Days]]: the integral part of nanoseconds / dayLengthNs, [[Nanoseconds]]: (abs(nanoseconds) modulo dayLengthNs) × sign, [[DayLength]]: dayLengthNs }.