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LibJS: Port temporal_duration_to_string() to String

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Linus Groh 2023-01-26 15:40:58 +00:00
parent 49b5d55b95
commit f669d2e558
3 changed files with 11 additions and 12 deletions
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15
Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp
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@ -1655,7 +1655,7 @@ ThrowCompletionOr<DurationRecord> adjust_rounded_duration_days(VM& vm, double ye
}
// 7.5.27 TemporalDurationToString ( years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, precision ), https://tc39.es/proposal-temporal/#sec-temporal-temporaldurationtostring
DeprecatedString temporal_duration_to_string(double years, double months, double weeks, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, double nanoseconds, Variant<StringView, u8> const& precision)
ThrowCompletionOr<String> temporal_duration_to_string(VM& vm, double years, double months, double weeks, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, double nanoseconds, Variant<StringView, u8> const& precision)
{
if (precision.has<StringView>())
VERIFY(precision.get<StringView>() == "auto"sv);
@ -1736,24 +1736,23 @@ DeprecatedString temporal_duration_to_string(double years, double months, double
// b. Let decimalPart be ToZeroPaddedDecimalString(fraction, 9).
// NOTE: padding with zeros leads to weird results when applied to a double. Not sure if that's a bug in AK/Format.h or if I'm doing this wrong.
auto decimal_part = DeprecatedString::formatted("{:09}", (u64)fraction);
auto decimal_part_string = TRY_OR_THROW_OOM(vm, String::formatted("{:09}", (u64)fraction));
StringView decimal_part;
// c. If precision is "auto", then
if (precision.has<StringView>() && precision.get<StringView>() == "auto"sv) {
// i. Set decimalPart to the longest possible substring of decimalPart starting at position 0 and not ending with the code unit 0x0030 (DIGIT ZERO).
// NOTE: trim() would keep the left-most 0.
while (decimal_part.ends_with('0'))
decimal_part = decimal_part.substring(0, decimal_part.length() - 1);
decimal_part = decimal_part_string.bytes_as_string_view().trim("0"sv, TrimMode::Right);
}
// d. Else if precision = 0, then
else if (precision.get<u8>() == 0) {
// i. Set decimalPart to "".
decimal_part = DeprecatedString::empty();
decimal_part = ""sv;
}
// e. Else,
else {
// i. Set decimalPart to the substring of decimalPart from 0 to precision.
decimal_part = decimal_part.substring(0, precision.get<u8>());
decimal_part = decimal_part_string.bytes_as_string_view().substring_view(0, precision.get<u8>());
}
// f. Let secondsPart be abs(seconds) formatted as a decimal number.
@ -1789,7 +1788,7 @@ DeprecatedString temporal_duration_to_string(double years, double months, double
}
// 20. Return result.
return result.to_deprecated_string();
return TRY_OR_THROW_OOM(vm, result.to_string());
}
// 7.5.28 AddDurationToOrSubtractDurationFromDuration ( operation, duration, other, options ), https://tc39.es/proposal-temporal/#sec-temporal-adddurationtoorsubtractdurationfromduration