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LibJS+LibUnicode: Supply field type in CalendarPattern's for-each method

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Some callers will want different behavior depending on what field is
being provided to the callback.
This commit is contained in:
Timothy Flynn 2021-12-07 08:40:06 -05:00 committed by Linus Groh
parent 80ea6e664d
commit 6ace4000bf
Notes: sideshowbarker 2024-07-17 23:05:27 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/6ace4000bf9
Pull-request: https://github.com/SerenityOS/serenity/pull/11184
3 changed files with 32 additions and 18 deletions
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4
Meta/Lagom/Tools/CodeGenerators/LibUnicode/GenerateUnicodeDateTimeFormat.cpp
View file

@ -499,11 +499,11 @@ static void generate_missing_patterns(Calendar& calendar, Vector<CalendarPattern
format.pattern12_index = replace_pattern(format.pattern_index, time_format.pattern12_index, date_format.pattern_index);
format.pattern_index = replace_pattern(format.pattern_index, time_format.pattern_index, date_format.pattern_index);
format.for_each_calendar_field_zipped_with(date_format, [](auto& field, auto const& date_field) {
format.for_each_calendar_field_zipped_with(date_format, [](auto& field, auto const& date_field, auto) {
if (date_field.has_value())
field = date_field;
});
format.for_each_calendar_field_zipped_with(time_format, [](auto& field, auto const& time_field) {
format.for_each_calendar_field_zipped_with(time_format, [](auto& field, auto const& time_field, auto) {
if (time_field.has_value())
field = time_field;
});

10
Userland/Libraries/LibJS/Runtime/Intl/DateTimeFormat.cpp
View file

@ -249,7 +249,7 @@ ThrowCompletionOr<DateTimeFormat*> initialize_date_time_format(GlobalObject& glo
return &date_time_format;
// 38. For each row in Table 4, except the header row, in table order, do
date_time_format.for_each_calendar_field_zipped_with(*best_format, [&](auto& date_time_format_field, auto const& best_format_field) {
date_time_format.for_each_calendar_field_zipped_with(*best_format, [&](auto& date_time_format_field, auto const& best_format_field, auto) {
// a. Let prop be the name given in the Property column of the row.
// b. If bestFormat has a field [[<prop>]], then
if (best_format_field.has_value()) {
@ -490,12 +490,12 @@ Optional<Unicode::CalendarPattern> date_time_style_format(StringView data_locale
Unicode::CalendarPattern format {};
// b. Add to format all fields from dateFormat except [[pattern]] and [[rangePatterns]].
format.for_each_calendar_field_zipped_with(date_format, [](auto& format_field, auto const& date_format_field) {
format.for_each_calendar_field_zipped_with(date_format, [](auto& format_field, auto const& date_format_field, auto) {
format_field = date_format_field;
});
// c. Add to format all fields from timeFormat except [[pattern]], [[rangePatterns]], [[pattern12]], and [[rangePatterns12]], if present.
format.for_each_calendar_field_zipped_with(time_format, [](auto& format_field, auto const& time_format_field) {
format.for_each_calendar_field_zipped_with(time_format, [](auto& format_field, auto const& time_format_field, auto) {
if (time_format_field.has_value())
format_field = time_format_field;
});
@ -577,7 +577,7 @@ Optional<Unicode::CalendarPattern> basic_format_matcher(Unicode::CalendarPattern
int score = 0;
// b. For each property name property shown in Table 4, do
format.for_each_calendar_field_zipped_with(options, [&](auto const& format_prop, auto const& options_prop) {
format.for_each_calendar_field_zipped_with(options, [&](auto const& format_prop, auto const& options_prop, auto) {
using ValueType = typename RemoveReference<decltype(options_prop)>::ValueType;
// i. If options has a field [[<property>]], let optionsProp be options.[[<property>]]; else let optionsProp be undefined.
@ -659,7 +659,7 @@ Optional<Unicode::CalendarPattern> basic_format_matcher(Unicode::CalendarPattern
//
// Rather than generating an prohibitively large amount of nearly-duplicate patterns, which only
// differ by field length, we expand the field lengths here.
best_format->for_each_calendar_field_zipped_with(options, [](auto& best_format_field, auto const& option_field) {
best_format->for_each_calendar_field_zipped_with(options, [](auto& best_format_field, auto const& option_field, auto) {
if (best_format_field.has_value() && option_field.has_value())
best_format_field = option_field;
});

36
Userland/Libraries/LibUnicode/DateTimeFormat.h
View file

@ -31,20 +31,34 @@ enum class CalendarPatternStyle : u8 {
};
struct CalendarPattern {
enum class Field {
Era,
Year,
Month,
Weekday,
Day,
DayPeriod,
Hour,
Minute,
Second,
FractionalSecondDigits,
TimeZoneName,
};
template<typename Callback>
void for_each_calendar_field_zipped_with(CalendarPattern const& other, Callback&& callback)
{
callback(era, other.era);
callback(year, other.year);
callback(month, other.month);
callback(weekday, other.weekday);
callback(day, other.day);
callback(day_period, other.day_period);
callback(hour, other.hour);
callback(minute, other.minute);
callback(second, other.second);
callback(fractional_second_digits, other.fractional_second_digits);
callback(time_zone_name, other.time_zone_name);
callback(era, other.era, Field::Era);
callback(year, other.year, Field::Year);
callback(month, other.month, Field::Month);
callback(weekday, other.weekday, Field::Weekday);
callback(day, other.day, Field::Day);
callback(day_period, other.day_period, Field::DayPeriod);
callback(hour, other.hour, Field::Hour);
callback(minute, other.minute, Field::Minute);
callback(second, other.second, Field::Second);
callback(fractional_second_digits, other.fractional_second_digits, Field::FractionalSecondDigits);
callback(time_zone_name, other.time_zone_name, Field::TimeZoneName);
}
String pattern {};