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LibLocale: Propagate OOM from CLDR DateTime Vector and String operations

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Timothy Flynn 2023-02-02 21:34:01 -05:00 • committed by Linus Groh
parent 89da8de4ca
commit 340434ce09
3 changed files with 19 additions and 13 deletions
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22
Userland/Libraries/LibLocale/DateTimeFormat.cpp
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@ -92,9 +92,9 @@ StringView calendar_pattern_style_to_string(CalendarPatternStyle style)
}
Optional<HourCycleRegion> __attribute__((weak)) hour_cycle_region_from_string(StringView) { return {}; }
Vector<HourCycle> __attribute__((weak)) get_regional_hour_cycles(StringView) { return {}; }
ErrorOr<Vector<HourCycle>> __attribute__((weak)) get_regional_hour_cycles(StringView) { return Vector<HourCycle> {}; }
template<typename T, typename GetRegionalValues>
template<typename T, FallibleFunction<StringView> GetRegionalValues>
static ErrorOr<T> find_regional_values_for_locale(StringView locale, GetRegionalValues&& get_regional_values)
{
auto has_value = [](auto const& container) {
@ -104,7 +104,7 @@ static ErrorOr<T> find_regional_values_for_locale(StringView locale, GetRegional
return !container.is_empty();
};
if (auto regional_values = get_regional_values(locale); has_value(regional_values))
if (auto regional_values = TRY(get_regional_values(locale)); has_value(regional_values))
return regional_values;
auto return_default_values = [&]() { return get_regional_values("001"sv); };
@ -118,12 +118,18 @@ static ErrorOr<T> find_regional_values_for_locale(StringView locale, GetRegional
if (!language.has_value() || !language->region.has_value())
return return_default_values();
if (auto regional_values = get_regional_values(*language->region); has_value(regional_values))
if (auto regional_values = TRY(get_regional_values(*language->region)); has_value(regional_values))
return regional_values;
return return_default_values();
}
template<typename T, typename GetRegionalValues>
static ErrorOr<T> find_regional_values_for_locale(StringView locale, GetRegionalValues&& get_regional_values)
{
return find_regional_values_for_locale<T>(locale, [&](auto region) -> ErrorOr<T> { return get_regional_values(region); });
}
// https://unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table
ErrorOr<Vector<HourCycle>> get_locale_hour_cycles(StringView locale)
{
@ -187,22 +193,22 @@ ErrorOr<String> combine_skeletons(StringView first, StringView second)
StringBuilder builder;
auto append_from_skeleton = [&](auto skeleton, auto ch) {
auto append_from_skeleton = [&](auto skeleton, auto ch) -> ErrorOr<bool> {
auto first_index = skeleton.find(ch);
if (!first_index.has_value())
return false;
auto last_index = skeleton.find_last(ch);
builder.append(skeleton.substring_view(*first_index, *last_index - *first_index + 1));
TRY(builder.try_append(skeleton.substring_view(*first_index, *last_index - *first_index + 1)));
return true;
};
for (auto fields : field_order) {
for (auto ch : fields) {
if (append_from_skeleton(first, ch))
if (TRY(append_from_skeleton(first, ch)))
break;
if (append_from_skeleton(second, ch))
if (TRY(append_from_skeleton(second, ch)))
break;
}
}