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LibLocale+LibJS: Make locale data APIs infallible

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These APIs only perform small allocations, and are only used by LibJS.
Callers which could only have failed from these APIs are also made to
be infallible here.
This commit is contained in:
Timothy Flynn 2023-08-22 15:39:18 -04:00 • committed by Andreas Kling
parent a98201f889
commit cd526813e6
20 changed files with 340 additions and 364 deletions
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42
Meta/Lagom/Tools/CodeGenerators/LibLocale/GenerateLocaleData.cpp
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@ -1351,18 +1351,18 @@ static constexpr Array<@type@, @size@> @name@ { {)~~~");
struct CanonicalLanguageID
{
ErrorOr<LanguageID> to_unicode_language_id() const
LanguageID to_unicode_language_id() const
{
LanguageID language_id {};
TRY(language_id.variants.try_ensure_capacity(variants_size));
language_id.variants.ensure_capacity(variants_size);
language_id.language = TRY(String::from_utf8(decode_string(language)));
language_id.language = MUST(String::from_utf8(decode_string(language)));
if (script != 0)
language_id.script = TRY(String::from_utf8(decode_string(script)));
language_id.script = MUST(String::from_utf8(decode_string(script)));
if (region != 0)
language_id.region = TRY(String::from_utf8(decode_string(region)));
language_id.region = MUST(String::from_utf8(decode_string(region)));
for (size_t i = 0; i < variants_size; ++i)
language_id.variants.append(TRY(String::from_utf8(decode_string(variants[i]))));
language_id.variants.append(MUST(String::from_utf8(decode_string(variants[i]))));
return language_id;
}
@ -1674,13 +1674,13 @@ static ReadonlySpan<@string_index_type@> find_keyword_indices(StringView locale,
return s_keyword_lists.at(keywords_index);
}
ErrorOr<Optional<StringView>> get_preferred_keyword_value_for_locale(StringView locale, StringView key)
Optional<StringView> get_preferred_keyword_value_for_locale(StringView locale, StringView key)
{
// Hour cycle keywords are region-based rather than locale-based, so they need to be handled specially.
// FIXME: Calendar keywords are also region-based, and will need to be handled here when we support non-Gregorian calendars:
// https://github.com/unicode-org/cldr-json/blob/main/cldr-json/cldr-core/supplemental/calendarPreferenceData.json
if (key == "hc"sv) {
auto hour_cycles = TRY(get_locale_hour_cycles(locale));
auto hour_cycles = MUST(get_locale_hour_cycles(locale));
if (hour_cycles.is_empty())
return OptionalNone {};
@ -1703,16 +1703,16 @@ ErrorOr<Optional<StringView>> get_preferred_keyword_value_for_locale(StringView
return Optional<StringView> { decode_string(keyword_indices[0]) };
}
ErrorOr<Vector<StringView>> get_keywords_for_locale(StringView locale, StringView key)
Vector<StringView> get_keywords_for_locale(StringView locale, StringView key)
{
// Hour cycle keywords are region-based rather than locale-based, so they need to be handled specially.
// FIXME: Calendar keywords are also region-based, and will need to be handled here when we support non-Gregorian calendars:
// https://github.com/unicode-org/cldr-json/blob/main/cldr-json/cldr-core/supplemental/calendarPreferenceData.json
if (key == "hc"sv) {
auto hour_cycles = TRY(get_locale_hour_cycles(locale));
auto hour_cycles = MUST(get_locale_hour_cycles(locale));
Vector<StringView> values;
TRY(values.try_ensure_capacity(hour_cycles.size()));
values.ensure_capacity(hour_cycles.size());
for (auto hour_cycle : hour_cycles)
values.unchecked_append(hour_cycle_to_string(hour_cycle));
@ -1727,7 +1727,7 @@ ErrorOr<Vector<StringView>> get_keywords_for_locale(StringView locale, StringVie
auto keyword_indices = find_keyword_indices(locale, key);
Vector<StringView> keywords;
TRY(keywords.try_ensure_capacity(keyword_indices.size()));
keywords.ensure_capacity(keyword_indices.size());
for (auto keyword : keyword_indices)
keywords.unchecked_append(decode_string(keyword));
@ -1798,7 +1798,7 @@ Optional<CharacterOrder> character_order_for_locale(StringView locale)
return {};
}
ErrorOr<void> resolve_complex_language_aliases(LanguageID& language_id)
void resolve_complex_language_aliases(LanguageID& language_id)
{
for (auto const& map : s_complex_alias) {
auto key_language = decode_string(map.key.language);
@ -1814,7 +1814,7 @@ ErrorOr<void> resolve_complex_language_aliases(LanguageID& language_id)
if (!map.key.matches_variants(language_id.variants))
continue;
auto alias = TRY(map.alias.to_unicode_language_id());
auto alias = map.alias.to_unicode_language_id();
if (alias.language == "und"sv)
alias.language = move(language_id.language);
@ -1828,11 +1828,9 @@ ErrorOr<void> resolve_complex_language_aliases(LanguageID& language_id)
language_id = move(alias);
break;
}
return {};
}
ErrorOr<Optional<LanguageID>> add_likely_subtags(LanguageID const& language_id)
Optional<LanguageID> add_likely_subtags(LanguageID const& language_id)
{
// https://www.unicode.org/reports/tr35/#Likely_Subtags
auto const* likely_subtag = resolve_likely_subtag(language_id);
@ -1849,19 +1847,19 @@ ErrorOr<Optional<LanguageID>> add_likely_subtags(LanguageID const& language_id)
auto alias_region = decode_string(likely_subtag->alias.region);
if (maximized.language == "und"sv)
maximized.language = TRY(String::from_utf8(alias_language));
maximized.language = MUST(String::from_utf8(alias_language));
if (!maximized.script.has_value() || (!key_script.is_empty() && !alias_script.is_empty()))
maximized.script = TRY(String::from_utf8(alias_script));
maximized.script = MUST(String::from_utf8(alias_script));
if (!maximized.region.has_value() || (!key_region.is_empty() && !alias_region.is_empty()))
maximized.region = TRY(String::from_utf8(alias_region));
maximized.region = MUST(String::from_utf8(alias_region));
return maximized;
}
ErrorOr<Optional<String>> resolve_most_likely_territory(LanguageID const& language_id)
Optional<String> resolve_most_likely_territory(LanguageID const& language_id)
{
if (auto const* likely_subtag = resolve_likely_subtag(language_id); likely_subtag != nullptr)
return String::from_utf8(decode_string(likely_subtag->alias.region));
return MUST(String::from_utf8(decode_string(likely_subtag->alias.region)));
return OptionalNone {};
}