85 lines
3 KiB
C++
85 lines
3 KiB
C++
/*
|
||
* Copyright (c) 2022, Tim Flynn <trflynn89@pm.me>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#include <AK/Array.h>
|
||
#include <LibJS/Runtime/GlobalObject.h>
|
||
#include <LibJS/Runtime/Intl/PluralRules.h>
|
||
|
||
namespace JS::Intl {
|
||
|
||
// 16 PluralRules Objects, https://tc39.es/ecma402/#pluralrules-objects
|
||
PluralRules::PluralRules(Object& prototype)
|
||
: NumberFormatBase(prototype)
|
||
{
|
||
}
|
||
|
||
void PluralRules::set_type(StringView type)
|
||
{
|
||
if (type == "cardinal"sv) {
|
||
m_type = Type::Cardinal;
|
||
} else if (type == "ordinal"sv) {
|
||
m_type = Type::Ordinal;
|
||
} else {
|
||
VERIFY_NOT_REACHED();
|
||
}
|
||
}
|
||
|
||
StringView PluralRules::type_string() const
|
||
{
|
||
switch (m_type) {
|
||
case Type::Cardinal:
|
||
return "cardinal"sv;
|
||
case Type::Ordinal:
|
||
return "ordinal"sv;
|
||
default:
|
||
VERIFY_NOT_REACHED();
|
||
}
|
||
}
|
||
|
||
// 16.1.1 InitializePluralRules ( pluralRules, locales, options ), https://tc39.es/ecma402/#sec-initializepluralrules
|
||
ThrowCompletionOr<PluralRules*> initialize_plural_rules(GlobalObject& global_object, PluralRules& plural_rules, Value locales_value, Value options_value)
|
||
{
|
||
auto& vm = global_object.vm();
|
||
|
||
// 1. Let requestedLocales be ? CanonicalizeLocaleList(locales).
|
||
auto requested_locales = TRY(canonicalize_locale_list(global_object, locales_value));
|
||
|
||
// 2. Set options to ? CoerceOptionsToObject(options).
|
||
auto* options = TRY(coerce_options_to_object(global_object, options_value));
|
||
|
||
// 3. Let opt be a new Record.
|
||
LocaleOptions opt {};
|
||
|
||
// 4. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
|
||
auto matcher = TRY(get_option(global_object, *options, vm.names.localeMatcher, Value::Type::String, AK::Array { "lookup"sv, "best fit"sv }, "best fit"sv));
|
||
|
||
// 5. Set opt.[[localeMatcher]] to matcher.
|
||
opt.locale_matcher = matcher;
|
||
|
||
// 6. Let t be ? GetOption(options, "type", "string", « "cardinal", "ordinal" », "cardinal").
|
||
auto type = TRY(get_option(global_object, *options, vm.names.type, Value::Type::String, AK::Array { "cardinal"sv, "ordinal"sv }, "cardinal"sv));
|
||
|
||
// 7. Set pluralRules.[[Type]] to t.
|
||
plural_rules.set_type(type.as_string().string());
|
||
|
||
// 8. Perform ? SetNumberFormatDigitOptions(pluralRules, options, +0𝔽, 3𝔽, "standard").
|
||
TRY(set_number_format_digit_options(global_object, plural_rules, *options, 0, 3, NumberFormat::Notation::Standard));
|
||
|
||
// 9. Let localeData be %PluralRules%.[[LocaleData]].
|
||
// 10. Let r be ResolveLocale(%PluralRules%.[[AvailableLocales]], requestedLocales, opt, %PluralRules%.[[RelevantExtensionKeys]], localeData).
|
||
auto result = resolve_locale(requested_locales, opt, {});
|
||
|
||
// 11. Set pluralRules.[[Locale]] to r.[[locale]].
|
||
plural_rules.set_locale(move(result.locale));
|
||
|
||
// Non-standard, the data locale is used by our NumberFormat implementation.
|
||
plural_rules.set_data_locale(move(result.data_locale));
|
||
|
||
// 12. Return pluralRules.
|
||
return &plural_rules;
|
||
}
|
||
|
||
}
|