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LibJS: Implement the Intl.RelativeTimeFormat constructor

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Timothy Flynn 2022-01-25 11:50:14 -05:00 • committed by Linus Groh
parent 79fdec85de
commit a2e31ed736
4 changed files with 168 additions and 1 deletions
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80
Userland/Libraries/LibJS/Runtime/Intl/RelativeTimeFormat.cpp
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@ -4,6 +4,11 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/AbstractOperations.h>
#include <LibJS/Runtime/Intl/NumberFormat.h>
#include <LibJS/Runtime/Intl/NumberFormatConstructor.h>
#include <LibJS/Runtime/Intl/RelativeTimeFormat.h>
namespace JS::Intl {
@ -44,4 +49,79 @@ StringView RelativeTimeFormat::numeric_string() const
}
}
ThrowCompletionOr<RelativeTimeFormat*> initialize_relative_time_format(GlobalObject& global_object, RelativeTimeFormat& relative_time_format, 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 numberingSystem be ? GetOption(options, "numberingSystem", "string", undefined, undefined).
auto numbering_system = TRY(get_option(global_object, *options, vm.names.numberingSystem, Value::Type::String, {}, Empty {}));
// 7. If numberingSystem is not undefined, then
if (!numbering_system.is_undefined()) {
// a. If numberingSystem does not match the Unicode Locale Identifier type nonterminal, throw a RangeError exception.
if (!Unicode::is_type_identifier(numbering_system.as_string().string()))
return vm.throw_completion<RangeError>(global_object, ErrorType::OptionIsNotValidValue, numbering_system, "numberingSystem"sv);
// 8. Set opt.[[nu]] to numberingSystem.
opt.nu = numbering_system.as_string().string();
}
// 9. Let localeData be %RelativeTimeFormat%.[[LocaleData]].
// 10. Let r be ResolveLocale(%RelativeTimeFormat%.[[AvailableLocales]], requestedLocales, opt, %RelativeTimeFormat%.[[RelevantExtensionKeys]], localeData).
auto result = resolve_locale(requested_locales, opt, RelativeTimeFormat::relevant_extension_keys());
// 11. Let locale be r.[[locale]].
auto locale = move(result.locale);
// 12. Set relativeTimeFormat.[[Locale]] to locale.
relative_time_format.set_locale(locale);
// 13. Set relativeTimeFormat.[[DataLocale]] to r.[[dataLocale]].
relative_time_format.set_data_locale(move(result.data_locale));
// 14. Set relativeTimeFormat.[[NumberingSystem]] to r.[[nu]].
if (result.nu.has_value())
relative_time_format.set_numbering_system(result.nu.release_value());
// 15. Let style be ? GetOption(options, "style", "string", « "long", "short", "narrow" », "long").
auto style = TRY(get_option(global_object, *options, vm.names.style, Value::Type::String, { "long"sv, "short"sv, "narrow"sv }, "long"sv));
// 16. Set relativeTimeFormat.[[Style]] to style.
relative_time_format.set_style(style.as_string().string());
// 17. Let numeric be ? GetOption(options, "numeric", "string", « "always", "auto" », "always").
auto numeric = TRY(get_option(global_object, *options, vm.names.numeric, Value::Type::String, { "always"sv, "auto"sv }, "always"sv));
// 18. Set relativeTimeFormat.[[Numeric]] to numeric.
relative_time_format.set_numeric(numeric.as_string().string());
MarkedValueList arguments { vm.heap() };
arguments.append(js_string(vm, locale));
// 19. Let relativeTimeFormat.[[NumberFormat]] be ! Construct(%NumberFormat%, « locale »).
auto* number_format = MUST(construct(global_object, *global_object.intl_number_format_constructor(), move(arguments)));
relative_time_format.set_number_format(static_cast<NumberFormat*>(number_format));
// 20. Let relativeTimeFormat.[[PluralRules]] be ! Construct(%PluralRules%, « locale »).
// FIXME: We do not yet support Intl.PluralRules.
// 21. Return relativeTimeFormat.
return &relative_time_format;
}
}