115baa7e32
This makes construction of Utf16String fallible in OOM conditions. The immediate impact is that PrimitiveString must then be fallible as well, as it may either transcode UTF-8 to UTF-16, or create a UTF-16 string from ropes. There are a couple of places where it is very non-trivial to propagate the error further. A FIXME has been added to those locations.
116 lines
5.2 KiB
C++
116 lines
5.2 KiB
C++
/*
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* Copyright (c) 2022, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Array.h>
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Intl/AbstractOperations.h>
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#include <LibJS/Runtime/Intl/NumberFormatConstructor.h>
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#include <LibJS/Runtime/Intl/PluralRules.h>
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#include <LibJS/Runtime/Intl/PluralRulesConstructor.h>
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namespace JS::Intl {
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// 16.1 The Intl.PluralRules Constructor, https://tc39.es/ecma402/#sec-intl-pluralrules-constructor
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PluralRulesConstructor::PluralRulesConstructor(Realm& realm)
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: NativeFunction(realm.vm().names.PluralRules.as_string(), *realm.intrinsics().function_prototype())
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{
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}
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void PluralRulesConstructor::initialize(Realm& realm)
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{
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NativeFunction::initialize(realm);
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auto& vm = this->vm();
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// 16.2.1 Intl.PluralRules.prototype, https://tc39.es/ecma402/#sec-intl.pluralrules.prototype
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define_direct_property(vm.names.prototype, realm.intrinsics().intl_plural_rules_prototype(), 0);
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define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(realm, vm.names.supportedLocalesOf, supported_locales_of, 1, attr);
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}
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// 16.1.1 Intl.PluralRules ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.pluralrules
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ThrowCompletionOr<Value> PluralRulesConstructor::call()
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{
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// 1. If NewTarget is undefined, throw a TypeError exception.
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return vm().throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, "Intl.PluralRules");
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}
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// 16.1.1 Intl.PluralRules ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.pluralrules
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ThrowCompletionOr<NonnullGCPtr<Object>> PluralRulesConstructor::construct(FunctionObject& new_target)
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{
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auto& vm = this->vm();
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auto locales = vm.argument(0);
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auto options = vm.argument(1);
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// 2. Let pluralRules be ? OrdinaryCreateFromConstructor(NewTarget, "%PluralRules.prototype%", « [[InitializedPluralRules]], [[Locale]], [[Type]], [[MinimumIntegerDigits]], [[MinimumFractionDigits]], [[MaximumFractionDigits]], [[MinimumSignificantDigits]], [[MaximumSignificantDigits]], [[RoundingType]] »).
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auto plural_rules = TRY(ordinary_create_from_constructor<PluralRules>(vm, new_target, &Intrinsics::intl_plural_rules_prototype));
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// 3. Return ? InitializePluralRules(pluralRules, locales, options).
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return *TRY(initialize_plural_rules(vm, plural_rules, locales, options));
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}
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// 16.2.2 Intl.PluralRules.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-intl.pluralrules.supportedlocalesof
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JS_DEFINE_NATIVE_FUNCTION(PluralRulesConstructor::supported_locales_of)
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{
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auto locales = vm.argument(0);
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auto options = vm.argument(1);
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// 1. Let availableLocales be %PluralRules%.[[AvailableLocales]].
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// 2. Let requestedLocales be ? CanonicalizeLocaleList(locales).
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auto requested_locales = TRY(canonicalize_locale_list(vm, locales));
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// 3. Return ? SupportedLocales(availableLocales, requestedLocales, options).
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return TRY(supported_locales(vm, requested_locales, options));
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}
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// 16.1.2 InitializePluralRules ( pluralRules, locales, options ), https://tc39.es/ecma402/#sec-initializepluralrules
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ThrowCompletionOr<PluralRules*> initialize_plural_rules(VM& vm, PluralRules& plural_rules, Value locales_value, Value options_value)
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{
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// 1. Let requestedLocales be ? CanonicalizeLocaleList(locales).
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auto requested_locales = TRY(canonicalize_locale_list(vm, locales_value));
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// 2. Set options to ? CoerceOptionsToObject(options).
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auto* options = TRY(coerce_options_to_object(vm, options_value));
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// 3. Let opt be a new Record.
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LocaleOptions opt {};
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// 4. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
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auto matcher = TRY(get_option(vm, *options, vm.names.localeMatcher, OptionType::String, AK::Array { "lookup"sv, "best fit"sv }, "best fit"sv));
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// 5. Set opt.[[localeMatcher]] to matcher.
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opt.locale_matcher = matcher;
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// 6. Let t be ? GetOption(options, "type", "string", « "cardinal", "ordinal" », "cardinal").
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auto type = TRY(get_option(vm, *options, vm.names.type, OptionType::String, AK::Array { "cardinal"sv, "ordinal"sv }, "cardinal"sv));
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// 7. Set pluralRules.[[Type]] to t.
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plural_rules.set_type(TRY(type.as_string().deprecated_string()));
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// 8. Perform ? SetNumberFormatDigitOptions(pluralRules, options, +0𝔽, 3𝔽, "standard").
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TRY(set_number_format_digit_options(vm, plural_rules, *options, 0, 3, NumberFormat::Notation::Standard));
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// 9. Let localeData be %PluralRules%.[[LocaleData]].
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// 10. Let r be ResolveLocale(%PluralRules%.[[AvailableLocales]], requestedLocales, opt, %PluralRules%.[[RelevantExtensionKeys]], localeData).
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auto result = TRY(resolve_locale(requested_locales, opt, {}));
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// 11. Set pluralRules.[[Locale]] to r.[[locale]].
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plural_rules.set_locale(move(result.locale));
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// Non-standard, the data locale is used by our NumberFormat implementation.
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plural_rules.set_data_locale(move(result.data_locale));
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// 12. Return pluralRules.
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return &plural_rules;
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}
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}
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