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.
104 lines
4.3 KiB
C++
104 lines
4.3 KiB
C++
/*
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* Copyright (c) 2022, Idan Horowitz <idan.horowitz@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 <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/Segmenter.h>
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#include <LibJS/Runtime/Intl/SegmenterConstructor.h>
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#include <LibJS/Runtime/Temporal/AbstractOperations.h>
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namespace JS::Intl {
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// 18.1 The Intl.Segmenter Constructor, https://tc39.es/ecma402/#sec-intl-segmenter-constructor
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SegmenterConstructor::SegmenterConstructor(Realm& realm)
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: NativeFunction(realm.vm().names.Segmenter.as_string(), *realm.intrinsics().function_prototype())
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{
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}
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void SegmenterConstructor::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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// 18.2.1 Intl.Segmenter.prototype, https://tc39.es/ecma402/#sec-intl.segmenter.prototype
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define_direct_property(vm.names.prototype, realm.intrinsics().intl_segmenter_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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// 18.1.1 Intl.Segmenter ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.segmenter
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ThrowCompletionOr<Value> SegmenterConstructor::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.Segmenter");
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}
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// 18.1.1 Intl.Segmenter ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.segmenter
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ThrowCompletionOr<NonnullGCPtr<Object>> SegmenterConstructor::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_value = vm.argument(1);
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// 2. Let internalSlotsList be « [[InitializedSegmenter]], [[Locale]], [[SegmenterGranularity]] ».
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// 3. Let segmenter be ? OrdinaryCreateFromConstructor(NewTarget, "%Segmenter.prototype%", internalSlotsList).
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auto segmenter = TRY(ordinary_create_from_constructor<Segmenter>(vm, new_target, &Intrinsics::intl_segmenter_prototype));
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// 4. Let requestedLocales be ? CanonicalizeLocaleList(locales).
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auto requested_locales = TRY(canonicalize_locale_list(vm, locales));
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// 5. Set options to ? GetOptionsObject(options).
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auto* options = TRY(Temporal::get_options_object(vm, options_value));
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// 6. Let opt be a new Record.
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LocaleOptions opt {};
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// 7. 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, { "lookup"sv, "best fit"sv }, "best fit"sv));
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// 8. Set opt.[[localeMatcher]] to matcher.
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opt.locale_matcher = matcher;
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// 9. Let localeData be %Segmenter%.[[LocaleData]].
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// 10. Let r be ResolveLocale(%Segmenter%.[[AvailableLocales]], requestedLocales, opt, %Segmenter%.[[RelevantExtensionKeys]], localeData).
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auto result = TRY(resolve_locale(requested_locales, opt, {}));
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// 11. Set segmenter.[[Locale]] to r.[[locale]].
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segmenter->set_locale(move(result.locale));
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// 12. Let granularity be ? GetOption(options, "granularity", "string", « "grapheme", "word", "sentence" », "grapheme").
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auto granularity = TRY(get_option(vm, *options, vm.names.granularity, OptionType::String, { "grapheme"sv, "word"sv, "sentence"sv }, "grapheme"sv));
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// 13. Set segmenter.[[SegmenterGranularity]] to granularity.
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segmenter->set_segmenter_granularity(TRY(granularity.as_string().deprecated_string()));
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// 14. Return segmenter.
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return segmenter;
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}
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// 18.2.2 Intl.Segmenter.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-intl.segmenter.supportedlocalesof
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JS_DEFINE_NATIVE_FUNCTION(SegmenterConstructor::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 %Segmenter%.[[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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}
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