ladybird/Userland/Libraries/LibJS/Runtime/Intl/SegmenterConstructor.cpp
Timothy Flynn 2692db8699 LibJS+Everywhere: Allow Cell::initialize overrides to throw OOM errors
Note that as of this commit, there aren't any such throwers, and the
call site in Heap::allocate will drop exceptions on the floor. This
commit only serves to change the declaration of the overrides, make sure
they return an empty value, and to propagate OOM errors frm their base
initialize invocations.
2023-01-29 00:02:45 +00:00

107 lines
4.4 KiB
C++

/*
* Copyright (c) 2022, Idan Horowitz <idan.horowitz@serenityos.org>
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/AbstractOperations.h>
#include <LibJS/Runtime/Intl/Segmenter.h>
#include <LibJS/Runtime/Intl/SegmenterConstructor.h>
#include <LibJS/Runtime/Temporal/AbstractOperations.h>
namespace JS::Intl {
// 18.1 The Intl.Segmenter Constructor, https://tc39.es/ecma402/#sec-intl-segmenter-constructor
SegmenterConstructor::SegmenterConstructor(Realm& realm)
: NativeFunction(realm.vm().names.Segmenter.as_string(), *realm.intrinsics().function_prototype())
{
}
ThrowCompletionOr<void> SegmenterConstructor::initialize(Realm& realm)
{
MUST_OR_THROW_OOM(NativeFunction::initialize(realm));
auto& vm = this->vm();
// 18.2.1 Intl.Segmenter.prototype, https://tc39.es/ecma402/#sec-intl.segmenter.prototype
define_direct_property(vm.names.prototype, realm.intrinsics().intl_segmenter_prototype(), 0);
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(realm, vm.names.supportedLocalesOf, supported_locales_of, 1, attr);
return {};
}
// 18.1.1 Intl.Segmenter ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.segmenter
ThrowCompletionOr<Value> SegmenterConstructor::call()
{
// 1. If NewTarget is undefined, throw a TypeError exception.
return vm().throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, "Intl.Segmenter");
}
// 18.1.1 Intl.Segmenter ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.segmenter
ThrowCompletionOr<NonnullGCPtr<Object>> SegmenterConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
auto locales = vm.argument(0);
auto options_value = vm.argument(1);
// 2. Let internalSlotsList be « [[InitializedSegmenter]], [[Locale]], [[SegmenterGranularity]] ».
// 3. Let segmenter be ? OrdinaryCreateFromConstructor(NewTarget, "%Segmenter.prototype%", internalSlotsList).
auto segmenter = TRY(ordinary_create_from_constructor<Segmenter>(vm, new_target, &Intrinsics::intl_segmenter_prototype));
// 4. Let requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = TRY(canonicalize_locale_list(vm, locales));
// 5. Set options to ? GetOptionsObject(options).
auto* options = TRY(Temporal::get_options_object(vm, options_value));
// 6. Let opt be a new Record.
LocaleOptions opt {};
// 7. Let matcher be ? GetOption(options, "localeMatcher", string, « "lookup", "best fit" », "best fit").
auto matcher = TRY(get_option(vm, *options, vm.names.localeMatcher, OptionType::String, { "lookup"sv, "best fit"sv }, "best fit"sv));
// 8. Set opt.[[localeMatcher]] to matcher.
opt.locale_matcher = matcher;
// 9. Let localeData be %Segmenter%.[[LocaleData]].
// 10. Let r be ResolveLocale(%Segmenter%.[[AvailableLocales]], requestedLocales, opt, %Segmenter%.[[RelevantExtensionKeys]], localeData).
auto result = TRY(resolve_locale(vm, requested_locales, opt, {}));
// 11. Set segmenter.[[Locale]] to r.[[locale]].
segmenter->set_locale(move(result.locale));
// 12. Let granularity be ? GetOption(options, "granularity", string, « "grapheme", "word", "sentence" », "grapheme").
auto granularity = TRY(get_option(vm, *options, vm.names.granularity, OptionType::String, { "grapheme"sv, "word"sv, "sentence"sv }, "grapheme"sv));
// 13. Set segmenter.[[SegmenterGranularity]] to granularity.
segmenter->set_segmenter_granularity(TRY(granularity.as_string().utf8_string_view()));
// 14. Return segmenter.
return segmenter;
}
// 18.2.2 Intl.Segmenter.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-intl.segmenter.supportedlocalesof
JS_DEFINE_NATIVE_FUNCTION(SegmenterConstructor::supported_locales_of)
{
auto locales = vm.argument(0);
auto options = vm.argument(1);
// 1. Let availableLocales be %Segmenter%.[[AvailableLocales]].
// 2. Let requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = TRY(canonicalize_locale_list(vm, locales));
// 3. Return ? SupportedLocales(availableLocales, requestedLocales, options).
return TRY(supported_locales(vm, requested_locales, options));
}
}