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LibJS: Implement a nearly empty Intl.DisplayNames object

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This adds plumbing for the Intl.DisplayNames object, constructor, and
prototype.
This commit is contained in:
Timothy Flynn 2021-08-24 22:27:05 -04:00 • committed by Linus Groh
parent 137e98cb6f
commit 0fb4e8b749
12 changed files with 325 additions and 1 deletions
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54
Userland/Libraries/LibJS/Runtime/Intl/DisplayNamesConstructor.cpp Normal file
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/*
* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/DisplayNames.h>
#include <LibJS/Runtime/Intl/DisplayNamesConstructor.h>
namespace JS::Intl {
// 12.2 The Intl.DisplayNames Constructor, https://tc39.es/ecma402/#sec-intl-displaynames-constructor
DisplayNamesConstructor::DisplayNamesConstructor(GlobalObject& global_object)
: NativeFunction(vm().names.DisplayNames.as_string(), *global_object.function_prototype())
{
}
void DisplayNamesConstructor::initialize(GlobalObject& global_object)
{
NativeFunction::initialize(global_object);
auto& vm = this->vm();
// 12.3.1 Intl.DisplayNames.prototype, https://tc39.es/ecma402/#sec-Intl.DisplayNames.prototype
define_direct_property(vm.names.prototype, global_object.intl_display_names_prototype(), 0);
define_direct_property(vm.names.length, Value(2), Attribute::Configurable);
}
// 12.2.1 Intl.DisplayNames ( locales, options ), https://tc39.es/ecma402/#sec-Intl.DisplayNames
Value DisplayNamesConstructor::call()
{
// 1. If NewTarget is undefined, throw a TypeError exception.
vm().throw_exception<TypeError>(global_object(), ErrorType::ConstructorWithoutNew, "Intl.DisplayNames");
return {};
}
// 12.2.1 Intl.DisplayNames ( locales, options ), https://tc39.es/ecma402/#sec-Intl.DisplayNames
Value DisplayNamesConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
auto& global_object = this->global_object();
// 2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNames.prototype%", « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »).
auto* display_names = ordinary_create_from_constructor<DisplayNames>(global_object, new_target, &GlobalObject::intl_display_names_prototype);
if (vm.exception())
return {};
// 28. Return displayNames.
return display_names;
}
}