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https://github.com/RGBCube/serenity
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LibJS: Implement Intl.getCanonicalLocales
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4 changed files with 103 additions and 0 deletions
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@ -175,6 +175,7 @@ namespace JS {
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P(get) \
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P(getBigInt64) \
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P(getBigUint64) \
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P(getCanonicalLocales) \
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P(getDate) \
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P(getDay) \
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P(getFloat32) \
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@ -4,7 +4,9 @@
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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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/DisplayNamesConstructor.h>
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#include <LibJS/Runtime/Intl/Intl.h>
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@ -27,6 +29,27 @@ void Intl::initialize(GlobalObject& global_object)
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_direct_property(vm.names.DisplayNames, global_object.intl_display_names_constructor(), attr);
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define_native_function(vm.names.getCanonicalLocales, get_canonical_locales, 1, attr);
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}
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// 8.3.1 Intl.getCanonicalLocales ( locales ), https://tc39.es/ecma402/#sec-intl.getcanonicallocales
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JS_DEFINE_NATIVE_FUNCTION(Intl::get_canonical_locales)
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{
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auto locales = vm.argument(0);
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// 1. Let ll be ? CanonicalizeLocaleList(locales).
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auto locale_list = canonicalize_locale_list(global_object, locales);
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if (vm.exception())
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return {};
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MarkedValueList marked_locale_list { vm.heap() };
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marked_locale_list.ensure_capacity(locale_list.size());
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for (auto& locale : locale_list)
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marked_locale_list.append(js_string(vm, move(locale)));
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// 2. Return CreateArrayFromList(ll).
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return Array::create_from(global_object, marked_locale_list);
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}
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}
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@ -17,6 +17,9 @@ public:
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explicit Intl(GlobalObject&);
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virtual void initialize(GlobalObject&) override;
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virtual ~Intl() override = default;
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private:
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JS_DECLARE_NATIVE_FUNCTION(get_canonical_locales);
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};
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}
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@ -0,0 +1,76 @@
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describe("errors", () => {
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test("invalid tag", () => {
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expect(() => {
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Intl.getCanonicalLocales("EN_US");
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}).toThrowWithMessage(RangeError, "EN_US is not a structurally valid language tag");
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});
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test("root tag", () => {
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expect(() => {
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Intl.getCanonicalLocales("root");
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}).toThrowWithMessage(RangeError, "root is not a structurally valid language tag");
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});
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test("no language tag", () => {
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expect(() => {
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Intl.getCanonicalLocales("Latn");
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}).toThrowWithMessage(RangeError, "Latn is not a structurally valid language tag");
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});
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test("duplicate variant subtags", () => {
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expect(() => {
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Intl.getCanonicalLocales("en-POSIX-POSIX");
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}).toThrowWithMessage(
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RangeError,
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"en-POSIX-POSIX is not a structurally valid language tag"
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);
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});
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test("improperly placed separator", () => {
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expect(() => {
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Intl.getCanonicalLocales("en-");
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}).toThrowWithMessage(RangeError, "en- is not a structurally valid language tag");
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expect(() => {
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Intl.getCanonicalLocales("-en");
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}).toThrowWithMessage(RangeError, "-en is not a structurally valid language tag");
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expect(() => {
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Intl.getCanonicalLocales("en--US");
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}).toThrowWithMessage(RangeError, "en--US is not a structurally valid language tag");
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});
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test("non string or object locale", () => {
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expect(() => {
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Intl.getCanonicalLocales([true]);
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}).toThrowWithMessage(TypeError, "true is neither an object nor a string");
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});
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});
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describe("normal behavior", () => {
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test("length is 1", () => {
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expect(Intl.getCanonicalLocales).toHaveLength(1);
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});
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test("valid locales", () => {
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expect(Intl.getCanonicalLocales([])).toEqual([]);
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expect(Intl.getCanonicalLocales("EN-US")).toEqual(["en-US"]);
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expect(Intl.getCanonicalLocales(["EN-US"])).toEqual(["en-US"]);
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expect(Intl.getCanonicalLocales(["EN-US", "Fr"])).toEqual(["en-US", "fr"]);
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expect(Intl.getCanonicalLocales("EN-lATN-US")).toEqual(["en-Latn-US"]);
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expect(Intl.getCanonicalLocales("EN-US-POSIX")).toEqual(["en-US-posix"]);
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expect(Intl.getCanonicalLocales("EN-LATN-US-POSIX")).toEqual(["en-Latn-US-posix"]);
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});
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test("duplicate locales", () => {
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expect(Intl.getCanonicalLocales(["EN-US", "en-US", "en-us"])).toEqual(["en-US"]);
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});
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test("non-array object", () => {
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expect(Intl.getCanonicalLocales({})).toEqual([]);
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expect(Intl.getCanonicalLocales({ en: 123 })).toEqual([]);
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expect(Intl.getCanonicalLocales(undefined)).toEqual([]);
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expect(Intl.getCanonicalLocales(true)).toEqual([]);
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expect(Intl.getCanonicalLocales(123)).toEqual([]);
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});
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});
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