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LibJS: Implement Intl.Locale.prototype.region

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Timothy Flynn 2021-09-02 08:25:20 -04:00 committed by Linus Groh
parent 349fd06b86
commit 32825107de
Notes: sideshowbarker 2024-07-18 04:52:48 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/32825107de8
Pull-request: https://github.com/SerenityOS/serenity/pull/9749
Reviewed-by: https://github.com/linusg ✅
3 changed files with 46 additions and 0 deletions
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24
Userland/Libraries/LibJS/Runtime/Intl/LocalePrototype.cpp
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@ -55,6 +55,7 @@ void LocalePrototype::initialize(GlobalObject& global_object)
define_native_accessor(vm.names.numeric, numeric, {}, Attribute::Configurable);
define_native_accessor(vm.names.language, language, {}, Attribute::Configurable);
define_native_accessor(vm.names.script, script, {}, Attribute::Configurable);
define_native_accessor(vm.names.region, region, {}, Attribute::Configurable);
}
// 14.3.5 Intl.Locale.prototype.toString ( ), https://tc39.es/ecma402/#sec-Intl.Locale.prototype.toString
@ -167,4 +168,27 @@ JS_DEFINE_NATIVE_GETTER(LocalePrototype::script)
return js_string(vm, *locale->language_id.script);
}
// 14.3.15 get Intl.Locale.prototype.region, https://tc39.es/ecma402/#sec-Intl.Locale.prototype.region
JS_DEFINE_NATIVE_GETTER(LocalePrototype::region)
{
// 1. Let loc be the this value.
// 2. Perform ? RequireInternalSlot(loc, [[InitializedLocale]]).
auto* locale_object = typed_this(global_object);
if (!locale_object)
return {};
// 3. Let locale be loc.[[Locale]].
auto locale = Unicode::parse_unicode_locale_id(locale_object->locale());
// 4. Assert: locale matches the unicode_locale_id production.
VERIFY(locale.has_value());
// 5. If the unicode_language_id production of locale does not contain the ["-" unicode_region_subtag] sequence, return undefined.
if (!locale->language_id.region.has_value())
return js_undefined();
// 6. Return the substring of locale corresponding to the unicode_region_subtag production of the unicode_language_id.
return js_string(vm, *locale->language_id.region);
}
}

1
Userland/Libraries/LibJS/Runtime/Intl/LocalePrototype.h
View file

@ -30,6 +30,7 @@ private:
JS_DECLARE_NATIVE_GETTER(numeric);
JS_DECLARE_NATIVE_GETTER(language);
JS_DECLARE_NATIVE_GETTER(script);
JS_DECLARE_NATIVE_GETTER(region);
};
}

21
Userland/Libraries/LibJS/Tests/builtins/Intl/Locale/Locale.prototype.region.js Normal file
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@ -0,0 +1,21 @@
describe("errors", () => {
test("called on non-Locale object", () => {
expect(() => {
Intl.Locale.prototype.region;
}).toThrowWithMessage(TypeError, "Not a Intl.Locale object");
});
});
describe("normal behavior", () => {
test("basic functionality", () => {
expect(new Intl.Locale("en").region).toBeUndefined();
expect(new Intl.Locale("en-Latn").region).toBeUndefined();
expect(new Intl.Locale("en-GB").region).toBe("GB");
expect(new Intl.Locale("en", { script: "Latn" }).region).toBeUndefined();
expect(new Intl.Locale("en", { region: "GB" }).region).toBe("GB");
expect(new Intl.Locale("en-u-ca-abc").region).toBeUndefined();
expect(new Intl.Locale("en", { calendar: "abc" }).region).toBeUndefined();
expect(new Intl.Locale("en-x-abcd").region).toBeUndefined();
});
});