Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 325456987d1d6270880f79c825d23f0a7dc631b9
https://github.com/WebKit/WebKit/commit/325456987d1d6270880f79c825d23f0a7dc631b9
Author: Yusuke Suzuki <[email protected]>
Date: 2026-04-18 (Sat, 18 Apr 2026)
Changed paths:
M JSTests/test262/config.yaml
M Source/JavaScriptCore/runtime/IntlLocale.cpp
Log Message:
-----------
[JSC] Intl.Locale needs to canonicalize before override language
https://bugs.webkit.org/show_bug.cgi?id=312693
rdar://175092327
Reviewed by Sosuke Suzuki.
In https://tc39.es/ecma402/#sec-Intl.Locale, step 13
CanonicalizeUnicodeLocaleId needs to be called before UpdateLanguageId.
So we add canonicalization before UpdateLanguageId phase.
For new Intl.Locale("und-Armn-SU", {language: "ru"}):
- Before: und-Armn-SU -> override language -> ru-Armn-SU -> canonicalize ->
ru-Armn-RU (wrong)
- After: und-Armn-SU -> canonicalize -> und-Armn-AM -> override language ->
ru-Armn-AM -> canonicalize -> ru-Armn-AM
* JSTests/test262/config.yaml:
* Source/JavaScriptCore/runtime/IntlLocale.cpp:
(JSC::LocaleIDBuilder::canonicalize):
(JSC::IntlLocale::initializeLocale):
Canonical link: https://commits.webkit.org/311538@main
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