[Intl] prototype Intl.Locale.prototype.maximize/minimize

Bug: v8:7684
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I8ee5aa4a2f481bbe4e47ab3889a9a6084b6b2943
Reviewed-on: https://chromium-review.googlesource.com/1137927Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54519}

src/bootstrapper.cc

@@ -4534,6 +4534,10 @@ void Genesis::InitializeGlobal_harmony_locale() {
 
   SimpleInstallFunction(isolate(), prototype, "toString",
                         Builtins::kLocalePrototypeToString, 0, false);
+  SimpleInstallFunction(isolate(), prototype, "maximize",
+                        Builtins::kLocalePrototypeMaximize, 0, false);
+  SimpleInstallFunction(isolate(), prototype, "minimize",
+                        Builtins::kLocalePrototypeMinimize, 0, false);
   // Base locale getters.
   SimpleInstallGetter(isolate(), prototype,
                       factory()->InternalizeUtf8String("language"),

src/builtins/builtins-definitions.h

@@ -1341,6 +1341,10 @@ namespace internal {
   CPP(LocalePrototypeNumeric)                                          \
   CPP(LocalePrototypeNumberingSystem)                                  \
   CPP(LocalePrototypeToString)                                         \
+  /* ecma402 #sec-Intl.Locale.prototype.maximize */                    \
+  CPP(LocalePrototypeMaximize)                                         \
+  /* ecma402 #sec-Intl.Locale.prototype.minimize */                    \
+  CPP(LocalePrototypeMinimize)                                         \
   /* ecma402 #sec-number-format-functions */                           \
   CPP(NumberFormatInternalFormatNumber)                                \
   /* ecma402 #sec-intl.numberformat.prototype.format */                \

src/builtins/builtins-intl.cc

@@ -593,93 +593,87 @@ BUILTIN(NumberFormatInternalFormatNumber) {
                                         isolate, number_format_holder, number));
 }
 
-// Intl.Locale implementation
-BUILTIN(LocaleConstructor) {
-  HandleScope scope(isolate);
-  if (args.new_target()->IsUndefined(isolate)) {  // [[Call]]
-    THROW_NEW_ERROR_RETURN_FAILURE(
-        isolate, NewTypeError(MessageTemplate::kConstructorNotFunction,
-                              isolate->factory()->NewStringFromAsciiChecked(
-                                  "Intl.Locale")));
-  } else {  // [[Construct]]
-    Handle<JSFunction> target = args.target();
-    Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target());
-
-    Handle<JSObject> result;
-    ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                       JSObject::New(target, new_target));
-
-    Handle<Object> tag = args.atOrUndefined(isolate, 1);
-    Handle<Object> options = args.atOrUndefined(isolate, 2);
+namespace {
 
-    // First parameter is a locale, as a string/object. Can't be empty.
-    if (!tag->IsName() && !tag->IsJSReceiver()) {
-      THROW_NEW_ERROR_RETURN_FAILURE(
-          isolate, NewTypeError(MessageTemplate::kLocaleNotEmpty));
-    }
+MaybeHandle<JSLocale> CreateLocale(Isolate* isolate,
+                                   Handle<JSFunction> constructor,
+                                   Handle<JSReceiver> new_target,
+                                   Handle<Object> tag, Handle<Object> options) {
+  Handle<JSObject> result;
+  ASSIGN_RETURN_ON_EXCEPTION(isolate, result,
+                             JSObject::New(constructor, new_target), JSLocale);
 
-    Handle<String> locale_string;
-    if (tag->IsJSLocale() &&
-        Handle<JSLocale>::cast(tag)->locale()->IsString()) {
-      locale_string =
-          Handle<String>(Handle<JSLocale>::cast(tag)->locale(), isolate);
-    } else {
-      ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, locale_string,
-                                         Object::ToString(isolate, tag));
-    }
+  // First parameter is a locale, as a string/object. Can't be empty.
+  if (!tag->IsName() && !tag->IsJSReceiver()) {
+    THROW_NEW_ERROR(isolate, NewTypeError(MessageTemplate::kLocaleNotEmpty),
+                    JSLocale);
+  }
 
-    Handle<JSReceiver> options_object;
-    if (options->IsNullOrUndefined(isolate)) {
-      // Make empty options bag.
-      options_object = isolate->factory()->NewJSObjectWithNullProto();
-    } else {
-      ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, options_object,
-                                         Object::ToObject(isolate, options));
-    }
+  Handle<String> locale_string;
+  if (tag->IsJSLocale() && Handle<JSLocale>::cast(tag)->locale()->IsString()) {
+    locale_string =
+        Handle<String>(Handle<JSLocale>::cast(tag)->locale(), isolate);
+  } else {
+    ASSIGN_RETURN_ON_EXCEPTION(isolate, locale_string,
+                               Object::ToString(isolate, tag), JSLocale);
+  }
 
-    RETURN_RESULT_OR_FAILURE(
-        isolate,
-        JSLocale::InitializeLocale(isolate, Handle<JSLocale>::cast(result),
-                                   locale_string, options_object));
+  Handle<JSReceiver> options_object;
+  if (options->IsNullOrUndefined(isolate)) {
+    // Make empty options bag.
+    options_object = isolate->factory()->NewJSObjectWithNullProto();
+  } else {
+    ASSIGN_RETURN_ON_EXCEPTION(isolate, options_object,
+                               Object::ToObject(isolate, options), JSLocale);
   }
+
+  return JSLocale::InitializeLocale(isolate, Handle<JSLocale>::cast(result),
+                                    locale_string, options_object);
 }
 
-BUILTIN(RelativeTimeFormatConstructor) {
+}  // namespace
+
+BUILTIN(LocaleConstructor) {
   HandleScope scope(isolate);
-  // 1. If NewTarget is undefined, throw a TypeError exception.
   if (args.new_target()->IsUndefined(isolate)) {  // [[Call]]
     THROW_NEW_ERROR_RETURN_FAILURE(
         isolate, NewTypeError(MessageTemplate::kConstructorNotFunction,
-                              isolate->factory()->NewStringFromStaticChars(
-                                  "Intl.RelativeTimeFormat")));
+                              isolate->factory()->NewStringFromAsciiChecked(
+                                  "Intl.Locale")));
   }
   // [[Construct]]
   Handle<JSFunction> target = args.target();
   Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target());
 
-  Handle<JSObject> result;
-  // 2. Let relativeTimeFormat be
-  //    ! OrdinaryCreateFromConstructor(NewTarget,
-  //                                    "%RelativeTimeFormatPrototype%").
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
-                                     JSObject::New(target, new_target));
-
-  Handle<Object> locales = args.atOrUndefined(isolate, 1);
+  Handle<Object> tag = args.atOrUndefined(isolate, 1);
   Handle<Object> options = args.atOrUndefined(isolate, 2);
 
-  // 3. Return ? InitializeRelativeTimeFormat(relativeTimeFormat, locales,
-  //                                          options).
   RETURN_RESULT_OR_FAILURE(
-      isolate, JSRelativeTimeFormat::InitializeRelativeTimeFormat(
-                   isolate, Handle<JSRelativeTimeFormat>::cast(result), locales,
-                   options));
+      isolate, CreateLocale(isolate, target, new_target, tag, options));
 }
 
-BUILTIN(RelativeTimeFormatPrototypeResolvedOptions) {
+BUILTIN(LocalePrototypeMaximize) {
   HandleScope scope(isolate);
-  CHECK_RECEIVER(JSRelativeTimeFormat, format_holder,
-                 "Intl.RelativeTimeFormat.prototype.resolvedOptions");
-  return *JSRelativeTimeFormat::ResolvedOptions(isolate, format_holder);
+  CHECK_RECEIVER(JSLocale, locale_holder, "Intl.Locale.prototype.maximize");
+  Handle<JSFunction> constructor(
+      isolate->native_context()->intl_locale_function(), isolate);
+  RETURN_RESULT_OR_FAILURE(
+      isolate,
+      CreateLocale(isolate, constructor, constructor,
+                   JSLocale::Maximize(isolate, locale_holder->locale()),
+                   isolate->factory()->NewJSObjectWithNullProto()));
+}
+
+BUILTIN(LocalePrototypeMinimize) {
+  HandleScope scope(isolate);
+  CHECK_RECEIVER(JSLocale, locale_holder, "Intl.Locale.prototype.minimize");
+  Handle<JSFunction> constructor(
+      isolate->native_context()->intl_locale_function(), isolate);
+  RETURN_RESULT_OR_FAILURE(
+      isolate,
+      CreateLocale(isolate, constructor, constructor,
+                   JSLocale::Minimize(isolate, locale_holder->locale()),
+                   isolate->factory()->NewJSObjectWithNullProto()));
 }
 
 // Locale getters.
@@ -762,5 +756,43 @@ BUILTIN(LocalePrototypeToString) {
   return locale_holder->locale();
 }
 
+BUILTIN(RelativeTimeFormatConstructor) {
+  HandleScope scope(isolate);
+  // 1. If NewTarget is undefined, throw a TypeError exception.
+  if (args.new_target()->IsUndefined(isolate)) {  // [[Call]]
+    THROW_NEW_ERROR_RETURN_FAILURE(
+        isolate, NewTypeError(MessageTemplate::kConstructorNotFunction,
+                              isolate->factory()->NewStringFromStaticChars(
+                                  "Intl.RelativeTimeFormat")));
+  }
+  // [[Construct]]
+  Handle<JSFunction> target = args.target();
+  Handle<JSReceiver> new_target = Handle<JSReceiver>::cast(args.new_target());
+
+  Handle<JSObject> result;
+  // 2. Let relativeTimeFormat be
+  //    ! OrdinaryCreateFromConstructor(NewTarget,
+  //                                    "%RelativeTimeFormatPrototype%").
+  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
+                                     JSObject::New(target, new_target));
+
+  Handle<Object> locales = args.atOrUndefined(isolate, 1);
+  Handle<Object> options = args.atOrUndefined(isolate, 2);
+
+  // 3. Return ? InitializeRelativeTimeFormat(relativeTimeFormat, locales,
+  //                                          options).
+  RETURN_RESULT_OR_FAILURE(
+      isolate, JSRelativeTimeFormat::InitializeRelativeTimeFormat(
+                   isolate, Handle<JSRelativeTimeFormat>::cast(result), locales,
+                   options));
+}
+
+BUILTIN(RelativeTimeFormatPrototypeResolvedOptions) {
+  HandleScope scope(isolate);
+  CHECK_RECEIVER(JSRelativeTimeFormat, format_holder,
+                 "Intl.RelativeTimeFormat.prototype.resolvedOptions");
+  return *JSRelativeTimeFormat::ResolvedOptions(isolate, format_holder);
+}
+
 }  // namespace internal
 }  // namespace v8

src/objects/js-locale.cc

@@ -21,6 +21,7 @@
 #include "src/objects/intl-objects.h"
 #include "src/objects/js-locale-inl.h"
 #include "unicode/locid.h"
+#include "unicode/uloc.h"
 #include "unicode/unistr.h"
 #include "unicode/uvernum.h"
 #include "unicode/uversion.h"
@@ -301,5 +302,33 @@ MaybeHandle<JSLocale> JSLocale::InitializeLocale(Isolate* isolate,
   return locale_holder;
 }
 
+namespace {
+
+Handle<String> MorphLocale(Isolate* isolate, String* input,
+                           int32_t (*morph_func)(const char*, char*, int32_t,
+                                                 UErrorCode*)) {
+  Factory* factory = isolate->factory();
+  char localeBuffer[ULOC_FULLNAME_CAPACITY];
+  UErrorCode status = U_ZERO_ERROR;
+  DCHECK_NOT_NULL(morph_func);
+  int32_t length = (*morph_func)(input->ToCString().get(), localeBuffer,
+                                 ULOC_FULLNAME_CAPACITY, &status);
+  DCHECK(U_SUCCESS(status));
+  DCHECK_GT(length, 0);
+  std::string locale(localeBuffer, length);
+  std::replace(locale.begin(), locale.end(), '_', '-');
+  return factory->NewStringFromAsciiChecked(locale.c_str());
+}
+
+}  // namespace
+
+Handle<String> JSLocale::Maximize(Isolate* isolate, String* locale) {
+  return MorphLocale(isolate, locale, uloc_addLikelySubtags);
+}
+
+Handle<String> JSLocale::Minimize(Isolate* isolate, String* locale) {
+  return MorphLocale(isolate, locale, uloc_minimizeSubtags);
+}
+
 }  // namespace internal
 }  // namespace v8

src/objects/js-locale.h

@@ -30,6 +30,8 @@ class JSLocale : public JSObject {
                                                 Handle<JSLocale> locale_holder,
                                                 Handle<String> locale,
                                                 Handle<JSReceiver> options);
+  static Handle<String> Maximize(Isolate* isolate, String* locale);
+  static Handle<String> Minimize(Isolate* isolate, String* locale);
 
   DECL_CAST(JSLocale)
 

test/intl/locale/maximize_minimize.js

+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-locale
+
+// Make sure that maximize and minimize of all locales work reasonbly.
+
+assertEquals(new Intl.Locale("zh-TW").maximize().toString(), "zh-Hant-TW",
+    "zh-TW should maximize to zh-Hant-TW");
+assertEquals(new Intl.Locale("zh-Hant-TW").minimize().toString(), "zh-TW",
+    "zh-Hant-TW should minimize to zh-TW");
+assertEquals(new Intl.Locale("zh-Hans-CN").minimize().toString(), "zh",
+    "zh-Hans-CN should minimize to zh");
+assertEquals(new Intl.Locale("zh-CN").minimize().toString(), "zh",
+    "zh-CN should minimize to zh");
+assertEquals(new Intl.Locale("zh-Hans").minimize().toString(), "zh",
+    "zh-Hans should minimize to zh");
+
+function assertExpandRoundTrip(loc) {
+  assertEquals(
+      loc.toString(), loc.maximize().minimize().toString(), loc.toString());
+  assertEquals(
+      loc.toString(), loc.minimize().toString(), loc.toString());
+  assertTrue(
+      loc.maximize().toString().length > loc.toString().length, loc.toString());
+}
+
+var simpleLocales = [
+  "af", "agq", "ak", "am", "ar", "asa", "ast", "as", "az", "bas", "bem", "be",
+  "bez", "bg", "bm", "bn", "bo", "br", "brx", "bs", "ca", "ccp", "ce", "cgg",
+  "chr", "ckb", "cs", "cu", "cy", "dav", "da", "de", "dje", "dsb", "dua", "dyo",
+  "dz", "ebu", "ee", "el", "en", "eo", "es", "et", "eu", "ewo", "fa", "ff",
+  "fil", "fi", "fo", "fr", "fur", "fy", "ga", "gd", "gl", "gsw", "gu", "guz",
+  "gv", "haw", "ha", "he", "hi", "hr", "hsb", "hu", "hy", "id", "ig", "ii",
+  "is", "it", "ja", "jgo", "jmc", "kab", "kam", "ka", "kde", "kea", "khq", "ki",
+  "kkj", "kk", "kln", "kl", "km", "kn", "kok", "ko", "ksb", "ksf", "ksh", "ks",
+  "kw", "ky", "lag", "lb", "lg", "lkt", "ln", "lo", "lrc", "lt", "luo", "lu",
+  "luy", "lv", "mas", "mer", "mfe", "mgh", "mgo", "mg", "mk", "ml", "mn", "mr",
+  "ms", "mt", "mua", "my", "mzn", "naq", "nb", "nds", "nd", "ne", "nl", "nmg",
+  "nnh", "nn", "nus", "nyn", "om", "or", "os", "pa", "pl", "prg", "ps", "pt",
+  "qu", "rm", "rn", "rof", "ro", "ru", "rwk", "rw", "sah", "saq", "sbp", "sd",
+  "seh", "ses", "se", "sg", "shi", "si", "sk", "sl", "smn", "sn", "so", "sq",
+  "sr", "sv", "sw", "ta", "teo", "te", "tg", "th", "ti", "tk", "to", "tr", "tt",
+  "twq", "tzm", "ug", "uk", "ur", "uz", "vai", "vi", "vo", "vun", "wae", "wo",
+  "xog", "yav", "yi", "yo", "yue", "zgh", "zh", "zu"];
+for (var i = 0; i < simpleLocales.length; i++) {
+  assertExpandRoundTrip(new Intl.Locale(simpleLocales[i]));
+}
+
+function assertReduceRoundTrip(loc) {
+  assertEquals(
+      loc.minimize().toString(), loc.maximize().minimize().toString(),
+      loc.toString());
+  assertEquals(
+      loc.maximize().toString(), loc.minimize().maximize().toString(),
+      loc.toString());
+  assertTrue(
+      loc.maximize().toString().length >= loc.toString().length, loc.toString());
+  assertTrue(
+      loc.minimize().toString().length <= loc.toString().length, loc.toString());
+}
+
+var complexLocales = [
+  "af-NA", "af-ZA", "agq-CM", "ak-GH", "am-ET", "ar-001", "ar-AE", "ar-BH",
+  "ar-DJ", "ar-DZ", "ar-EG", "ar-EH", "ar-ER", "ar-IL", "ar-IQ", "ar-JO",
+  "ar-KM", "ar-KW", "ar-LB", "ar-LY", "ar-MA", "ar-MR", "ar-OM", "ar-PS",
+  "ar-QA", "ar-SA", "ar-SD", "ar-SO", "ar-SS", "ar-SY", "ar-TD", "ar-TN",
+  "ar-YE", "asa-TZ", "as-IN", "ast-ES", "az-Cyrl-AZ", "az-Cyrl", "az-Latn-AZ",
+  "az-Latn", "bas-CM", "be-BY", "bem-ZM", "bez-TZ", "bg-BG", "bm-ML", "bn-BD",
+  "bn-IN", "bo-CN", "bo-IN", "br-FR", "brx-IN", "bs-Cyrl-BA", "bs-Cyrl",
+  "bs-Latn-BA", "bs-Latn", "ca-AD", "ca-ES", "ca-FR", "ca-IT",
+  "ccp-BD", "ccp-IN", "ce-RU", "cgg-UG", "chr-US", "ckb-Arab-IQ", "ckb-Arab-IR",
+  "ckb-Arab", "ckb-IQ", "ckb-IR", "ckb-Latn-IQ", "ckb-Latn", "cs-CZ", "cu-RU",
+  "cy-GB", "da-DK", "da-GL", "dav-KE", "de-AT", "de-BE", "de-CH", "de-DE",
+  "de-IT", "de-LI", "de-LU", "dje-NE", "dsb-DE", "dua-CM", "dyo-SN", "dz-BT",
+  "ebu-KE", "ee-GH", "ee-TG", "el-CY", "el-GR", "en-001", "en-150", "en-AG",
+  "en-AI", "en-AS", "en-AT", "en-AU", "en-BB", "en-BE", "en-BI", "en-BM",
+  "en-BS", "en-BW", "en-BZ", "en-CA", "en-CC", "en-CH", "en-CK", "en-CM",
+  "en-CX", "en-CY", "en-DE", "en-DG", "en-DK", "en-DM", "en-ER", "en-FI",
+  "en-FJ", "en-FK", "en-FM", "en-GB", "en-GD", "en-GG", "en-GH", "en-GI",
+  "en-GM", "en-GU", "en-GY", "en-HK", "en-IE", "en-IL", "en-IM", "en-IN",
+  "en-IO", "en-JE", "en-JM", "en-KE", "en-KI", "en-KN", "en-KY", "en-LC",
+  "en-LR", "en-LS", "en-MG", "en-MH", "en-MO", "en-MP", "en-MS", "en-MT",
+  "en-MU", "en-MW", "en-MY", "en-NA", "en-NF", "en-NG", "en-NL", "en-NR",
+  "en-NU", "en-NZ", "en-PG", "en-PH", "en-PK", "en-PN", "en-PR", "en-PW",
+  "en-RW", "en-SB", "en-SC", "en-SD", "en-SE", "en-SG", "en-SH", "en-SI",
+  "en-SL", "en-SS", "en-SX", "en-SZ", "en-TC", "en-TK", "en-TO", "en-TT",
+  "en-TV", "en-TZ", "en-UG", "en-UM", "en-US", "en-VC",
+  "en-VG", "en-VI", "en-VU", "en-WS", "en-ZA", "en-ZM", "en-ZW", "eo-001",
+  "es-419", "es-AR", "es-BO", "es-BR", "es-BZ", "es-CL", "es-CO", "es-CR",
+  "es-CU", "es-DO", "es-EA", "es-EC", "es-ES", "es-GQ", "es-GT", "es-HN",
+  "es-IC", "es-MX", "es-NI", "es-PA", "es-PE", "es-PH", "es-PR", "es-PY",
+  "es-SV", "es-US", "es-UY", "es-VE", "et-EE", "eu-ES", "ewo-CM", "fa-AF",
+  "fa-IR", "ff-CM", "ff-GN", "ff-MR", "ff-SN", "fi-FI", "fil-PH", "fo-DK",
+  "fo-FO", "fr-BE", "fr-BF", "fr-BI", "fr-BJ", "fr-BL", "fr-CA", "fr-CD",
+  "fr-CF", "fr-CG", "fr-CH", "fr-CI", "fr-CM", "fr-DJ", "fr-DZ", "fr-FR",
+  "fr-GA", "fr-GF", "fr-GN", "fr-GP", "fr-GQ", "fr-HT", "fr-KM", "fr-LU",
+  "fr-MA", "fr-MC", "fr-MF", "fr-MG", "fr-ML", "fr-MQ", "fr-MR", "fr-MU",
+  "fr-NC", "fr-NE", "fr-PF", "fr-PM", "fr-RE", "fr-RW", "fr-SC", "fr-SN",
+  "fr-SY", "fr-TD", "fr-TG", "fr-TN", "fr-VU", "fr-WF", "fr-YT", "fur-IT",
+  "fy-NL", "ga-IE", "gd-GB", "gl-ES", "gsw-CH", "gsw-FR", "gsw-LI", "gu-IN",
+  "guz-KE", "gv-IM", "ha-GH", "ha-NE", "ha-NG", "haw-US", "he-IL", "hi-IN",
+  "hr-BA", "hr-HR", "hsb-DE", "hu-HU", "hy-AM", "id-ID", "ig-NG", "ii-CN",
+  "is-IS", "it-CH", "it-IT", "it-SM", "it-VA", "ja-JP", "jgo-CM", "jmc-TZ",
+  "kab-DZ", "ka-GE", "kam-KE", "kde-TZ", "kea-CV", "khq-ML", "ki-KE",
+  "kkj-CM", "kk-KZ", "kl-GL", "kln-KE", "km-KH", "kn-IN", "kok-IN", "ko-KP",
+  "ko-KR", "ksb-TZ", "ksf-CM", "ksh-DE", "ks-IN", "kw-GB", "ky-KG", "lag-TZ",
+  "lb-LU", "lg-UG", "lkt-US", "ln-AO", "ln-CD", "ln-CF", "ln-CG", "lo-LA",
+  "lrc-IQ", "lrc-IR", "lt-LT", "lu-CD", "luo-KE", "luy-KE", "lv-LV", "mas-KE",
+  "mas-TZ", "mer-KE", "mfe-MU", "mgh-MZ", "mg-MG", "mgo-CM", "mk-MK", "ml-IN",
+  "mn-MN", "mr-IN", "ms-BN", "ms-MY", "ms-SG", "mt-MT", "mua-CM", "my-MM",
+  "mzn-IR", "naq-NA", "nb-NO", "nb-SJ", "nds-DE", "nds-NL", "nd-ZW", "ne-IN",
+  "ne-NP", "nl-AW", "nl-BE", "nl-BQ", "nl-CW", "nl-NL", "nl-SR", "nl-SX",
+  "nmg-CM", "nnh-CM", "nn-NO", "nus-SS", "nyn-UG", "om-ET", "om-KE",
+  "or-IN", "os-GE", "os-RU", "pa-Arab-PK", "pa-Guru-IN", "pa-Guru",
+  "pl-PL", "prg-001", "ps-AF", "pt-AO", "pt-BR", "pt-CH", "pt-CV", "pt-GQ",
+  "pt-GW", "pt-LU", "pt-MO", "pt-MZ", "pt-PT", "pt-ST", "pt-TL", "qu-BO",
+  "qu-EC", "qu-PE", "rm-CH", "rn-BI", "rof-TZ", "ro-MD", "ro-RO", "ru-BY",
+  "ru-KG", "ru-KZ", "ru-MD", "ru-RU", "ru-UA", "rwk-TZ", "rw-RW", "sah-RU",
+  "saq-KE", "sbp-TZ", "sd-PK", "se-FI", "seh-MZ", "se-NO", "se-SE", "ses-ML",
+  "sg-CF", "shi-Latn-MA", "shi-Latn", "shi-Tfng-MA", "shi-Tfng", "si-LK",
+  "sk-SK", "sl-SI", "smn-FI", "sn-ZW", "so-DJ", "so-ET", "so-KE", "so-SO",
+  "sq-AL", "sq-MK", "sq-XK", "sr-Cyrl-BA", "sr-Cyrl-ME", "sr-Cyrl-RS",
+  "sr-Cyrl-XK", "sr-Cyrl", "sr-Latn-BA", "sr-Latn-ME", "sr-Latn-RS",
+  "sr-Latn-XK", "sr-Latn", "sv-AX", "sv-FI", "sv-SE", "sw-CD", "sw-KE",
+  "sw-TZ", "sw-UG", "ta-IN", "ta-LK", "ta-MY", "ta-SG", "te-IN", "teo-KE",
+  "teo-UG", "tg-TJ", "th-TH", "ti-ER", "ti-ET", "tk-TM", "to-TO", "tr-CY",
+  "tr-TR", "tt-RU", "twq-NE", "tzm-MA", "ug-CN", "uk-UA", "ur-IN", "ur-PK",
+  "uz-Arab-AF", "uz-Cyrl-UZ", "uz-Cyrl", "uz-Latn-UZ", "uz-Latn",
+  "vai-Latn-LR", "vai-Latn", "vai-Vaii-LR", "vai-Vaii", "vi-VN", "vo-001",
+  "vun-TZ", "wae-CH", "wo-SN", "xog-UG", "yav-CM", "yi-001", "yo-BJ", "yo-NG",
+  "yue-Hans-CN", "yue-Hant-HK", "yue-Hant", "zgh-MA", "zh-Hans-CN",
+  "zh-Hans-HK", "zh-Hans-MO", "zh-Hans-SG", "zh-Hans", "zh-Hant-HK",
+  "zh-Hant-MO", "zh-Hant-TW", "zu-ZA"];
+for (var i = 0; i < complexLocales.length; i++) {
+  assertReduceRoundTrip(new Intl.Locale(complexLocales[i]));
+}

test/test262/test262.status

@@ -467,12 +467,6 @@
   'intl402/Locale/invalid-tag-throws': [FAIL],
   'intl402/Locale/likely-subtags': [FAIL],
   'intl402/Locale/likely-subtags-grandfathered': [FAIL],
-  'intl402/Locale/prototype/maximize/length': [FAIL],
-  'intl402/Locale/prototype/maximize/name': [FAIL],
-  'intl402/Locale/prototype/maximize/prop-desc': [FAIL],
-  'intl402/Locale/prototype/minimize/length': [FAIL],
-  'intl402/Locale/prototype/minimize/name': [FAIL],
-  'intl402/Locale/prototype/minimize/prop-desc': [FAIL],
   'intl402/Locale/prototype/toStringTag/toStringTag': [FAIL],
   'intl402/Locale/prototype/toStringTag/toString': [FAIL],