@formatjs/intl-listformat - npm Package Compare versions

Comparing version 6.2.6 to 6.3.0

index.js

@@ -5,2 +5,3 @@ "use strict";
 var ecma402_abstract_1 = require("@formatjs/ecma402-abstract");
+var intl_localematcher_1 = require("@formatjs/intl-localematcher");
 function validateInstance(instance, method) {
@@ -103,3 +104,3 @@ if (!(instance instanceof ListFormat)) {
         var localeData = ListFormat.localeData;
-        var r = ecma402_abstract_1.ResolveLocale(ListFormat.availableLocales, requestedLocales, opt, ListFormat.relevantExtensionKeys, localeData, ListFormat.getDefaultLocale);
+        var r = intl_localematcher_1.ResolveLocale(ListFormat.availableLocales, requestedLocales, opt, ListFormat.relevantExtensionKeys, localeData, ListFormat.getDefaultLocale);
         ecma402_abstract_1.setInternalSlot(ListFormat.__INTERNAL_SLOT_MAP__, this, 'locale', r.locale);
@@ -106,0 +107,0 @@ var type = ecma402_abstract_1.GetOption(opts, 'type', 'string', ['conjunction', 'disjunction', 'unit'], 'conjunction');

lib/index.js

 import { __assign } from "tslib";
-import { GetOption, setInternalSlot, SupportedLocales, ResolveLocale, getInternalSlot, PartitionPattern, invariant, isLiteralPart, GetOptionsObject, CanonicalizeLocaleList, } from '@formatjs/ecma402-abstract';
+import { GetOption, setInternalSlot, SupportedLocales, getInternalSlot, PartitionPattern, invariant, isLiteralPart, GetOptionsObject, CanonicalizeLocaleList, } from '@formatjs/ecma402-abstract';
+import { ResolveLocale } from '@formatjs/intl-localematcher';
 function validateInstance(instance, method) {
@@ -4,0 +5,0 @@ if (!(instance instanceof ListFormat)) {

lib/should-polyfill.d.ts

@@ -1,2 +0,2 @@
-export declare function shouldPolyfill(): boolean;
+export declare function shouldPolyfill(locale?: string | string[]): boolean;
 //# sourceMappingURL=should-polyfill.d.ts.map

lib/should-polyfill.js

@@ -1,3 +0,11 @@
-export function shouldPolyfill() {
-    return !('ListFormat' in Intl);
+function supportedLocalesOf(locale) {
+    if (!locale) {
+        return true;
+    }
+    var locales = Array.isArray(locale) ? locale : [locale];
+    return (Intl.ListFormat.supportedLocalesOf(locales).length ===
+        locales.length);
 }
+export function shouldPolyfill(locale) {
+    return !('ListFormat' in Intl) || !supportedLocalesOf(locale);
+}

package.json

 {
   "name": "@formatjs/intl-listformat",
-  "version": "6.2.6",
+  "version": "6.3.0",
   "description": "Formats JS list in a i18n-safe way",
@@ -22,3 +22,4 @@ "keywords": [
   "dependencies": {
-    "@formatjs/ecma402-abstract": "1.9.4",
+    "@formatjs/ecma402-abstract": "1.9.5",
+    "@formatjs/intl-localematcher": "0.2.18",
     "tslib": "^2.1.0"
@@ -25,0 +26,0 @@ },

polyfill.iife.js

 (function() {
+  var __create = Object.create;
+  var __defProp = Object.defineProperty;
+  var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
+  var __getOwnPropNames = Object.getOwnPropertyNames;
+  var __getProtoOf = Object.getPrototypeOf;
+  var __hasOwnProp = Object.prototype.hasOwnProperty;
+  var __markAsModule = function(target) {
+    return __defProp(target, "__esModule", {value: true});
+  };
+  var __commonJS = function(cb, mod) {
+    return function __require() {
+      return mod || (0, cb[Object.keys(cb)[0]])((mod = {exports: {}}).exports, mod), mod.exports;
+    };
+  };
+  var __reExport = function(target, module, desc) {
+    if (module && typeof module === "object" || typeof module === "function")
+      for (var keys = __getOwnPropNames(module), i = 0, n = keys.length, key; i < n; i++) {
+        key = keys[i];
+        if (!__hasOwnProp.call(target, key) && key !== "default")
+          __defProp(target, key, {get: function(k) {
+            return module[k];
+          }.bind(null, key), enumerable: !(desc = __getOwnPropDesc(module, key)) || desc.enumerable});
+      }
+    return target;
+  };
+  var __toModule = function(module) {
+    return __reExport(__markAsModule(__defProp(module != null ? __create(__getProtoOf(module)) : {}, "default", module && module.__esModule && "default" in module ? {get: function() {
+      return module.default;
+    }, enumerable: true} : {value: module, enumerable: true})), module);
+  };
+
+  // bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/utils.js
+  var require_utils = __commonJS({
+    "bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/utils.js": function(exports) {
+      "use strict";
+      Object.defineProperty(exports, "__esModule", {value: true});
+      exports.invariant = exports.UNICODE_EXTENSION_SEQUENCE_REGEX = void 0;
+      exports.UNICODE_EXTENSION_SEQUENCE_REGEX = /-u(?:-[0-9a-z]{2,8})+/gi;
+      function invariant2(condition, message, Err) {
+        if (Err === void 0) {
+          Err = Error;
+        }
+        if (!condition) {
+          throw new Err(message);
+        }
+      }
+      exports.invariant = invariant2;
+    }
+  });
+
+  // bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/BestAvailableLocale.js
+  var require_BestAvailableLocale = __commonJS({
+    "bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/BestAvailableLocale.js": function(exports) {
+      "use strict";
+      Object.defineProperty(exports, "__esModule", {value: true});
+      exports.BestAvailableLocale = void 0;
+      function BestAvailableLocale(availableLocales, locale) {
+        var candidate = locale;
+        while (true) {
+          if (availableLocales.has(candidate)) {
+            return candidate;
+          }
+          var pos = candidate.lastIndexOf("-");
+          if (!~pos) {
+            return void 0;
+          }
+          if (pos >= 2 && candidate[pos - 2] === "-") {
+            pos -= 2;
+          }
+          candidate = candidate.slice(0, pos);
+        }
+      }
+      exports.BestAvailableLocale = BestAvailableLocale;
+    }
+  });
+
+  // bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/LookupMatcher.js
+  var require_LookupMatcher = __commonJS({
+    "bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/LookupMatcher.js": function(exports) {
+      "use strict";
+      Object.defineProperty(exports, "__esModule", {value: true});
+      exports.LookupMatcher = void 0;
+      var utils_1 = require_utils();
+      var BestAvailableLocale_1 = require_BestAvailableLocale();
+      function LookupMatcher(availableLocales, requestedLocales, getDefaultLocale) {
+        var result = {locale: ""};
+        for (var _i = 0, requestedLocales_1 = requestedLocales; _i < requestedLocales_1.length; _i++) {
+          var locale = requestedLocales_1[_i];
+          var noExtensionLocale = locale.replace(utils_1.UNICODE_EXTENSION_SEQUENCE_REGEX, "");
+          var availableLocale = BestAvailableLocale_1.BestAvailableLocale(availableLocales, noExtensionLocale);
+          if (availableLocale) {
+            result.locale = availableLocale;
+            if (locale !== noExtensionLocale) {
+              result.extension = locale.slice(noExtensionLocale.length + 1, locale.length);
+            }
+            return result;
+          }
+        }
+        result.locale = getDefaultLocale();
+        return result;
+      }
+      exports.LookupMatcher = LookupMatcher;
+    }
+  });
+
+  // bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/BestFitMatcher.js
+  var require_BestFitMatcher = __commonJS({
+    "bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/BestFitMatcher.js": function(exports) {
+      "use strict";
+      Object.defineProperty(exports, "__esModule", {value: true});
+      exports.BestFitMatcher = void 0;
+      var BestAvailableLocale_1 = require_BestAvailableLocale();
+      var utils_1 = require_utils();
+      function BestFitMatcher(availableLocales, requestedLocales, getDefaultLocale) {
+        var minimizedAvailableLocaleMap = Array.from(availableLocales).reduce(function(all, l2) {
+          all[l2] = l2;
+          return all;
+        }, {});
+        var minimizedAvailableLocales = new Set();
+        availableLocales.forEach(function(locale2) {
+          var minimizedLocale = new Intl.Locale(locale2).minimize().toString();
+          minimizedAvailableLocaleMap[minimizedLocale] = locale2;
+          minimizedAvailableLocales.add(minimizedLocale);
+        });
+        var foundLocale;
+        for (var _i = 0, requestedLocales_1 = requestedLocales; _i < requestedLocales_1.length; _i++) {
+          var l = requestedLocales_1[_i];
+          if (foundLocale) {
+            break;
+          }
+          var noExtensionLocale = l.replace(utils_1.UNICODE_EXTENSION_SEQUENCE_REGEX, "");
+          if (availableLocales.has(noExtensionLocale)) {
+            foundLocale = noExtensionLocale;
+            break;
+          }
+          if (minimizedAvailableLocales.has(noExtensionLocale)) {
+            foundLocale = noExtensionLocale;
+            break;
+          }
+          var locale = new Intl.Locale(noExtensionLocale);
+          var maximizedRequestedLocale = locale.maximize().toString();
+          var minimizedRequestedLocale = locale.minimize().toString();
+          if (minimizedAvailableLocales.has(minimizedRequestedLocale)) {
+            foundLocale = minimizedRequestedLocale;
+            break;
+          }
+          foundLocale = BestAvailableLocale_1.BestAvailableLocale(minimizedAvailableLocales, maximizedRequestedLocale);
+        }
+        return {
+          locale: foundLocale && minimizedAvailableLocaleMap[foundLocale] || getDefaultLocale()
+        };
+      }
+      exports.BestFitMatcher = BestFitMatcher;
+    }
+  });
+
+  // bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/UnicodeExtensionValue.js
+  var require_UnicodeExtensionValue = __commonJS({
+    "bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/UnicodeExtensionValue.js": function(exports) {
+      "use strict";
+      Object.defineProperty(exports, "__esModule", {value: true});
+      exports.UnicodeExtensionValue = void 0;
+      var utils_1 = require_utils();
+      function UnicodeExtensionValue(extension, key) {
+        utils_1.invariant(key.length === 2, "key must have 2 elements");
+        var size = extension.length;
+        var searchValue = "-" + key + "-";
+        var pos = extension.indexOf(searchValue);
+        if (pos !== -1) {
+          var start = pos + 4;
+          var end = start;
+          var k = start;
+          var done = false;
+          while (!done) {
+            var e = extension.indexOf("-", k);
+            var len = void 0;
+            if (e === -1) {
+              len = size - k;
+            } else {
+              len = e - k;
+            }
+            if (len === 2) {
+              done = true;
+            } else if (e === -1) {
+              end = size;
+              done = true;
+            } else {
+              end = e;
+              k = e + 1;
+            }
+          }
+          return extension.slice(start, end);
+        }
+        searchValue = "-" + key;
+        pos = extension.indexOf(searchValue);
+        if (pos !== -1 && pos + 3 === size) {
+          return "";
+        }
+        return void 0;
+      }
+      exports.UnicodeExtensionValue = UnicodeExtensionValue;
+    }
+  });
+
+  // bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/ResolveLocale.js
+  var require_ResolveLocale = __commonJS({
+    "bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/ResolveLocale.js": function(exports) {
+      "use strict";
+      Object.defineProperty(exports, "__esModule", {value: true});
+      exports.ResolveLocale = void 0;
+      var LookupMatcher_1 = require_LookupMatcher();
+      var BestFitMatcher_1 = require_BestFitMatcher();
+      var utils_1 = require_utils();
+      var UnicodeExtensionValue_1 = require_UnicodeExtensionValue();
+      function ResolveLocale3(availableLocales, requestedLocales, options, relevantExtensionKeys, localeData, getDefaultLocale) {
+        var matcher = options.localeMatcher;
+        var r;
+        if (matcher === "lookup") {
+          r = LookupMatcher_1.LookupMatcher(availableLocales, requestedLocales, getDefaultLocale);
+        } else {
+          r = BestFitMatcher_1.BestFitMatcher(availableLocales, requestedLocales, getDefaultLocale);
+        }
+        var foundLocale = r.locale;
+        var result = {locale: "", dataLocale: foundLocale};
+        var supportedExtension = "-u";
+        for (var _i = 0, relevantExtensionKeys_1 = relevantExtensionKeys; _i < relevantExtensionKeys_1.length; _i++) {
+          var key = relevantExtensionKeys_1[_i];
+          utils_1.invariant(foundLocale in localeData, "Missing locale data for " + foundLocale);
+          var foundLocaleData = localeData[foundLocale];
+          utils_1.invariant(typeof foundLocaleData === "object" && foundLocaleData !== null, "locale data " + key + " must be an object");
+          var keyLocaleData = foundLocaleData[key];
+          utils_1.invariant(Array.isArray(keyLocaleData), "keyLocaleData for " + key + " must be an array");
+          var value = keyLocaleData[0];
+          utils_1.invariant(typeof value === "string" || value === null, "value must be string or null but got " + typeof value + " in key " + key);
+          var supportedExtensionAddition = "";
+          if (r.extension) {
+            var requestedValue = UnicodeExtensionValue_1.UnicodeExtensionValue(r.extension, key);
+            if (requestedValue !== void 0) {
+              if (requestedValue !== "") {
+                if (~keyLocaleData.indexOf(requestedValue)) {
+                  value = requestedValue;
+                  supportedExtensionAddition = "-" + key + "-" + value;
+                }
+              } else if (~requestedValue.indexOf("true")) {
+                value = "true";
+                supportedExtensionAddition = "-" + key;
+              }
+            }
+          }
+          if (key in options) {
+            var optionsValue = options[key];
+            utils_1.invariant(typeof optionsValue === "string" || typeof optionsValue === "undefined" || optionsValue === null, "optionsValue must be String, Undefined or Null");
+            if (~keyLocaleData.indexOf(optionsValue)) {
+              if (optionsValue !== value) {
+                value = optionsValue;
+                supportedExtensionAddition = "";
+              }
+            }
+          }
+          result[key] = value;
+          supportedExtension += supportedExtensionAddition;
+        }
+        if (supportedExtension.length > 2) {
+          var privateIndex = foundLocale.indexOf("-x-");
+          if (privateIndex === -1) {
+            foundLocale = foundLocale + supportedExtension;
+          } else {
+            var preExtension = foundLocale.slice(0, privateIndex);
+            var postExtension = foundLocale.slice(privateIndex, foundLocale.length);
+            foundLocale = preExtension + supportedExtension + postExtension;
+          }
+          foundLocale = Intl.getCanonicalLocales(foundLocale)[0];
+        }
+        result.locale = foundLocale;
+        return result;
+      }
+      exports.ResolveLocale = ResolveLocale3;
+    }
+  });
+
+  // bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/LookupSupportedLocales.js
+  var require_LookupSupportedLocales = __commonJS({
+    "bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/abstract/LookupSupportedLocales.js": function(exports) {
+      "use strict";
+      Object.defineProperty(exports, "__esModule", {value: true});
+      exports.LookupSupportedLocales = void 0;
+      var utils_1 = require_utils();
+      var BestAvailableLocale_1 = require_BestAvailableLocale();
+      function LookupSupportedLocales2(availableLocales, requestedLocales) {
+        var subset = [];
+        for (var _i = 0, requestedLocales_1 = requestedLocales; _i < requestedLocales_1.length; _i++) {
+          var locale = requestedLocales_1[_i];
+          var noExtensionLocale = locale.replace(utils_1.UNICODE_EXTENSION_SEQUENCE_REGEX, "");
+          var availableLocale = BestAvailableLocale_1.BestAvailableLocale(availableLocales, noExtensionLocale);
+          if (availableLocale) {
+            subset.push(availableLocale);
+          }
+        }
+        return subset;
+      }
+      exports.LookupSupportedLocales = LookupSupportedLocales2;
+    }
+  });
+
+  // bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/index.js
+  var require_intl_localematcher = __commonJS({
+    "bazel-out/darwin-fastbuild/bin/packages/intl-localematcher/index.js": function(exports) {
+      "use strict";
+      Object.defineProperty(exports, "__esModule", {value: true});
+      exports.ResolveLocale = exports.LookupSupportedLocales = exports.match = void 0;
+      var ResolveLocale_1 = require_ResolveLocale();
+      function match(requestedLocales, availableLocales, defaultLocale, opts) {
+        var locales = availableLocales.reduce(function(all, l) {
+          all.add(l);
+          return all;
+        }, new Set());
+        return ResolveLocale_1.ResolveLocale(locales, requestedLocales, {
+          localeMatcher: (opts === null || opts === void 0 ? void 0 : opts.algorithm) || "best fit"
+        }, [], {}, function() {
+          return defaultLocale;
+        }).locale;
+      }
+      exports.match = match;
+      var LookupSupportedLocales_1 = require_LookupSupportedLocales();
+      Object.defineProperty(exports, "LookupSupportedLocales", {enumerable: true, get: function() {
+        return LookupSupportedLocales_1.LookupSupportedLocales;
+      }});
+      var ResolveLocale_2 = require_ResolveLocale();
+      Object.defineProperty(exports, "ResolveLocale", {enumerable: true, get: function() {
+        return ResolveLocale_2.ResolveLocale;
+      }});
+    }
+  });
+
   // node_modules/tslib/tslib.es6.js
@@ -175,3 +509,2 @@ var extendStatics = function(d, b) {
   }
-  var UNICODE_EXTENSION_SEQUENCE_REGEX = /-u(?:-[0-9a-z]{2,8})+/gi;
   function invariant(condition, message, Err) {
@@ -193,180 +526,5 @@ if (Err === void 0) {
 
-  // bazel-out/darwin-fastbuild/bin/packages/ecma402-abstract/lib/BestAvailableLocale.js
-  function BestAvailableLocale(availableLocales, locale) {
-    var candidate = locale;
-    while (true) {
-      if (availableLocales.has(candidate)) {
-        return candidate;
-      }
-      var pos = candidate.lastIndexOf("-");
-      if (!~pos) {
-        return void 0;
-      }
-      if (pos >= 2 && candidate[pos - 2] === "-") {
-        pos -= 2;
-      }
-      candidate = candidate.slice(0, pos);
-    }
-  }
+  // bazel-out/darwin-fastbuild/bin/packages/ecma402-abstract/lib/NumberFormat/InitializeNumberFormat.js
+  var import_intl_localematcher = __toModule(require_intl_localematcher());
 
-  // bazel-out/darwin-fastbuild/bin/packages/ecma402-abstract/lib/LookupMatcher.js
-  function LookupMatcher(availableLocales, requestedLocales, getDefaultLocale) {
-    var result = {locale: ""};
-    for (var _i = 0, requestedLocales_1 = requestedLocales; _i < requestedLocales_1.length; _i++) {
-      var locale = requestedLocales_1[_i];
-      var noExtensionLocale = locale.replace(UNICODE_EXTENSION_SEQUENCE_REGEX, "");
-      var availableLocale = BestAvailableLocale(availableLocales, noExtensionLocale);
-      if (availableLocale) {
-        result.locale = availableLocale;
-        if (locale !== noExtensionLocale) {
-          result.extension = locale.slice(noExtensionLocale.length + 1, locale.length);
-        }
-        return result;
-      }
-    }
-    result.locale = getDefaultLocale();
-    return result;
-  }
-
-  // bazel-out/darwin-fastbuild/bin/packages/ecma402-abstract/lib/BestFitMatcher.js
-  function BestFitMatcher(availableLocales, requestedLocales, getDefaultLocale) {
-    var minimizedAvailableLocaleMap = {};
-    var minimizedAvailableLocales = new Set();
-    availableLocales.forEach(function(locale2) {
-      var minimizedLocale = new Intl.Locale(locale2).minimize().toString();
-      minimizedAvailableLocaleMap[minimizedLocale] = locale2;
-      minimizedAvailableLocales.add(minimizedLocale);
-    });
-    var foundLocale;
-    for (var _i = 0, requestedLocales_1 = requestedLocales; _i < requestedLocales_1.length; _i++) {
-      var l = requestedLocales_1[_i];
-      if (foundLocale) {
-        break;
-      }
-      var noExtensionLocale = l.replace(UNICODE_EXTENSION_SEQUENCE_REGEX, "");
-      if (availableLocales.has(noExtensionLocale)) {
-        foundLocale = noExtensionLocale;
-        break;
-      }
-      if (minimizedAvailableLocales.has(noExtensionLocale)) {
-        foundLocale = minimizedAvailableLocaleMap[noExtensionLocale];
-        break;
-      }
-      var locale = new Intl.Locale(noExtensionLocale);
-      var maximizedRequestedLocale = locale.maximize().toString();
-      var minimizedRequestedLocale = locale.minimize().toString();
-      if (minimizedAvailableLocales.has(minimizedRequestedLocale)) {
-        foundLocale = minimizedAvailableLocaleMap[minimizedRequestedLocale];
-        break;
-      }
-      foundLocale = BestAvailableLocale(minimizedAvailableLocales, maximizedRequestedLocale);
-    }
-    return {
-      locale: foundLocale || getDefaultLocale()
-    };
-  }
-
-  // bazel-out/darwin-fastbuild/bin/packages/ecma402-abstract/lib/UnicodeExtensionValue.js
-  function UnicodeExtensionValue(extension, key) {
-    invariant(key.length === 2, "key must have 2 elements");
-    var size = extension.length;
-    var searchValue = "-" + key + "-";
-    var pos = extension.indexOf(searchValue);
-    if (pos !== -1) {
-      var start = pos + 4;
-      var end = start;
-      var k = start;
-      var done = false;
-      while (!done) {
-        var e = extension.indexOf("-", k);
-        var len = void 0;
-        if (e === -1) {
-          len = size - k;
-        } else {
-          len = e - k;
-        }
-        if (len === 2) {
-          done = true;
-        } else if (e === -1) {
-          end = size;
-          done = true;
-        } else {
-          end = e;
-          k = e + 1;
-        }
-      }
-      return extension.slice(start, end);
-    }
-    searchValue = "-" + key;
-    pos = extension.indexOf(searchValue);
-    if (pos !== -1 && pos + 3 === size) {
-      return "";
-    }
-    return void 0;
-  }
-
-  // bazel-out/darwin-fastbuild/bin/packages/ecma402-abstract/lib/ResolveLocale.js
-  function ResolveLocale(availableLocales, requestedLocales, options, relevantExtensionKeys, localeData, getDefaultLocale) {
-    var matcher = options.localeMatcher;
-    var r;
-    if (matcher === "lookup") {
-      r = LookupMatcher(availableLocales, requestedLocales, getDefaultLocale);
-    } else {
-      r = BestFitMatcher(availableLocales, requestedLocales, getDefaultLocale);
-    }
-    var foundLocale = r.locale;
-    var result = {locale: "", dataLocale: foundLocale};
-    var supportedExtension = "-u";
-    for (var _i = 0, relevantExtensionKeys_1 = relevantExtensionKeys; _i < relevantExtensionKeys_1.length; _i++) {
-      var key = relevantExtensionKeys_1[_i];
-      invariant(foundLocale in localeData, "Missing locale data for " + foundLocale);
-      var foundLocaleData = localeData[foundLocale];
-      invariant(typeof foundLocaleData === "object" && foundLocaleData !== null, "locale data " + key + " must be an object");
-      var keyLocaleData = foundLocaleData[key];
-      invariant(Array.isArray(keyLocaleData), "keyLocaleData for " + key + " must be an array");
-      var value = keyLocaleData[0];
-      invariant(typeof value === "string" || value === null, "value must be string or null but got " + typeof value + " in key " + key);
-      var supportedExtensionAddition = "";
-      if (r.extension) {
-        var requestedValue = UnicodeExtensionValue(r.extension, key);
-        if (requestedValue !== void 0) {
-          if (requestedValue !== "") {
-            if (~keyLocaleData.indexOf(requestedValue)) {
-              value = requestedValue;
-              supportedExtensionAddition = "-" + key + "-" + value;
-            }
-          } else if (~requestedValue.indexOf("true")) {
-            value = "true";
-            supportedExtensionAddition = "-" + key;
-          }
-        }
-      }
-      if (key in options) {
-        var optionsValue = options[key];
-        invariant(typeof optionsValue === "string" || typeof optionsValue === "undefined" || optionsValue === null, "optionsValue must be String, Undefined or Null");
-        if (~keyLocaleData.indexOf(optionsValue)) {
-          if (optionsValue !== value) {
-            value = optionsValue;
-            supportedExtensionAddition = "";
-          }
-        }
-      }
-      result[key] = value;
-      supportedExtension += supportedExtensionAddition;
-    }
-    if (supportedExtension.length > 2) {
-      var privateIndex = foundLocale.indexOf("-x-");
-      if (privateIndex === -1) {
-        foundLocale = foundLocale + supportedExtension;
-      } else {
-        var preExtension = foundLocale.slice(0, privateIndex);
-        var postExtension = foundLocale.slice(privateIndex, foundLocale.length);
-        foundLocale = preExtension + supportedExtension + postExtension;
-      }
-      foundLocale = Intl.getCanonicalLocales(foundLocale)[0];
-    }
-    result.locale = foundLocale;
-    return result;
-  }
-
   // bazel-out/darwin-fastbuild/bin/packages/ecma402-abstract/lib/PartitionPattern.js
@@ -404,17 +562,4 @@ function PartitionPattern(pattern) {
 
-  // bazel-out/darwin-fastbuild/bin/packages/ecma402-abstract/lib/LookupSupportedLocales.js
-  function LookupSupportedLocales(availableLocales, requestedLocales) {
-    var subset = [];
-    for (var _i = 0, requestedLocales_1 = requestedLocales; _i < requestedLocales_1.length; _i++) {
-      var locale = requestedLocales_1[_i];
-      var noExtensionLocale = locale.replace(UNICODE_EXTENSION_SEQUENCE_REGEX, "");
-      var availableLocale = BestAvailableLocale(availableLocales, noExtensionLocale);
-      if (availableLocale) {
-        subset.push(availableLocale);
-      }
-    }
-    return subset;
-  }
-
   // bazel-out/darwin-fastbuild/bin/packages/ecma402-abstract/lib/SupportedLocales.js
+  var import_intl_localematcher2 = __toModule(require_intl_localematcher());
   function SupportedLocales(availableLocales, requestedLocales, options) {
@@ -427,5 +572,5 @@ var matcher = "best fit";
     if (matcher === "best fit") {
-      return LookupSupportedLocales(availableLocales, requestedLocales);
+      return (0, import_intl_localematcher2.LookupSupportedLocales)(availableLocales, requestedLocales);
     }
-    return LookupSupportedLocales(availableLocales, requestedLocales);
+    return (0, import_intl_localematcher2.LookupSupportedLocales)(availableLocales, requestedLocales);
   }
@@ -453,2 +598,3 @@
   // bazel-out/darwin-fastbuild/bin/packages/intl-listformat/lib/index.js
+  var import_intl_localematcher3 = __toModule(require_intl_localematcher());
   function validateInstance(instance, method) {
@@ -541,3 +687,3 @@ if (!(instance instanceof ListFormat)) {
       var localeData = ListFormat2.localeData;
-      var r = ResolveLocale(ListFormat2.availableLocales, requestedLocales, opt, ListFormat2.relevantExtensionKeys, localeData, ListFormat2.getDefaultLocale);
+      var r = (0, import_intl_localematcher3.ResolveLocale)(ListFormat2.availableLocales, requestedLocales, opt, ListFormat2.relevantExtensionKeys, localeData, ListFormat2.getDefaultLocale);
       setInternalSlot(ListFormat2.__INTERNAL_SLOT_MAP__, this, "locale", r.locale);
@@ -648,5 +794,12 @@ var type = GetOption(opts, "type", "string", ["conjunction", "disjunction", "unit"], "conjunction");
   // bazel-out/darwin-fastbuild/bin/packages/intl-listformat/lib/should-polyfill.js
-  function shouldPolyfill() {
-    return !("ListFormat" in Intl);
+  function supportedLocalesOf(locale) {
+    if (!locale) {
+      return true;
+    }
+    var locales = Array.isArray(locale) ? locale : [locale];
+    return Intl.ListFormat.supportedLocalesOf(locales).length === locales.length;
   }
+  function shouldPolyfill(locale) {
+    return !("ListFormat" in Intl) || !supportedLocalesOf(locale);
+  }
 
@@ -653,0 +806,0 @@ // bazel-out/darwin-fastbuild/bin/packages/intl-listformat/lib/polyfill.js

should-polyfill.d.ts

@@ -1,2 +0,2 @@
-export declare function shouldPolyfill(): boolean;
+export declare function shouldPolyfill(locale?: string | string[]): boolean;
 //# sourceMappingURL=should-polyfill.d.ts.map

should-polyfill.js

 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.shouldPolyfill = void 0;
-function shouldPolyfill() {
-    return !('ListFormat' in Intl);
+function supportedLocalesOf(locale) {
+    if (!locale) {
+        return true;
+    }
+    var locales = Array.isArray(locale) ? locale : [locale];
+    return (Intl.ListFormat.supportedLocalesOf(locales).length ===
+        locales.length);
 }
+function shouldPolyfill(locale) {
+    return !('ListFormat' in Intl) || !supportedLocalesOf(locale);
+}
 exports.shouldPolyfill = shouldPolyfill;

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Improved metrics

Total package byte prevSize

647519

increased by1.38%

Lines of code

5973

increased by2.88%

Worsened metrics

Dependency count

3

increased by50%

Dependency changes

• + Added@formatjs/intl-localematcher@0.2.18

• + Added@formatjs/ecma402-abstract@1.9.5(transitive)

• + Added@formatjs/intl-localematcher@0.2.18(transitive)

• - Removed@formatjs/ecma402-abstract@1.9.4(transitive)

• Updated@formatjs/ecma402-abstract@1.9.5