feat(common): expose getLocaleCurrencyCode publicly (#34810)

It was previously defined in core without being exposed publicly, whereas `getLocaleCurrencyName` and `getLocaleCurrencySymbol` were defined in common, and publicly exposed.

This commit now privately exposes `ɵgetLocaleCurrencyCode` from core, and reexports it publicly from common.

PR Close #34810

packages/common/src/common.ts

@@ -17,7 +17,7 @@ export {formatDate} from './i18n/format_date';
 export {formatCurrency, formatNumber, formatPercent} from './i18n/format_number';
 export {NgLocaleLocalization, NgLocalization} from './i18n/localization';
 export {registerLocaleData} from './i18n/locale_data';
-export {Plural, NumberFormatStyle, FormStyle, Time, TranslationWidth, FormatWidth, NumberSymbol, WeekDay, getNumberOfCurrencyDigits, getCurrencySymbol, getLocaleDayPeriods, getLocaleDayNames, getLocaleMonthNames, getLocaleId, getLocaleEraNames, getLocaleWeekEndRange, getLocaleFirstDayOfWeek, getLocaleDateFormat, getLocaleDateTimeFormat, getLocaleExtraDayPeriodRules, getLocaleExtraDayPeriods, getLocalePluralCase, getLocaleTimeFormat, getLocaleNumberSymbol, getLocaleNumberFormat, getLocaleCurrencyName, getLocaleCurrencySymbol, getLocaleDirection} from './i18n/locale_data_api';
+export {Plural, NumberFormatStyle, FormStyle, Time, TranslationWidth, FormatWidth, NumberSymbol, WeekDay, getNumberOfCurrencyDigits, getCurrencySymbol, getLocaleDayPeriods, getLocaleDayNames, getLocaleMonthNames, getLocaleId, getLocaleEraNames, getLocaleWeekEndRange, getLocaleFirstDayOfWeek, getLocaleDateFormat, getLocaleDateTimeFormat, getLocaleExtraDayPeriodRules, getLocaleExtraDayPeriods, getLocalePluralCase, getLocaleTimeFormat, getLocaleNumberSymbol, getLocaleNumberFormat, getLocaleCurrencyCode, getLocaleCurrencyName, getLocaleCurrencySymbol, getLocaleDirection} from './i18n/locale_data_api';
 export {parseCookieValue as ɵparseCookieValue} from './cookie';
 export {CommonModule} from './common_module';
 export {NgClass, NgClassBase, NgForOf, NgForOfContext, NgIf, NgIfContext, NgPlural, NgPluralCase, NgStyle, NgStyleBase, NgSwitch, NgSwitchCase, NgSwitchDefault, NgTemplateOutlet, NgComponentOutlet} from './directives/index';

packages/common/src/i18n/locale_data_api.ts

@@ -6,9 +6,11 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {ɵCurrencyIndex, ɵExtraLocaleDataIndex, ɵLocaleDataIndex, ɵfindLocaleData, ɵgetLocalePluralCase} from '@angular/core';
+import {ɵCurrencyIndex, ɵExtraLocaleDataIndex, ɵLocaleDataIndex, ɵfindLocaleData, ɵgetLocaleCurrencyCode, ɵgetLocalePluralCase} from '@angular/core';
+
 import {CURRENCIES_EN, CurrenciesSymbols} from './currencies';
 
+
 /**
  * Format styles that can be used to represent numbers.
  * @see `getLocaleNumberFormat()`.
@@ -473,6 +475,20 @@ export function getLocaleCurrencyName(locale: string): string|null {
   return data[ɵLocaleDataIndex.CurrencyName] || null;
 }
 
+/**
+ * Retrieves the default currency code for the given locale.
+ *
+ * The default is defined as the first currency which is still in use.
+ *
+ * @param locale The code of the locale whose currency code we want.
+ * @returns The code of the default currency for the given locale.
+ *
+ * @publicApi
+ */
+export function getLocaleCurrencyCode(locale: string): string|null {
+  return ɵgetLocaleCurrencyCode(locale);
+}
+
 /**
  * Retrieves the currency values for a given locale.
  * @param locale A locale code for the locale format rules to use.

packages/core/src/core_private_export.ts

@@ -33,5 +33,5 @@ export {makeDecorator as ɵmakeDecorator} from './util/decorators';
 export {isObservable as ɵisObservable, isPromise as ɵisPromise} from './util/lang';
 export {clearOverrides as ɵclearOverrides, initServicesIfNeeded as ɵinitServicesIfNeeded, overrideComponentView as ɵoverrideComponentView, overrideProvider as ɵoverrideProvider} from './view/index';
 export {NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR as ɵNOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR} from './view/provider';
-export {LocaleDataIndex as ɵLocaleDataIndex, CurrencyIndex as ɵCurrencyIndex, ExtraLocaleDataIndex as ɵExtraLocaleDataIndex, getLocalePluralCase as ɵgetLocalePluralCase, findLocaleData as ɵfindLocaleData, registerLocaleData as ɵregisterLocaleData, unregisterAllLocaleData as ɵunregisterLocaleData} from './i18n/locale_data_api';
+export {LocaleDataIndex as ɵLocaleDataIndex, CurrencyIndex as ɵCurrencyIndex, ExtraLocaleDataIndex as ɵExtraLocaleDataIndex, getLocaleCurrencyCode as ɵgetLocaleCurrencyCode, getLocalePluralCase as ɵgetLocalePluralCase, findLocaleData as ɵfindLocaleData, registerLocaleData as ɵregisterLocaleData, unregisterAllLocaleData as ɵunregisterLocaleData} from './i18n/locale_data_api';
 export {allowSanitizationBypassAndThrow as ɵallowSanitizationBypassAndThrow, getSanitizationBypassType as ɵgetSanitizationBypassType, BypassType as ɵBypassType, unwrapSafeValue as ɵunwrapSafeValue, SafeHtml as ɵSafeHtml, SafeResourceUrl as ɵSafeResourceUrl, SafeScript as ɵSafeScript, SafeStyle as ɵSafeStyle, SafeUrl as ɵSafeUrl, SafeValue as ɵSafeValue} from './sanitization/bypass';

packages/core/src/i18n/locale_data_api.ts

@@ -71,7 +71,6 @@ export function findLocaleData(locale: string): any {
  * @param locale The code of the locale whose currency code we want.
  * @returns The code of the default currency for the given locale.
  *
- * @publicApi
  */
 export function getLocaleCurrencyCode(locale: string): string|null {
   const data = findLocaleData(locale);

tools/public_api_guard/common/common.d.ts

@@ -51,6 +51,8 @@ export declare enum FormStyle {
 
 export declare function getCurrencySymbol(code: string, format: 'wide' | 'narrow', locale?: string): string;
 
+export declare function getLocaleCurrencyCode(locale: string): string | null;
+
 export declare function getLocaleCurrencyName(locale: string): string | null;
 
 export declare function getLocaleCurrencySymbol(locale: string): string | null;