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build(common): inject deprecated getPluralCase for treeshaking (#19136)

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Fixes #19115
PR Close #19136
This commit is contained in:
Olivier Combe
2017-09-11 11:34:30 +02:00
committed by Matias Niemelä
parent bf94f878bc
commit 1aa8401ddf
5 changed files with 46 additions and 31 deletions
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12
packages/common/src/i18n/localization.ts
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@ -13,7 +13,7 @@ import {Plural, getLocalePluralCase} from './locale_data_api';
/**
* @deprecated from v5
*/
export const USE_V4_PLURALS = new InjectionToken<boolean>('UseV4Plurals');
export const DEPRECATED_PLURAL_FN = new InjectionToken<boolean>('UseV4Plurals');
/**
* @experimental
@ -60,13 +60,15 @@ export function getPluralCategory(
export class NgLocaleLocalization extends NgLocalization {
constructor(
@Inject(LOCALE_ID) protected locale: string,
@Optional() @Inject(USE_V4_PLURALS) protected useV4Plurals?: boolean) {
/** @deprecated from v5 */
@Optional() @Inject(DEPRECATED_PLURAL_FN) protected deprecatedPluralFn?:
((locale: string, value: number|string) => Plural)|null) {
super();
}
getPluralCategory(value: any, locale?: string): string {
const plural = this.useV4Plurals ? getPluralCase(locale || this.locale, value) :
getLocalePluralCase(locale || this.locale)(value);
const plural = this.deprecatedPluralFn ? this.deprecatedPluralFn(locale || this.locale, value) :
getLocalePluralCase(locale || this.locale)(value);
switch (plural) {
case Plural.Zero:
@ -91,7 +93,7 @@ export class NgLocaleLocalization extends NgLocalization {
* @deprecated from v5 the plural case function is in locale data files common/locales/*.ts
* @experimental
*/
function getPluralCase(locale: string, nLike: number | string): Plural {
export function getPluralCase(locale: string, nLike: number | string): Plural {
// TODO(vicb): lazy compute
if (typeof nLike === 'string') {
nLike = parseInt(<string>nLike, 10);