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misskey/src/client/scripts/i18n.ts

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// Notice: Service Workerでも使用します
export class I18n<T extends Record<string, any>> {
public locale: T;
constructor(locale: T) {
this.locale = locale;
if (_DEV_) {
console.log('i18n', this.locale);
}
//#region BIND
this.t = this.t.bind(this);
//#endregion
}
// string にしているのは、ドット区切りでのパス指定を許可するため
// なるべくこのメソッド使うよりもlocale直接参照の方がvueのキャッシュ効いてパフォーマンスが良いかも
public t(key: string, args?: Record<string, any>): string {
try {
let str = key.split('.').reduce((o, i) => o[i], this.locale) as string;
if (_DEV_) {
if (!str.includes('{')) {
console.warn(`i18n: '${key}' has no any arg. so ref prop directly instead of call this method.`);
}
}
if (args) {
for (const [k, v] of Object.entries(args)) {
str = str.replace(`{${k}}`, v);
}
}
return str;
} catch (e) {
if (_DEV_) {
console.warn(`missing localization '${key}'`);
return `⚠'${key}'⚠`;
}
return key;
}
}
}