constructor(filePath, source) {
        this.path = filePath;
        this.relativePath = path.relative(LOCALES_ROOT, filePath);
        this.source = source;
        this.parsed = JSON.parse(source);
        this.locale = this._extractLocale(filePath);
        /** @private */
        this._analysis = null;
    }
@param {string} filePath
@param {string} source