Class RegExpEvaluator

src/util/conditionalExpression.ts:173–196

class RegExpEvaluator implements FilterComparator {
    private _condVal: RegExp;

    constructor(rVal: unknown) {
        // Support condVal: RegExp | string
        const condValue = this._condVal = isString(rVal) ? new RegExp(rVal)
            : isRegExp(rVal) ? rVal as RegExp
            : null;
        if (condValue == null) {
            let errMsg = '';
            if (__DEV__) {
                errMsg = makePrintable('Illegal regexp', rVal, 'in');
            }
            throwError(errMsg);
        }
    }

    evaluate(lVal: unknown): boolean {
        const type = typeof lVal;
        return isString(type) ? this._condVal.test(lVal as string)
            : isNumber(type) ? this._condVal.test(lVal + '')
            : false;
    }
}