asn1-ts/dist/utils/isUniquelyTagged.mjs

ASN.1 encoding and decoding, including BER, CER, and DER.

export default function isUniquelyTagged(elements) {
    const finds = new Set([]);
    for (let i = 0; i < elements.length; i++) {
        const key = ((elements[i].tagClass << 30)
            + elements[i].tagNumber);
        if (finds.has(key)) {
            return false;
        }
        finds.add(key);
    }
    return true;
}