export function joinHashesPairwise()

in src/qldb/Verifier.ts [114:131]

• 18 lines of code
• 4 McCabe index (conditional complexity)

export function joinHashesPairwise(h1: Uint8Array, h2: Uint8Array): Uint8Array {
    if (h1.length === 0) {
        return h2;
    }
    if (h2.length === 0) {
        return h1;
    }
    let concat: Uint8Array;
    if (compareHashValues(h1, h2) < 0) {
        concat = concatenate(h1, h2);
    } else {
        concat = concatenate(h2, h1);
    }
    const hash = createHash('sha256');
    hash.update(concat);
    const newDigest: Uint8Array = hash.digest();
    return newDigest;
}