Method Combine

src/script/standard.cpp:370–390

static*/

}

/*static*/ TaprootBuilder::NodeInfo TaprootBuilder::Combine(NodeInfo&& a, NodeInfo&& b)
{
    NodeInfo ret;
    /* Iterate over all tracked leaves in a, add b's hash to their Merkle branch, and move them to ret. */
    for (auto& leaf : a.leaves) {
        leaf.merkle_branch.push_back(b.hash);
        ret.leaves.emplace_back(std::move(leaf));
    }
    /* Iterate over all tracked leaves in b, add a's hash to their Merkle branch, and move them to ret. */
    for (auto& leaf : b.leaves) {
        leaf.merkle_branch.push_back(a.hash);
        ret.leaves.emplace_back(std::move(leaf));
    }
    /* Lexicographically sort a and b's hash, and compute parent hash. */
    if (a.hash < b.hash) {
        ret.hash = (CHashWriter(HASHER_TAPBRANCH_ELEMENTS) << a.hash << b.hash).GetSHA256();
    } else {
        ret.hash = (CHashWriter(HASHER_TAPBRANCH_ELEMENTS) << b.hash << a.hash).GetSHA256();
    }
    return ret;
}

void TaprootSpendData::Merge(TaprootSpendData other)
{