Method AddWalletDescriptor

src/wallet/wallet.cpp:3830–3882

}

ScriptPubKeyMan* CWallet::AddWalletDescriptor(WalletDescriptor& desc, const FlatSigningProvider& signing_provider, const std::string& label, bool internal)
{
    AssertLockHeld(cs_wallet);

    if (!IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS)) {
        WalletLogPrintf("Cannot add WalletDescriptor to a non-descriptor wallet\n");
        return nullptr;
    }

    auto spk_man = GetDescriptorScriptPubKeyMan(desc);
    if (spk_man) {
        WalletLogPrintf("Update existing descriptor: %s\n", desc.descriptor->ToString());
        spk_man->UpdateWalletDescriptor(desc);
    } else {
        auto new_spk_man = std::unique_ptr<DescriptorScriptPubKeyMan>(new DescriptorScriptPubKeyMan(*this, desc));
        spk_man = new_spk_man.get();

        // Save the descriptor to memory
        m_spk_managers[new_spk_man->GetID()] = std::move(new_spk_man);
    }

    // Add the private keys to the descriptor
    for (const auto& entry : signing_provider.keys) {
        const CKey& key = entry.second;
        spk_man->AddDescriptorKey(key, key.GetPubKey());
    }

    // Top up key pool, the manager will generate new scriptPubKeys internally
    if (!spk_man->TopUp()) {
        WalletLogPrintf("Could not top up scriptPubKeys\n");
        return nullptr;
    }

    // Apply the label if necessary
    // Note: we disable labels for ranged descriptors
    if (!desc.descriptor->IsRange()) {
        auto script_pub_keys = spk_man->GetScriptPubKeys();
        if (script_pub_keys.empty()) {
            WalletLogPrintf("Could not generate scriptPubKeys (cache is empty)\n");
            return nullptr;
        }

        CTxDestination dest;
        if (!internal && ExtractDestination(script_pub_keys.at(0), dest)) {
            SetAddressBook(dest, label, "receive");
        }
    }

    // Save the descriptor to DB
    spk_man->WriteDescriptor();

    return spk_man;
}

CAmount CWalletTx::GetOutputValueOut(const CWallet& wallet, unsigned int output_index) const {
    CAmount ret;