Method GetPrivKey

src/script/descriptor.cpp:332–338

    bool m_xonly;

    std::optional<CKey> GetPrivKey(const SigningProvider& arg) const
    {
        CKey key;
        if (!(m_xonly ? arg.GetKeyByXOnly(XOnlyPubKey(m_pubkey), key) :
                        arg.GetKey(m_pubkey.GetID(), key))) return std::nullopt;
        return key;
    }

public:
    ConstPubkeyProvider(uint32_t exp_index, const CPubKey& pubkey, bool xonly) : PubkeyProvider(exp_index), m_pubkey(pubkey), m_xonly(xonly) {}