Method Expand

src/script/descriptor.cpp:343–363

        return true;
    }
    bool Expand(int pos, const SigningProvider& arg, std::vector<CScript>& output_scripts, FlatSigningProvider& out) const override
    {
        CPubKey key;
        if (!m_provider->GetPubKey(pos, arg, key)) return false;
        CKeyID keyid = key.GetID();
        {
            CScript p2pk = GetScriptForRawPubKey(key);
            CScript p2pkh = GetScriptForDestination(keyid);
            output_scripts = std::vector<CScript>{std::move(p2pk), std::move(p2pkh)};
            out.pubkeys.emplace(keyid, key);
        }
        if (key.IsCompressed()) {
            CScript p2wpkh = GetScriptForDestination(WitnessV0KeyHash(keyid));
            CScriptID p2wpkh_id(p2wpkh);
            CScript p2sh_p2wpkh = GetScriptForDestination(p2wpkh_id);
            out.scripts.emplace(p2wpkh_id, p2wpkh);
            output_scripts.push_back(std::move(p2wpkh));
            output_scripts.push_back(std::move(p2sh_p2wpkh));
        }
        return true;
    }
};

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