Method Unserialize

src/script/sign.h:471–533

    template <typename Stream>
    inline void Unserialize(Stream& s) {
        // Read loop
        bool found_sep = false;
        while(!s.empty()) {
            // Read
            std::vector<unsigned char> key;
            s >> key;

            // the key is empty if that was actually a separator byte
            // This is a special case for key lengths 0 as those are not allowed (except for separator)
            if (key.empty()) {
                found_sep = true;
                break;
            }

            // First byte of key is the type
            unsigned char type = key[0];

            // Do stuff based on type
            switch(type) {
                case PSBT_OUT_REDEEMSCRIPT:
                {
                    if (!redeem_script.empty()) {
                        throw std::ios_base::failure("Duplicate Key, output redeemScript already provided");
                    } else if (key.size() != 1) {
                        throw std::ios_base::failure("Output redeemScript key is more than one byte type");
                    }
                    s >> redeem_script;
                    break;
                }
                case PSBT_OUT_WITNESSSCRIPT:
                {
                    if (!witness_script.empty()) {
                        throw std::ios_base::failure("Duplicate Key, output witnessScript already provided");
                    } else if (key.size() != 1) {
                        throw std::ios_base::failure("Output witnessScript key is more than one byte type");
                    }
                    s >> witness_script;
                    break;
                }
                case PSBT_OUT_BIP32_DERIVATION:
                {
                    DeserializeHDKeypaths(s, key, hd_keypaths);
                    break;
                }
                // Unknown stuff
                default: {
                    if (unknown.count(key) > 0) {
                        throw std::ios_base::failure("Duplicate Key, key for unknown value already provided");
                    }
                    // Read in the value
                    std::vector<unsigned char> val_bytes;
                    s >> val_bytes;
                    unknown.emplace(std::move(key), std::move(val_bytes));
                    break;
                }
            }
        }