Method GetCandidateScriptPubKeys

src/wallet/scriptpubkeyman.cpp:463–507

}

std::unordered_set<CScript, SaltedSipHasher> LegacyDataSPKM::GetCandidateScriptPubKeys() const
{
    LOCK(cs_KeyStore);
    std::unordered_set<CScript, SaltedSipHasher> candidate_spks;

    // For every private key in the wallet, there should be a P2PK, P2PKH, P2WPKH, and P2SH-P2WPKH
    const auto& add_pubkey = [&candidate_spks](const CPubKey& pub) -> void {
        candidate_spks.insert(GetScriptForRawPubKey(pub));
        candidate_spks.insert(GetScriptForDestination(PKHash(pub)));

        CScript wpkh = GetScriptForDestination(WitnessV0KeyHash(pub));
        candidate_spks.insert(wpkh);
        candidate_spks.insert(GetScriptForDestination(ScriptHash(wpkh)));
    };
    for (const auto& [_, key] : mapKeys) {
        add_pubkey(key.GetPubKey());
    }
    for (const auto& [_, ckeypair] : mapCryptedKeys) {
        add_pubkey(ckeypair.first);
    }

    // mapScripts contains all redeemScripts and witnessScripts. Therefore each script in it has
    // itself, P2SH, P2WSH, and P2SH-P2WSH as a candidate.
    // Invalid scripts such as P2SH-P2SH and P2WSH-P2SH, among others, will be added as candidates.
    // Callers of this function will need to remove such scripts.
    const auto& add_script = [&candidate_spks](const CScript& script) -> void {
        candidate_spks.insert(script);
        candidate_spks.insert(GetScriptForDestination(ScriptHash(script)));

        CScript wsh = GetScriptForDestination(WitnessV0ScriptHash(script));
        candidate_spks.insert(wsh);
        candidate_spks.insert(GetScriptForDestination(ScriptHash(wsh)));
    };
    for (const auto& [_, script] : mapScripts) {
        add_script(script);
    }

    // Although setWatchOnly should only contain output scripts, we will also include each script's
    // P2SH, P2WSH, and P2SH-P2WSH as a precaution.
    for (const auto& script : setWatchOnly) {
        add_script(script);
    }

    return candidate_spks;
}

std::unordered_set<CScript, SaltedSipHasher> LegacyDataSPKM::GetScriptPubKeys() const
{