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desprout

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This commit is contained in:
Duke Leto
2020-06-04 21:51:49 -04:00
parent b32bf1f82c
commit da6c0028a3
1 changed files with 0 additions and 29 deletions
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29
src/coins.cpp
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@@ -626,35 +626,6 @@ CAmount CCoinsViewCache::GetValueIn(int32_t nHeight,int64_t *interestp,const CTr
bool CCoinsViewCache::HaveJoinSplitRequirements(const CTransaction& tx) const bool CCoinsViewCache::HaveJoinSplitRequirements(const CTransaction& tx) const
{ {
boost::unordered_map<uint256, SproutMerkleTree, CCoinsKeyHasher> intermediates;
BOOST_FOREACH(const JSDescription &joinsplit, tx.vjoinsplit)
{
BOOST_FOREACH(const uint256& nullifier, joinsplit.nullifiers)
{
if (GetNullifier(nullifier, SPROUT)) {
// If the nullifier is set, this transaction
// double-spends!
return false;
}
}
SproutMerkleTree tree;
auto it = intermediates.find(joinsplit.anchor);
if (it != intermediates.end()) {
tree = it->second;
} else if (!GetSproutAnchorAt(joinsplit.anchor, tree)) {
return false;
}
BOOST_FOREACH(const uint256& commitment, joinsplit.commitments)
{
tree.append(commitment);
}
intermediates.insert(std::make_pair(tree.root(), tree));
}
for (const SpendDescription &spendDescription : tx.vShieldedSpend) { for (const SpendDescription &spendDescription : tx.vShieldedSpend) {
if (GetNullifier(spendDescription.nullifier, SAPLING)) { // Prevent double spends if (GetNullifier(spendDescription.nullifier, SAPLING)) { // Prevent double spends
LogPrintf("%s: sapling nullifier %s exists, preventing double spend\n", __FUNCTION__, spendDescription.nullifier.GetHex().c_str()); LogPrintf("%s: sapling nullifier %s exists, preventing double spend\n", __FUNCTION__, spendDescription.nullifier.GetHex().c_str());