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Optimization: only test for witness scripts at top level

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Inside P2SH scripts we already know that the P2SH script version of witness keys/scripts
are acceptable, so there is no need to test for it again.
This commit is contained in:
Pieter Wuille 2018-04-16 16:36:17 -07:00
parent 3619735b09
commit 08f3228654
1 changed files with 2 additions and 2 deletions
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4
src/script/ismine.cpp
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@ -70,7 +70,7 @@ static isminetype IsMineInner(const CKeyStore& keystore, const CScript& scriptPu
break;
case TX_WITNESS_V0_KEYHASH:
{
if (!keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
if (sigversion == IsMineSigVersion::TOP && !keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
// We do not support bare witness outputs unless the P2SH version of it would be
// acceptable as well. This protects against matching before segwit activates.
// This also applies to the P2WSH case.
@ -106,7 +106,7 @@ static isminetype IsMineInner(const CKeyStore& keystore, const CScript& scriptPu
}
case TX_WITNESS_V0_SCRIPTHASH:
{
if (!keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
if (sigversion == IsMineSigVersion::TOP && !keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
break;
}
uint160 hash;