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Remove unnecessary drop from ExtractAtomicSwapDataPushes

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This commit is contained in:
Ori Newman 2023-02-02 23:38:12 +02:00
parent 377d9aaaeb
commit 2a2c77153e
1 changed files with 7 additions and 8 deletions
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15
domain/consensus/utils/txscript/standard.go
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@ -387,7 +387,7 @@ func ExtractAtomicSwapDataPushes(version uint16, scriptPubKey []byte) (*AtomicSw
return nil, err
}
if len(pops) != 20 {
if len(pops) != 19 {
return nil, nil
}
isAtomicSwap := pops[0].opcode.value == OpIf &&
@ -403,13 +403,12 @@ func ExtractAtomicSwapDataPushes(version uint16, scriptPubKey []byte) (*AtomicSw
pops[10].opcode.value == OpElse &&
canonicalPush(pops[11]) &&
pops[12].opcode.value == OpCheckLockTimeVerify &&
pops[13].opcode.value == OpDrop &&
pops[14].opcode.value == OpDup &&
pops[15].opcode.value == OpBlake2b &&
pops[16].opcode.value == OpData32 &&
pops[17].opcode.value == OpEndIf &&
pops[18].opcode.value == OpEqualVerify &&
pops[19].opcode.value == OpCheckSig
pops[13].opcode.value == OpDup &&
pops[14].opcode.value == OpBlake2b &&
pops[15].opcode.value == OpData32 &&
pops[16].opcode.value == OpEndIf &&
pops[17].opcode.value == OpEqualVerify &&
pops[18].opcode.value == OpCheckSig
if !isAtomicSwap {
return nil, nil
}