refactor: keep spent outputs in PrecomputedTransactionData

A BIP-341 signature message may commit to the scriptPubKeys and amounts
of all spent outputs (including other ones than the input being signed
for spends), so keep them available to signature hashing code.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/script/interpreter.h b/src/script/interpreter.h
index 0ff4c4bc95..64cefc0d6c 100644
--- a/src/script/interpreter.h
+++ b/src/script/interpreter.h
@@ -15,6 +15,7 @@
 class CPubKey;
 class CScript;
 class CTransaction;
+class CTxOut;
 class uint256;
 
 /** Signature hash types/flags */
@@ -122,11 +123,12 @@ struct PrecomputedTransactionData
 {
     uint256 hashPrevouts, hashSequence, hashOutputs;
     bool m_ready = false;
+    std::vector<CTxOut> m_spent_outputs;
 
     PrecomputedTransactionData() = default;
 
     template <class T>
-    void Init(const T& tx);
+    void Init(const T& tx, std::vector<CTxOut>&& spent_outputs);
 
     template <class T>
     explicit PrecomputedTransactionData(const T& tx);