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-rw-r--r--src/script/interpreter.h25
1 files changed, 11 insertions, 14 deletions
diff --git a/src/script/interpreter.h b/src/script/interpreter.h
index 2800473a68..2d21aa81df 100644
--- a/src/script/interpreter.h
+++ b/src/script/interpreter.h
@@ -124,7 +124,8 @@ struct PrecomputedTransactionData
uint256 hashPrevouts, hashSequence, hashOutputs;
bool ready = false;
- explicit PrecomputedTransactionData(const CTransaction& tx);
+ template <class T>
+ explicit PrecomputedTransactionData(const T& tx);
};
enum class SigVersion
@@ -137,7 +138,8 @@ enum class SigVersion
static constexpr size_t WITNESS_V0_SCRIPTHASH_SIZE = 32;
static constexpr size_t WITNESS_V0_KEYHASH_SIZE = 20;
-uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, const CAmount& amount, SigVersion sigversion, const PrecomputedTransactionData* cache = nullptr);
+template <class T>
+uint256 SignatureHash(const CScript& scriptCode, const T& txTo, unsigned int nIn, int nHashType, const CAmount& amount, SigVersion sigversion, const PrecomputedTransactionData* cache = nullptr);
class BaseSignatureChecker
{
@@ -160,10 +162,11 @@ public:
virtual ~BaseSignatureChecker() {}
};
-class TransactionSignatureChecker : public BaseSignatureChecker
+template <class T>
+class GenericTransactionSignatureChecker : public BaseSignatureChecker
{
private:
- const CTransaction* txTo;
+ const T* txTo;
unsigned int nIn;
const CAmount amount;
const PrecomputedTransactionData* txdata;
@@ -172,21 +175,15 @@ protected:
virtual bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
public:
- TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(nullptr) {}
- TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn, const PrecomputedTransactionData& txdataIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(&txdataIn) {}
+ GenericTransactionSignatureChecker(const T* txToIn, unsigned int nInIn, const CAmount& amountIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(nullptr) {}
+ GenericTransactionSignatureChecker(const T* txToIn, unsigned int nInIn, const CAmount& amountIn, const PrecomputedTransactionData& txdataIn) : txTo(txToIn), nIn(nInIn), amount(amountIn), txdata(&txdataIn) {}
bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode, SigVersion sigversion) const override;
bool CheckLockTime(const CScriptNum& nLockTime) const override;
bool CheckSequence(const CScriptNum& nSequence) const override;
};
-class MutableTransactionSignatureChecker : public TransactionSignatureChecker
-{
-private:
- const CTransaction txTo;
-
-public:
- MutableTransactionSignatureChecker(const CMutableTransaction* txToIn, unsigned int nInIn, const CAmount& amountIn) : TransactionSignatureChecker(&txTo, nInIn, amountIn), txTo(*txToIn) {}
-};
+using TransactionSignatureChecker = GenericTransactionSignatureChecker<CTransaction>;
+using MutableTransactionSignatureChecker = GenericTransactionSignatureChecker<CMutableTransaction>;
bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, SigVersion sigversion, ScriptError* error = nullptr);
bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CScriptWitness* witness, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror = nullptr);