Mempool: Use Consensus::CheckTxInputs direclty over main::CheckInputs

src/main.h

@@ -339,6 +339,8 @@ bool ContextualCheckTransaction(const CTransaction& tx, CValidationState &state,
 /** Apply the effects of this transaction on the UTXO set represented by view */
 void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight);
 
+/** Transaction validation functions */
+
 /** Context-independent validity checks */
 bool CheckTransaction(const CTransaction& tx, CValidationState& state, libzcash::ProofVerifier& verifier);
 bool CheckTransactionWithoutProofVerification(const CTransaction& tx, CValidationState &state);
@@ -348,6 +350,17 @@ bool CheckTransactionWithoutProofVerification(const CTransaction& tx, CValidatio
  */
 bool IsStandardTx(const CTransaction& tx, std::string& reason, int nHeight = 0);
 
+namespace Consensus {
+
+/**
+ * Check whether all inputs of this transaction are valid (no double spends and amounts)
+ * This does not modify the UTXO set. This does not check scripts and sigs.
+ * Preconditions: tx.IsCoinBase() is false.
+ */
+bool CheckTxInputs(const CTransaction& tx, CValidationState& state, const CCoinsViewCache& inputs, int nSpendHeight, const Consensus::Params& consensusParams);
+
+} // namespace Consensus
+
 /**
  * Check if transaction is final and can be included in a block with the
  * specified height and time. Consensus critical.
@@ -536,10 +549,6 @@ extern CBlockTreeDB *pblocktree;
  */
 int GetSpendHeight(const CCoinsViewCache& inputs);
 
-namespace Consensus {
-bool CheckTxInputs(const CTransaction& tx, CValidationState& state, const CCoinsViewCache& inputs, int nSpendHeight, const Consensus::Params& consensusParams);
-}
-
 /** Return a CMutableTransaction with contextual default values based on set of consensus rules at height */
 CMutableTransaction CreateNewContextualCMutableTransaction(const Consensus::Params& consensusParams, int nHeight);