wallet, refactor: Convert uint256 to Txid in wallet interfaces

In most cases throughout the wallet, the implicit conversion from `Txid` to
`const uint256&` works. However, `commitBumpTransaction` requires a `uint256&`
out parameter, so `bumped_txid` in `feebumper::CommitTransaction` is also
updated here to use `Txid`.

src/interfaces/wallet.h

@@ -160,16 +160,16 @@ public:
         WalletOrderForm order_form) = 0;
 
     //! Return whether transaction can be abandoned.
-    virtual bool transactionCanBeAbandoned(const uint256& txid) = 0;
+    virtual bool transactionCanBeAbandoned(const Txid& txid) = 0;
 
     //! Abandon transaction.
-    virtual bool abandonTransaction(const uint256& txid) = 0;
+    virtual bool abandonTransaction(const Txid& txid) = 0;
 
     //! Return whether transaction can be bumped.
-    virtual bool transactionCanBeBumped(const uint256& txid) = 0;
+    virtual bool transactionCanBeBumped(const Txid& txid) = 0;
 
     //! Create bump transaction.
-    virtual bool createBumpTransaction(const uint256& txid,
+    virtual bool createBumpTransaction(const Txid& txid,
         const wallet::CCoinControl& coin_control,
         std::vector<bilingual_str>& errors,
         CAmount& old_fee,
@@ -180,28 +180,28 @@ public:
     virtual bool signBumpTransaction(CMutableTransaction& mtx) = 0;
 
     //! Commit bump transaction.
-    virtual bool commitBumpTransaction(const uint256& txid,
+    virtual bool commitBumpTransaction(const Txid& txid,
         CMutableTransaction&& mtx,
         std::vector<bilingual_str>& errors,
-        uint256& bumped_txid) = 0;
+        Txid& bumped_txid) = 0;
 
     //! Get a transaction.
-    virtual CTransactionRef getTx(const uint256& txid) = 0;
+    virtual CTransactionRef getTx(const Txid& txid) = 0;
 
     //! Get transaction information.
-    virtual WalletTx getWalletTx(const uint256& txid) = 0;
+    virtual WalletTx getWalletTx(const Txid& txid) = 0;
 
     //! Get list of all wallet transactions.
     virtual std::set<WalletTx> getWalletTxs() = 0;
 
     //! Try to get updated status for a particular transaction, if possible without blocking.
-    virtual bool tryGetTxStatus(const uint256& txid,
+    virtual bool tryGetTxStatus(const Txid& txid,
         WalletTxStatus& tx_status,
         int& num_blocks,
         int64_t& block_time) = 0;
 
     //! Get transaction details.
-    virtual WalletTx getWalletTxDetails(const uint256& txid,
+    virtual WalletTx getWalletTxDetails(const Txid& txid,
         WalletTxStatus& tx_status,
         WalletOrderForm& order_form,
         bool& in_mempool,

src/qt/walletmodel.cpp

@@ -561,15 +561,11 @@ bool WalletModel::bumpFee(Txid hash, Txid& new_hash)
         return false;
     }
     // commit the bumped transaction
-    // Temporary uint256 variable needed for commitBumpTransaction out parameter.
+    if(!m_wallet->commitBumpTransaction(hash, std::move(mtx), errors, new_hash)) {
-    uint256 bumped_txid_result;
-    if(!m_wallet->commitBumpTransaction(hash, std::move(mtx), errors, bumped_txid_result)) {
         QMessageBox::critical(nullptr, tr("Fee bump error"), tr("Could not commit transaction") + "<br />(" +
             QString::fromStdString(errors[0].translated)+")");
         return false;
     }
-    // Assign the received txid back to the new_hash.
-    new_hash = Txid::FromUint256(bumped_txid_result);
     return true;
 }
 

src/wallet/feebumper.cpp

@@ -353,7 +353,7 @@ bool SignTransaction(CWallet& wallet, CMutableTransaction& mtx) {
     }
 }
 
-Result CommitTransaction(CWallet& wallet, const uint256& txid, CMutableTransaction&& mtx, std::vector<bilingual_str>& errors, uint256& bumped_txid)
+Result CommitTransaction(CWallet& wallet, const uint256& txid, CMutableTransaction&& mtx, std::vector<bilingual_str>& errors, Txid& bumped_txid)
 {
     LOCK(wallet.cs_wallet);
     if (!errors.empty()) {

src/wallet/feebumper.h

@@ -70,7 +70,7 @@ Result CommitTransaction(CWallet& wallet,
     const uint256& txid,
     CMutableTransaction&& mtx,
     std::vector<bilingual_str>& errors,
-    uint256& bumped_txid);
+    Txid& bumped_txid);
 
 struct SignatureWeights
 {

src/wallet/interfaces.cpp

@@ -299,17 +299,17 @@ public:
         LOCK(m_wallet->cs_wallet);
         m_wallet->CommitTransaction(std::move(tx), std::move(value_map), std::move(order_form));
     }
-    bool transactionCanBeAbandoned(const uint256& txid) override { return m_wallet->TransactionCanBeAbandoned(txid); }
+    bool transactionCanBeAbandoned(const Txid& txid) override { return m_wallet->TransactionCanBeAbandoned(txid); }
-    bool abandonTransaction(const uint256& txid) override
+    bool abandonTransaction(const Txid& txid) override
     {
         LOCK(m_wallet->cs_wallet);
         return m_wallet->AbandonTransaction(txid);
     }
-    bool transactionCanBeBumped(const uint256& txid) override
+    bool transactionCanBeBumped(const Txid& txid) override
     {
         return feebumper::TransactionCanBeBumped(*m_wallet.get(), txid);
     }
-    bool createBumpTransaction(const uint256& txid,
+    bool createBumpTransaction(const Txid& txid,
         const CCoinControl& coin_control,
         std::vector<bilingual_str>& errors,
         CAmount& old_fee,
@@ -320,15 +320,15 @@ public:
         return feebumper::CreateRateBumpTransaction(*m_wallet.get(), txid, coin_control, errors, old_fee, new_fee, mtx, /* require_mine= */ true, outputs) == feebumper::Result::OK;
     }
     bool signBumpTransaction(CMutableTransaction& mtx) override { return feebumper::SignTransaction(*m_wallet.get(), mtx); }
-    bool commitBumpTransaction(const uint256& txid,
+    bool commitBumpTransaction(const Txid& txid,
         CMutableTransaction&& mtx,
         std::vector<bilingual_str>& errors,
-        uint256& bumped_txid) override
+        Txid& bumped_txid) override
     {
         return feebumper::CommitTransaction(*m_wallet.get(), txid, std::move(mtx), errors, bumped_txid) ==
                feebumper::Result::OK;
     }
-    CTransactionRef getTx(const uint256& txid) override
+    CTransactionRef getTx(const Txid& txid) override
     {
         LOCK(m_wallet->cs_wallet);
         auto mi = m_wallet->mapWallet.find(txid);
@@ -337,7 +337,7 @@ public:
         }
         return {};
     }
-    WalletTx getWalletTx(const uint256& txid) override
+    WalletTx getWalletTx(const Txid& txid) override
     {
         LOCK(m_wallet->cs_wallet);
         auto mi = m_wallet->mapWallet.find(txid);
@@ -355,7 +355,7 @@ public:
         }
         return result;
     }
-    bool tryGetTxStatus(const uint256& txid,
+    bool tryGetTxStatus(const Txid& txid,
         interfaces::WalletTxStatus& tx_status,
         int& num_blocks,
         int64_t& block_time) override
@@ -374,7 +374,7 @@ public:
         tx_status = MakeWalletTxStatus(*m_wallet, mi->second);
         return true;
     }
-    WalletTx getWalletTxDetails(const uint256& txid,
+    WalletTx getWalletTxDetails(const Txid& txid,
         WalletTxStatus& tx_status,
         WalletOrderForm& order_form,
         bool& in_mempool,

src/wallet/rpc/spend.cpp

@@ -1165,7 +1165,7 @@ static RPCHelpMan bumpfee_helper(std::string method_name)
             throw JSONRPCError(RPC_WALLET_ERROR, "Can't sign transaction.");
         }
 
-        uint256 txid;
+        Txid txid;
         if (feebumper::CommitTransaction(*pwallet, hash, std::move(mtx), errors, txid) != feebumper::Result::OK) {
             throw JSONRPCError(RPC_WALLET_ERROR, errors[0].original);
         }