wallet refactor: use CWalletTx member functions to determine tx state

src/wallet/interfaces.cpp

@@ -101,7 +101,7 @@ WalletTxStatus MakeWalletTxStatus(const CWallet& wallet, const CWalletTx& wtx)
     result.is_trusted = CachedTxIsTrusted(wallet, wtx);
     result.is_abandoned = wtx.isAbandoned();
     result.is_coinbase = wtx.IsCoinBase();
-    result.is_in_main_chain = wallet.IsTxInMainChain(wtx);
+    result.is_in_main_chain = wtx.isConfirmed();
     return result;
 }
 

src/wallet/receive.cpp

@@ -149,7 +149,7 @@ CAmount CachedTxGetImmatureCredit(const CWallet& wallet, const CWalletTx& wtx, c
 {
     AssertLockHeld(wallet.cs_wallet);
 
-    if (wallet.IsTxImmatureCoinBase(wtx) && wallet.IsTxInMainChain(wtx)) {
+    if (wallet.IsTxImmatureCoinBase(wtx) && wtx.isConfirmed()) {
         return GetCachableAmount(wallet, wtx, CWalletTx::IMMATURE_CREDIT, filter);
     }
 
@@ -256,9 +256,8 @@ bool CachedTxIsFromMe(const CWallet& wallet, const CWalletTx& wtx, const isminef
 bool CachedTxIsTrusted(const CWallet& wallet, const CWalletTx& wtx, std::set<uint256>& trusted_parents)
 {
     AssertLockHeld(wallet.cs_wallet);
-    int nDepth = wallet.GetTxDepthInMainChain(wtx);
-    if (nDepth >= 1) return true;
-    if (nDepth < 0) return false;
+    if (wtx.isConfirmed()) return true;
+    if (wtx.isBlockConflicted()) return false;
     // using wtx's cached debit
     if (!wallet.m_spend_zero_conf_change || !CachedTxIsFromMe(wallet, wtx, ISMINE_ALL)) return false;
 

src/wallet/wallet.cpp

@@ -752,8 +752,8 @@ bool CWallet::IsSpent(const COutPoint& outpoint) const
         const uint256& wtxid = it->second;
         const auto mit = mapWallet.find(wtxid);
         if (mit != mapWallet.end()) {
-            int depth = GetTxDepthInMainChain(mit->second);
-            if (depth > 0  || (depth == 0 && !mit->second.isAbandoned()))
+            const auto& wtx = mit->second;
+            if (!wtx.isAbandoned() && !wtx.isBlockConflicted())
                 return true; // Spent
         }
     }

src/wallet/wallet.h

@@ -515,11 +515,6 @@ public:
      * referenced in transaction, and might cause assert failures.
      */
     int GetTxDepthInMainChain(const CWalletTx& wtx) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
-    bool IsTxInMainChain(const CWalletTx& wtx) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet)
-    {
-        AssertLockHeld(cs_wallet);
-        return GetTxDepthInMainChain(wtx) > 0;
-    }
 
     /**
      * @return number of blocks to maturity for this transaction: