From 119e552f7ccd49c0137a3c6b4f94018a84d69620 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Wed, 26 Apr 2017 16:09:27 -0700
Subject: [PATCH] Merge CCoinsViewCache's GetOutputFor and AccessCoin

They're doing the same thing now.
---
 src/coins.cpp               | 9 +--------
 src/coins.h                 | 2 --
 src/consensus/tx_verify.cpp | 4 ++--
 src/policy/policy.cpp       | 4 ++--
 4 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/src/coins.cpp b/src/coins.cpp
index 09fd2b13d0..59bcdce9c4 100644
--- a/src/coins.cpp
+++ b/src/coins.cpp
@@ -213,13 +213,6 @@ unsigned int CCoinsViewCache::GetCacheSize() const {
     return cacheCoins.size();
 }
 
-const CTxOut &CCoinsViewCache::GetOutputFor(const CTxIn& input) const
-{
-    const Coin& coin = AccessCoin(input.prevout);
-    assert(!coin.IsPruned());
-    return coin.out;
-}
-
 CAmount CCoinsViewCache::GetValueIn(const CTransaction& tx) const
 {
     if (tx.IsCoinBase())
@@ -227,7 +220,7 @@ CAmount CCoinsViewCache::GetValueIn(const CTransaction& tx) const
 
     CAmount nResult = 0;
     for (unsigned int i = 0; i < tx.vin.size(); i++)
-        nResult += GetOutputFor(tx.vin[i]).nValue;
+        nResult += AccessCoin(tx.vin[i].prevout).out.nValue;
 
     return nResult;
 }
diff --git a/src/coins.h b/src/coins.h
index 43da9a3c63..1203c3fada 100644
--- a/src/coins.h
+++ b/src/coins.h
@@ -272,8 +272,6 @@ public:
     //! Check whether all prevouts of the transaction are present in the UTXO set represented by this view
     bool HaveInputs(const CTransaction& tx) const;
 
-    const CTxOut &GetOutputFor(const CTxIn& input) const;
-
 private:
     CCoinsMap::iterator FetchCoins(const COutPoint &outpoint) const;
 
diff --git a/src/consensus/tx_verify.cpp b/src/consensus/tx_verify.cpp
index 9a6f3c9cdc..1195a15613 100644
--- a/src/consensus/tx_verify.cpp
+++ b/src/consensus/tx_verify.cpp
@@ -126,7 +126,7 @@ unsigned int GetP2SHSigOpCount(const CTransaction& tx, const CCoinsViewCache& in
     unsigned int nSigOps = 0;
     for (unsigned int i = 0; i < tx.vin.size(); i++)
     {
-        const CTxOut &prevout = inputs.GetOutputFor(tx.vin[i]);
+        const CTxOut &prevout = inputs.AccessCoin(tx.vin[i].prevout).out;
         if (prevout.scriptPubKey.IsPayToScriptHash())
             nSigOps += prevout.scriptPubKey.GetSigOpCount(tx.vin[i].scriptSig);
     }
@@ -146,7 +146,7 @@ int64_t GetTransactionSigOpCost(const CTransaction& tx, const CCoinsViewCache& i
 
     for (unsigned int i = 0; i < tx.vin.size(); i++)
     {
-        const CTxOut &prevout = inputs.GetOutputFor(tx.vin[i]);
+        const CTxOut &prevout = inputs.AccessCoin(tx.vin[i].prevout).out;
         nSigOps += CountWitnessSigOps(tx.vin[i].scriptSig, prevout.scriptPubKey, &tx.vin[i].scriptWitness, flags);
     }
     return nSigOps;
diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp
index f4fffd6578..14d58e7442 100644
--- a/src/policy/policy.cpp
+++ b/src/policy/policy.cpp
@@ -165,7 +165,7 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs)
 
     for (unsigned int i = 0; i < tx.vin.size(); i++)
     {
-        const CTxOut& prev = mapInputs.GetOutputFor(tx.vin[i]);
+        const CTxOut& prev = mapInputs.AccessCoin(tx.vin[i].prevout).out;
 
         std::vector<std::vector<unsigned char> > vSolutions;
         txnouttype whichType;
@@ -204,7 +204,7 @@ bool IsWitnessStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs)
         if (tx.vin[i].scriptWitness.IsNull())
             continue;
 
-        const CTxOut &prev = mapInputs.GetOutputFor(tx.vin[i]);
+        const CTxOut &prev = mapInputs.AccessCoin(tx.vin[i].prevout).out;
 
         // get the scriptPubKey corresponding to this input:
         CScript prevScript = prev.scriptPubKey;