Add deserializing constructors to CTransaction and CMutableTransaction

Author: sipa

src/primitives/transaction.cpp

@@ -78,6 +78,10 @@ CTransaction::CTransaction(const CMutableTransaction &tx) : nVersion(tx.nVersion
     UpdateHash();
 }
 
+CTransaction::CTransaction(CMutableTransaction &&tx) : nVersion(tx.nVersion), vin(std::move(tx.vin)), vout(std::move(tx.vout)), wit(std::move(tx.wit)), nLockTime(tx.nLockTime) {
+    UpdateHash();
+}
+
 CTransaction& CTransaction::operator=(const CTransaction &tx) {
     *const_cast<int*>(&nVersion) = tx.nVersion;
     *const_cast<std::vector<CTxIn>*>(&vin) = tx.vin;

src/primitives/transaction.h

@@ -379,6 +379,7 @@ class CTransaction
 
     /** Convert a CMutableTransaction into a CTransaction. */
     CTransaction(const CMutableTransaction &tx);
+    CTransaction(CMutableTransaction &&tx);
 
     CTransaction& operator=(const CTransaction& tx);
 
@@ -392,6 +393,9 @@ class CTransaction
         }
     }
 
+    template <typename Stream>
+    CTransaction(deserialize_type, Stream& s) : CTransaction(CMutableTransaction(deserialize, s)) {}
+
     bool IsNull() const {
         return vin.empty() && vout.empty();
     }
@@ -460,6 +464,11 @@ struct CMutableTransaction
         SerializeTransaction(*this, s, ser_action);
     }
 
+    template <typename Stream>
+    CMutableTransaction(deserialize_type, Stream& s) {
+        Unserialize(s);
+    }
+
     /** Compute the hash of this CMutableTransaction. This is computed on the
      * fly, as opposed to GetHash() in CTransaction, which uses a cached result.
      */