Move memo member varible from SproutNotePlaintext to BaseNotePlaintext.

Add memo() accessor to BaseNotePlaintext.

src/gtest/test_joinsplit.cpp

@@ -548,7 +548,7 @@ TEST(joinsplit, note_plaintexts)
     ASSERT_TRUE(decrypted_note.r == note.r);
     ASSERT_TRUE(decrypted_note.value() == note.value());
 
-    ASSERT_TRUE(decrypted.memo == note_pt.memo);
+    ASSERT_TRUE(decrypted.memo() == note_pt.memo());
 
     // Check serialization of note plaintext
     CDataStream ss(SER_DISK, PROTOCOL_VERSION);
@@ -557,7 +557,7 @@ TEST(joinsplit, note_plaintexts)
     ss >> note_pt2;
     ASSERT_EQ(note_pt.value(), note.value());
     ASSERT_EQ(note_pt.value(), note_pt2.value());
-    ASSERT_EQ(note_pt.memo, note_pt2.memo);
+    ASSERT_EQ(note_pt.memo(), note_pt2.memo());
     ASSERT_EQ(note_pt.rho, note_pt2.rho);
     ASSERT_EQ(note_pt.r, note_pt2.r);
 }

src/wallet/asyncrpcoperation_sendmany.cpp

@@ -885,7 +885,7 @@ bool AsyncRPCOperation_sendmany::find_unspent_notes() {
 
     for (CSproutNotePlaintextEntry & entry : entries) {
         z_inputs_.push_back(SendManyInputJSOP(entry.jsop, entry.plaintext.note(frompaymentaddress_), CAmount(entry.plaintext.value())));
-        std::string data(entry.plaintext.memo.begin(), entry.plaintext.memo.end());
+        std::string data(entry.plaintext.memo().begin(), entry.plaintext.memo().end());
         LogPrint("zrpcunsafe", "%s: found unspent note (txid=%s, vjoinsplit=%d, ciphertext=%d, amount=%s, memo=%s)\n",
             getId(),
             entry.jsop.hash.ToString().substr(0, 10),

src/wallet/rpcdisclosure.cpp

@@ -277,7 +277,7 @@ UniValue z_validatepaymentdisclosure(const UniValue& params, bool fHelp)
             SproutNotePlaintext npt;
             ssPlain >> npt;
 
-            string memoHexString = HexStr(npt.memo.data(), npt.memo.data() + npt.memo.size());
+            string memoHexString = HexStr(npt.memo().data(), npt.memo().data() + npt.memo().size());
             o.push_back(Pair("memo", memoHexString));
             o.push_back(Pair("value", ValueFromAmount(npt.value())));
             

src/wallet/rpcwallet.cpp

@@ -2550,7 +2550,7 @@ UniValue z_listunspent(const UniValue& params, bool fHelp)
             obj.push_back(Pair("spendable", pwalletMain->HaveSpendingKey(entry.address)));
             obj.push_back(Pair("address", CZCPaymentAddress(entry.address).ToString()));
             obj.push_back(Pair("amount", ValueFromAmount(CAmount(entry.plaintext.value()))));
-            std::string data(entry.plaintext.memo.begin(), entry.plaintext.memo.end());
+            std::string data(entry.plaintext.memo().begin(), entry.plaintext.memo().end());
             obj.push_back(Pair("memo", HexStr(data)));
             results.push_back(obj);
         }
@@ -3241,7 +3241,7 @@ UniValue z_listreceivedbyaddress(const UniValue& params, bool fHelp)
         UniValue obj(UniValue::VOBJ);
         obj.push_back(Pair("txid",entry.jsop.hash.ToString()));
         obj.push_back(Pair("amount", ValueFromAmount(CAmount(entry.plaintext.value()))));
-        std::string data(entry.plaintext.memo.begin(), entry.plaintext.memo.end());
+        std::string data(entry.plaintext.memo().begin(), entry.plaintext.memo().end());
         obj.push_back(Pair("memo", HexStr(data)));
         // (txid, jsindex, jsoutindex) is needed to globally identify a note
         obj.push_back(Pair("jsindex", entry.jsop.js));

src/zcash/Note.cpp

@@ -40,9 +40,8 @@ uint256 SproutNote::nullifier(const SpendingKey& a_sk) const {
 
 SproutNotePlaintext::SproutNotePlaintext(
     const SproutNote& note,
-    boost::array<unsigned char, ZC_MEMO_SIZE> memo) : memo(memo)
+    boost::array<unsigned char, ZC_MEMO_SIZE> memo) : BaseNotePlaintext(note, memo)
 {
-    value_ = note.value();
     rho = note.rho;
     r = note.r;
 }

src/zcash/Note.hpp

@@ -41,18 +41,21 @@ public:
 class BaseNotePlaintext {
 protected:
     uint64_t value_ = 0;
+    boost::array<unsigned char, ZC_MEMO_SIZE> memo_;
 public:
     BaseNotePlaintext() {}
+    BaseNotePlaintext(const BaseNote& note, boost::array<unsigned char, ZC_MEMO_SIZE> memo)
+        : value_(note.value()), memo_(memo) {}
     virtual ~BaseNotePlaintext() {}
 
     inline uint64_t value() const { return value_; }
+    inline boost::array<unsigned char, ZC_MEMO_SIZE> memo() const { return memo_; }
 };
 
 class SproutNotePlaintext : public BaseNotePlaintext {
 public:
     uint256 rho;
     uint256 r;
-    boost::array<unsigned char, ZC_MEMO_SIZE> memo;
 
     SproutNotePlaintext() {}
 
@@ -76,7 +79,7 @@ public:
         READWRITE(value_);
         READWRITE(rho);
         READWRITE(r);
-        READWRITE(memo);
+        READWRITE(memo_);
     }
 
     static SproutNotePlaintext decrypt(const ZCNoteDecryption& decryptor,