do not store unspendable coins.

lib/bcoin/chaindb.js

@@ -844,6 +844,10 @@ ChainDB.prototype.connectBlock = function connectBlock(block, batch, callback) {
       for (j = 0; j < tx.outputs.length; j++) {
         output = tx.outputs[j];
         key = hash + '/' + j;
+
+        if (output.script.isUnspendable())
+          continue;
+
         coin = bcoin.coin(tx, j);
 
         if (self.options.indexAddress) {
@@ -931,6 +935,9 @@ ChainDB.prototype.disconnectBlock = function disconnectBlock(block, batch, callb
         output = tx.outputs[j];
         key = hash + '/' + j;
 
+        if (output.script.isUnspendable())
+          continue;
+
         if (self.options.indexAddress) {
           address = output.getAddress();
           if (address)

lib/bcoin/mempool.js

@@ -1374,10 +1374,11 @@ Mempool.prototype._addUnchecked = function addUnchecked(tx, callback, force) {
   batch.put('t/' + hash, tx.toExtended());
   batch.put('m/' + pad32(tx.ps) + '/' + hash, DUMMY);
 
-  addresses = tx.getAddresses();
+  if (this.options.indexAddress) {
-
+    addresses = tx.getAddresses();
-  for (i = 0; i < addresses.length; i++)
+    for (i = 0; i < addresses.length; i++)
-    batch.put('T/' + addresses[i] + '/' + hash, DUMMY);
+      batch.put('T/' + addresses[i] + '/' + hash, DUMMY);
+  }
 
   for (i = 0; i < tx.inputs.length; i++) {
     input = tx.inputs[i];
@@ -1388,25 +1389,32 @@ Mempool.prototype._addUnchecked = function addUnchecked(tx, callback, force) {
 
     assert(input.coin);
 
-    address = input.getAddress();
-
     batch.del('c/' + key);
     batch.put('s/' + key, tx.hash());
 
-    if (address)
+    if (this.options.indexAddress) {
-      batch.del('C/' + address + '/' + key);
+      address = input.getAddress();
+      if (address)
+        batch.del('C/' + address + '/' + key);
+    }
   }
 
   for (i = 0; i < tx.outputs.length; i++) {
     output = tx.outputs[i];
     key = hash + '/' + i;
-    address = output.getAddress();
+
+    if (output.script.isUnspendable())
+      continue;
+
     coin = bcoin.coin(tx, i).toRaw();
 
     batch.put('c/' + key, coin);
 
-    if (address)
+    if (this.options.indexAddress) {
-      batch.put('C/' + address + '/' + key, DUMMY);
+      address = output.getAddress();
+      if (address)
+        batch.put('C/' + address + '/' + key, DUMMY);
+    }
   }
 
   return batch.write(callback);
@@ -1445,10 +1453,11 @@ Mempool.prototype._removeUnchecked = function removeUnchecked(hash, callback, fo
     batch.del('t/' + hash);
     batch.del('m/' + pad32(tx.ps) + '/' + hash);
 
-    addresses = tx.getAddresses();
+    if (self.options.indexAddress) {
-
+      addresses = tx.getAddresses();
-    for (i = 0; i < addresses.length; i++)
+      for (i = 0; i < addresses.length; i++)
-      batch.del('T/' + addresses[i] + '/' + hash);
+        batch.del('T/' + addresses[i] + '/' + hash);
+    }
 
     utils.forEachSerial(tx.inputs, function(input, next) {
       var key = input.prevout.hash + '/' + input.prevout.index;
@@ -1460,8 +1469,6 @@ Mempool.prototype._removeUnchecked = function removeUnchecked(hash, callback, fo
       if (!input.coin)
         return next();
 
-      address = input.getAddress();
-
       batch.del('s/' + key);
 
       self.hasTX(input.prevout.hash, function(err, result) {
@@ -1470,12 +1477,18 @@ Mempool.prototype._removeUnchecked = function removeUnchecked(hash, callback, fo
 
         if (result) {
           batch.put('c/' + key, input.coin.toRaw());
-          if (address)
+          if (self.options.indexAddress) {
-            batch.put('C/' + address + '/' + key, DUMMY);
+            address = input.getAddress();
+            if (address)
+              batch.put('C/' + address + '/' + key, DUMMY);
+          }
         } else {
           batch.del('c/' + key);
-          if (address)
+          if (self.options.indexAddress) {
-            batch.del('C/' + address + '/' + key);
+            address = input.getAddress();
+            if (address)
+              batch.del('C/' + address + '/' + key);
+          }
         }
 
         next();
@@ -1487,12 +1500,17 @@ Mempool.prototype._removeUnchecked = function removeUnchecked(hash, callback, fo
       for (i = 0; i < tx.outputs.length; i++) {
         output = tx.outputs[i];
         key = hash + '/' + i;
-        address = output.getAddress();
+
+        if (output.script.isUnspendable())
+          continue;
 
         batch.del('c/' + key);
 
-        if (address)
+        if (self.options.indexAddress) {
-          batch.del('C/' + address + '/' + key);
+          address = output.getAddress();
+          if (address)
+            batch.del('C/' + address + '/' + key);
+        }
       }
 
       return batch.write(callback);

lib/bcoin/txdb.js

@@ -469,6 +469,10 @@ TXDB.prototype._add = function add(tx, map, callback, force) {
         }
 
         key = hash + '/' + i;
+
+        if (output.script.isUnspendable())
+          return next();
+
         coin = bcoin.coin(tx, i);
 
         self._getOrphans(key, function(err, orphans) {
@@ -914,6 +918,9 @@ TXDB.prototype._remove = function remove(tx, map, callback, force) {
           return;
       }
 
+      if (output.script.isUnspendable())
+        return;
+
       if (self.options.indexAddress && address) {
         map.table[address].forEach(function(id) {
           batch.del('C/' + id + '/' + key);